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CAD/CAM Logo

CAD/CAM & Digital Dentistry Conference
Digital Orthodontics Symposium
Dental Technician International Meeting
Hands-On Courses: 02 May-12 May, 2018

Poster Presentations

Dr. Adam Siu, Hong Kong
Dr. Adam Siu, Hong Kong
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    Dr. Adam Siu is a Private Practitioner (limited to CAD/CAM Implants and Prosthodontics) at Central District of Hong Kong. He obtained his BDS in 1998 and MDS (Prosthodontics) in 2001 in the University of Hong Kong and now is a part time Clinical Lecturer at the University of Hong Kong for post-graduate teaching in CAD/CAM Prosthodontics and conducting several dental implant researches. His practice is totally dedicated to CAD/CAM Dentistry, especially CAD/CAM Implant Prosthodontics, achieving outstanding success rates in terms of predictability, aesthetic and precision fitting outcomes. Dr. Siu's research interests are focused on the implant prostheses for edentulous jaws, CAD/CAM Dentistry and Implant Prosthodontics, Tissue engineering for aesthetic implant restoration. He has published widely in international peer-reviewed journals in Full Mouth Reconstruction, Dental Implant Imaging and Implant Prosthodontics.
  • Poster Presentation: Novel Attachment System with Shape-Memory Alloy: The SmileLoc
    A new implant retention technology has been developed to combine the advantages of traditional screw-retained (retrievability) and cement-retained (occlusion, aesthetics) prosetheses while eliminating the disadvantages of composite resins and residual cement.
    Aim of the study: To demonstrate the usefulness of shape-memory alloy for attaching implant prostheses. Materials and Methods: This new system consists of a precision machined abutment that fits onto most commercial dental implant fixtures. The abutment accepts a shape memory sleeve (SmileLoc; Rodo Medical) that features two sets of movable flaps that switch between the “engaged” and “disengaged” positions that lock and unlock the restoration. First, the inner flaps of the sleeve engage with the abutment’s undercut. When a crown is inserted over the sleeve, the outer flaps engage the coping undercuts, thus connecting the abutment-sleeve-coping into one mechanically interlocking system. To retrieve the restoration, the sleeve is inducted by electro-magnetic device (SmileKey; Rodo Medical) to initiate a shape change that returns all flaps to the disengaged position, freeing the crown, sleeve and abutment from the undercuts. This loss of mechanical interlock allows the prosthesis to be retrieved with finger pressure. Results and Conclusions: The non-contact, electro-magnetic induced shape change SmileLoc sleeve may be a good alternative to traditional screw-retained and cement-retained implant prostheses attachment systems. This retrievable shape memory implant abutment system can be applied in implant crowns, partial and full implant bridges.
Dr Siti Bahirrah, Indonesia
Dr. Siti Bahirrah, Indonesia
  • Show CV
    Dr. Siti Bahirrah received her degree in 2002 in Orthodontic at the University of Sumatera Utara (USU) in Indonesia. Dr. Siti has been teaching at the Ortodontics Department of Faculty in Dentistry at the University of Sumatera Utara.
  • Poster Presentation: Type of Smile on Dental Students of University of Sumatera Utara in Indonesia
    Introduction: Esthetic smile became a main attention for patient and orthodontist. This is because of the high demand in the esthetic smile patients come to be treated orthodontically. This past decade, smile analysis and smile design became the key of orthodontic diagnosis and treatment planning. The height of smile line was one of the important factor to evaluate the smile. It consists of three types according to Tjan and Miller which was low, average, and high smile. The aim of this study was to observe the type of smile on dental students of University of Sumatera Utara.
    Material and Methods: This research was an observational study with a cross-sectional design. The samples of this research were done by using 70 frontal photos (postural rest photos and social smile photos) of dental students of University of Sumatera Utara that fit the inclusion criteria. Subject consisted of 30 men and 40 women in the age group of 18 to 25 years old. Each photo calculated the upper lip length, interlabial gap, clinical crown height, incisor display and the ability to elevate their lips, and then each subject classified according to their smile type. Independent t-test, Mann-Whitney test and Chi-Square test been performed to observe the difference between men and women.
    Results: After the calculation, result showed that there’s a significant difference between men and women: upper lips length while rest and smile was longer on men compared to women (p<0.05), clinical crown height on central incisor on men was 0.7 mm longer than woman (p<0.05). The type of smile distribution on dental students of University of Sumatera Utara was average smile (54.3%), low smile (30.0%) and high smile (15.7%). There was a significant different between men and women smile type (p<0.05). The comparison between men and women on high smile was 1:3 and low smile was 2:1. Conclusion: The findings of this research showed that the most common smile type on dental students of University of Sumatera Utara was average smile, while women tends to have average and high smile and men tends to have average and low smile.
Dr. Mashael Fudah, Saudi Arabia
Dr. Mashael Fudah, Saudi Arabia
  • Show CV
    Dr Mashael graduated from the Saudi Board of Periodontics in 2016. She has received herBachelor of Dental Medicine and Surgery (BDS), King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia in 2010. Dr Mashael is an Affiliated member of the SRG “Student Research Group” at KAU and a member in the administrative committee and the public relation committee in the educational dental health project called “iTeeth”. She has also volunteered in the website for education and public health called “Ask A Doctor”.
  • Poster Presentation: Lip Repositioning: An Alternative to Invasive Surgery-A 3 Year Follow up. Case Report
    Excessive Gingival Display (EGD) is a multifactorial condition that needs to be managed in a sequential manner in order to reach the proper treatment technique that targets and resolves the underlying etiologies. An innovative procedure called lip repositioning has been introduced and used recently either alone or in combination with other techniques. It can be used in certain cases as an easier, less complicated alternative to major surgical methods providing a pleasant satisfactory camouflage effect with lower morbidity. A case report is presented to show the preparatory and surgical steps used to treat a 25 years old patient with EGD using lip repositioning technique as an alternative to invasive surgery with satisfactory results that has been stable for 3 years.
Dr. Dalia Hisham Kokash, Jordan
Dr. Dalia Hisham Kokash, Jordan
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    Dr Dalia has graduated with a Doctor Degree of Dental Medicine (DMD) from Gulf Medical University (GMU) in UAE in November 2017, and currently doing her internship in Thumbay medical groups on rotations between Sharjah & Ajman, and while her internship she is working on few researches herself. She is also a member of Gulf Dental Students & Young Dentists Association (GDSA). Dr Dalia’s career objective is to start a career with a well-known hospital / clinic where She could serve people and grow with the organization.
  • Poster Presentation: Cephalometric Analysis in an Inherited Congenital Hypodontia with Different Expression Pattern within the Siblings of an Iraqi Family
    Hypodontia or tooth agenesis is the most common developmental tooth anomaly in humans. Hypodontia is the term commonly used to describe the condition in which teeth congenitally fail to develop. The aim of the study is to identify the genetic cause and compare the skeletal and dental Cephalometric parameters among affected and unaffected Iraqi siblings in the same family with congenital hypodontia. Methods: The family pedigree was drown showing autosomal recessive form of inheritance, saliva sample was collected, and genetic test was done commercially. Analysis of the clinical data including OPG and Cephalometric was done at our Thumbay Hospital in Ajman. Results: The result of the genetic test showed a known mutation in the transcription factor MSX1 gene using next generation of sequencing. Dental, skeletal and facial growth analysis in the individual with congenital hypodontia showed Class II skeletal abnormalities, Retrusion of mandibular Incisor, Increased over jet & Overbite. In addition to that, the affected individuals showed Horizontal facial growth pattern, markedly decrease Lower Anterior Facial Height [LAFH] and markedly decreased length of the mandible compared to normal sibling of the same family. Conclusion: our result illustrated a strong correlation between normal dental, skeletal and facial growth pattern with the number of the teeth fail to develop in congenital hypodontia.
Dr. Suzana Al Qatawneh, Hungary/Jordan
Dr. Suzana Al Qatawneh, Hungary/Jordan
  • Show CV
    Dr Suzana is 5th-year Dental Student Professional Diploma in Advanced Laser Dentistry at the Gulf Medical University, Sharjah, UAE.
  • Poster Presentation: A Multidisciplinary Full Mouth Rehabilitation
    A 19-year-old patient presented with symptoms of Pain with past history of wrong diagnosis and subsequently incorrect treatment. Upon further clinical investigation, the correct diagnosis has been done to identify the main cause of pain. Emergency measures were done to relieve the patient’s pain and a proper treatment plan was established including periodontal treatment, Endodontic treatment for multiple teeth and Extraction of remaining roots. For restoring the patient’s oral esthetic and function, multiple reconstructive procedures have been done including post and core, crowns, bridges, and veneers. The patient was highly pleased and appreciative of the results of the Final Outcome.
Dr. Sidra Zafarullah, Pakistan
Dr. Sidra Zafarullah, Pakistan
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    Dr. Sidra is a young enthusiastic dentistry student who is coming to the end of 5th year at the Gulf Medical University.
  • Poster Presentation: A Multidisciplinary Full Mouth Rehabilitation
    A 19-year-old patient presented with symptoms of Pain with past history of wrong diagnosis and subsequently incorrect treatment. Upon further clinical investigation, the correct diagnosis has been done to identify the main cause of pain. Emergency measures were done to relieve the patient’s pain and a proper treatment plan was established including periodontal treatment, Endodontic treatment for multiple teeth and Extraction of remaining roots. For restoring the patient’s oral esthetic and function, multiple reconstructive procedures have been done including post and core, crowns, bridges, and veneers. The patient was highly pleased and appreciative of the results of the Final Outcome.
Dr. Aseel Marie, Jordan
Dr. Aseel Marie, Jordan
  • Show CV
    Dr. Aseel is 5th-year dental student Professional Diploma in Advanced Laser Dentistry at the Gulf Medical University, Sharjah, UAE.
  • Poster Presentation: A Multidisciplinary Full Mouth Rehabilitation
    A 19-year-old patient presented with symptoms of Pain with past history of wrong diagnosis and subsequently incorrect treatment. Upon further clinical investigation, the correct diagnosis has been done to identify the main cause of pain. Emergency measures were done to relieve the patient’s pain and a proper treatment plan was established including periodontal treatment, Endodontic treatment for multiple teeth and Extraction of remaining roots. For restoring the patient’s oral esthetic and function, multiple reconstructive procedures have been done including post and core, crowns, bridges, and veneers. The patient was highly pleased and appreciative of the results of the Final Outcome.
Dr. Baher Tarik, Pakistan
Dr. Baher Tarik, Pakistan
  • Show CV
    Currently Dr Baher is working as a House Officer at University College of Dentistry Lahore, Pakistan and is a Dentist at Dental Habitat Clinic Lahore, Pakistan.
  • Poster Presentation: Understanding the Importance of Laboratory Authorisation Form
    Abstract: For the success of prosthodontic treatment there should be a healthy communication between the dentist and laboratory technician. The ideal communication exists when the lab technician will see the patient through the eyes of the dentist which will be possible with the help of lab authorisation form. Which is a legal permit from the dentist to the lab technician which consists of the hand-written instructions that is of material to be used, the texture, type of prosthesis and so on.
    Aims and Objectives: The aim of the study was the Perception of communication of a house officer and laboratory technician. The main objective was to identify and analyse the technical requirements of the points of communication. Method A survey was conducted in order to figure out predominant points a dentist consider while conveying the information to the lab technician.For this purpose 100 house officers were selected 10 each from the 10 different dental colleges of the Punjab that are (University college of dentistry Lahore, Fatima memorial college Lahore, Lahore medical and dental college , Sharif medical college Lahore, combined military medical college, de mont dental college , rashid lateef dental college Lahore , Nishtar medical college multan , faisalabad medical college , wah medical college). A questionare containing 6 points from removable and 6 points from fixed partial denture were given to the house officers. An average was calculated of the house officers utilising these forms and the results were surprising. Results The survey reveals the use of laboratory authorisation form in these hospitals was not up to the mark it was below average and the house surgeons were unable to communicate about the fixed and removable prosthesis important questions.
Dr. Baher Tarik, Pakistan
Dr. Rabea Basri, Saudi Arabia
  • Show CV
    Dr. Rabea is a dental intern at the Riyadh Elm University, Saudi Arabia.
  • Poster Presentation: Dental Photography as a Method of Documentation in Saudi Arabia
    Aim: To determine the application of dental photography throughout Saudi Arabia in the daily clinical practice by the dental healthcare professionals. To evaluate its application in the academic clinic, its benefit in the patients’ documentation and also to evaluate the risk of infection control. Materials and Methods: The survey was conducted in hard and soft copies with selfadministered 20 closed question questionnaires, an optimal sample size was approximated at 383 and 596 responses were collected. The survey was widely distributed in both the government as well as private sector. The data were analyzed through IBM SPSS (Statistical Package for Social Sciences) Statistics Windows version 22 Findings: From the online survey, 133 responses were included for analysis and from the hardcopy distribution; a respectable 463 questionnaires were included from an original 600. The mean age of respondents was 24.72 years (range 20-56), and females more than males (81.7% versus 18.1%). Majority of respondents were in the private sector as opposed to government (79.5% versus 19%) and more dental students responded than dentists (84.9% versus 15.1%). Conclusion: Time was the main issue for lack of taking photographs since majority of the respondents were dental students having multitude of assignments, requirements and Time is therefore a critical factor which played a major role in their hesitation to document their cases photographically. Last but not least, lacking an assigned personal dental assistants encourages dental students to use their mobile cameras and take verbal consent over written consent when dealing with their patients who aren’t intimidated by the bulkiness of any heavy object like DSLR cameras
Dr. Omar Ghulam, Saudi Arabia
Dr. Omar Ghulam, Saudi Arabia
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    Dr. Omar received his Bachelor's Degree of Oral and Dental Medicine and Surgery from Faculty of Oral and Dental Medicine from Cairo University in May 2013. He has completed a medical training in departments of Orthodontic, Removable Prosthodontics, X-Ray, Pedodontic & Oral Hygiene, Oral Medicine, Periodontology & Oral Diagnosis, Fixed Prosthodontics, Oral Surgery and Endodontics.
  • Poster Presentation: Oral Hygiene Practice and its Relation with Stress Among the Adult
    Stress is increasing day by day in everyone's life and in long term it contribute in development of oral diseases.
    Methods: It was a hospital based cross sectional study. Total 511 patient were included in the study. Pretested questionnaire was used included socio-demographic status, oral health practice. Stress was measured by using modified dental anxiety stress scale from never to severe stress. Three questions were reversed due to positive answer. Total score of stress was calculated by combining each score of every question. Total score is divided into three scale, low stress (0-14), moderate stress (15-30) and severe stress (31- 45). Statistical analysis was performed by (SPSS) version 21, P < 0.05 is set to be significant. Results: Among 511 patients 258 were male and 253 female. Females (65%) were having severe stress as compared to males (35%) and there was no significant relation with gender (P = 0.170). Youngers (20-30 years) were under high stress (52%). Majority of severe stressors were smokers (P< 0.000) and 68% of severe stressors were having bleeding gum (P = 0.009). Thirty nine percent of severe stress participants were cleaning their teeth only occasionally (P = 0.044) and among them 13% never cleaned their teeth (P <0.000). Regarding brushing of teeth maximum number of participants from all level of stress were using brush and toothpaste. Only 10% of severe stressors used nothing to clean interdental space (P = 0.469). Conclusion: Female and youngers had severe stress. Among them more than fifty percent were smoker and having bleeding gum.
Prof. Dr. Liliana Porojan, Romania
Prof. Dr. Liliana Porojan, Romania
  • Show CV
    Liliana Professor at the Victor Babeș University of Medicine and Pharmacy Timisoara, Faculty of Dentistry, Specialization Dental Technology, Department of Dental Prostheses Technology, PhD in dentistry, Primary dentist in General Dentistry specialty, Specialist in the specialty of Orthodontics and Dental-Facial Orthopedics, Specialist in specialty Dental Prosthodontics. The areas of research are focused on: three-dimensional reconstructions of dental structures and prosthetic restorations, three-dimensional modeling, computer aided design in the field of dental prosthodontics, numerical simulations (finite element analysis) in fixed prosthodontics, removable and combined restorations, design optimization, modern welding procedures of dental alloys in shielding gas, structural aspects of base metal alloys, design concepts of removable partial dentures, attachments used in combined prosthetic restorations, ceramic systems used in dental technology, CAD / CAM systems used in dental technology. They were evidenced by coordination of 6 research projects in this areas of interest. The dissemination of research results was done by: 18 published books, 170 scientific papers published in extenso, 235 papers presented at scientific meetings, 110 participation in conferences and symposia, 33 courses and training programs.
  • Poster Presentation: Mechanical behavior of metal-ceramic crowns related to the manufacturing procedure of the framework
    Abstract: Metal-ceramic crowns provide a very durable prosthetic reconstruction, especially in the posterior region, with a low annual failure rate, compared to all-ceramic restorations. Therefore, they are still regarded as the gold standard. In this regard, dental manufacturers still develop new materials. The potential for fabricating metallic dental components directly from digital data using alternative technologies is a topic of ongoing interest. Purpose: The objective of the study was to assess the fracture behavior of metal-ceramic molar crowns obtained with aomputer aided manufacturing methods related to classical manufacturing procedures of the metallic frameworks. Materials and methods: For the experimental analyses metal-ceramic molar crowns were prepared using alternative technologies for the frameworks: traditional casting (CST), computerized milling (MIL), selective laser sintering (SLS) and selective laser melting (SLM). These were veneered with specific hot-pressed ceramics. Crowns were cemented on duplicated composite dies and tested under compressive load to fracture. Results: Maximal compressive loads were registered, and there were no statistical differences between the mean values of the loads (p>0.05). The mean registered values were 2158.66 ± 199.88 N. Higher variations between the samples were registered for those with frameworks obtained by additive manufacturing methods. Conclusion: The mechanical behavior of metal-ceramic crowns is important from clinical point of view and should also be related to the structural and morphological characteristics of the frameworks resulted after various manufacturing procedures. (This work was supported by a grant of the Romanian National Authority for Scientific Research and Innovation CNCS-UEFISCDI, project number PN-II-RU-TE-2014-4-0476)
Dr. Omar Hussein Hallak, Lebanon
Dr. Omar Hussein Hallak, Lebanon
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    Dr. Omar is an Orthodontist and Facial Orthopedist. He has received his Bachelors Degree in Odontology in 2000 at University of Cuiaba, Brazil. Dr. Omar followed several Specialization Courses in Orthodontics between 2002 – 2015 in Brazil. He is the Member of Brazilian Dental Association as Dentist since 2000 and registered as Specialist in Orthodontics and Facial Orthopedics as of 2005, Member of ADA (American Dental Association) since 2011, Member of AOS (American Orthodontics Society) since 2014 and also Member of LDA (Lebanese Dental Association) since 2014 registered as Specialist in Orthodontics and Facial Orthopedics. Dr. Omar is the owner of Orthodontics and Facial Orhtopedics clinic in Lebanon since 2012.
  • Poster Presentation: Orthodontic-Surgical Treatment of a Class II Malocclusion
    Abstract: With the interrelation of Orthodontics and Orthognathic Surgery, the arsenal of orthodontic specialty is complete and the patient's complaints and anxieties, which could not be solved only with orthodontics, now find plausible solutions. In addition to the use of bone base manipulation in the sagittal, transverse and vertical senses, aesthetics can be taken into account in all its parameters and not restricted to the effects of tooth movement on the face soft tissues. This clinical case report demonstrates, in a succinct way, the phases of an orthodontic surgical treatment of an Angle Class II malocclusion case with facial deformities (Mandibular Retrognathia + Maxillary Rotation and Maxillary Prognathia). The correct elaboration of the diagnosis made it possible to plan and carry out an appropriate interdisciplinary treatment which achieved the patient's main complaint, his anti-aesthetic facial profile.
Dr. Aiman Khan, Pakistan
Dr. Aiman Khan, Pakistan
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    Dr Aiman Khan M.Phil - Science of Dental Materials Assistant Professor Science of Dental Materials Khyber College of Dentistry
  • Poster Presentation: Are Dentists Aware Enough of Biomedical Waste Management?
    Aims and Objective: This study was conducted to decide the wakefulness in regards to biomedical (BM) waste management policy & practices and awareness regarding needle-stick injury among dentists of four different dental hospitals in Peshawar, Pakistan. Material and Methods: A cross-sectional KAP study was conducted from December 2016 to March 2017 in four Dental hospitals of Peshawar, using a survey form with closed-ended questions. It was circulated among dental practitioners (having clinical experience of more than two years) through convenience sampling. The questionnaire was utilized to survey their insight into the biomedical medicinal waste transfer and needlestick injuries. Each questionnaire was scored and graded as the excellent, good or poor level of knowledge for each participant. Results: Of the 150 survey forms, 130 were returned and the appropriate responses were reviewed. The outcomes demonstrated that there was a decent level of learning and familiarity with biomedical waste generation hazards, management, and needlestick injuries. Poor level of knowledge on BM waste management practice was found. Nobody had a great level of awareness about biomedical waste management. Conclusion: The study concluded that there in spite having good attitude and knowledge about BM waste management, practices are poor among dentists working in different hospitals of Peshawar, Pakistan.
Dr. Adrian Mihai Varvara, Romania
Dr. Adrian Mihai Varvara, Romania
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    Dr. Varvara Adrian Mihai has graduated in 2011 from University of Medicine and Pharmacy “Iuliu Hatieganu” Cluj Napoca, Romania. He obtained his specialist title in Endodontics in 2014, and the competence in Dental Implantology in 2015. From october 2015 he is a PhD student at the same university. Dr. Varvara is currently assistant professor at Dental Propedeutics and Esthetics discipline, Prosthodontic Dentistry and Dental Materials Departmentat, Faculty of Dentistry, University of Medicine and Pharmacy - Cluj-Napoca, and he works in a private clinic as well. He is interested in areas such as: CAD CAM technics and materials, 3D printing, Digital dentistry, Dental photography and Esthetics rehabilitation.
  • Poster Presentation: Fiber glass reinforced composite for CAD CAM
    Abstract: Fiber glass reinforced composite for CAD CAM Authors: Adrian Mihai Varvara1, Elena Bianca Varvara1, Cristina Gasparik1, Valentin Toma2, Cristina Prejmerean3, Bogdan Culic1 Authors’ affiliations: 1 Department of Prosthetic and Dental Materials, Faculty of Dental Medicine, University of Medicine and Pharmacy "Iuliu Hațieganu" Cluj Napoca, Romania 2 Research Center for Advanced Medicine MedFUTURE, University of Medicine and Pharmacy "Iuliu Hațieganu" Cluj Napoca, Romania 3 Institute of Research in Chemistry “Raluca Ripan”, Babes- Bolyai University, Cluj Napoca, Romania Introduction. In the last three decades, exciting new developments in dental materials and computer science have led to the success of contemporary dental computer-aided design - computer-aided manufacturing (CAD-CAM) technology. Each year, new materials appear with improved properties and qualities. The objective of the work was to develop a new cad cam milling material using fiber glass reinforced composite. Materials and method. A selection of 2 different types of resins (R1 composed from 25%Bis-GMA, 40%UEDMA, 35% DMTEG and R2 composed from 65%Bis-GMA, 35% DMTEG) with 2 different types of hybrid filler (F1 with 42% quartz, 42% radiopaque glass and 16 % hydroxyapatite and F2 with 90% quartz and 10% colloidal silica) and 3 different types of E type fiber glass geometries (veil 30g/m2, twill 163g/m2 and textile 300g/m2) in 4, 6, 8 and 10 layers were used in this in vitro study. Inside of a silicon cube of 1 cm side, layers of resin and fiber glass were placed one above another. After each layer a light curing process of 10 seconds was done in 5 different points. 2 mm thick samples were cut with a precision saw (Isomet 1000, Buehler, USA) and investigated with SEM and Raman spectroscopy. Data were analyzed with dedicated software. Results. Raman analysis, showed a powerful interaction between the polymer and the fiber glass. SEM data revealed that the different fiber glass geometries were well incorporated inside the resin, resulting an acceptable homogeneity. Conclusions. Within the limitation of this study, it seems that it is possible to achieve a fiber glass reinforced composite for the use of CAD CAM technology. Further investigation must be done in order to test all the properties of the new material. Key words: CAD CAM, composite, fiber glass Acknowledgement: This work was supported by the Romanian National Authority for Scientific Research and innovation, UEFISCDI, project PN-III-P2-2.1-PED-2016-1936
Dr. Rabab Al-Tuwairqi, Saudi Arabia
Dr. Rabab Al-Tuwairqi, Saudi Arabia
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    Dr. Altuwairqi is a consultant Orthodontist; she is working at King Saud Medical City in Riyadh, Saudi Arabia. Her practice is mainly dedicated to Orthognathic & interdisciplinary orthodontics. She has participated in numerous conferences & dental symposiums. She has participated in several clinical awards. She got the first-place winner in The Scientific Dental Board Meeting in Riyadh, Saudi Arabia.
  • Poster Presentation: Esthetic smile design an interdisciplinary approach
    Abstract: Interdisciplinary collaboration is widely recognized and considered essential for optimizing the development of knowledge and practice in the dental field. This case report describes the comprehensive treatment of a patient who needs an interdisciplinary management. A 12 years old, female who presented with the chief compliant of “unpleasant smile” due to peg-shaped lateral incisor or mesiodistally deficient lateral incisor. An interdisciplinary approach was employed to meet the patient esthetic demand through orthodontics, esthetic dentistry & periodontics. The malocclusion has been addressed successfully & the treatment objectives accomplished with high patient satisfaction. In conclusion the interdisciplinary teamwork is an important model for delivering optimal health care to the dental patients.
Dr. Mai El Najjar, Canada
Dr. Mai El Najjar, Canada
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    Dr. Mai is a Master of Engineering Sciences student in Biomaterials interesting 3D printing for the crown and bridges for dental manufactures research area at the University of Western Ontario.
  • Poster Presentation: Advanced 3D Metal Additive Manufacturing for Dental Substructures
    Background: Additive Manufacturing (AM) in dentistry has received much attention as Computer-Aided Design and Manufacturing (CAD/CAM) is actively being used to produce fixed dental restorations. Potential benefits of AM mass production of substructures readily printed from digital files, reduced material waste due to the additive process, and ability to replicate intricate features needed for patient-specific restorations. However, in-depth analyses are required to validate AM’s routine use in dental manufacturing. Objective: To evaluate material properties, mechanical integrity, and geometric accuracy of cobalt chromium (CoCr) dental substructures made using AM and conventional methods. Methods: CoCr test bars and 3-unit dental substructures were additively manufactured by selective laser melting technology (ADEISS), and conventional methods of milling and casting (Rotsaert Dental Laboratory). Test bars were designed using ASTM E290, and underwent bend testing. Additional testing to be performed on test bars include microstructural analysis, hardness and porcelain adherence. Along with the test bars, 3-unit bridge substructures will undergo in vitro testing to determine their flexural strength and fatigue life. Thus far, the 3-unit bridge substructures have been scanned using high energy and resolution micro-CT imaging (Nikon Micro-CT Scanner XTH 225 ST) to evaluate porosities within the bridge substructures and quantify geometric accuracy, prior to mechanical testing. Preliminary Results: AM test bars exhibited significantly greater flexural strength, compared to cast and milled bars (p < 0.05). However, no significant difference was found in alloy stiffness (p > 0.05). Additionally, micro-CT scans of the 3-unit bridge substructures revealed greater porosity within cast, versus AM and milled samples. Conclusion: This study will provide important data to critically assess AM technology for routine fabrication of dental substructures. Such information will be essential for future adoption of AM in the Canadian dental manufacturing sector. References: 1. Azari A, Nikzad S. Rapid Prototyp J. 2009;15(3):216-225.
Dr. Saud Murshed Al-Harbi, Saudi Arabia
Dr. Saud Murshed Al-Harbi, Saudi Arabia
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    Dr. Saud is a GP at the Prince Sultan Military Medical City in Saudi Arabia. He studies the Military Field Medicine program between November 2015 – March 2016. He received his bachelor degree in Dental Surgery at the King Saud University, Riyadh, Saudi Arabia in 2013.
  • Poster Presentation: Effect of Finish-line Designs on the Fit of 3D-printed Restorations
    Purpose: To evaluate the influence of fabrication method and finish line design on marginal and internal fit of full-coverage interim restorations. Methods: Four typodont models of maxillary central-incisor were prepared for full-coverage restorations. Four groups were defined; knife-edge (KE), chamfer (C), rounded-shoulder (RS), rounded-shoulder with bevel (RSB). All preparations were digitally scanned. A total of 80 restorations were fabricated; 20 per group (SLA/3D-printed n = 10, milled n = 10). All restorations were positioned on the master die and scanned using micro-computed tomography. The mean gaps were measured digitally (ImageJ). The results were compared using MANOVA ( = .05). Results: Internal and marginal gaps were significantly influenced by fabrication method (P = .000) and finish-line design (P = .000). 3D-Printed restorations showed statistically significant lower mean gap compared to milled restorations at all points (P = .000). The mean internal gap for 3D-printed restorations were 66, 149, 130, 95 mm and for milled restorations were 89, 177, 185, 154 mm for KE, C, RS, RSB respectively. The mean absolute marginal discrepancy in 3D-printed restorations were (30, 41, 30, 28 mm) and in milled restorations were (56, 54, 52, 38 mm) for KE, C, RS, RSB respectively. Conclusions: The fabrication methods showed more of an influence on the fit compared to the effect of the finish-line design in both milled and printed restorations. SLA-printed interim restorations exhibit lower marginal and internal gap than milled restorations. Nonetheless, for both techniques, all values were within the reported values for CAD/CAM restorations. Significance: 3D-printing can offer an alternative fabrication method comparable to those of milled restorations.
Dr. Hiba Jarad, Syrian
Dr. Hiba Jarad, Syrian
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    Dr. Hiba is A-level student with an excellent education record. She is studying at the Ras al-Khaimah Medical and Health Sciences University, UAE.
  • Poster Presentation: Reliability and Accuracy of Vita EASYSHADE in determining the color of Pre/ Polymerized Composite Shade Tabs.
    Abstract: In esthetic dental practice we face situations were composite resin restorations need to be maintained or replaced due to fracture, gap or marginal disintegration. This might require the use of a new restorative composite resin that has the same shade of the old filling. Currently, tools to reliably evaluate teeth shade are available such as Vita EasyShade; however, detecting the shade of composite resin is not a popular procedure among dental practitioners despite the claim of Vita EasyShade manufacturer of its ability to assess the shade of restorative materials. The purpose of this study is to Determine the Reliability and Accuracy of Vita EASYSHADE in determining the color of Pre/ Polymerized Composite Shade Tabs using the shade samples (A1, A2,A3,B1,B2,B3,C1,C2 and C3 ) of four different brands of resin composites 108 cylinder were prepared (3 plates for each shade color and brand of composite material). A colorimetric evaluation, using white background, was performed just after preparation. The color was measured using a Vita EasyShade advance 4.0. The results showed that Value, Chroma and Hue often differ even if the same commercial color and same thickness is used. In conclusion, this study showed that the perfect aesthetics restoration is possible combining individual abilities, experience and correct techniques.
Dr. Yousuf Al Zaki, Iraq
Dr. Yousuf Al Zaki, Iraq
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    Studied dentistry at Ras al-Khaimah Medical and Health Sciences University, Dental School from 2013-2018. Junior freelance programmer.
  • Poster Presentation: Reliability and Accuracy of Vita EASYSHADE in determining the color of Pre/ Polymerized Composite Shade Tabs.
    Abstract: In esthetic dental practice we face situations were composite resin restorations need to be maintained or replaced due to fracture, gap or marginal disintegration. This might require the use of a new restorative composite resin that has the same shade of the old filling. Currently, tools to reliably evaluate teeth shade are available such as Vita EasyShade; however, detecting the shade of composite resin is not a popular procedure among dental practitioners despite the claim of Vita EasyShade manufacturer of its ability to assess the shade of restorative materials. The purpose of this study is to Determine the Reliability and Accuracy of Vita EASYSHADE in determining the color of Pre/ Polymerized Composite Shade Tabs using the shade samples (A1, A2,A3,B1,B2,B3,C1,C2 and C3 ) of four different brands of resin composites 108 cylinder were prepared (3 plates for each shade color and brand of composite material). A colorimetric evaluation, using white background, was performed just after preparation. The color was measured using a Vita EasyShade advance 4.0. The results showed that Value, Chroma and Hue often differ even if the same commercial color and same thickness is used. In conclusion, this study showed that the perfect aesthetics restoration is possible combining individual abilities, experience and correct techniques.
Dr. Rahma Omar, Somalia
Dr. Rahma Omar, Somalia
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    Dr. Rahma graduated her Bachelor of Dental Surgery (BDS) September 2010-June 2015 RAK Medical & Health Sciences University RAKMHSU. She is ambitious and highly qualified Dentist with excellent organizational and interpersonal skills, keen to secure a position with a dynamic and progressive dental practice.
  • Poster Presentation: Dentist role in early detection of osteoporosis.
    Abstract: The purpose of this literature review was to evaluate the means of osteoporosis diagnosis such as, radiographs, biochemical bone markers investigation. As well as osteoporosis correlation with both systemic and local diseases and dentists role in early detection of osteoporosis. Methodology The study was a retrospective cross sectional, review of literature, comparative study involving postmenopausal women ranging from the age 45-65 years old. With the use of electronic(pubmed) and hand searching methods (journals and books) who's titles included the terms; digital panoramic radiographs, dental cone beam computed tomography, biochemical bone markers, local and systemic diseases, such as periodontitis, bisphophonate-related osteonecrosis of the jaw, myasthenia gravis, type-II diabetes mellitus and their association with osteoporosis were all included. The reported data included baseline characteristics of the study population (age, comorbidities, history of fractures, Body Mass Density, Body Mass Index,height and weight) and clinical features of osteoporosis( mandibular, femoral and lumbar vertebrae bone loss). Results Fractures induced by osteoporosis in postmenopausal women could be detected in its early stages by well trained dentists on radiomorphometric indices, and prevented, though further referral to a physician would be necessary. Conclusion Age >or=45 years, female sex, and patients under corticosteroids treatments were the most common characteristics of those who developed osteoporosis. Dentists usage of a computer software program with digitally produced panoramic dental radiographs supplemented by a few clinical questions, can detect those who are at high risk of developing osteoporosis, therefore, facilitating onward referral to medical colleagues.
Dr. Abdulmohsin Alalawi, Oman
Dr. Abdulmohsin Alalawi, Oman
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    Dr. Abdulmohsin graduated his Bachelor of Dental Surgery (BDS) 2007-2013 at the Oman Dental College.
  • Poster Presentation: A case of large radicular cyst
    History: 19 years old or attended with mild swelling. Examination: swelling extended from maxillary central incisor to second premolar. Upper left central and lateral teeth were proclined. investigation:non- vital teeth 21,22 and 23 according to vitality test . radiograph showed radiolucency area at the second quadrant. Cystic fluid collected by needle aspiration. Treatment: enucleation had been done, cystic lesion removed under local anesthesia. follow up treatment has done after 5 years and there are no symptoms and other healthy.
Dr. Amal Alharbi, Saudi Arabia
Dr. Amal Alharbi, Saudi Arabia
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    Dr. Amal Alharbi graduated in 2002 from College of Dentistry, King Saud University. Between 2003- 2008 she was a Resident dentist at Al-Nakheel Medical Centre, Medical Services, Riyadh, KSA. In 2011 she completed her 3 years clinical training in conservative restorative dentistry with Master degree of advanced study in oral biology from Geneva University. In 2014 she obtained the Swiss board certificate in preventive restorative dentistry from Switzerland. During the same year she was awarded the Master degree in Micro invasive Aesthetic dentistry from Geneva University . In 2016 she obtained her Doctorate in Medical sciences “MD-PhD” from University of Geneva. She participated in several national and international Dental meetings. Currently she works as a specialist dentist at the Al-Nakheel Medical Centre, Medical Services, Riyadh, KSA.
  • Poster Presentation: Wear resistance of selected CAD/CAM materials using different wear measurement methods
    Purpose: To evaluate the wear resistance of resin based CAD/CAM materials in respect to ceramic, by the use of three measuring methods. Methods: 10 discs-shaped specimens were fabricated from each of the following materials: VITABLOCS Mark II (control); Paradigm MZ100; Exp Kerr; VITA ENAMIC (VE) and LAVA Ultimate (LU). In vitro two-body wear analysis was performed after thermo mechanical loading in a chewing simulator. To this purpose, the specimens were mechanically loaded for 200,000 cycles of 49 N each, at a frequency of 1.7 Hz. A total of 500 thermal cycles of 5 °C to 50 °C to 5°C were performed simultaneously. The two-body wear resistance was calculated by measuring the maximum depth of material loss after loading, using three different measuring devices: 3D LAVA Scanner, mechanical stylus and a profilometer. Results: There was a statistical significant difference between materials (p < 0.001) when profilometer and mechanical stylus were used. Vita Mark II showed the least wear. The new resin materials (LU and VE) showed a similar wear behavior to MZ100. 3D LAVA scanner didn’t detect any statistical significant difference in wear between the tested materials. Conclusion: Within the limitation of this in-vitro study, when using Profilometer and Mechanical stylus, resin based CAD/CAM blocks showed an inferior wear resistance in respect to feldspathic ceramic blocks (Vita Mark II). 3D lava scanner was not able to detect small differences in wear.
Dr. Sunita Singh, India
Dr. Sunita Singh, India
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    Dr. Sunita Singh, post graduate (MDS) in orthodontics is a board-certified orthodontist and cosmetic dentist. She has vast clinical experience of 13 years in orthodontics and cosmetic dental procedures. Further she has taken lot of continuing education in cosmetic dentistry, fixed orthodontics, and Invisalign aligners at Various centres of India, USA, and Australia. She has attended many national and international dental conferences to upgrade her knowledge in cosmetic dentistry and fixed orthodontics. she recieved best presentation award 18th ISOI conference 2011 held in Hyderabad for her work on orthodontic implants.
  • Poster Presentation: Smile makeover by Self Ligating Brackets and cad cam prosthesis.
    Objectives: The objective of this study was to achieve aesthetically acceptable smile of malaligned teeth with abnormal shape and sizes. Many patients reach in our practice where only orthodontic alignment of malposed teeth doesn't suffice to achieve the desired aesthetic outcome due to unnatural shape and sizes of the teeth which can't be corrected with only orthodontic treatment. Many of such cases, after finishing orthodontic alignment, need smile make over using cad cam veneers or caps to achieve desired aesthetic results.

    Materials and methods: After model analysis and ct planing of such cases, first orthodontic treatment was done using self ligating brackets to correct malalignement, rotation and spacing to the desired level. After finishing orthodontic treatment, shape and size of teeth and spacing was corrected using zirconium caps or veneers to achieve desired aesthetics for the patients.

    Results: Most of the patients who came with malaligned teeth along with undesired shapes and sizes of their teeth could not be satisfied with their look after successful alignment of their malaligned teeth as the shape and size of the teeth can't be corrected by orthodontic treatment so most of the such patients required cad cam caps or veneers after orthodontic treatment to achieved desired level of aesthetic outcome.

    Conclusions: CAD/CAM assisted aesthetic metal free prosthesis (crowns/ veneers) are the good and long lasting option for the few orthodontic cases to achieve desired level of aesthetic outcome for such patient

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