School of Dentistry

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Tabriz Faculty of Dentistry is located in Tabriz, capital city of East Azarbayjan Province and is the only dental schoolwestern Iran. Tabriz Dental School was founded in 1986. The first students entered in 1987, graduating in 1993. In 1997 the school moved into a new and modern building, covering 22,000 square meters. The school expanded its educational programs in 2001 by offering its postgraduate specialty courses in three fields and at present it offers seven postgraduate specialty courses. Prospects for the Future We are determined, by asking for assistance from the Almighty, to promote the school's academic excellence, raise the standards of oral health in the community and join the circle of highly qualified dental schools in the country through optimizing instruction standards and innovative research programs. Mission Tabriz Faculty of Dentistry as the only dental school in the north-western Iran and as a part of a major university has combined and enjoyed the endeavors of competent and qualified academic staff with appropriate facilities and has committed itself to: Training highly qualified general practitioners and specialists; Updating the knowledge and skill of the graduates working in the north-western Iran;

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    Effect of wax contamination on the deformation of abutment screw head after repeated opening and closing
    (Tabriz university of medical sciences, faculty of dentistry, 2024) Rezapour, Nima; Ghaffari, Tahereh; Dental Prosthesis; Nourizadeh, Amin
    Introduction: This study aims to examine how the presence of wax affects the wear and deformation of abutment screw heads when subjected to repeated opening and closing cycles. Materials and Methods: Eighteen fixtures and abutments from the Chaorum system were used, divided into three groups: a control group without wax contamination, a group with wax contamination cleaned with a dental probe, and a group with wax contamination followed by steam cleaning. The samples underwent five cycles of opening and closing with a torque of 15 Ncm. The wear and deformation of the screw heads were analyzed using AutoCAD software, measuring the perimeter, area, and angles. Statistical methods, including repeated-measures ANOVA, Mauchly test, Bonferroni test, and t-tests, were employed for data analysis. Results: Results showed significant increases in the perimeter, area, and angle of the screw heads after repeated cycles of opening and closing in both the wax-contaminated groups and the control group. The group cleaned with a dental probe exhibited significantly higher increases in perimeter and area changes compared to the control group. However, there was no significant difference between the group cleaned with steam and the control group in terms of perimeter and area changes. Both the dental probe group and the steam group showed significantly higher increases in angle changes compared to the control group, with the dental probe group displaying greater changes than the steam group. Conclusion: wax contamination during screw tightening can lead to wear and deformation of abutment screw heads. It is crucial to apply torque properly to prevent complications such as screw loosening and breakage. This study highlights the importance of optimizing laboratory work and clinical protocols to address the impact of wax contamination on screw head wear and deformation. Understanding these mechanisms can improve the long-term success of dental implant treatments. Further research is needed to develop preventive measures and techniques to mitigate the effects of wax contamination and enhance the stability and reliability of implant and abutment connections.
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    Evaluating the effect of extracorporeal shockwave therapy on rapid Osseointegration of titanium implants in rabbit femur
    (Tabriz University of Medical Sciences, Faculty of Dentistry, 2022) Jafarpour Mahalleh, Amir; Soltani, Abbas; Rezaei, Yashar; Jarolmasjed, Hosein; Khordadmehr, Monireh; Oral surgery; Mesgarzadeh, Ali Hosein
    Introduction: As the demand for dental implants is growing exponentially, new methods are developing to increase the success rate of implants. A rapid and appropriate integration of implant-bone interface plays an inevitably important role in success rate of dental implants. As Extracorporeal Shock Wave Therapy (ESWT) is believed to have osteogenic effects, we hypothesized that using ESWT as an adjuvant treatment would accelerate osseointegration of titanium dental implants. Material and methods: In this study we inserted 18 titanium mini-screws in 9 New Zealand rabbit’s femur bone, and divided screws in three groups; one-time treated screws, three-time treated screws and the control group. one-time treated screws underwent shockwave therapy once, three-time treated screws underwent shockwave therapy thrice, and the control group was left to heal naturally. We used 1800 focused shockwaves with an energy flux density of 0.3mJ/mm2 in every phase. 14 days after the last phase of ESWT, animals were sacrificed to assess the osseointegration of screws via Micro-CT scan, biomechanical pull-out test, and histopathological analysis. Result: Pull-out and histopathology analysis showed that ESWT significantly increased bone regeneration and osseointegration of implants, this was more severe and significant in three-time treated screws. However, Micro-CT results wasn’t statistically significant in favor of our hypothesis, and we believe it was due to improper methodology and limitations of our device. Conclusion: This study suggests that ESWT with proper dosage and intervals between treatment phases can appreciably facilitate osseointegration of dental implants. therefore, it can be used as a non-invasive, cost-beneficent adjuvant treatment alongside dental implant.