School of Dentistry
Permanent URI for this communityhttps://dspace.tbzmed.ac.ir/handle/123456789/3
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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Item type: Item , 3D Evaluation of Condyle Position in CBCT Images of Skeletal Class I and III Patients(Tabriz university of medical sciences , school of dentistry, 2020) Babaei, Tohid; Esmaili, Farzad; oral and maxillofacial radiology; Saeidi Vahdat, ArmanAbstract Introduction 3D position of condyle in glenoid fossa directly affects the anterior, posterior and vertical position of the mandible. By using different techniques and measurements and also using CBCT images, the present study demonstrated the difference between the 3D position of condyle in class III pattern and the normal class I pattern. Materials and Methods In this descriptive cross-sectional study, CBCT images of 48 patients with the classI skeletal relationship and 48 patients with the class III skeletal relationship were selected. From these images sagittal , axial , coronal and 3d models were acquired by using the NNT viewer software.The patients with the classes I and III skeletal relationship were separated based on the ANB angle .The parameters (APC) and (VPC) were measured in the sagittal section. The parameters (ACA),(LLPC) and (APDC) were measured in the axial sections and the parameters (VDC) and (CCA) were measured in the coronal sections. The results were reported by using Means and standard deviations. In order to compare the 3d positions of the condyle in the classes I and III skeletal groups independent t-test was used. SPSS/20 software was used for statistical analysis and p value <0/05 were considered statistically significant. Results Among the measured parameters , vertical position of condyle ( VPC) was higher in class III skeletal patients compared to class 1 skeletal patients. The CCA parameter or the coronal condylar angle was also increased in class III skeletal patients compared to class 1 skeletal patients. All the parameters defining the 3d position of the condyle were similar among men and women in class 1 and 3 skeletal patients. The parameters were also similar between the right and left condyle in each individual patient.Item type: Item , A Clinical Comparision of the retention of sealant in prompt Lpop and acid etchbonding conditioning techniquesdentistry; Leila Erfanparast[no abstract]Item type: Item , A clinical comparison between coronally advanced flap with amniotic membrane or subepithelial connective tissue graft in treatment of miller class I and II gingival recessionsNader Abolfazli; dentistry; Ardeshir LafziAmniotic membrance is one of the absorbable allogenic grafts with numerous advantages and nowadays is used in different medical fields especially opthalmology and skin. the aim of this randomized controlled clinical trial was to compare coronally advanced flap with amniotic membrane or subepithelial connective tissue in treatment of miller class I and II gingival recessions. Methods: 30 defects in 11 patients with miller class I and II gingival recessions >= 3 mm depth, were treated with amniotic membrane or subepithelial connective tissue graft. Gingival recessions in the test group were treated with coronally advanced flap and amniotic membrane, and in the control group with coronally advanced flap and subepithelial connective tissue. the studied parameters included width of keratinized tissue, probing depth, clinical attachment level, recession depth and width, percentage of root coverage, position of mucogingival junction(MGJ), plaqe index and gingival index were evaluated at baseline and 1, 3 and 6 months after surgery. All data were analyzed by SPSS, ANOVA and T-tests. Results: all of the patients completed the study. After 6 months, the mean root coverage was 75+-28/26% and 63+-63/40% in control and test group, respectively. Both of the treatment modalities led to improvment in the recession depth and width and clinical attachment level (p<0/01). There was no significant difference in width of keratinized tissue in both treatment groups compared to baseline. There was no significant difference in any of the evaluated parameters between the study group. Conclusion: It does not seem that the application of nmniotic membrane in comparison with subepithelial connective tissue graft improves the clinical results of root coverage procedures, but this modality in comparison with standard procedure (coronally advanced flap with subepithelial connective tissue graft) significantly reduces surgical time and postoperation patient discomfort and it is possible to treat multiple defects simultaneously.Item type: Item , A clinical comparison of decalcified freezedried bone Allograft(DFDBA) with Autogenous Bone Graft in the treatment of tow and threewalls intrabony periodontal defects. With six month reentryArdeshir Lafzi; dentistry; Nader Abolfazli[no abstract]Item type: Item , Item type: Item , A clinical stusy to compare applications of N2O and local anesthesia methods in extraction of teeth based on comparative observations of outpatients in Imam hospital and oral and maxillofacial surgery department of school of dentistry of Tabriz univeMahmoud eidy; dentistry; Reza Khorshidi[no abstract]Item type: Item , A clinical trial for evaluation of dental implant placement in hydroxyl apatite augmented ridgesdentistry; Ahmd Arta[no abstract]Item type: Item , A comparative clinical study of coronally advanced flap with and without the use of plasma rich in growth factors in the treatment of miller I,II gingival recessionsMohammad Taghi Chitsazi; dentistry; Ardeshir Lafzi[no abstract]Item type: Item , A comparative clinical study of subepithelial connective tissue graft with and without the use of Plasma rich in growth factors in the treatment of Miller I,II gingival recessionsMasoumeh Faramarzie; dentistry; Ardeshir LafziPlasma rich in growth factors (PRGF), containing autologous growth factors, has been shown to promote soft tissue healing. The purpose of this randomized controlled, clinical investigation was to evaluate the differences in clinical parameters of root coverage procedures utilizing subepithelial connective tissue graft (SCTG) with and without plasma rich in growth factors (PRGF). Methods: Twenty contralateral sites in 6 patients with >3 mm of Miller class I and II buccal marginal tissue recession were treated. Test sites received (SCTG) plus PRGF while control sites were treated with SCTG only, with each patients serving as his own control. Clinical parameters included recession depth (RD), percentage of root coverage (RC), recession width (RW), attached gingival (AG), width of keratinized tissue (WKT), clinical attachment level (CAL), probing depth (PD). Patients were followed for 3 months post-surgery. All data were analyzed by two sample t-test and SPSS. Results: All of patients completed the study. After 3 months, the mean root coverage was 72/7212 % in the SCTG group and 75/0825/12 % in the SCTG +PRGF. Both of treatments led to significant improvement in the recession depth (RD), recession width (RW), clinical attachment level (CAL), keratinized tissue (WKT)I?attached gingival (AG) and root coverage (p<0.001). There was no significant difference in the depth of pocket (PD) in two treatment groups compared to baseline. Also, there was no significant difference in any of the parameters between the study groups. Conclusion: Based on the results of this study, the application of PRGF in root SCTG coverage procedure provides no clinically enhancements on the final therapeutic outcomes, but more research is necessary.Item type: Item , A comparative evaluation of antimicrobial efficacy of four endodontic sealers against Enterococous faecalisMahsa Eskandari Nezhad; dentistry; Mohammad Forog ReyhaniAntimicrobial properties of endodontic sealers would influence the success rate of root canal therapy. Therefore the purpose of this study was to compare the antimicrobial effect of MTA Fillapex,Epiphany,Dorifill and Apexit plus on Enterococcus faecalis by Agar Diffusion Test (ADT). Methods and Materials:Ten plates were cultured with E. faecalis suspension(1.5 10 8CFU/ml) on Muller Hinton agar. five pits were prepared on medium surface by metal punch and the freshly mixed sealers were applied to four of them. The fifth pit was maintained empty as positive control. After incubation , diameter of the bacterial growth-free area around sealers was measured at 3, 5, and 7-day intervals. Results: Statistical analysis revealed that there was a significant difference in growth-inhibition area grade among all experimental sealers grades at all study intervals (p<0.01) except Dorifill and Apexit plus , there was no significant difference in growth-inhibition area grade among them. MTA Fillapex beard more growth-inhibition diameter in comparison to three other sealers (p<0.01). Conclusions: MTA Fillapex sealer has more antibacterial effect rather than Epiphany,Dorifill and Apexit plus on Enterococcus faecalis. The antibacterial effect of sealers decreases as time elapses.Item type: Item , A Comparative evaluation of senior students of dentistry and general dentist's knowledge on Harvesting and handling of oral biopsies in the city of Tabriz in 2014dentistry; Amir ala AghbaliAn oral biopsy is essential for definitive diagnosis of oral lesions, and for planning the appropriate treatment. Any fault that happens in biopsy procedures may result in diagnostic errors by pathologists. Thus, inadequate awareness of dentists and patients about biopsy is a significant concern for both of them. Purpose: The aim of this study was to compare the senior students of dentistry and dental medical doctors' knowledge about harvesting and handling of oral biopsies in tabriz city. (2014) Materials and Method: This cross-sectional study was conducted by using a questionnaire. The data were collected and analyzed through SPSS, version 15. Independent t-test was employed to determine the differences between groups. Results: Of the total 142 collected questionnaires, 42 and 100 were completed by dental students and general dentists, respectively. Accurate responses grades by the students (7.7) was significantly higher than those of the dentists (6.4 ; p =0.00). Among general dentists the Knowledge level on Harvesting and Handling of Oral Biopsies was 57.1% and among dental student was 62% . (p=0.00) Conclusion: This study revealed that dental medical doctors' awareness regarding harvesting and handling of oral biopsies is lower than that of the students of dentistry. Moreover, gender and professional experience did not affect the level of knowledge. Consequently, there is a need for further training in this respect for dental medical doctors.Item type: Item , A comparative scanning electron microscope investigation of cleanliness of root canals using hand KFlexofile,rotary K3and RaCe instrumentsVahid Zand; dentistry; Saeed Rahimi[no abstract]Item type: Item , A comparative study of autogenous bone graft use with and without low-level laser therapy in the treatment of the two and three wall intrabony periodontal defectsdentistry; Nader AbolfazliIntrabony lesions caused by periodontal disease are of particular importance in terms of treatment. Recently, the use of low power laser or Low-level laser therapy (LLLT) as one of the new methods to improve bone repair has been of great interest. The purpose of this study was to compare the use of autogenous bone alone and in combination with Low-level laser therapy (LLLT) in the treatment of two and three wall periodontal intrabony defects in vivo. Materials and methods: A number of 14 patients with moderate to severe chronic periodontitis were with bilateral intrabony defects ( probing pocket depth of at least 5 mm and intrabony component of at least 3 mm) were included. In a split mouth study, 14 defects were treated in one side by OFD and autogenous bone while in the contralateral side Low-level laser therapy was done as an adjunct treatment to the OFD and autogenous bone grafting. A GaAlAs diode laser (830 nm) (continuous wave 40 Mw and fluency 4 J/cm2 with total energy density of 16 J/cm2) was used. Laser therapy was repeated at days 3, 5 and 7 with the same parameters. Re-entry surgeries were done after 3 months. Clinical probing pocket depth, clinical attachment level, gingival margin level, alveolar crest level and the deepest part of the defect all were recorded relative to an acrylic stent at baseline and after 3 months. Intrabony defect depth was also recorded at baseline and after 3 months. Results: Application of a low level laser with the parameters listed reduced probing depth (3.78 0.72 mm vs. 2.39 1.02 mm), improved the clinical attachment level (3.42 0.93 mm vs. 2.25 1.12 mm), reduced the distance between deepest part of the defect to stent (3.21 1.03 mm vs. 1.44 0.20 mm) and also reduced defect depth (1.33 0.18mm versus 2.50 0.91 mm ) significantly when compared to control group , while it had no significant effect on gingival margin level and alveolar crest level. conclusion: The results of this study suggests the use of low level laser therapy in combination with autogenous bone can improve the periodontal treatment outcome in terms of probing depth reduction, clinical attachment level improvement and reduction of the defect depth.Item type: Item , A comparative study of biocompatibility of white and gray mineral trioxide aggregate and type II and type V portland cement in rat connective tissueSaeed Rahimi; dentistry; Shahriar Shahi[no abstract]Item type: Item , A Comparative study of oral health attitudes and behaviour between medical and non medical sciences students in Tabriz university of Irandentistry; Amir Mohammadi[no abstract]Item type: Item , A comparative study of the clinical training system changes Tabriz dental faculty of the contry in 2003 to 2007Abolghasem Amini; dentistry; Shahriar Shahi[no abstract]Item type: Item , A comparative study of the effect of double pedicle graft with and without plasma rich in growth factor (PRGF) in the treatment of class I & II gingival recessionsMasoumeh Faramarzi; dentistry; Nader Abolfazliprevious researches have shown that Plasma rich in growth factors (PRGF) promote soft tissue healing. The purpose of this randomized controlled, clinical investigation was to evaluate the effect of double pedicle flaps (DPF) in root coverage with and without plasma rich in growth factors (PRGF). Materials & Methods: thirty pair sites in 15 patients with Miller class I and II recession were treated. In Test sites PRGF was used with DPF, while control sites were treated with DPF only. Under study Clinical parameters included: recession depth (RD), percentage of root coverage (RC), recession width (RW), attached gingival (AG), width of keratinized tissue (WKT), clinical attachment level (CAL), probing depth (PD). Patients were examined & evaluated after 1- 3 and 6 months post-surgery. All data were analyzed by SPSS15 and ANOVA (two ways). Results: Both of the treatment method led to significant improvement in the recession depth (RD), recession width (RW), clinical attachment level (CAL), keratinized tissue (WKT)and root coverage 6 months after surgery (p<0.001). While there was no significant difference after 6 months in the depth of pocket (PD) in two treatment groups compared to baseline. But, there was significant difference in RD, RW, CAL and root coverage, between the study & control group. Conclusions: based on the results of this study, DPF method with application of PRGF in root coverage procedure is more effective than the other method (DPF without PRGF).Item type: Item , A comparative study on Benzydamin HCL 0.15% and Acetaminophen in pain reduction following soft tissue surgeryKamran Sedaghat; dentistry; Reza KhorshidiPain is a common complication after oral cavity surgeries. Different drugs have been introduced for pain relief. Benzidamine HCL bears analgesic and anesthetic effects without having any significant adverse effect. Therefore, this study aimed to compare the analgesic efficacy of Benzidamine HCL mouthrinse and acetaminophen in post-operative pain after soft tissue surgeries. Materials & Methods: In this study, 44 patints reffernig department of oral and maxillofacial surgery of Tabriz dental facultu were selected and divided into two groups randomly. In one group acetaminophen 500mg and in the other group Benzidamine HCL 0.15% was administrated. The pain severity was measures by visual analoge scale (VAS) by patients at 5, 12, and 24 hours after surgery. The collected data was analysed using Spss statistical software. Results: The reported pain levels after sugery in acetaminophen group were 11.1% without any pain, 64.4% with moderate and 24.4% with severe pain. In Benzidamine HCL group 8.8% without any pain, 41.4% with moderate and 29.8% with severe pain were the reported pain amounts. The X2 analysis revealed that the difference between groups in all intervals wasnEt significant (P>0.05). Conclusions: Based on the findings of this study, the analgesic efficacy of acetaminophen and benzidamine HCL was the same.Item type: Item , A Comparison effect of aloevera gel and adcortyle ointment in treatment of oral lichen planusMasomeh Mehdipour; dentistry; Marziyeh BoorghaniOral lichen planus (OLP) is a relatively common chronic informmatory diseases of oral mucosa with a prevalence rate of 0/5% -2/2% etiology of the OLP is unknown. A variety of treatments have been proposed for OLP: tipical or systemic corticosteroids, cyclosporine, retinoids, azathioprine, tacrolimus, pimecrolimus, photochemotherapy and surgery. Patients with symptomatic OLP often require intensive therapy to reduce the signs and symptoms that can alter patient quality of life. On the other hand , there is some reports about anti-inflammatory properties of Aloe Vera (AV) gel with no side effect reported. The objective of this study was to evaluate the efficacy of the topical application of Aloe Vera (AV) in OLP compared with adcortyle. Materials and methods: In this study 20 patient were chosen and divided into two groups randomly to use either AV gel or Adcortyle. Duration of treatment was 2 weeks and patients were followed after each week and after first month too. In this case-control study we applied independent t-test to compare mean difference and we used SPSS.15 computer software (P<0/05). Results: AV gel in more effective that adcortyle in reduction of pain and size of lesions in OLP. Conclusion: using AV gel is an effective treatment for OLP and can improve the quality of life in patients with OLP.Item type: Item , A comparison of amounts of apically extruded debris using two rotary (Bio race, Mtwo) and handling step-back (K file) instrumentation techniquesAmin Salem Milani; dentistry; Mohammad forogh ReihaniDentinal debris and necrotic tissues might extrude from apical foramen into periapical tissues which is responsible for post-operative pain and other complications. Aim: This study aimed to evaluate the amount of debris extrusion by two hand and rotary instrumentation techniques in vitro. Methods and Materials: Sixty single-canal human premolar teeth were divided into three experimental groups randomly. In each group one of the instrumentation techniques was utilized (BioRaCe NiTi rotary instrumentation with step-back technique, Mtwo NiTi rotary by single length technique, and K-file hand instrumentation with step-back technique). The extruded debris from apical foramen during instrumentation were collected in poly ethylene tubes which were weighed before beginning of instrumentation. The extruded debris were dried and weighed again. The weight difference of vials before and after instrumentation was measured. The collected data was analyzed using one-way(ANOWA) analysis of variance. The P<0.05 was considered statistically significant at this study. Results: The mean debris extruded by BioRaCe, K-file , and Mtwo was 1.061.2, 1.15 0.7, and 0.58 0.3, respectively. Mtwo rotary files extruded the least debris from apex; however there was not any significant difference between experimental groups (P>0.05). Conclusions: All instrumentation techniques cause debris extrusion from root apex.