TY - JOUR ID - 43590 TI - Histological Evaluation of the Temporomandibular Joint after Producing Artificial Traumatic Occlusion in Dogs JO - Journal of Dentistry JA - DENTJODS LA - en SN - 2345-6485 AU - Madani, A. AU - Mohtasham, N. AU - Jazayeri, M. AU - Shahabian, F. AU - Shakeri, M. AD - Dept. of Prosthodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran AD - Dept. of Oral and Maxillofacial Pathology, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran AD - Dept. of Oral Medicine, School of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran AD - Public Health Department of Ghaem Hospital, Mashhad University of Medical Sciences Y1 - 2010 PY - 2010 VL - 11 IS - Supplement Winter 2010 SP - 1 EP - 7 DO - 10.30476/dentjods.2019.43590 N2 - Statement of Problem: Traumatic occlusion can have an adverse effect on the temporomandibular joint tissue.Purpose: This study aims to determine the histological alteration in dog-s’ temporomandibular joints due to production of artificial traumatic oc­clusion.Materials and Methods: Twenty dogs were divided into a control gro­up of four and two equal experimental groups. Unilateral occlusal interf­erences were created on the mandibular right first molars in the experim­ental groups. We established two experimental periods: one week and 45 days. After vital perfusion, the TMJs were separated for preparation, pig­mentation, and examination by a pathologist. Descriptive statistics, Chi-square and Fisher's exact test were used to analyze the data. P.value less than 0.05 was considered as significant.Results: The findings showed no inflammatory changes in the TMJ. Increased fibrosis was found in 56.30% and vascularization in 28.12% of the disks. Fibrotic changes were detected in 46.87% and vascularization in 28.12% of the condyles. The glenoid fossas suffered from fibrosis in 15.62% of the cases.Conclusion: Traumatic occlusion leads to histopathological alterations including an increase in the fibrosis tissue and vascularization in the condyle and disk.KEY WORDS: Dental occlusion; Traumatic; Histology; Temporomandibular joint UR - https://dentjods.sums.ac.ir/article_43590.html L1 - https://dentjods.sums.ac.ir/article_43590_9c7640ffa3595b062e39bb6c73801462.pdf ER -