Comparison between human and rat TMJ: anatomic and histopathologic features
| Autor: | Emanuel Sávio de Souza Andrade, Gabriela Granja Porto, Valdemiro A. Silva-Junior, Belmiro Cavalcanti do Egito Vasconcelos |
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| Rok vydání: | 2009 |
| Předmět: |
Animal Experimentation
musculoskeletal diseases Male Fossa Mandibular angle Condyle stomatognathic system Temporal bone Temporomandibular Joint Disc Anatomy/Comparative Medicine Animals Humans Rats Wistar biology Temporomandibular Joint business.industry Hyaline cartilage Mandibular Condyle Capsule Temporal Bone Anatomy biology.organism_classification Temporomandibular joint Rats stomatognathic diseases Anatomy Comparative medicine.anatomical_structure Mandibular fossa Models Animal Surgery business |
| Zdroj: | Acta Cirúrgica Brasileira v.25 n.3 2010 Acta Cirúrgica Brasileira Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia (SBDPC) instacron:SBDPC |
| ISSN: | 1678-2674 |
| Popis: | PURPOSE: To describe and evaluate normal rat temporomandibular joints from anatomic and histopathologic point of view and make a comparison between this joint in rats and humans. METHODS: Twelve male adult Wistar rats (12 same side joints) were used in this procedure. The following anatomical structures were histologically evaluated in a qualitative fashion: condyle, disc, temporal bone, retrodiscal tissue and synovia. The macroscopical and microscopic study of the human TMJ was based on the current literature. RESULTS: The TMJ is surrounded by a thin capsule, consisting of fibrous tissue, and a synovial lining. The mandibular angle has a prominent shape. The glenoid fossa is flat, with no eminences. Histologically, the TMJ is composed of different tissues that comprise the mandibular head, mandibular fossa and fibrocartilaginous disc. A layer of hyaline cartilage covers the articulating cortical condyle and temporal bone. CONCLUSION:Morphologically and histologically, the articular structure of rats is, on the whole, similar to that of humans. In these animals there is no articular eminence. |
| Databáze: | OpenAIRE |
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