Temporomandibular joint osteoarthritis at Chelechol ra Orrak, Palau
| Autor: | Greg C. Nelson, Scott M. Fitzpatrick, Jessica H. Stone |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Archeology Palau Context (language use) Osteoarthritis Pathology and Forensic Medicine stomatognathic system Tooth loss Humans Medicine 0601 history and archaeology Areca History Ancient Orthodontics 060101 anthropology 060102 archaeology Dentition business.industry Dental occlusion 06 humanities and the arts Temporomandibular Joint Disorders medicine.disease Temporomandibular joint stomatognathic diseases medicine.anatomical_structure Tooth wear Mastication Female medicine.symptom Malocclusion business |
| Zdroj: | International Journal of Paleopathology. 28:20-31 |
| ISSN: | 1879-9817 |
| Popis: | Objective To explore the frequency and severity of temporomandibular joint osteoarthritis (TMJ-OA) and its causative factors in a skeletal assemblage from the prehistoric site of Chelechol ra Orrak, Palau, western Micronesia. Materials 50 temporomandibular joint surfaces (mandibular condyles and articular eminences), representing a minimum of 22 adult individuals, 17 of which retain teeth. Methods Joint surfaces were macroscopically evaluated for characteristics associated with TMJ-OA and joint morphology. Dental remains were scored for tooth wear and staining. Results Nine individuals (40.1 %) displayed lesions typical of TMJ-OA. The strongest associations were between tooth wear and TMJ-OA. Conclusions Indirect effects of parafunctional dental activity appear to be a factor in TMJ-OA frequency at Chelechol ra Orrak. While betel nut chewing may be one of those activities, it does not appear to be solely driving the presence of TMJ-OA. Significance This study highlights the association between a specific parafunctional use of the temporomandibular joint and the potential pathological consequences. It also reinforces the need to carefully evaluate the archaeological context of skeletal remains in order to evaluate specific etiological factors in the presence of TMJ-OA in present and past populations. Limitations Sample sizes are limited in this study. This will increase as excavations continue. Suggestions for Further Research Because dental occlusion appears to be associated with TMJ-OA, focus on dental conditions affecting occlusal patterns, such as third molar agenesis, antemortem tooth loss, and malocclusion, and their relationship to TMJ-OA frequency, are recommended. |
| Databáze: | OpenAIRE |
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