Dental attrition and degenerative arthritis of the temporomandibular joint

Richards, Lindsay; Brown, T.

doi:10.1111/j.1365-2842.1981.tb00504.x

Cited by 64 publications

(54 citation statements)

References 26 publications

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“…In addition, condyle form was described by dividing the surface into posterior, anterior-medial, and anterior-lateral regions and classifying each area as convex, flat, or concave (Richards, 1987). Pathological changes in the joint were described as mild or severe, depending on whether erosive or proliferative changes affected less than or more than half at the joint surface (Richards and Brown, 1981b).…”

Section: Methodsmentioning

confidence: 99%

Tooth wear and temporomandibular joint change in Australian Aboriginal populations

Richards

1990

American J Phys Anthropol

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The masticatory system consists of teeth, temporomandibular joints, and the supporting craniofacial skeleton. The form and function of each of these components of the system can be understood only within the overall context of the system. In a series of studies, the complex relationships between tooth wear and temporomandibular joint morphology and pathology were considered in samples consisting of a total of 58 male and 54 female crania from two Australian Aboriginal populations. The extent and buccolingual direction of tooth wear were assessed using established techniques. Both metric and nonmetric descriptions of temporomandibular joint morphology and pathology were developed. Significant differences in patterns of tooth wear and in the frequencies of various temporomandibular joint changes were evident between sexes and between populations. Furthermore, significant correlations between a number of tooth and joint variables were also evident. In addition, there was clear evidence of relationships between both tooth wear and temporomandibular joint changes and craniofacial morphology. The results of this study provide additional evidence of the complex relationships between the form and function of the masticatory system.

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Section: Methodsmentioning

confidence: 99%

Tooth wear and temporomandibular joint change in Australian Aboriginal populations

Richards

1990

American J Phys Anthropol

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“…This provokes a secondary inflammatory response with further degradation of the joint components. [27][28][29] Aetiological factors include biomechanical overloading, loss of molar support and attrition, 30 internal derangement of the joint, 31,32 as well as microtrauma caused by bruxism and unilateral chewing.…”

Section: Osteoarthritismentioning

confidence: 99%

Application of cone beam computed tomography for assessment of the temporomandibular joints

Barghan

Tetradis

Mallya

2012

Australian Dental Journal

189

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Radiographic examination is essential for the diagnosis and management of temporomandibular joint (TMJ) disorders. The goals of TMJ radiography are to evaluate cortical and trabecular architecture of the bony structures and confirm their integrity, to assess the extent and monitor progression of osseous changes, and to evaluate the response to treatment. Accurate evaluation of the TMJ by conventional radiography is limited by structure superimposition. Cone beam computed tomography (CBCT) provides high-resolution multiplanar images and delivers substantially lower radiation dose, compared with multislice CT. CBCT allows examination of TMJ anatomy without superimposition and distortion to facilitate analysis of bone morphology, joint space and dynamic function in all three dimensions. This article will describe the role of CBCT imaging for the assessment of the TMJ osseous structures and present typical appearances of common pathological conditions of the TMJ.Keywords: Cone beam, temporomandibular joints.Abbreviations and acronyms: CBCT = cone beam computed tomography; CH = coronoid hyperplasia; CT = computed tomography; FOV = field of view; MRI = magnetic resonance imaging; OA = osteoarthritis; RA = rheumatoid arthritis; SC = synovial chondromatosis; TMD = temporomandibular disorders; TMJ = temporomandibular joints.

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“…The question of tooth wear, arch shape, and hominid taxonomy was explored in some detail by Molnar and Ward (1977), who outlined the factors contributing to the degree and pattern of dental attrition. Other investigators of dental attrition have focused on the relation of tooth wear to degenerate disease of the temporomandibular joint (Hinton, 1981;Richards and Brown, 1981a).…”

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confidence: 99%

Measurements of tooth wear among Australian Aborigines: I. Serial loss of the enamel crown

Molnár

McKee

Molnár

1983

American J Phys Anthropol

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The dental casts made from Aboriginal children during the course of a longitudinal growth study in Central Australia provided material for analyzing tooth wear under known environmental conditions. The wear facets produced on the occlusal surfaces were clearly preserved on the dental stone casts and recorded the progress of enamel attrition from ages 6 to 18. These casts were photographed and traced by electronic planimetric methods that automatically recorded the location and size of wear facets on the first and second permanent molars. These areas of worn tooth surface were compared to the total tooth surface. The worn surface was regressed on age to calculate wear rates of each tooth. Discriminant analyses were also performed to determine the significance of dental attrition differences between the sexes at each age group. The total wear on each tooth was highly correlated with age as expected but females wore their teeth at a significantly higher rate than males. The mandibular molars wore more rapidly than maxillary teeth in both sexes. The discriminant analysis successfully grouped 91% of the cases according to age and sex. Pattern of wear, the location, and size of wear facets also differed between age groups and sex. The questions of why there is a difference between male and female wear or why there is greater wear on one arch or arch region have no ready answers. The differing rates and pattern of dental wear do suggest that arch shape and growth rates may be the answer though it has yet to be tested. However, the occlusal surface wear is useful for age estimation in a population and provides a record of shifting masticatory forces during growth.

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Dental attrition and degenerative arthritis of the temporomandibular joint

Cited by 64 publications

References 26 publications

Tooth wear and temporomandibular joint change in Australian Aboriginal populations

Tooth wear and temporomandibular joint change in Australian Aboriginal populations

Application of cone beam computed tomography for assessment of the temporomandibular joints

Measurements of tooth wear among Australian Aborigines: I. Serial loss of the enamel crown

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