Using occlusal and interproximal tooth wear as indicators of age, it is found that those animals with evident hypertrophy and hyperplasia of the condylar cartilage are among the youngest in the sample, supporting the view that adaptive potential of the temporomandibular joint may diminish with age.

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Author notes

Dr. Hinton is an Assistant Professor in the Department of Gross Anatomy at Baylor College of Dentistry in Dallas, Texas. He holds M.A. and Ph.D. degrees from the University of Michigan

Dr. McNamara is Professor of Anatomy and Cell Biology at the University of Michigan Medical School, and Associate Research Scientist at the Center for Human Growth and Development. He is a graduate of the Orthodontic Program at the University of California in San Francisco, and holds a Ph.D. in anatomy from the University of Michigan