Abstract
AbstractStudies of human tooth wear have been carried on for the past two years using a machine designed to approximate human chewing motions. During this time wear patterns that resemble those frequently found on the teeth of various American Indian skulls have been produced on casts of the definition. Noticeably among these patterns produced are examples of wear on the front end of the dental arches that result in an edge to edge bite. This type of wear was produced by wearing down casts of a modern dentition with a “normal” overbite.The forces applied to the casts mounted on the machine are variable over a wide range and numerous force combinations are possible. By noting these forces and the resulting vectors, the motions necessary to produce different wear patterns can be determined. This has especially aided in understanding the ways in which the oblique molar wear is produced.
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