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Previous studies have shown that the human resting dentition naturally exhibits slight interproximal spacing between 80% to 90% of all adjacent teeth. The purpose of this study was to measure occurrence and dimension of interproximal spacing. Pieces of shim stock of various thicknesses were used to measure the dimension of interproximal spaces between… (More)
A total of 969 proximal contacts in forty volunteer subjects was examined for proximal contact integrity with shim stock. It passed uninhibited through 88% of the contacts. Neither sex nor age affected the evaluation; however, shim stock was more likely to pass through contacts with enamel surfaces than those which were restored.