A method of studying the effects of reduced alveolar support on the sensibility to axial force on the incisor teeth in humans

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Abstract
A method has been developed for measuring the threshold level of sensibility to axial pressures applied to the incisor teeth in man. Eight subjects were investigated, four with normal alveolar support and four with support reduced by up to 60 % as a result of chronic periodontal disease. Reduced alveolar support appears to have no1 significant effect on the threshold of perception. All subjects had a lower threshold for the removal of force than for its application. Infiltration of local anaesthetic labially over the test tooth resulted in failure to feel forces previously recognised, thus confirming the role of the periodontal receptors in force perception.