PMID: 7028928Sep 1, 1981Paper

The role in masseter muscle activities of functionally elicited periodontal afferents from abutment teeth under overdentures

Journal of Oral Rehabilitation
E Mushimoto

Abstract

Five overdenture wearers with a small number of remaining natural teeth were selected to evaluate the effect of the afferent input from periodontal mechanoreceptors on masseter activity in man. As a control, a full denture wearer was included. The subjects were instructed to chew a piece of gum, and/or tap their teeth. Surface EmG from the bilateral masseter muscles were recorded and analysed. When functional pressure was applied, during chewing, to the abutment teeth as well as to mucosa through the denture base, masseter activities were encouraged. Following application of anaesthesia to the periodontal membrane of the abutments, masseter activities were reduced. The duration of the silent period (SP) appearing in the EMG burst following tooth tapping was significantly increased with root support compared to mucosal support only. With topical anaesthesia of the periodontal tissues, SP duration decreased significantly. In conclusion, it has become apparent that the pressure sensibility of abutment teeth bearing functional pressure under an overdenture base is capable of facilitating masseter activity, as one of the sources of oral sensory input during mastication.

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Citations

May 1, 1993·Journal of Oral Rehabilitation·F MüllerM P Hector
Jul 22, 2006·Journal of Oral Rehabilitation·J DongT Nokubi
Oct 1, 1992·Community Dentistry and Oral Epidemiology·E Budtz-Jörgensen
Jan 31, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Ronald L Ettinger, Fang Qian
Aug 1, 1988·Acta Odontologica Scandinavica·E Budtz-Jørgensen, A Thylstrup
Feb 13, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Anuj ChhabraDebipada Kabi

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