Nihon Hotetsu Shika Gakkai Zasshi
Online ISSN : 1883-177X
Print ISSN : 0389-5386
ISSN-L : 0389-5386
Normal Range of Viscoelastic Properties of Periodontium using Automatic Diagnostic System for Tooth Mobility
In Cases of Upper Central Incisors, Canines and First Molars
Mitsuhiro TatsutaKeiji SarataniTakayoshi KawazoeTakeki NakanishiYukinori KunoShinji Matsumoto
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1994 Volume 38 Issue 6 Pages 1265-1272

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Abstract
Tooth mobility indicates a functional situation of periodontium and it is important to grasp tooth mobility in clinical prosthodontic treatment.We have already developed an automaticdiagnostic system for tooth mobility and an analysis of periodontium was carried out in terms ofperiodontal viscoelasticity using this diagnostic system.It is considered that viscoelasticity ofhealthy periodontium has a certain range according to each tooth group, age and sex.In this study, we attempted to establish the normal range of viscoelasticity in periodontally healthy teeth innormal subjects.
Normal ranges were calculated with the parametric statistics on 101 upper central incisors, 105upper canines and 107 upper first molars with healthy periodontium of 57 subjects aged between 21and 28 years in both sexes, using the automatic diagnostic system for tooth mobility.
Significant differences were found among tooth groups in all parameters with the Kruskal-Wallis test (p<0.05).Significant differences were found between sexes in c, of central incisors, c2of all tooth groups and k of first molars with the Mann-Whitney test (p <0.05).Normal rangeswere calculated separately from sexes and tooth groups.We calculated normal ranges with mean ±2 × standard deviation, after carrying out the Smirnov tests and the distribution pattern tests.
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© Japan Prosthodontic Society
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