Evaluation of physiological tooth movements within clinically normal periodontal tissues by means of periodontal pulsation measurements.

Abstract:

:The three-dimensional physiological tooth movement synchronized with heartbeat, periodontal pulsation, has already been demonstrated by previous researchers. The purpose of this study was to estimate physiological tooth movements within clinically normal periodontal tissues, thus establishing periodontal pulsation standards. The measuring device consisted of an amorphous sensor and a small magnet, which could detect tooth displacement without coming into contact with the tooth surface. The samples consisted of the left maxillary central incisors of 23 adult subjects. Three points on the labial surface were used as reference points to measure the labial-lingual movement range, and a point on the incisal edge was used for measuring the incisal-apical movement range. Periodontal pulsation and electrocardiogram measurements were recorded simultaneously for six minutes. The results showed that the mean amplitude of periodontal pulsation concerning the labial-lingual movement range was equal at the three labial points (0.59 microm) and tended to be smaller than that of the incisal-apical movement range (0.87 microm). There were no significant differences in the mean amplitude of periodontal pulsation at any of the four reference points. Significant correlations of the amplitude of periodontal pulsation existed among the three labial points. Though most teeth pulsated uniformly to the labial direction, some teeth moved in a complex manner including rotation with an axis among the three labial points. These results suggest that the values of periodontal pulsation amplitude which were recorded employing the amorphous sensor device are reliable standards of periodontal pulsation within clinically normal periodontal tissues.

journal_name

J Periodontal Res

authors

Ioi H,Morishita T,Nakata S,Nakasima A,Nanda RS

doi

10.1034/j.1600-0765.2001.00665.x

subject

Has Abstract

pub_date

2002-04-01 00:00:00

pages

110-7

issue

2

eissn

0022-3484

issn

1600-0765

journal_volume

37

pub_type

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