体位和头位对牙科治疗中切牙点偏差的影响

Mami Ishii, K. Koide, M. Ueki, Naoki Asanuma
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引用次数: 4

摘要

目的:本研究的目的是确定在接受牙科治疗时身体和头部位置的变化如何影响下颌位置,并制定一套患者姿势标准。方法:对8例正常咬合且无任何口颌功能障碍的患者进行下颌位置调查。采用gnathohexraph(一种具有6个自由度的三维下颌运动测量装置)测量叩击点在切点上的位置,受试者坐位时头部处于4个不同的位置,仰卧时身体和头处于16个不同的位置,然后比较每个位置与参考位置的偏差。数据的统计分析首先采用单因素方差分析(α= 0.05),其次采用Bonferroni多重比较检验。对仰卧位进行重复双因素方差分析,然后进行Bonferroni多重比较检验。结果:由于头部和身体位置的改变,切点在前后方向有明显的偏移。当受试者坐着时,当受试者被要求从参考位置向后倾斜时,切点有向后移动的趋势。当受试者被要求身体前倾时,切尖倾向于向前移动。受试者仰卧位时,切点向后倾斜。无论身体向后倾斜的程度如何,当头部位置从向后10度变化到向前20度时,切点向后倾斜的程度都有下降的趋势。结论:口腔治疗过程中身体和头部姿势的改变对切牙点偏差有影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Influence of Body and Head Posture on Deviation of the Incisal Point Undergoing Dental Treatment
Purpose: The objectives of this study were to determine how changes in body and head position undergoing dental treatment affect mandibular position, and to develop a set of standards for patient posture.Methods: Mandibular position was investigated in 8 subjects with normal occlusion and not suffering any stomatognathic dysfunction. This was done by measuring the location of the tapping point on the incisal point using a Gnathohexagraph (a 3-dimensional jaw movement measurement device with 6 degrees of freedom), with the subject’s head in 4 different positions while sitting, and the body and head in 16 different positions with the subject supine, and then comparing deviation from the reference position in each of these positions. Statistical analysis of data was performed using first, repeated measures of 1-way ANOVA (α=.05), second Bonferroni’s multiple comparison test was undertaken in seated positions. In supine positions, repeated measures of 2-way ANOVA was performed, and followed by Bonferroni’s multiple comparison test was performed.Results: The incisal point deviated significantly in the anteroposterior direction due to changes in head and body position. With the subjects seated, the incisal point tended to move backwards when the subjects were asked to lean backwards from the reference position. The incisal point tended to move forward when the subjects were asked to lean forward. With the subjects in a supine position, the incisal point was inclined backwards. The degree of backwards inclination of the incisal point tended to decline as the head position was varied from 10 degrees backwards to 20 degrees forward, regardless of the degree of backwards inclination of the body.Conclusion: Changes in body and head posture undergoing dental treatment affect incisal point deviation.
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