Highly producible method for determination of occlusal vertical dimension: relationship between measurement of lip contact position with the closed mouth and area of upper prolabium
Highly producible method for determination of occlusal vertical dimension: relationship between measurement of lip contact position with the closed mouth and area of upper prolabium
复制标题
DOI：
10.1016/j.jpor.2018.06.005
复制
发表时间：
2018-10-01
影响因子：
3.6
通讯作者：
Koide, Kaoru
中科院分区：
文献类型：
--
作者：
Watarai, Yuko;Mizuhashi, Fumi;Koide, Kaoru
目的：一种新的方法诱导的下颌骨的生理休息位使用唇接触位置与关闭的嘴已经比较了那些使用传统的方法放置在生理休息位的下颌骨。方法：唇接触位置与关闭的嘴作为一种方法，调查是否该技术是有用的，用于确定咬合垂直尺寸。并对闭合状态下唇接触位上、下颌前牙间距与前唇面积的关系进行了研究。闭合口唇接触位上、下颌前牙间隙中位数为1.53mm，该值介于通过常规技术获得的下颌静止位置的2.16 mm值和吞咽位置的1.33 mm值之间。闭合口唇接触位的间隙变异系数显著低于下颌静息位和吞咽位。一个显着的正相关关系被确认之间的空间在唇接触的位置与关闭的嘴和面积的前唇的上唇。结论：这些结果阐明，唇接触的位置与关闭的嘴获得了良好的再现性相比，传统的方法。结果提示，上唇前唇面积可作为个体确定游离间隙的有效指标。(C)2018日本口腔修复学会。由爱思唯尔有限公司出版。保留所有权利。
Purpose: A new method inducing the physiologic rest position of the mandible using the lip contact position with the closed mouth have compared with those obtained using conventional methods of placing the mandible in the physiologic rest position.Methods: The lip contact position with the closed mouth as a method was investigated whether the technique was useful for determining the occlusal vertical dimension. The relationship between the space between the maxillary and mandibular front teeth in the lip contact position with the closed mouth and the areas of the prolabia was also investigated.Results: Median space between the maxillary and mandibular front teeth in the lip contact position with the closed mouth was 1.53 mm, a value intermediate between the value of 2.16 mm in the resting mandibular position obtained by the conventional technique and that of 1.33 mm in the swallowing position. The coefficient of variation of the space in the lip contact position with the closed mouth was significantly lower than those in the resting mandibular position and in the swallowing position. A significant positive correlation was recognized between the space in the lip contact position with the closed mouth and the area of the prolabium of the upper lip.Conclusions: These results clarified that the lip contact position with the closed mouth obtained the excellent reproducibility comparing to the conventional methods. These findings suggested that the area of the prolabium of the upper lip might offer an effective index for individual determination of the correct free-way space. (C) 2018 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved.