Keshvad A, Winstanley R B, Hooshmand T
Department of Restorative Dentistry, School of Clinical Dentistry, University of Sheffield, UK.
J Oral Rehabil. 2000 Mar;27(3):217-26. doi: 10.1046/j.1365-2842.2000.00509.x.
A clinical study was designed to investigate the relationship between intercondylar width (ICW) and inter-dental widths of the upper and lower canines and first molars to aid in denture teeth positioning. The study was divided into two parts so that the results of the first part could be verified in the second part. In the first part, 27 adult subjects were selected according to the exclusion criteria of the study. A kinematic hinge axis locator was used to locate the true point of condylar rotation. The distance between these points was considered to be the ICW. A strong correlation was found between ICW and interdental measurements, with ICW and upper first molars being the strongest (r=0.612, P= 0.004). A set of indices developed from the results was recommended for the positioning of complete denture teeth. In the second part of the study, inter-dental measurements were estimated using the indices obtained in the first part. The estimated inter-dental widths showed no significant differences compared with the real widths (P= 0.109, P=0.849, P=0.353, P=0.41). Based on the results of this study, ICW measurements can be used for setting up canines and first molars in complete dentures.
一项临床研究旨在调查髁间宽度（ICW）与上下颌尖牙及第一磨牙牙间隙宽度之间的关系，以辅助义齿牙齿定位。该研究分为两部分，以便第一部分的结果能在第二部分得到验证。在第一部分中，根据研究的排除标准选取了27名成年受试者。使用运动铰链轴定位器来确定髁突旋转的真正点。这些点之间的距离被视为ICW。发现ICW与牙间隙测量值之间存在强相关性，其中ICW与上颌第一磨牙的相关性最强（r = 0.612，P = 0.004）。根据结果制定了一组指数，推荐用于全口义齿牙齿的定位。在研究的第二部分，使用第一部分获得的指数来估计牙间隙测量值。估计的牙间隙宽度与实际宽度相比无显著差异（P = 0.109，P = 0.849，P = 0.353，P = 0.41）。基于本研究结果，ICW测量可用于全口义齿中尖牙和第一磨牙的排牙。
