Li Xiao-Qian, Ma Xiao-Ni, Xu Xin
Dept. of Periodontics, Stomatological Hospital of Shandong University, Jinan 250012, China.
Dept. of Implantation, Stomatological Hospital of Shandong University, Jinan 250012, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2018 Dec 1;36(6):628-632. doi: 10.7518/hxkq.2018.06.009.
This study aims to evaluate the occlusal characteristics of full edentulous patients with implant-supported prostheses and to provide a reference with the occlusal situation for clinicians.
A Teetester occlusal analysis system was used with 30 full edentulous patients of implant-supported fixed denture (test group) in comparison with 30 natural dentition (control group). The percentage of occlusal force distribution were measured, as well as the occlusal time at the intercuspal, protrusion, and left and right lateral positions.
Compared with control group, the occlusion time, maximum occlusal force in intercuspal of test group significantly reduced (P<0.05); while control group was obviously superior to test group in the left and right bit force degree. Disclusion time in protrusion, occlusion times in lateral positions of test group also significantly reduced (P<0.05). There were no significant differences in average occlusion force, percentage of total force in anterior teeth, and lateral occlusion between test group and control group.
The maximum occlusal force in intercuspal of full edentulous patients with implant-supported prostheses reduce. The occlusal force in protrusive occlusion is concentrated in the front teeth, and the group function occlusion is the main lateral occlusal pattern.
本研究旨在评估种植支持修复的全口无牙颌患者的咬合特征，为临床医生提供咬合情况的参考。
采用Teetester咬合分析系统，对30例种植支持固定义齿的全口无牙颌患者（试验组）与30例天然牙列患者（对照组）进行比较。测量咬合力量分布百分比，以及在牙尖交错位、前伸位和左右侧方位的咬合时间。
与对照组相比，试验组的咬合时间、牙尖交错位最大咬合力显著降低（P<0.05）；而对照组在左右咬力程度上明显优于试验组。试验组前伸位的分开时间、侧方位的咬合次数也显著减少（P<0.05）。试验组与对照组在平均咬合力、前牙总力百分比和侧方咬合方面无显著差异。
种植支持修复的全口无牙颌患者牙尖交错位的最大咬合力降低。前伸咬合时咬合力集中在前牙，组牙功能合是主要的侧方咬合模式。
