数字化咬合分析系统在全口义齿中的定量分析研究

发布时间：2018-06-28 07:26

本文选题：咬合接触时间 + 累积最大牙合力　；参考：《南昌大学》2015年硕士论文

【摘要】：目的:1、通过TeeTester数字化咬合分析仪对全口义齿在牙尖交错位的咬合情况进行检测,定量分析研究其随时间的变化规律。2、使临床医生对全口义齿咬合情况的控制从依靠经验到定量化,为全口义齿的稳定性提供参考。方法:选择2013年9月至2014年12月来南昌大学附属口腔医院修复科,要求全口义齿修复的患者39名,记录患者的性别、年龄、佩戴全口义齿经历和牙槽嵴条件等信息,修复前对患者的牙槽嵴情况及戴用全口义齿(CD)前后面部的正侧位进行拍照。常规制作全口义齿,在Teetester数字化咬合分析仪指导下结合咬合纸印记进行调牙合,并对患者佩戴CD当日、2周、1.5月、3月进行咬合检测,记录患者的咬合接触时间(OT)、累积最大牙合力(Max force)和咬合力中心点(COF)左右向(COF-X)及前后向(COF-Y)位置,对检测结果进行重复测量设计资料的方差分析,分析其间的差异。结果:1、随着时间的推移,OT和COF-X值逐渐缩短,Max force和COF-Y值逐渐增加,差异均有统计学意义(P0.05)。两两比较结果显示,OT、Max force和COF-X之间的差异均有统计学意义(P0.05);COF-Y在佩戴当日与2周、1.5月和3个月相比,差异有统计学意义(P0.05),2周及以后,差异无统计学意义(P0.05)。2、有佩戴全口义齿经历的患者,OT和COF-X值较短,而Max force和COF-Y值较大。有无佩戴全口义齿经历的患者OT、Max force、COF-X之间的差异有统计学意义(P0.05);而COF-Y之间的差异无统计学意义(P0.05)。3、男性患者的OT、Max force、COF-X和COF-Y值均较女性患者大。不同性别的患者OT、Max force、COF-Y之间的差异无统计学意义(P0.05);而COF-X之间的差异有统计学意义(P0.05)。4、牙槽嵴2级患者,OT、COF-X值较其他类型牙槽嵴小,Max force值较其他类型者大;其他类型者随着牙槽嵴从1级~4级,OT、COF-X值逐渐增大,Max force值有减小趋势;COF-Y值变化趋势不甚明显。不同牙槽嵴条件的患者OT、COF-Y之间的差异无统计学意义(P0.05);而Max force、COF-X之间的差异有统计学意义(P0.05)。5、随着年龄的增长,OT值有增大趋势,Max force值逐渐减小,1.5月及3个月时COF-X值随年龄增加有增大趋势,COF-Y值变化趋势不甚明显。不同年龄的患者OT、COF-X之间的差异无统计学意义(P0.05);而Max force、COF-Y之间的差异有统计学意义(P0.05)。6、咀嚼功能满意度评估:随着佩戴全口义齿时间延长,患者对咀嚼功能的满意度逐渐增加,差异有统计能学意义(P0.05);有佩戴经历者和男性患者的咀嚼功能满意度较高,差异有统计学意义(P0.05);而不同的牙槽嵴条件和年龄组之间虽有差异,但无统计学意义(P0.05)。结论:1、随着佩戴义齿时间的延长,OT逐渐缩短,3个月时约为0.28s,早接触的可能性减少,咬合可以迅速达到稳定;Max force逐渐增加,3个月时平均为669.88±102.63N,咀嚼功能逐渐恢复;COF逐渐向中心移动,3个月时COF-X平均为2.94±1.19mm,COF-Y为28.38±1.80mm,咬合趋于平衡。2、有无佩戴经历、不同性别、牙槽嵴条件、年龄对患者的咬合情况影响不同,但OT与COF-X的变化趋势一致,可以将二者结合起来反映咬合的稳定性。3、数字化咬合分析仪可以量化患者的咬合情况,为全口义齿的稳定性提供参考。
[Abstract]:Objective: 1, through the TeeTester digital occlusion analyzer to detect the occlusion of the complete denture at the apex of the denture, quantitative analysis and study of the change law.2 with time, make the clinician control the bite of the complete denture from experience to quantitative, and provide reference for the stability of complete denture. Method: select 2013 9 From January to December 2014, 39 patients with full denture were required to be repaired in the Department of Dental Hospital of Nanchang University. The patient's sex, age, full denture experience and alveolar ridge condition were recorded. The patients' alveolar ridge and the positive side of the face before and after the full denture (CD) were photographed before and after the repair. The denture, under the guidance of the Teetester digital occlusal analyzer, was combined with the bite paper imprint, and the patient was wearing CD, 2 weeks, and 1.5 months, in March, and recorded the occlusion contact time (OT), the cumulative maximum resultant force (Max force) and the center point of the bite force (COF) to the position of (COF-X) and the front and back (COF-Y). Results the variance analysis of the design data was carried out. The results were as follows: 1, the value of OT and COF-X decreased with time, and the value of Max force and COF-Y increased gradually. The difference was statistically significant (P0.05). The results showed that the differences between OT, Max force and COF-X were statistically significant (P0.05); COF-Y was in Pei. Compared with 2 weeks, 1.5 months and 3 months, the difference was statistically significant (P0.05). 2 weeks and later, the difference was not statistically significant (P0.05).2, with the patients wearing full denture experience, OT and COF-X were shorter, and Max force and COF-Y were higher. There were statistical significance between OT, Max force, and COF-X. 0.05), but the difference between COF-Y was not statistically significant (P0.05).3, the OT, Max force, COF-X and COF-Y of the male patients were all larger than those of the female patients. The differences in OT, Max force and COF-Y were not statistically significant. The type of alveolar ridge was small and the value of Max force was larger than those of other types. With the alveolar ridge from grade 1 ~4, OT, COF-X, the value of Max force decreased and the COF-Y value was not very obvious. The difference between OT and COF-Y in patients with different alveolar ridge conditions was not statistically significant (P0.05); Max, there were statistical differences. P0.05.5, as the age increased, the OT value increased, the Max force decreased gradually, and the COF-X value increased with age at 1.5 and 3 months, and the trend of COF-Y value was not obvious. The difference between OT and COF-X at different ages was not statistically significant (P0.05), while Max force, there was a significant difference. (P0.05).6, the satisfaction assessment of masticatory function: with the prolongation of the full denture time, the patient's satisfaction with masticatory function increased gradually, the difference was statistically significant (P0.05); the masticatory function of the wearer and the male patients had higher satisfaction, and the difference was statistically significant (P0.05); the different alveolar ridge conditions and age groups were different. Although there were differences, there was no statistical significance (P0.05). Conclusion: 1, with the prolongation of the time of the denture, the OT gradually shortened and the 3 month was about 0.28s, the possibility of early contact decreased and the occlusal could quickly reach stability; Max force increased gradually, the average of 669.88 + 102.63N, the masticatory function gradually recovered, COF gradually moved to the center and 3 months C. The average OF-X is 2.94 + 1.19mm and COF-Y is 28.38 + 1.80mm. The occlusion tends to balance.2. There is no wear experience. The different sex, alveolar ridge condition and age have different influence on the occlusion, but the change trend of OT and COF-X is the same. The two can be combined to reflect the stability of the occlusion, and the digital occlusion analyzer can quantify the patient's bite. It provides a reference for the stability of full denture.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R783.6

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