CAJ | 학술논문

目的：研究下颌球帽附着体固位覆盖义齿(COD)及全口义齿(CD)修复后2~3年咬合接触特征及差异。方法采用T-ScanⅡ咬合分析仪对戴用2~3年CD及COD修复患者(各12例)进行体内咬合分布特征及力升高时间的测定。记录患者义齿左右侧咬合面积不对称指数、咬合力中心(X,Y)值、咬合力前后向分布比率及力升高时间。结果(1)CD组、COD组左右侧咬合面积不对称指数、咬合力中心X值,差异无统计学意义(P>0.05)；(2)COD组咬合中心前移,差异有统计学意义(P<0.05)；(3)力升高时间CD组0.28 s,COD组延长为0.59 s,差异有统计学意义(P<0.05)。结论正中咬合时,CD戴用2~3年咬合分布、力升高时间近似正常,COD咬合中心向基牙区偏移,力升高时间延长。
목적：연구하합구모부착체고위복개의치(COD)급전구의치(CD)수복후2~3년교합접촉특정급차이。방법채용T-ScanⅡ교합분석의대대용2~3년CD급COD수복환자(각12례)진행체내교합분포특정급력승고시간적측정。기록환자의치좌우측교합면적불대칭지수、교합력중심(X,Y)치、교합력전후향분포비솔급력승고시간。결과(1)CD조、COD조좌우측교합면적불대칭지수、교합력중심X치,차이무통계학의의(P>0.05)；(2)COD조교합중심전이,차이유통계학의의(P<0.05)；(3)력승고시간CD조0.28 s,COD조연장위0.59 s,차이유통계학의의(P<0.05)。결론정중교합시,CD대용2~3년교합분포、력승고시간근사정상,COD교합중심향기아구편이,력승고시간연장。
Objective To investigate the occlusal characteristics of complete overdenture (COD) retained by stud attachments in mandibular and complete denture(CD). Methods Twenty-four subjects were rehabilitated with CD and COD and wore the dentures 2 to 3 years. Each study group was composed of 12 subjects. An occlusal analysis, using the T-ScanⅡ System, was performed to assess the following occlusal parameters: the distribution of occlusal contacts and the occlusion time. Results (1)For AOA and COF X there are no statistically significant difference between CD and COD (P>0.05). (2)The COF Y of COD move forward. There are significant differences between the two groups. (3)OT in CD group is 0.28 s, OT of COD group is 0.59 s. There are significant differences between the two groups (P<0.05). Conclusion CD and COD achieve bilaterally balanced in ICO. In COD group, center of occlusal force moves forward, while the occlusion time increased significantly.