Objective To analyze dynamically the occlusion data from different periods with Tee Tester after restoring the Kennedy Ⅱ patients’ teeth with implant support dentures, so as to provide a theoretical basis for clinical precision adjustable occlusion. Methods Twenty-six Kennedy Ⅱ patients after osseointegration were selected, restoring with CAD/CAM zirconia ceramic crown. TeeTester system was used to test the total occlusal force, bilateral differences of contact forces, and the position of center of force (COF) of implant support dentures on the same day of treatment ,one month, three months, six months and one year after restoration. Results There was a significant difference in the total occlusal force and the bilateral differences in contact forces between restoration before [(76.73±17.67)kg,(22.72±4.20)%] and after(P<0.01). There was also a significant difference between 6 months [(120.38±29.66)kg,(2.60±1.76)%] and 12 months [(125.27±28.13)kg,(2.00±1.16)%] after restoration along with the same day of restoration [(98.40±25.63)kg,(4.56±2.49)%] and one month after restoration[(100.09±26.66)kg,(4.60±2.38)%](P<0.01). A difference was also found in the total occlusal force and bilateral differences in contact forces between 12 months after restoration and 3 months after restoration(P<0.05). The bilateral differences in contact forces 3 months after restoration decreased compaired with that on the same day and one month after restoration(P<0.05). The COF also moved to the center area after restoration with implant support dentures. Conclusions For the Kennedy Ⅱ patients, the total occlusal force of implant support dentures achieves stability in 6 month after restoration through progressive load. Occlusion data from Tee tester is objective, accurate, displays a state of occlusal contact, and has a precise guide for clinical occlusal adjustment. Once finished, it provides a basis to ensure the long-term stability of plant restoration.
王晓玲, 王立军, 朱晓英, 王俭, 刘克礼. 种植义齿修复KennedyⅡ类牙列缺损的咬合力分析[J]. 武警医学, 2016, 27(9): 891-894.
WANG Xiaoling, WANG Lijun, ZHU Xiaoying, WANG Jian, and LIU Keli. Occlusion of implant support dentures for Kennedy Ⅱ patients with Tee Tester. Med. J. Chin. Peop. Armed Poli. Forc., 2016, 27(9): 891-894.
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