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Occlusion of implant support dentures for Kennedy Ⅱ patients with Tee Tester |
WANG Xiaoling, WANG Lijun, ZHU Xiaoying, WANG Jian, and LIU Keli |
Department of Stomatology, the General Hospital of Chinese People’s Armed Police Force, Beijing 100039, China |
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Abstract 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.
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Received: 20 May 2016
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[1] |
王林红,樊立杰,谷志远. 种植义齿的咬合接触设计与临床应用[J]. 中国口腔种植学杂志,2009, 11(4):143-146.
|
[2] |
Mizui M, Nabeshima F, Tosa J, et al. Quantitative analysis of occlusal balance in intercuspal position using the T-Scan system [J]. Int J Prosthodont, 1994,7(1):62-71.
|
[3] |
Curtis D A, Sharma A, Finzen F C, et al. Occlusal considerations for implant restorations in the partially edentulous patient [J]. J Calif Dent Assoc, 2000, 28(10):771-779.
|
[4] |
Hoshaw S J, Brunski J B, Cochran G V B. Mechanical loading of Branemark implant affects interfacial bone modelling and remodeling [J]. Int J Oral Maxillofac Implants, 1994, 9: 345-360
|
[5] |
Miyata T. The influence of controlled occlusal overload on peri-implant tissue: a histologic study in monkeys[J]. Int J Oral Maxillofac Implants, 1998, 13(5): 677-683.
|
[6] |
Miyata T. The influence of controlled occlusal overload on peri-implant tissue. Part3: a histologic study in monkeys[J]. Int J Oral Maxillofac Implants, 2000, 15(3): 425-431.
|
[7] |
宫 苹.种植义齿修复设计[M]. 成都:四川大学出版社,2004:58-60.
|
[8] |
Kim Y, Oh T J, Misch C E, et al. Occlusal considerations in implant therapy: clinical guidelines with biomechanical rationale [J]. Clin Oral Implant Res, 2005, 16(1): 26-35.
|
[9] |
Steves C J. Computerized occlusal implant management with the T-Scan Ⅱ System: a case report[J]. Dont Today, 2006, 25(2): 88-91.
|
|
|
|