Coca Ion, Lotzmann Ulrich, Prisender Kriszti
Philipps-Universität, Georg-Voigt-Str. 3, D-35037 Marburg, Germany.
Eur J Prosthodont Restor Dent. 2002 Jun;10(2):73-8.
This study reports on 99 magnetic retention units (root caps and minimagnets) were used to stabilise overdentures in 66 patients. Tooth mobility, root caries, periodontal health, denture function, integrity of root caps and minimagnets were evaluated 4-12 years after insertion. The results showed a marked reduction in root mobility (increased stability in 86% of the roots), but extraction of 8% of the roots. After 116 months the survival rate calculated according to Kaplan and Meier was 79% for roots, 90% for caps and 77% for minimagnets. Nine per cent of the roots demonstrated caries and 10% discoloration of the root caps.
本研究报告了使用99个磁性固位装置（牙根帽和微型磁体）来稳定66例患者的覆盖义齿。在植入后4至12年对牙齿松动度、根龋、牙周健康状况、义齿功能、牙根帽和微型磁体的完整性进行了评估。结果显示牙根松动度显著降低（86%的牙根稳定性增加），但有8%的牙根被拔除。116个月后，根据Kaplan和Meier法计算的牙根存活率为79%，牙根帽为90%，微型磁体为77%。9%的牙根出现龋坏，10%的牙根帽出现变色。
