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目的评价后牙区种植义齿不同材料冠修复的5年临床效果。方法选取2006年6月至2011年6月中国医科大学口腔医学院种植中心收治的603例因上、下后牙缺失接受种植固位修复的患者,植入种植体1135枚并完成1159颗冠修复。其中氧化锆全瓷冠修复135颗,金合金烤瓷冠修复396颗,银钯合金烤瓷冠修复363颗,金合金聚合瓷冠修复131颗,银钯合金聚合瓷冠修复134颗。随访6～66个月,观察方法为临床检查、X线片、患者满意度调查。应用SPSS13.0软件包对不同材料冠修复产生的修复后并发症情况进行χ2检验比较,同时参照Davarpanah等提出的修复体失败评价标准计算后牙区种植修复体的累积成功率。结果不同材料冠修复产生的修复后并发症情况差异无统计学意义(χ2=4.885,P=0.299),后牙区种植修复体的5年累积成功率为97.2%,同时患者对不同材料制作的人工牙冠的满意度均高于95%。结论后牙区种植义齿不同材料冠修复均能取得较好的临床效果,长期效果有待于进一步观察。
Objective To evaluate the 5-year clinical effect of implant restoration of implant denture in posterior teeth. Methods From June 2006 to June 2011, 603 cases of implants fixed due to upper and lower posterior teeth missing from the Department of Stomatology, China Medical University Stomatology Center were implanted with 1135 implants and 1,159 crowns . Among them, 135 were restored with zirconium porcelain crowns, 396 with gold-ceramic porcelain crowns, 363 with silver-palladium alloy porcelain crowns, 131 with polymerized porcelain crowns and 134 with silver-palladium alloy porcelain crowns. Follow-up 6 to 66 months, the observation method for clinical examination, X-ray film, patient satisfaction survey. SPSS 13.0 software package was used to compare the postoperative complications caused by different materials crown repair. The cumulative success rate of implant prosthesis was calculated according to Davarpanah et al. Results There was no significant difference in the complication rates between the two groups (χ2 = 4.885, P = 0.299). The five-year cumulative success rate of implant restoration in posterior teeth was 97.2%. At the same time, Satisfaction of artificial crowns were higher than 95%. Conclusions All kinds of prosthetic dental prostheses in the posterior denture can achieve better clinical results, and the long-term effect needs to be further observed.