A Three-Year Retrospective Study on Survival of Ceramic-Veneered Zirconia (Y-TZP) Fixed Dental Prostheses Performed in Private Practices
A Three-Year Retrospective Study on Survival of Ceramic-Veneered Zirconia (Y-TZP) Fixed Dental Prostheses Performed in Private Practices
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DOI：
10.1155/2017/9618306
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发表时间：
2017-01-01
影响因子：
2.1
通讯作者：
Svanborg, Per
中科院分区：
文献类型：
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作者：
Saarva, Veronika Norstrom;Bjerkstig, Goran;Svanborg, Per
目标.本回顾性研究的目的是评价陶瓷贴面氧化锆固定牙科修复体（FDP）的3年临床结果。方法.在2003年6月至2007年4月期间，在瑞典的三家私人诊所接受陶瓷饰面氧化锆FDP治疗的所有患者均纳入研究。对151例患者的病例记录进行了临床数据分析，共使用184个氧化锆FDP（692个单位）进行治疗。记录图表中记录的所有并发症，并与成功和生存的定义进行比较，使用Kaplan-Meier方法和考克斯回归模型进行统计分析。结果31例患者中共有32例FDP发生了某种类型的并发症（17.4%的FDP，20.5%的患者）。2例（1.1%）FDP发生芯部断裂。2例（1.1%）FDP或0.6%的装置显示胶合板断裂。10例（5.4%）FDP（1.6%的单位）发生内聚性贴面断裂。3年累积成功率和生存率（CSR）分别为82.3%和95.2%。结论.陶瓷贴面氧化锆是一种很有前途的替代金属陶瓷FDP，即使在后方地区。然而，应注意的是，金瓷修复体的生存率较高，牙科医生和患者都必须意识到并发症的风险。
Objectives. The aim of this retrospective study was to evaluate the three-year clinical outcome for ceramic-veneered zirconia fixed dental prostheses (FDPs). Methods. All patients who were treated with ceramic-veneered zirconia FDPs, in three private practices in Sweden, during the period June 2003 to April 2007 were included. Case records from 151 patients, treated with a total of 184 zirconia FDPs (692 units), were analysed for clinical data. All complications noted in the charts were registered and compared to definitions for success and survival and statistical analysis was performed using the Kaplan-Meier method and a Cox regression model. Results. In total, 32 FDPs in 31 patients experienced some type of complication (17.4% of FDPs, 20.5% of patients). Core fractures occurred in two (1.1%) FDPs. Two (1.1%) FDPs or 0.6% of units showed adhesive veneer fractures. Cohesive veneer fractures occurred in 10 (5.4%) FDPs (1.6% of units). The three-year cumulative success and survival rates (CSR) were 82.3% and 95.2%, respectively. Conclusions. Ceramic-veneered zirconia is a promising alternative to metal-ceramic FDPs, even in the posterior area. However, the higher survival rate of metal-ceramic FDPs should be noted and both dentists and patients must be aware of the risks of complications.