Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years.
Treatment history of teeth in relation to the longevity of the teeth and their restorations: outcomes of teeth treated and maintained for 15 years.
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与牙齿寿命及其修复体相关的牙齿治疗史：牙齿治疗和维护 15 年的结果。
DOI：
10.1016/j.prosdent.2007.01.007
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Nunn,MarthaE
中科院分区：
文献类型：
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作者：
Miyamoto,Takanari;Morgano,StevenM;Kumagai,Takashi;Jones,JudithA;Nunn,MarthaE
问题陈述关于牙齿存活率与其治疗历史有关的临床数据有限。本研究评估了牙齿失败与其治疗历史的关系。材料和方法从日本山形的1家私人诊所收集了148名完全依从性患者的3071颗牙齿的纵向数据。随访时间15~23年，平均19.2年(SD 2.4)。在这项研究中，每颗牙齿及其修复体都由一位作者在每次维护访问时进行评估。治疗历史分为：(1)健康未修复牙(SUT)；(2)1表面修复(RT1)；(3)2表面修复(RT2)；(4)3表面修复(RT3)；(5)4+表面修复(RT4)；(6)全冠(CCT)；(7)基牙固定部分修复体(AFT)；(8)基牙可摘局部修复体(APDT)；(9)根管治疗(RCT)。在这项研究中，评估了三种失败模式：(1)修复失败(继发性龋齿和/或骨折)，(2)拔除，(3)任何失败(修复失败或拔除)。多因素生存分析用于确定治疗历史对失败的影响(α=.05)。结果采用多表面修复体的患者失败的发生率最高(P<；.001)。对于继发性龋病，不同的治疗历史也有相似的风险。对于导致拔牙失败的牙齿，唯一增加风险的牙齿是可移除部分牙修复体的基牙(相对风险=5.5)(P=0.008)。结论数据显示，修复牙比未修复牙有更高的失败发生率。与复杂多面修复的牙齿相比，固定部分牙修复体的全冠和基牙修复失败较少。可摘局部义齿基牙的失败率最高。
STATEMENT OF PROBLEMLimited clinical data exist on the survival of teeth relative to their treatment history.PURPOSEThis study evaluated failure of teeth relative to their treatment history.MATERIAL AND METHODSLongitudinal data were collected for 3071 teeth from 148 fully compliant patients from 1 private practice in Yamagata, Japan. Follow-up times ranged from 15 to 23 years, with a mean of 19.2 years (SD 2.4). In this study, every tooth and its restoration were evaluated by one of the authors at the time of each maintenance visit. Treatment history of the teeth was categorized at baseline as follows: (1) sound, unrestored tooth (SUT); (2) 1-surface restoration (RT1); (3) 2-surface restoration (RT2); (4) 3-surface restoration (RT3); (5) 4+-surface restoration (RT4); (6) complete crown (CCT); (7) abutment for fixed partial dental prosthesis (AFT); (8) abutment for removable partial dental prosthesis (APDT); and (9) root canal treatment (RCT). Three types of failure modes were evaluated in this study: (1) restorative failure (secondary caries and/or fracture), (2) extraction, and (3) any failure (restorative failure or extraction). Multivariate survival analysis was used to determine the impact of the treatment history on failure (α=.05).RESULTSTeeth with multi-surface restorations experienced the highest incidence of any failure (P<.001). For secondary caries, similar risks were noted for the different treatment histories. For failures resulting in extraction, the only teeth with an increased risk were abutments for removable partial dental prostheses (relative risk=5.5) (P=.008).CONCLUSIONSThe data demonstrated that restored teeth experienced a higher incidence of failure compared with unrestored teeth. Complete crowns and abutments for fixed partial dental prostheses had fewer restorative failures when compared with teeth with complex multisurface restorations. Removable partial denture abutments experienced the highest failure rate.