Ray H A, Trope M
Department of Endodontology, Temple Dental School, Philadelphia, PA 19140, USA.
Int Endod J. 1995 Jan;28(1):12-8. doi: 10.1111/j.1365-2591.1995.tb00150.x.
The purpose of this study was to evaluate the relationship of the quality of the coronal restoration and of the root canal obturation on the radiographic periapical status of endodontically treated teeth. Full-mouth radiographs from randomly selected new patient folders at Temple University Dental School were examined. The first 1010 endodontically treated teeth restored with a permanent restoration were evaluated independently by two examiners. Post and core type restorations were excluded. According to a predetermined radiographic standard set of criteria, the technical quality of the root filling of each tooth was scored as either good (GE) or poor (PE), and the quality of the coronal restoration similarly good (GR) or poor (PR). The apical one-third of the root and surrounding structures were then evaluated radiographically and the periradicular status categorized as (a) absence of periradicular inflammation (API) or (b) presence of periradicular inflammation (PPI). The rate of API for all endodontically treated teeth was 61.07%. GR resulted in significantly more API cases than GE, 80% versus 75.7%. PR resulted in significantly more PPI cases than PE, 30.2% versus 48.6%. The combination of GR and GE had the highest API rate of 91.4%, significantly higher than PR and PE with a API rate of 18.1%.
本研究的目的是评估冠修复质量和根管充填质量与根管治疗后牙齿根尖周影像学状况之间的关系。对从坦普尔大学牙科学院随机选取的新患者病历中的全口X光片进行了检查。由两名检查人员独立评估了1010颗接受了永久修复的根管治疗牙齿。排除桩核型修复体。根据预先确定的影像学标准评判标准，每颗牙齿的根管充填技术质量被评为良好（GE）或差（PE），冠修复质量同样评为良好（GR）或差（PR）。然后对牙根根尖三分之一及周围结构进行影像学评估，根尖周状况分为（a）无根尖周炎症（API）或（b）有根尖周炎症（PPI）。所有根管治疗牙齿的API率为61.07%。GR导致的API病例显著多于GE，分别为80%和75.7%。PR导致的PPI病例显著多于PE，分别为30.2%和48.6%。GR和GE组合的API率最高，为91.4%，显著高于PR和PE组合的18.1%。
