Lavanya Priya Kalambur Perumal, Gill Shruti, Banik Arindam, Marvaniya Jaydip, Marella Krishnaveni, Anusha Yalamanchi, Mustafa Mohammed
Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, AIMST University, Jalan Bedong-Semeling, Kedah, Malaysia.
Department of Prosthodontics, Terna Dental College, Nerul, Navi Mumbai, Maharashtra, India.
J Pharm Bioallied Sci. 2023 Jul;15(Suppl 1):S132-S136. doi: 10.4103/jpbs.jpbs_436_22. Epub 2023 Jul 5.
The best treatment for the deeply carious tooth that cannot be restored is by the root canal therapy. This method has saved many patients from the loss of tooth. The common practice is either to deliver a full crown or close the access cavity with restoration. Hence in this study, the clinical longevity of the routine practice is tested for by analyzing the fracture toughness and the survival of the teeth that were restored endodontically with various materials.
The hospital records were retrospectively evaluated from 2000 to 2010 for a decade. The demographics as well as the survival and the failure rates noted and compared for the various types of the restorations. The number of the walls of the teeth was also compared.
Thousand teeth were considered in the study. Less than 7% of teeth had coronal fractures. Of the 93% teeth that had survived, the most common restoration was Individual post (+ crown) followed by GIC, amalgams, and crowns. The mean survival of the crown+ bridge & gold restoration was highest. The mean survival was 10 ± 2 years for the restored teeth without any fractures at the coronal level. The failure was greatest for the GIC followed by amalgam, and the variations when compared with other restorations were significant. There was no significant difference for the number of the walls on the crown; however, the number of walls present was proportional to the survival rate.
The teeth that were covered with a crown were comparatively fracture resistant and had a better survival rate compared to other restorations. GIC showed highest fracture, and the post core with crown had the best survival. Restoration of the lost crown architecture and the reinforcement are the best methods that can be followed for the survivals.
对于无法修复的深龋牙齿，最佳治疗方法是根管治疗。这种方法使许多患者免于牙齿缺失。常见做法是要么安装全冠，要么用修复材料封闭进入腔。因此，在本研究中，通过分析用各种材料进行根管治疗后牙齿的断裂韧性和存活率，来测试常规做法的临床寿命。
对医院2000年至2010年这十年间的记录进行回顾性评估。记录并比较不同类型修复体的人口统计学数据以及存活率和失败率。还比较了牙齿的壁数。
本研究共纳入1000颗牙齿。不到7%的牙齿发生冠折。在存活的93%的牙齿中，最常见的修复方式是单独桩核（+冠），其次是玻璃离子粘固剂（GIC）、汞合金和全冠。冠桥和金修复体的平均存活率最高。冠部无骨折的修复牙齿的平均存活时间为10±2年。GIC的失败率最高，其次是汞合金，与其他修复体相比差异显著。冠部的壁数没有显著差异；然而，壁数与存活率成正比。
与其他修复体相比，戴冠的牙齿抗折性相对较高，存活率也更好。GIC显示出最高的骨折率，桩核冠的存活率最佳。恢复缺失的冠部结构和增强是提高存活率的最佳方法。
