Avoaka-Boni Marie-Chantal, Djolé Stéphane X, Désiré Kaboré Wendpoulomdé Aimé, D Gnagne-Koffi Yolande N, E Koffi Alexandra F
Department of Conservative Dentistry and Endodontics, University Felix Houphouët-Boigny, Abidjan, Côte d'Ivoire.
Research Center of Health Sciences (UFR/SDS), University Ouaga I Professor Joseph KI-ZERBO, Ouagadougou, Burkina Faso, West Africa, Burkina Faso.
J Conserv Dent. 2019 May-Jun;22(3):270-274. doi: 10.4103/JCD.JCD_541_18.
This study aimed to itemize the causes for the failure of direct coronal restorations (DCRs) according to the practitioners of Côte d'Ivoire in order to provide recommendations for good practice.
A descriptive, self-reporting, prospective survey was carried out among 109 dental surgeons (DSs) in the town of Abidjan based on 587 randomly selected practitioners supplied by the National Board of the Order.
The results show that 98.10% of the surveyed DSs had previously encountered cases of failure. Fracturing of the restoration, which is the basis for the hiatus, is the main cause of failure according to 51.40% of the surveyed practitioners, followed by pain "under the restoration" cited by 26.20% of them. Failure occurs within 6 months (30.85% of those surveyed), after 5 years (9.6% of those surveyed) for restorations with composite or glass ionomer cement (GIC), while for DCRs with amalgam, failure occurs within 6 months (28.70%), after 5 years (16%) and beyond 10 years (3.20%).
The practitioners often encountered failures of DCRs, with fracture of the restoration as the cause. Dental amalgam appears to have a greater longevity than adhesive restorations. Faced with a failure, they more often opted for a replacement of the DCRs rather than a repair.
本研究旨在根据科特迪瓦的从业者列出直接冠修复（DCR）失败的原因，以便为良好实践提供建议。
基于国家秩序委员会提供的587名随机选择的从业者，对阿比让市的109名牙科外科医生（DS）进行了一项描述性、自我报告的前瞻性调查。
结果显示，98.10%的受访DS此前曾遇到失败病例。修复体断裂是裂隙形成的基础，51.40%的受访从业者认为这是失败的主要原因，其次是26.20%的人提到的“修复体下疼痛”。对于复合树脂或玻璃离子水门汀（GIC）修复体，失败发生在6个月内（30.85%的受访者）、5年后（9.6%的受访者）；而对于汞合金直接冠修复，失败发生在6个月内（28.70%）、5年后（16%）和10年以上（3.20%）。
从业者经常遇到直接冠修复失败的情况，修复体断裂是原因。牙科汞合金似乎比粘结修复体具有更长的使用寿命。面对失败，他们更常选择更换直接冠修复体而不是进行修复。
