Ojeda G Durán, Naves L Z, Oosterhaven A, Kleinsman R, Bäumer-König A, Körner G, Wendler M, Gresnigt Mmm
University Medical Center Groningen, Department of Restorative Dentistry and Biomaterials, Center for Dentistry and Oral Hygiene, Groningen, University of Groningen, The Netherlands.
Facultad de Ciencias de la Salud, Universidad Arturo Prat, Iquique, Chile.
J Prosthodont Res. 2023 Apr 12;67(2):206-213. doi: 10.2186/jpr.JPR_D_22_00079. Epub 2022 Jul 5.
Purpose This retrospective study aimed to evaluate the survival and success rates of ceramic partial laminate veneers. Scanning electron microscopy was used to evaluate fractures and marginal defects.Methods In total, 31 patients received 79 partial laminate veneers on the maxillary anterior teeth. After adhesive luting, restorations were evaluated by calibrated clinicians for up to eight years using modified United States Public Health Service (USPHS) criteria. In addition, epoxy resin replicas were fabricated from silicone impressions and analyzed using scanning electron microscopy. Survival analyses were performed using the Kaplan-Meier and log-rank tests (α = 0.05). Success was analyzed in percentages by comparing the baseline and last follow-up.Results The cumulative survival rates were 100% after 1 year; 95.9% (SE 2.8%) after 5 years; and 61.4% (SE 25.3%) after 8 years. No significant differences (P > 0.05) were observed between functional and non-functional restorations. Changes in the USPHS criteria evaluation were only observed for adaptation: 12.5% (SE 4.7%), marginal discoloration: 4.2% (SE 3.0%), color match: 4.2% (SE 3.0%), and fractures: 16.7% (SE 5.3%). Scanning electron microscopy evaluations revealed undetected initial cracks and deficiencies in the restorations.Conclusions Partial laminate veneers displayed good survival rates during the long-term follow-up. The main problems observed were related to the quality of the margins, color mismatch, and restoration integrity. However, in most cases, restoration replacement was not required.
目的 本回顾性研究旨在评估陶瓷部分层压贴面的生存率和成功率。使用扫描电子显微镜评估骨折和边缘缺损情况。
方法 共有31例患者在上颌前牙接受了79颗部分层压贴面修复。粘结固位后，由经过校准的临床医生使用改良的美国公共卫生服务（USPHS）标准对修复体进行长达八年的评估。此外，从硅橡胶印模制作环氧树脂复制品，并使用扫描电子显微镜进行分析。使用Kaplan-Meier和对数秩检验（α = 0.05）进行生存分析。通过比较基线和最后一次随访以百分比形式分析成功率。
结果 1年后累积生存率为100%；5年后为95.9%（标准误2.8%）；8年后为61.4%（标准误25.3%）。功能性和非功能性修复体之间未观察到显著差异（P > 0.05）。仅在适应性方面观察到USPHS标准评估的变化：12.5%（标准误4.7%），边缘变色：4.2%（标准误3.0%），颜色匹配：4.2%（标准误3.0%），以及骨折：16.7%（标准误5.3%）。扫描电子显微镜评估揭示了修复体中未检测到的初始裂纹和缺陷。
结论 在长期随访中，部分层压贴面显示出良好的生存率。观察到的主要问题与边缘质量、颜色不匹配和修复体完整性有关。然而，在大多数情况下，不需要更换修复体。
