Universidad de Murcia, Murcia, Spain.
QMUL, Barts & The London School of Dentistry, London, United Kingdom.
J Dent. 2024 Jul;146:105067. doi: 10.1016/j.jdent.2024.105067. Epub 2024 May 17.
The aim of this study is to compare the aesthetic outcomes of metal porcelain (C), lithium disilicate (T1) and porcelain-layered zirconium (T2) immediate implant-supported single crowns in the anterior maxilla.
Forty-five immediate dental implants were provided for 45 patients that required the extraction of a single tooth in the anterior maxilla. A temporary prosthesis was provided at 8 weeks after placement followed by the final prosthesis at 24 weeks post-implantation. The patients were randomly allocated into 3 groups: 15 patients in the control group (C) received a metal-porcelain restoration, 15 patients (T1) received a lithium disilicate (LD) restoration and 15 patients (T2) received a porcelain-layered, zirconium (Z) restoration. Pink (PES) and White (WES) esthetic scores, radiographic bone levels, periodontal parameters and patient's esthetic satisfaction using a visual analogue scale (VAS) were evaluated at the time of final restoration placement (t0) and at 12-months post-loading (t12).
No implants were lost during the duration of this study. Statistically significant higher WES and VAS scores (p < 0.05) were recorded in T1 vs C and T1 vs T2 groups respectively. Similar radiographic bone levels and periodontal parameters were recorded in all groups.
Within the limitations of this study, it was concluded that T1 restorations provided better WES outcomes when compared to C restorations and better VAS scores when compared to T2 restorations at 12 months post-loading. Besides, different material interphases did not have an impact in PES, bone levels or periodontal parameters.
There is limited data comparing aesthetic outcomes of implant supported single crowns made of different ceramic materials based on accepted and comparable indexes and the evaluation of the patient's perspective regarding these aesthetic outcomes.
本研究旨在比较金属烤瓷（C）、锂硅瓷（T1）和氧化锆分层瓷（T2）在前上颌即刻种植单冠修复中的美学效果。
45 名患者因在前上颌需要拔除单个牙齿而接受了 45 个即刻种植体。种植体植入 8 周后，为患者提供临时修复体，24 周后，再提供最终修复体。将患者随机分为 3 组：15 名患者（C 组）接受金属烤瓷修复，15 名患者（T1 组）接受锂硅瓷（LD）修复，15 名患者（T2 组）接受氧化锆分层瓷（Z）修复。在最终修复体放置时（t0）和 12 个月负载后（t12），采用粉色美学评分（PES）、白色美学评分（WES）、影像学骨水平、牙周参数和患者的视觉模拟评分（VAS）评估美学满意度。
在本研究期间，没有种植体丢失。T1 组的 WES 和 VAS 评分明显高于 C 组和 T1 组（p<0.05）。所有组的影像学骨水平和牙周参数相似。
在本研究的限制内，得出的结论是，与 C 修复体相比，T1 修复体在 12 个月负载后提供了更好的 WES 结果，与 T2 修复体相比，T1 修复体提供了更好的 VAS 评分。此外，不同的材料界面在 PES、骨水平或牙周参数方面没有影响。
根据可接受和可比的指数比较不同陶瓷材料制成的种植体支持的单冠修复的美学效果的数据有限，以及评估患者对这些美学效果的看法。
