Department of Oral Implantology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
J Prosthodont. 2019 Jan;28(1):e51-e58. doi: 10.1111/jopr.12659. Epub 2017 Nov 17.
To test the validity and reliability of a newly developed Implant Restoration Esthetic Index (IREI) and to compare esthetic outcomes reported by patients and professionals.
Ten graduate students and 10 prosthodontists assessed esthetic outcomes of 27 single-tooth implants with the IREI. Six peri-implant soft tissue parameters were measured using visual analog scales: mesial papilla presence, distal papilla presence, gingival trigone, soft tissue curvature, alveolar process deficiency, and soft tissue color and texture, as well as the six crown parameters: crown contour, crown position, crown labial convexity, crown characterization, crown color and translucency, and abutment visibility. The validity was tested based on Pearson's correlation. The internal consistency reliability was analyzed by Cronbach's alpha. Interclass correlation coefficients (ICC) were calculated to express the test-retest reliability and the inter-rater reliability. The correlations between patient and professional evaluations were analyzed by Pearson's correlation.
The IREI demonstrated significant correlation (p < 0.05) to the pink esthetic score and white esthetic score (PES/WES). The internal consistency reliability showed a Cronbach's Alpha of 0.830. The test-retest reliability was excellent in both the graduate student group and the prosthodontist group, with ICCs of 0.961 and 0.952, respectively (p < 0.05). The inter-rater reliability was acceptable, with ICCs of 0.649 and 0.667, respectively (p < 0.05). Low correlation coefficients were found between patient and professional evaluations.
The results of this study indicated that the IREI was considered a valid and reliable index involving sufficient parameters for professional esthetic evaluation of single-tooth implant restorations. The patient-reported esthetic outcomes had poor or no significant correlation to professional-reported outcomes.
测试新开发的种植体修复美学指数（IREI）的有效性和可靠性，并比较患者和专业人员报告的美学结果。
10 名研究生和 10 名修复医生使用 IREI 评估了 27 颗单牙种植体的美学效果。使用视觉模拟量表测量了 6 个种植体周围软组织参数：近中乳头存在、远中乳头存在、龈三角、软组织曲线、牙槽骨缺损和软组织颜色质地，以及 6 个牙冠参数：牙冠轮廓、牙冠位置、牙冠唇面凸度、牙冠特征、牙冠颜色和半透明度以及基台可见度。基于 Pearson 相关系数测试了有效性。采用 Cronbach's alpha 分析了内部一致性可靠性。计算了组内相关系数（ICC）来表示测试-重测信度和组内信度。通过 Pearson 相关分析了患者和专业人员评估之间的相关性。
IREI 与粉红色美学评分（PES）和白色美学评分（WES）呈显著相关性（p < 0.05）。内部一致性可靠性的 Cronbach's Alpha 为 0.830。研究生组和修复医生组的测试-重测信度均为优秀，ICC 分别为 0.961 和 0.952（p < 0.05）。组内信度可接受，ICC 分别为 0.649 和 0.667（p < 0.05）。患者和专业人员评估之间的相关性系数较低。
本研究结果表明，IREI 被认为是一种有效的、可靠的指数，包含足够的参数用于单牙种植修复的专业美学评估。患者报告的美学结果与专业人员报告的结果相关性差或无显著相关性。
