Abstract：
OBJECTIVE: To validate the reproducibility and inter/intra-observer variability of the Pink Esthetic Score/White Esthetic Score (PES/WES) of single tooth-supported prostheses in the maxillary esthetic zone (13-23).
METHODS: Forty-five patients were randomly assigned to one of the three treatment options (15 patients per group) receiving each one a different crown type: Porcelain fused to metal (PFM), monolithic zirconia, and lithium disilicate. Eight observers from each of four different specialties (Prosthodontists, Orthodontists, Periodontists, and Oral Surgeons) were recruited and assessed twice and four weeks apart (i.e., T1 and T2) 45 photographs of the single tooth-supported prosthesis using PES/WES and compared them with contralateral teeth.
RESULTS: According to the ANOVA and post hoc tests, the zirconia crown type obtained the highest mean score by all observers, with a mean value of 16.70 ± 2.94. The prosthodontists and oral surgeons assigned the lowest mean score to PFM crowns, 13.03 ± 3.47 and 13.80 ± 3.17, respectively. Notably, the prosthodontists awarded the highest scores, specifically 17.50 ± 2.81 for the zirconia crowns. Intraobserver agreement was calculated utilizing the paired t-test. Pairwise comparisons between observers of different specialties revealed significant intraobserver agreement. Interclass correlation coefficient (ICC) scores were statistically significant among four specialties. No difference was detected concerning the interobserver agreement.
CONCLUSIONS: The PES/WES index remains consistent across various observers from different specializations, yielding uniform results in the overall esthetic evaluation. Consequently, in light of the presented preliminary positive results, its use might also be considered for the esthetic assessment of single-tooth-supported prostheses.
CONCLUSIONS: The PES/WES index may be employed clinically to evaluate single tooth-supported prostheses as it emerged as a reproducible esthetic scoring system.
METHODS: Forty-five patients were randomly assigned to one of the three treatment options (15 patients per group) receiving each one a different crown type: Porcelain fused to metal (PFM), monolithic zirconia, and lithium disilicate. Eight observers from each of four different specialties (Prosthodontists, Orthodontists, Periodontists, and Oral Surgeons) were recruited and assessed twice and four weeks apart (i.e., T1 and T2) 45 photographs of the single tooth-supported prosthesis using PES/WES and compared them with contralateral teeth.
RESULTS: According to the ANOVA and post hoc tests, the zirconia crown type obtained the highest mean score by all observers, with a mean value of 16.70 ± 2.94. The prosthodontists and oral surgeons assigned the lowest mean score to PFM crowns, 13.03 ± 3.47 and 13.80 ± 3.17, respectively. Notably, the prosthodontists awarded the highest scores, specifically 17.50 ± 2.81 for the zirconia crowns. Intraobserver agreement was calculated utilizing the paired t-test. Pairwise comparisons between observers of different specialties revealed significant intraobserver agreement. Interclass correlation coefficient (ICC) scores were statistically significant among four specialties. No difference was detected concerning the interobserver agreement.
CONCLUSIONS: The PES/WES index remains consistent across various observers from different specializations, yielding uniform results in the overall esthetic evaluation. Consequently, in light of the presented preliminary positive results, its use might also be considered for the esthetic assessment of single-tooth-supported prostheses.
CONCLUSIONS: The PES/WES index may be employed clinically to evaluate single tooth-supported prostheses as it emerged as a reproducible esthetic scoring system.
摘要：
目的：验证上颌美学区单齿支撑假体的粉红美学评分/白色美学评分（PES/WES）的可重复性和观察者间/观察者内的变异性（13-23）。
方法：将45名患者随机分配到三种治疗方案中的一种（每组15名患者），每种治疗方案都有不同的牙冠类型：融合金属瓷（PFM），整体氧化锆,和二硅酸锂。来自四个不同专业的八个观察员(修复牙，正畸医生,牙周病医生,和口腔外科医生)被招募并评估两次和四周(即，T1和T2）45张使用PES/WES的单颗牙齿支撑假体的照片，并将其与对侧牙齿进行了比较。
结果：根据方差分析和事后检验，氧化锆冠类型获得了所有观察者的最高平均得分，平均值为16.70±2.94。修复医生和口腔外科医生将PFM冠的平均得分最低，分别为13.03±3.47和13.80±3.17。值得注意的是,修复医生获得了最高分，氧化锆冠具体为17.50±2.81。利用配对t检验计算观察者间一致性。不同专业的观察者之间的成对比较显示出观察者之间的显着共识。四个专业之间的类间相关系数（ICC）得分具有统计学意义。关于观察员之间的协议没有发现任何差异。
结论：PES/WES指数在不同专业的不同观察者之间保持一致，在整体美学评价中产生统一的结果。因此,鉴于提出的初步积极结果，也可以考虑将其用于单齿支撑假体的美学评估。
结论：PES/WES指数可用于临床评估单颗牙齿支撑的假体，因为它是一种可重复的美学评分系统。
方法：将45名患者随机分配到三种治疗方案中的一种（每组15名患者），每种治疗方案都有不同的牙冠类型：融合金属瓷（PFM），整体氧化锆,和二硅酸锂。来自四个不同专业的八个观察员(修复牙，正畸医生,牙周病医生,和口腔外科医生)被招募并评估两次和四周(即，T1和T2）45张使用PES/WES的单颗牙齿支撑假体的照片，并将其与对侧牙齿进行了比较。
结果：根据方差分析和事后检验，氧化锆冠类型获得了所有观察者的最高平均得分，平均值为16.70±2.94。修复医生和口腔外科医生将PFM冠的平均得分最低，分别为13.03±3.47和13.80±3.17。值得注意的是,修复医生获得了最高分，氧化锆冠具体为17.50±2.81。利用配对t检验计算观察者间一致性。不同专业的观察者之间的成对比较显示出观察者之间的显着共识。四个专业之间的类间相关系数（ICC）得分具有统计学意义。关于观察员之间的协议没有发现任何差异。
结论：PES/WES指数在不同专业的不同观察者之间保持一致，在整体美学评价中产生统一的结果。因此,鉴于提出的初步积极结果，也可以考虑将其用于单齿支撑假体的美学评估。
结论：PES/WES指数可用于临床评估单颗牙齿支撑的假体，因为它是一种可重复的美学评分系统。
