Department of Restorative Dentistry, University of Malaya, Kuala Lumpur, Malaysia.
Med Princ Pract. 2017;26(5):470-479. doi: 10.1159/000481864. Epub 2017 Oct 1.
The aim of this study was to determine the clinical outcomes and predictors of satisfaction in patients with lithium disilicate (LD) ceramic crowns.
Clinical outcomes were assessed in 47 patients with 88 LD crowns using modified United States Public Health Service (USPHS) evaluation criteria and survival rates. The questionnaire for predictors included 3 aspects: (a) sociodemographic characteristics, (b) oral health habits (tooth brushing frequency, flossing frequency, and dental visits), and (c) satisfaction of the restorations (aesthetics, function, fit, cleansability, and chewing ability of the crowns, and overall satisfaction). Frequency distributions were computed using univariate and multivariate analysis. The Student t test and analysis of variance (ANOVA) were used to compare means across variables. Correlation analysis was done to assess the association between continuous variables.
The age of crowns was 34.7 ± 9.7 months. The survival rate was 96.6% at 35.9 ± 9.2 months. There was a significant association between successful crown function and oral hygiene measures: tooth brushing (p˂ 0.001), dental visits (p = 0.006), and flossing (p = 0.009). A strong negative correlation was observed between aesthetic satisfaction (r = -0.717, p˂ 0.001) and chewing ability (r = -0.639, p˂ 0.001) with crown age. The linear regression model was significant for all predictors (p < 0.05) except overall satisfaction (p > 0.05).
The LD crowns had long survival rates of 96.6% up to 35.9 ± 9.2 months and provided satisfactory clinical performance (low risk of failure). Oral hygiene habits such as brushing, flossing, and regular dental visits influenced patient satisfaction with LD crowns.
本研究旨在确定二硅酸锂（LD）陶瓷冠患者的临床结果和满意度的预测因素。
使用改良的美国公共卫生服务（USPHS）评估标准和生存率评估了 47 名患者的 88 个 LD 冠的临床结果。预测因素的问卷包括 3 个方面：（a）社会人口统计学特征，（b）口腔健康习惯（刷牙频率、使用牙线频率和看牙医的频率），（c）修复体的满意度（冠的美观、功能、适配性、清洁度和咀嚼能力以及总体满意度）。使用单变量和多变量分析计算频率分布。使用学生 t 检验和方差分析（ANOVA）比较变量之间的平均值。进行相关性分析以评估连续变量之间的关联。
冠的年龄为 34.7±9.7 个月。在 35.9±9.2 个月时，生存率为 96.6%。成功的冠功能与口腔卫生措施之间存在显著关联：刷牙（p＜0.001）、看牙医（p=0.006）和使用牙线（p=0.009）。美学满意度（r=-0.717，p＜0.001）和咀嚼能力（r=-0.639，p＜0.001）与冠龄之间存在强烈的负相关关系。除了总体满意度（p＞0.05）外，所有预测因素的线性回归模型均具有统计学意义（p＜0.05）。
LD 冠的生存率高达 96.6%，长达 35.9±9.2 个月，临床效果令人满意（失败风险低）。刷牙、使用牙线和定期看牙医等口腔卫生习惯影响了患者对 LD 冠的满意度。
