CBCT评价过渡性义齿在全口义齿重新修复中的应用效果

CBCT Evaluation of the Application Effect of Transitional Dentures in the Restoration of Complete Dentures

本研究探讨锥形束CT技术(CBCT)评价过渡性义齿在全口义齿重新修复中的应用价值。选择107例全口义齿重新修复患者,根据修复效果分为修复失败组(n=26)与修复成功组(n=81)。修复前后均接受CBCT检查,对比两组佩戴新旧义齿颞下颌关节前间隙、中间隙、后间隙变化值。结果显示,修复失败组佩戴新旧义齿颞下颌关节前间隙、中间隙、后间隙变化值大于修复成功组(P<0.05);佩戴新旧义齿颞下颌关节前间隙、中间隙、后间隙变化值与颌位关系指数、咀嚼效率、美学评分、舒适度变化值呈负相关(P<0.05);Logistic单因素、多因素回归分析表明,颞下颌关节前间隙、中间隙、后间隙变化值与全口义齿重新修复效果独立相关(P<0.05);颞下颌关节前间隙、中间隙、后间隙变化值联合评估修复效果的AUC为0.905,敏感度为80.77%,特异度为88.89%,明显优于各指标单独评估。CBCT检查指标可有效评估过渡性义齿在全口义齿重新修复中的应用效果,为临床提供可靠的参考依据。

The application value of cone beam CT technology(CBCT)in evaluating transitional dentures in complete denture restoration was explored in this study.107 patients with complete denture restoration were selected.Transitional denture restorations were divided into restoration failure group(n=26)and restoration success group(n=81)according to restoration effect.CBCT examination was performed before and after the repair,and the changes in the anterior space,middle space,and posterior space of the temporomandibular joint between the two groups were compared.The results showed that the changes in the anterior space,middle space and posterior space of the temporomandibular joint with the new and old dentures in the repair failure group were greater than those in the repair success group(P<0.05).The changes of the anterior space,middle space,and posterior space of the temporomandibular joint with the new and old dentures were negatively correlated with the jaw position relationship index,chewing efficiency,aesthetic score,and comfort(P<0.05).Logistic univariate and multivariate regression analysis showed that the changes in the anterior space,middle space and posterior space of temporomandibular joint were independently correlated with the restoration effect of complete denture(P<0.05).The AUC of the combined evaluation of the changes in the anterior space,middle space and posterior space of the temporomandibular joint was 0.905,the sensitivity was 80.77%,and the specificity was 88.89%,which was significantly better than the individual evaluation of each index.CBCT examination indicators can effectively evaluate the application effect of transitional dentures in the restoration of complete dentures,and provide a reliable reference for clinical practice.