Changes in Outcome Evaluation before and after Wearing New Complete Dentures

目的：随着日本老年人口的增加，临床医生希望提供高质量的治疗来提高患者的生活质量。本研究的目的是评估新义齿植入前后结果的变化，并澄清其原因。方法：经知情同意后选择35例患者佩戴全口义齿。以咀嚼功能评分、满意度评分和支持组织评分为评价因素。在全口义齿治疗的三个阶段进行评估：插入新义齿前（旧义齿），插入新义齿后第一次就诊（第一次就诊）和插入后一个月（1个月）。采用方差分析、t检验和相关系数分析得分的变化。详细分析了影响咀嚼功能和咀嚼满意度的因素。结果：在咀嚼功能方面，当“旧义齿”得分较高时，植入后的得分明显下降。满意度从旧义齿到第一次就诊均有所提高，1个月后满意度进一步提高。此外，满意度的变化与满意度因子“上颌义齿贴合度”和“下颌义齿舒适度”之间存在显著相关。咀嚼功能的变化与满足感的变化之间也存在显著的相关性。结论：评价了义齿植入前后的疗效变化，明确了原因。在旧义齿效果良好的情况下，新义齿的效果有下降的趋势。认为“上颌义齿贴合度”和“下颌义齿舒适度”是义齿植入后的关键满意度因素。

Purpose : As the aged population in Japan increases, clinicians are expected to provide high-quality treatment to improve patients' QOL. The purpose of this study was to evaluate the change of outcome before and after insertion of new dentures and to clarify the causes.Methods : Thirty-five patients wearing complete dentures were selected after obtaining informed consent. Chewing function score, satisfaction score and supporting tissue score were used as the assessment factors. These were evaluated at three stages in complete denture treatment : before insertion of new dentures (old denture), first visit after insertion of new dentures (1st visit), and one month after insertion (1 month). Changes in scores were analyzed with ANOVA, t-test and correlation coefficient. Factors for evaluating chewing function and satisfaction were analyzed in detail.Results : In chewing function, when the score of "old denture" was high, the score after insertion decreased greatly. Satisfaction increased from old denture to 1st visit, and increased further at 1 month. In addition, there were significant relationships between the changes in satisfaction and the satisfaction factor "fit of the maxillary denture" and "comfort of the mandibular denture". There was also a significant correlation between the changes in chewing function and the changes in satisfaction.Conclusion : The changes in outcome were evaluated before and after inserting new dentures and the causes were clarified. In case of the good outcome of old denture, the outcome of new denture tended to decrease. The satisfaction factors "fit of the maxillary denture" and "comfort of the mandibular denture" were suggested to be the key factors after insertion of new dentures.