Kimoto Suguru, Gunji Atsuko, Yamakawa Aaiko, Ajiro Hiroyuki, Kanno Kyoko, Shinomiya Mayako, Kawai Yasuhiko, Kawara Misao, Kobayashi Kihei
Department of Complete Denture Prosthodontics, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Chiba 271-8587, Japan.
Int J Prosthodont. 2006 Jan-Feb;19(1):103-9.
The aim of this prospective comparative trial was to evaluate whether patients treated with complete dentures with lingualized occlusion (LO) exhibited more positive results than patients treated with complete dentures with bilaterally balanced occlusion (BBO).
Twenty-eight completely edentulous patients, ranging in age from 60 to 82 years (mean age 70.9), consented in writing to be participants in this trial. The first 14 patients enrolled in the study protocol were treated with complete dentures with LO, and the next 14 patients were treated with complete dentures with BBO. Baseline characteristics were measured prior to the trial. Main outcome variables involved subjective outcomes of general satisfaction, ability to masticate, and stability and retention of the prostheses; these were quantified with a 100-mm visual analog scale. Objective outcomes were masticatory performance and the number of adjustments. Statistical assessments of the 2 groups were compared using multiple linear regression analysis. The baseline characteristics were analyzed by Student t test and chi-square test.
There were no significant differences between the groups at baseline. The height of the alveolar ridge exhibited significant correlations with masticatory performance (P = .02). The occlusal scheme exhibited a significant correlation with only the patient's retention satisfaction rating (P = .03).
Despite limitations of this study attributed to the small sample size and lack of randomization, this pilot study found that edentulous patients fitted with complete dentures with LO experienced and expressed greater satisfaction with their denture retention. In addition, it was observed that a higher alveolar ridge resulted in greater masticatory performance.
这项前瞻性对照试验的目的是评估接受舌侧集中咬合（LO）全口义齿治疗的患者是否比接受双侧平衡咬合（BBO）全口义齿治疗的患者表现出更积极的结果。
28例全口无牙患者，年龄60至82岁（平均年龄70.9岁），书面同意参与本试验。按照研究方案，前14例患者接受LO全口义齿治疗，接下来的14例患者接受BBO全口义齿治疗。在试验前测量基线特征。主要结局变量包括总体满意度、咀嚼能力以及义齿的稳定性和固位性等主观结果；这些通过100毫米视觉模拟量表进行量化。客观结果是咀嚼性能和调整次数。使用多元线性回归分析比较两组的统计评估结果。通过学生t检验和卡方检验分析基线特征。
两组在基线时无显著差异。牙槽嵴高度与咀嚼性能表现出显著相关性（P = .02）。咬合方案仅与患者的固位满意度评分表现出显著相关性（P = .03）。
尽管本研究因样本量小和缺乏随机化存在局限性，但这项初步研究发现，佩戴LO全口义齿的无牙患者对义齿固位的体验和满意度更高。此外，观察到较高的牙槽嵴导致更好的咀嚼性能。
