Zeng Xingqi, Chen Xinmin, Peng Yan, Xu Chao, Men Qinglin
Department of Prosthodontics, West China College of Stomnatology, Sichwan University, Chengdu 610041, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2011 Oct;28(5):957-60.
The present paper is to investigate the relationship between height and stress-bearing area of mandibular alveolar ridge, their influence on retention of complete denture, and the effectiveness of denture adhesive (DA). Five mandibular edentulous models of different heights and a rabbit palate model were prepared in Die-Stone. Measurements were made on the heights and stress-bearing areas of mandibular alveolar ridge, the retention force of mandibular models 15 min after DA administration, and the retention force on the rabbit palate before and after adhering. All available data were analyzed statistically. Linear regression relationship was demonstrated between ridge height and bearing area, ridge height and retention force, and bearing area and retention force (P<0.01), separately. Retention force per unit area was positively related to the height and area. Retention force increased to 2.87 times postadhesive-treating. Height and stress-bearing area of mandibular alveolar ridge directly correlate with the retention of complete denture, and DA significantly improves the retention ability of complete denture.
本文旨在研究下颌牙槽嵴高度与承力面积之间的关系、它们对全口义齿固位的影响以及义齿黏附剂（DA）的有效性。用石膏制作了五个不同高度的下颌无牙颌模型和一个兔腭模型。测量了下颌牙槽嵴的高度和承力面积、给药15分钟后下颌模型的固位力以及黏附前后兔腭的固位力。对所有可得数据进行统计学分析。分别证明了牙槽嵴高度与承力面积、牙槽嵴高度与固位力、承力面积与固位力之间存在线性回归关系（P<0.01）。单位面积固位力与高度和面积呈正相关。黏附处理后固位力增加到2.87倍。下颌牙槽嵴的高度和承力面积与全口义齿的固位直接相关，并且义齿黏附剂显著提高了全口义齿的固位能力。
