Passamonti G, Kotrajarus P, Gheewalla R K, Clark R E, Maness W L
J Prosthet Dent. 1981 Feb;45(2):122-6. doi: 10.1016/0022-3913(81)90326-7.
Immediate mandibular and maxillary dentures were made for six patients to determine the relative changes in the vertical dimension of occlusion and rest position over a 3-month test period. The dentures were mounted on the articular in centric occlusion (habitual). Pilkington-Turner anatomic teeth were used on the maxillary denture, which was set against a flat, noninterfering acrylic resin occlusion rim instead of mandibular posterior teeth. Positional cephalometric measurements in centric occlusion and rest position were made before extraction and at 1-week, 1-month, 2-month, and 3-month intervals. The dentures were relined after 2 months. The results were as follows: 1. In the centric occlusion position the mandible moved forward after 1 week and remained forward for the 3-month test period. 2. The rest position showed no significant change in the anteroposterior position of the mandible with time. 3. The vertical dimension of occlusion and rest showed a gradual decrease over the entire test period. 4. The reline procedure did not affect the trend of the dimensional changes. 5. A noninterfering occlusal scheme is advantageous for immediate dentures.
为六名患者制作了即刻下颌和上颌义齿，以确定在3个月的测试期内咬合垂直距离和休息位的相对变化。义齿在正中咬合（习惯位）时安装在牙合架上。上颌义齿使用皮尔金顿 - 特纳解剖型牙，其与平坦、无干扰的丙烯酸树脂咬合堤相对，而非下颌后牙。在拔牙前以及拔牙后1周、1个月、2个月和3个月时进行正中咬合位和休息位的定位头影测量。义齿在2个月后重衬。结果如下：1. 在正中咬合位，下颌在1周后向前移动，并在3个月的测试期内一直保持向前。2. 休息位时，下颌的前后位置随时间无显著变化。3. 在整个测试期内，咬合垂直距离和休息位均呈逐渐减小趋势。4. 重衬操作未影响尺寸变化趋势。5. 无干扰的咬合方案对即刻义齿有利。
