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作者对拔除余留牙和戴入全口义齿后下颌休息位的变化进行了24个月的研究。共24名患者,均至少有10颗牙齿有咬合接触。每名患者在拔牙前(1期)、初戴后7～10天(2期)、戴入后12个月(3期)、戴入后24个月(4期)四个时期摄连续的侧位X线头影测量片。每张X线片作两个角度(N—S/Pog,N—S/Me—Go)和一条线性(Me—PP)测量并比较。各期垂直休息距离变化的百分率是以拔牙前的测量为起点作计算。1期到2期为2.87％,1期到3期0.1％,1期到4期-0.495％。单因素方差分折和F检验有显著性差异。
The authors conducted a 24-month study of changes in mandibular resting position after removal of remaining teeth and wearing complete denture. A total of 24 patients, at least 10 teeth have occlusal contact. Each patient in the four periods before tooth extraction (1), after wearing the first 7 to 10 days (2), 12 months after wearing (3), 24 months after wearing (4) Lateral X-cephalometry film. Each X-ray film was measured and compared at two angles (N-S / Pog, N-S / Me-Go) and a linear (Me- PP). The percentage of changes in the vertical rest distances for each period is calculated from the pre-extraction measurements. The first to second phase was 2.87%, the first phase to the third phase 0.1%, the first phase to the fourth phase -0.495%. One-way ANOVA and F-test showed significant differences.