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作者对6例牙列缺失患者,采用开、闭口两种印模法,制取12副上颌模型。分别测量腭穹窿的高度和宽度,进行比较分析。结果闭口印模灌注的石膏模型,其腭穹窿图的高度(垂直线段)和宽度(水平线段),绝大多数都略长于开口印模对应的线段,经t检验P<0.05。采用闭口印模法,基托下软组织腭顶部压缩量0.40±0.31mm,腭侧壁压缩量0.34±0.28mm。因此闭口印模法是一种功能性印模方法,可能更符合基托下组织在功能活动中的状态。
The authors of 6 cases of dentition defect patients, using open and closed two impressions, preparation of 12 maxillary models. The height and width of the palatal vault were measured and compared. Results In the gypsum model with closed impression, most of the height (vertical line) and width (horizontal line) of the palatal vault pattern were slightly longer than those corresponding to the opening impression. The t-test showed P <0.05. Using the closed impression method, the amount of top palatal soft tissue under the abutment was 0.40 ± 0.31mm, and the paw side wall was compressed 0.34 ± 0.28mm. Therefore, the closed impression method is a functional imprinting method, which may be more in line with the state of the tissue in the functional activity of the base.