Narvekar R M, Appelbaum M B
Department of Prosthodontics, Temple University, School of Dentistry, Philadelphia, Pa.
J Prosthet Dent. 1989 Mar;61(3):331-6. doi: 10.1016/0022-3913(89)90139-x.
The posterior palatal seal contributes significantly to the retention of a maxillary complete denture. It is commonly considered to lie on the tissue covering the soft palate. However, no references are available to substantiate this correlation between the clinical and anatomic placement. This research used ultrasound instrumentation as a noninvasive procedure to locate the anatomic structures in the posterior palatal seal region of 15 maxillary edentulous patients. The posterior border was determined to lie on the tissue covering the soft palate.
后腭封闭区对上颌全口义齿的固位有重要作用。它通常被认为位于覆盖软腭的组织上。然而，尚无参考文献能证实临床位置与解剖位置之间的这种关联。本研究采用超声仪器作为一种非侵入性方法，来定位15例上颌无牙患者后腭封闭区的解剖结构。确定其后边界位于覆盖软腭的组织上。
