Johnson A, Northeast S E
Restorative Dent. 1989 Nov;5(4):82-3, 86-90.
Advanced resorption of the mandibular residual ridge produces a flat or even concave base, which is characteristic of the "difficult lower jaw". The provision of dentures for such patients using conventional techniques often leads to an unstable and unsatisfactory result regardless of the accuracy of the fit of the denture base.
下颌剩余牙槽嵴的严重吸收会产生平坦甚至凹陷的基托，这是“难以下颌”的特征。无论义齿基托贴合的准确性如何，使用传统技术为这类患者制作义齿通常都会导致不稳定且不理想的结果。
