Pietrokovski J, Sorin S, Hirschfeld Z
J Prosthet Dent. 1976 Aug;36(2):150-8. doi: 10.1016/0022-3913(76)90136-0.
The residual ridge which forms after the extraction of teeth is characterized by a loss of substance when compared with the dentulous ridge. The residual ridge shrinks in an apical direction and shifts lingually. This remodeling pattern takes place mainly at the expense of the bony crest, the buccal plate of the alveolar process, and the gingival tissues covering it. The lingual positioning of the residual ridge crest was observed in maxillary and mandibular specimens in all the regions of the jaws and regardless of the number of teeth missing. Cross sections of the residual ridge were square, parabolic, or tapered. The base of the pontic for a fixed partial denture should be made buccolingually as the mirror image of the crest of the residual ridge it is to contact, and it should follow mesiodistally the contour and length of the clinical crowns of the adjacent abutment teeth.
拔牙后形成的剩余牙槽嵴与有牙牙槽嵴相比，其特征在于骨质流失。剩余牙槽嵴向根尖方向收缩并向舌侧移位。这种重塑模式主要发生在以牙槽嵴顶、牙槽突颊侧板以及覆盖其上的牙龈组织为代价的情况下。在上颌和下颌标本的颌骨所有区域均观察到剩余牙槽嵴嵴顶的舌侧定位，且与缺失牙的数量无关。剩余牙槽嵴的横截面为方形、抛物线形或锥形。固定局部义齿桥体的基底部应在颊舌向制成与它所接触的剩余牙槽嵴嵴顶的镜像，并应在近远中向遵循相邻基牙临床冠的外形和长度。
