Oikarinen Kyösti S, Sàndor George K B, Kainulainen Vesa T, Salonen-Kemppi Maarit
Faculty of Dentistry, Kuwait University, Kuwait.
Dent Traumatol. 2003 Feb;19(1):19-29. doi: 10.1034/j.1600-9657.2003.00125.x.
Traumatic tooth loss leads to alveolar resorption especially in sagittal direction. This can be due to avulsion of bone substance during the accident itself or due to resorption of the alveolar crest that takes place afterwards. Shortage of bone can prevent proper positioning of dental implants unless the volume of bone is increased before implantation. In the maxillary anterior area, this is also an esthetic problem. Several treatment modalities have been presented to augment the bone. This report reviews the latest literature on bone grafting, bone substitutes, guided bone regeneration, osteocompression and distraction which are potentially useful in the anterior maxilla. A special emphasis is paid to the versatility of using a crestal split osteotomy, by means of chisels and osteotomes to widen the narrow ridge. Three examples are illustrated showing onlay grafting, preservation of alveolar width with alloplastic coral material and lateral widening of a narrow maxillary alveolar ridge, using the crestal splitting technique.
外伤性牙齿缺失会导致牙槽骨吸收,尤其是在矢状方向。这可能是由于事故本身导致的骨质撕脱,或者是由于随后发生的牙槽嵴吸收。骨量不足会妨碍牙种植体的正确植入,除非在植入前增加骨量。在上颌前部区域,这也是一个美学问题。已经提出了几种治疗方法来增加骨量。本报告回顾了关于骨移植、骨替代物、引导骨再生、骨压缩和牵张成骨的最新文献,这些方法对上颌前部可能有用。特别强调了使用嵴劈开截骨术的多功能性,通过凿子和骨刀来加宽狭窄的牙槽嵴。文中展示了三个例子,分别是覆盖式植骨、使用异体珊瑚材料保持牙槽宽度以及使用嵴劈开技术对上颌狭窄牙槽嵴进行侧向加宽。