Temple Kayleigh Eaves, Schoolfield John, Noujeim Marcel E, Huynh-Ba Guy, Lasho David J, Mealey Brian L
Int J Periodontics Restorative Dent. 2017 Nov/Dec;37(6):801-807. doi: 10.11607/prd.2642.
Buccal plate thickness is an important clinical parameter for postextraction implant treatment planning. The purpose of this study was to assess buccal plate thickness of the posterior maxilla and mandible using cone beam computed tomography (CBCT). A total of 265 patients and 934 teeth met the inclusion criteria for this study. CBCT volumes were taken and aligned for measurement at the ideal midsagittal cross-section. Buccal plate thickness was measured at 1, 3, and 5 mm apical to the alveolar crest. The frequency of thick (≥ 1 mm), thin (< 1 mm), and radiographic absence of the buccal plate were determined. The frequency of thin buccal plate decreases from anterior to posterior, with first premolars and first molar mesial roots most affected. Radiographic absence of the buccal plate was more common in the mandible, at first premolars, and among women. Thin and absent buccal plate are not uncommon in the posterior jaws; consequently, ridge preservation may be indicated even at posterior teeth.
颊侧骨板厚度是拔牙后种植治疗计划的一个重要临床参数。本研究的目的是使用锥形束计算机断层扫描（CBCT）评估上颌和下颌后部的颊侧骨板厚度。共有265例患者和934颗牙齿符合本研究的纳入标准。采集CBCT容积数据，并在理想的正中矢状面进行对齐测量。在牙槽嵴顶根尖1、3和5毫米处测量颊侧骨板厚度。确定厚（≥1毫米）、薄（<1毫米）以及颊侧骨板影像学缺如的频率。颊侧骨板薄的频率从前向后降低，第一前磨牙和第一磨牙近中根受影响最大。颊侧骨板影像学缺如在下颌、第一前磨牙以及女性中更为常见。颊侧骨板薄或缺如在后牙区并不少见；因此，即使在后牙也可能需要进行牙槽嵴保存。
