Department of Oral Surgery and Implantology, Carolinum, Goethe University, Frankfurt, Germany.
Department of Oral Surgery, Universitätsklinikum Düsseldorf, Düsseldorf, Germany.
J Clin Periodontol. 2018 Aug;45(8):996-1004. doi: 10.1111/jcpe.12977. Epub 2018 Jul 26.
To assess and compare the efficacy and safety of autogenous tooth roots (TR) and autogenous bone blocks (AB) for lateral alveolar ridge augmentation and two-stage implant placement.
A total of 30 patients in need of implant therapy and lateral ridge augmentation were allocated to parallel groups receiving either (a) healthy autogenous tooth roots (e.g. retained wisdom or impacted teeth) (n = 15) or (b) cortical autogenous bone blocks harvested from the retromolar area. After 26 weeks of submerged healing, the primary endpoint was defined as the crestal ridge width (mm) (CW26) being sufficient to place an adequately dimensioned titanium implant at the respective sites.
Soft tissue healing was uneventful in both groups. CW26 at V isit 6 allowed for a successful implant placement in all patients of both TR (15/15) and AB groups (15/15). Mean CW26 values amounted to 10.06 ± 1.85 mm (median: 11.0) in the TR and 9.20 ± 2.09 mm (median: 8.50) in the AB group, respectively. The difference between both groups did not reach statistical significance (p = 0.241).
TR may serve as an alternative graft to support lateral alveolar ridge augmentation and two-stage implant placement.
评估和比较自体牙根（TR）和自体骨块（AB）用于侧向牙槽嵴增量和两期种植体植入的疗效和安全性。
共 30 名需要种植治疗和侧向嵴增量的患者被分配到平行组，分别接受（a）健康的自体牙根（如保留的智齿或埋伏牙）（n=15）或（b）从磨牙后区采集的皮质自体骨块。在水下愈合 26 周后，主要终点定义为嵴顶宽度（mm）（CW26）足以在各自的部位放置足够尺寸的钛种植体。
两组的软组织愈合均无并发症。在 TR（15/15）和 AB 组（15/15）的所有患者中，第 6 次就诊时的 CW26 允许成功植入种植体。TR 组的平均 CW26 值为 10.06±1.85mm（中位数：11.0），AB 组为 9.20±2.09mm（中位数：8.50）。两组间的差异无统计学意义（p=0.241）。
TR 可作为支持侧向牙槽嵴增量和两期种植体植入的替代移植物。
