Department of Oral and Maxillofacial Surgery, Shanghai Stomatological Hospital and School of Stomatology, Fudan University, Shanghai, China.
Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, China.
BMC Oral Health. 2022 Oct 2;22(1):433. doi: 10.1186/s12903-022-02473-y.
Impaction of mandibular third molars (M3) is one of the most common diseases. Extraction of M3 usually exacerbates osseous defects at the distal aspect of the adjacent second molar (M2). BonMaker ATB has been cited as a novel autogenous bone grafting material. The aim of this pilot study was to introduce a novel method for repairing the distal osseous defects of M2 after the surgical removal of M3 with autogenous tooth graft powder (ATGP).
A total of five patients were enrolled in this prospective split-mouth clinical pilot study. Four impacted wisdom teeth were extracted bilaterally from each patient with proximal alveolar bone loss ≥ 5 mm of M3. The ATGP was prepared chairside from two extracted one side third molars and randomly implanted in one of the M3 extraction sockets, and the other side was treated with a blank and considered the control site. Patients were followed up at 6 months.
The five patients included three males and two females. Their ages ranged from 25 to 30 years, with a median of 27 years. Primary wound healing without complications was achieved in all the patients. There was a greater tendency for swelling of the cheeks and trismus to occur at the experimental site on the third postoperative day. Compared with the control site, the experimental site exhibited progressive bone filling and ossification in the sixth postoperative month. Moreover, the probing pocket depth of the experimental site was lower than that of the control site.
The results of this study demonstrate that ATGP effectively and economically repairs distal osseous defects of M2. Further study is required to validate the effectiveness with a larger study population.
下颌第三磨牙(M3)阻生是最常见的疾病之一。拔除 M3 通常会加重第二磨牙(M2)远中骨缺损。BonMaker ATB 已被认为是一种新型自体骨移植材料。本研究旨在介绍一种使用自体牙骨粉(ATGP)修复 M3 手术后 M2 远中骨缺损的新方法。
本前瞻性分侧临床研究共纳入 5 例患者。每例患者双侧各有 4 颗埋伏阻生智齿,且 M3 近中牙槽骨丧失≥5mm。在椅旁将两颗同侧拔除的第三磨牙制备成 ATGP,并将其随机植入一侧 M3 拔牙窝中,另一侧作为空白对照。患者随访 6 个月。
5 例患者中男 3 例,女 2 例;年龄 25~30 岁,中位数 27 岁。所有患者均获得一期愈合,无并发症。术后第 3 天,实验组颊部和张口度肿胀的趋势更为明显。与对照组相比,实验组在术后第 6 个月表现出逐渐的骨填充和骨化。此外,实验组的探诊袋深度低于对照组。
本研究结果表明,ATGP 可有效且经济地修复 M2 的远中骨缺损。需要进一步的研究来验证其有效性和更大的研究人群。