Alsino Hallaj I, Kheshfeh Mohammad N, Hajeer Mohammad Y, Burhan Ahmad S, Alkhouri Issam, Al-Ibrahim Heba M, Abou Nassar Jihad Nouman
Department of Orthodontics, Faculty of Dentistry, University of Damascus, Damascus, SYR.
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Damascus, Damascus, SYR.
Cureus. 2024 Mar 31;16(3):e57347. doi: 10.7759/cureus.57347. eCollection 2024 Mar.
Objective To evaluate the relative efficacy of periodontally accelerated osteogenic orthodontics (PAOO) compared to conventional fixed appliances in correcting lower anterior teeth crowding using a non-extraction treatment approach. Material and methods A single-center, two-arm, parallel-group randomized controlled trial was conducted on 38 patients (9 males, 29 females) with moderate crowding. These patients did not require premolar extraction and were randomly allocated into two treatment groups: the PAOO group and the conventional orthodontic treatment group. The Little Irregularity Index (LII) measured crowding intensity on pre-treatment study models. Changes in this index were recorded monthly in both treatment groups. The inter-canine width, inter-second-premolar width, plaque index (PI), gingival index (GI), and papillary bleeding index (PBI) were also measured before and after the leveling and alignment stage. Statistical analysis between the two groups was performed using Mann-Whitney U tests. Results For the LII, the average time for irregularity resolution was three months in the PAOO group, compared to five months in the conventional orthodontic treatment group. Regarding changes in inter-second-premolar width, the PAOO procedure led to a significant decrease in the increase of inter-second-premolar width, with an average increase of +1.52 mm compared to +2.71 mm in the control group. For the GI and PBI, it was found that their values significantly increased with PAOO application, averaging 0.18 and 0.17, respectively, compared to 0.05 and 0.07 in the control group. Conclusions The use of PAOO in orthodontic treatment accelerated the leveling and alignment process by 40%. Changes in the inter-canine width, the inter-second-premolar width, and the status of periodontal tissues were minimal and clinically negligible.
目的 采用非拔牙治疗方法，评估牙周加速成骨正畸术（PAOO）与传统固定矫治器相比在矫治下前牙拥挤方面的相对疗效。材料与方法 对38例（9例男性，29例女性）中度拥挤患者进行了一项单中心、双臂、平行组随机对照试验。这些患者不需要拔除前磨牙，并被随机分为两个治疗组：PAOO组和传统正畸治疗组。在治疗前的研究模型上，用小不规则指数（LII）测量拥挤程度。两个治疗组均每月记录该指数的变化。在排齐整平阶段前后还测量了尖牙间宽度、第二前磨牙间宽度、菌斑指数（PI）、牙龈指数（GI）和龈乳头出血指数（PBI）。两组间的统计分析采用Mann-Whitney U检验。结果 对于LII，PAOO组不规则度解决的平均时间为3个月，而传统正畸治疗组为5个月。关于第二前磨牙间宽度的变化，PAOO操作导致第二前磨牙间宽度增加显著减少，平均增加+1.52 mm，而对照组为+2.71 mm。对于GI和PBI，发现随着PAOO的应用，其值显著增加，平均分别为0.18和0.17，而对照组为0.05和0.07。结论 在正畸治疗中使用PAOO可使排齐整平过程加速40%。尖牙间宽度、第二前磨牙间宽度的变化以及牙周组织的状况极小，临床上可忽略不计。
