Mousoulea Sophia, Tsolakis Ioannis, Ferdianakis Efstratios, Tsolakis Apostolos I
Department of Orthodontics and Dentofacial Orthopedics, 251 Hellenic Air Force General Hospital, Athens, Greece.
Laboratory for Experimental Surgery and Surgical Research "N. S. Christeas", Medical School, University of Athens, Greece.
Open Dent J. 2016 Dec 9;10:664-679. doi: 10.2174/1874210601610010664. eCollection 2016.
The treatment of Class III malocclusion has been challenging for orthodontists. Among a plethora of treatment modalities, the chin-cup is considered a traditional appliance for early orthopedic intervention.
The present study aims to investigate the current scientific evidence regarding the effectiveness of chin-cup therapy in Class III malocclusion of prognathic growing patients.
A systematic review of the literature was conducted using PubMed/Medline and the Cochrane Central Register of Controlled Trials from January 1954 to October 2015. Articles were selected based on established inclusion/ exclusion criteria.
The search strategy resulted in 3285 articles.14 studies were selected for the final analysis. They were all CCTs, 13 of retrospective and 1 of prospective design. Methodological quality was evaluated by a risk of bias assessment, as suggested by the Cochrane Risk of Bias Assessment Tool for Non-Randomized Studies on Interventions. The reported evidence presented favorable short-term outcomes both in hard and soft tissues improving the Class III profile, as well as desirable dento-alveolar changes, positively affecting the Class III malocclusion.
There is considerable agreement between studies that chin-cup therapy can be considered for the short-term treatment of growing patients with Class III malocclusion, as indicated by favorable changes both in the hard and soft tissues. The existence of considerable risk of bias in all selected studies and the unclear long-term effectiveness of chin-cup therapy highlight the need for further investigation to draw reliable conclusions.
对于正畸医生而言，Ⅲ类错颌畸形的治疗一直具有挑战性。在众多治疗方式中，颏兜被视为早期正畸干预的传统矫治器。
本研究旨在调查关于颏兜疗法对有前突生长型Ⅲ类错颌畸形患者有效性的现有科学证据。
使用PubMed/Medline以及Cochrane对照试验中心注册库，对1954年1月至2015年10月的文献进行系统评价。根据既定的纳入/排除标准选择文章。
检索策略共得到3285篇文章。14项研究被选入最终分析。它们均为对照临床试验，13项为回顾性研究，1项为前瞻性研究。按照Cochrane干预性非随机研究偏倚风险评估工具的建议，通过偏倚风险评估来评价方法学质量。所报告的证据显示，在硬组织和软组织方面均有良好的短期疗效，改善了Ⅲ类面型，以及出现了理想的牙-牙槽变化，对Ⅲ类错颌畸形产生了积极影响。
各项研究之间存在相当程度的共识，即对于生长发育期的Ⅲ类错颌畸形患者，颏兜疗法可考虑用于短期治疗，硬组织和软组织的良好变化表明了这一点。所有入选研究中均存在相当程度的偏倚风险，且颏兜疗法的长期有效性尚不明确，这凸显了进一步研究以得出可靠结论的必要性。
