Elangovan Bharathi, Pottipalli Sathyanarayana Haritha, Padmanabhan Sridevi
Department of Orthodontics, Sri Ramachandra Institute of Higher Education and Research, 1 Ramachandra Nagar, Chennai, 600116, India.
Department of Orthodontics, Sri Ramachandra Institute of Higher Education and Research, 1 Ramachandra Nagar, Chennai, 600116, India.
Int Orthod. 2019 Dec;17(4):634-642. doi: 10.1016/j.ortho.2019.08.002. Epub 2019 Aug 23.
The aim of this systematic review was to assess whether interceptive treatment carried out in the mixed dentition period improves the position of Palatally Displaced Canines (PDC).
A systematic search was performed on various computerized databases. A hand search was also performed by reviewing the references within the examined studies and titles of the papers published over the last 30 years on various orthodontic journals.
This systematic review analysed eight articles, of which five were Randomized Clinical Trials (RCT) and three were prospective control studies. Qualitative assessment was done for all the eight studies. The effect of interceptive measures such as extraction of primary canine, Rapid Maxillary Expansion (RME), cervical pull headgear and Transpalatal Arch (TPA) on successful eruption of Palatally Displaced Canines was analyzed.
Interceptive treatment improves the position of PDC and reduces the chances of impaction. Significant changes in success rate depend on diagnosis at early mixed dentition stage. A combination of interceptive measures which includes extraction of primary canine, cervical pull headgear, TPA and RME aided in successful eruption. However, Randomized clinical trials with increased sample size, proper randomization comparing all the interceptive measures along with assessment of other factors such as patient satisfaction, pain experience and cost factor will yield more evidence based conclusions.
本系统评价旨在评估在混合牙列期进行的阻断性治疗是否能改善腭侧阻生尖牙(PDC)的位置。
在多个计算机数据库中进行系统检索。还通过查阅纳入研究中的参考文献以及过去30年在各种正畸期刊上发表的论文标题进行手工检索。
本系统评价分析了8篇文章,其中5篇为随机临床试验(RCT),3篇为前瞻性对照研究。对所有8项研究进行了定性评估。分析了诸如拔除乳尖牙、快速上颌扩弓(RME)、颈牵引矫治器和腭弓(TPA)等阻断性措施对腭侧阻生尖牙成功萌出的影响。
阻断性治疗可改善腭侧阻生尖牙的位置并降低阻生的几率。成功率的显著变化取决于混合牙列早期的诊断。包括拔除乳尖牙、颈牵引矫治器、TPA和RME在内的阻断性措施组合有助于成功萌出。然而,样本量增加、随机化合理、比较所有阻断性措施并评估患者满意度(、疼痛体验和成本因素等其他因素的随机临床试验将得出更具循证性的结论。