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Orthodontic Procedures, With or Without Extracting Primary Canines, for the Interceptive Management of Palatally Displaced Permanent Canines: A Systematic Review

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Purpose: Although rapid maxillary expansion (RME), transpalatal arch (TPA) and cervical-pull headgear (HG) have been suggested for the interception of palatally displaced permanent canines (PDCs), existing knowledge remains inconclusive. The purpose of this study was to assess these practices in an evidence-based manner.
Methods: Randomized controlled trials (RCTs) investigating the prevalence of physiologic PDC eruption after using RME, TPA and HG, with or without the extraction of the primary canines, were searched, and the risk of bias was assessed.
Results: Data from five RCTs were included. RME, TPA and HG, with or without extracting primary canines, can significantly increase the rate of normal eruption of PDCs compared to no intervention (risk ratio [RR] = 2.5 to 4.5). In comparison to extraction, no difference was observed, except for HG combined with primary canine extraction (RR = 1.413; 95 percent confidence interval = 1.062 to 1.880).
Conclusion: RME, TPA and HG can significantly increase the rate of normal eruption of PDC compared to no intervention. However, when compared to extraction, no differences were noted, except for HG combined with primary canine extraction.
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Keywords: CHILDREN; HEADGEAR; ORTHODONTICS; PALATALLY DISPLACED CANINES; RAPID MAXILLARY EXPANSION; TRANSPALATAL ARCH

Document Type: Research Article

Affiliations: 1: Dr. Al Naqbi is an orthodontist, Ministry of Health and Prevention, Dubai, United Arab Emirates 2: Dr. Kaklamanos is an associate professor, Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates; ; [email protected], Email: [email protected] 3: Dr. Papadopoulou is a senior lecturer, Discipline of Orthodontics and Paediatric Dentistry, School of Dentistry, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia 4: Dr. Athanasiou is a professor and an executive dean, Department of Dentistry, European University Cyprus, Nicosia, Cyprus

Publication date: May 1, 2020

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  • Acquired after the merger between the American Society of Dentistry for Children and the American Academy of Pediatric Dentistry in 2002, the Journal of Dentistry for Children (JDC) is an internationally renowned journal whose publishing dates back to 1934. Published three times a year, JDC promotes the practice, education and research specifically related to the specialty of pediatric dentistry. It covers a wide range of topics related to the clinical care of children, from clinical techniques of daily importance to the practitioner, to studies on child behavior and growth and development. JDC also provides information on the physical, psychological and emotional conditions of children as they relate to and affect their dental health.
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