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Lateral incisor root resorption and active orthodontic treatment in the early mixed dentition
 

Type:  Articles

Pubblication date:  12/2007

Authors:  M.S. Amlani, F. Inocencio, S. HATIBOVIC-KOFMAN

Language:  English

Institution:  Schulich School of Medicine and Dentistry, University of Western Ontario. London, ON, Canada

Publication:  European Journal of Paediatric Dentistry

Publisher:  Ariesdue Srl

Keywords:  Mixed dentition, Orthodontics, Early treatment, Root resorption, Lateral incisors, Canine impaction

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Email:  sahza.kofman@schulich.uwo.ca


Title:  Lateral incisor root resorption and active orthodontic treatment in the early mixed dentition

Abstract:  Aim To evaluate the presence of root resorption in the lateral incisor after active orthodontic treatment in the early mixed dentition. Methods Twenty-six children treated at the Children’s Clinic of the Schulich School of Medicine & Dentistry at the University of Western Ontario were examined radiographically for lateral incisors root resorption before and after early active treatment to align upper incisors (2x4 appliance). In addition, canine inclinations to the midline and to the long axis of the lateral incisor as well as the most medial position of the canine crown were measured as potential risk factors for root resorption. Results 8% (4) of the lateral incisors exhibited root resorption and the mean crown-to-root ratio of these teeth was significantly higher than that for lateral incisors not exhibiting root resorption. Similarly, mean canine inclinations to the midline and to the long axis of the lateral incisor were also significantly higher for the root resorption group. No association could be found between the most medial position of the canine crown and root resorption in the lateral incisor. Conclusion This study showed that active orthodontic treatment in the early mixed dentition does not increase the risk for root resorption in the lateral incisors as long as the clinician takes into consideration canine inclinations and their potential effect on root resorption. Limitations inherent to radiographic assessment are acknowledged.

 
 
 
 
 
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