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Miniscrew-assisted rapid palatal expansion for managing arch perimeter in an adult patient

Authors
 Amanda Carneiro da Cunha  ;  Hisun Lee  ;  Lincoln Issamu Nojima  ;  Matilde da Cunha Gonçalves Nojima  ;  Kee-Joon Lee 
Citation
 Dental Press Journal of Orthodontics, Vol.22(3) : 97-108, 2017 
Journal Title
Dental Press Journal of Orthodontics
Issue Date
2017
Abstract
Introduction: Etiology of dental crowding may be related to arch constriction in diverse dimensions, and an appropriate manipulation of arch perimeter by intervening in basal bone discrepancies cases, may be a key for crowding relief, especially when incisors movement is limited due to underlying pathology, periodontal issues or restrictions related to soft tissue profile.

Objectives: This case report illustrates a 24-year old woman, with maxillary transverse deficiency, upper and lower arches crowding, Class II, division 1, subdivision right relationship, previous upper incisors traumatic episode and straight profile. A non-surgical and non-extraction treatment approach was feasible due to the miniscrew-assisted rapid palatal expansion technique (MARPE).

Methods: The MARPE appliance consisted of a conventional Hyrax expander supported by four orthodontic miniscrews. A slow expansion protocol was adopted, with an overall of 40 days of activation and a 3-month retention period. Intrusive traction miniscrew-anchored mechanics were used for correcting the Class II subdivision relationship, managing lower arch perimeter and midline deviation before including the upper central incisors.

Results: Post-treatment records show an intermolar width increase of 5 mm, bilateral Class I molar and canine relationships, upper and lower crowding resolution, coincident dental midlines and proper intercuspation.

Conclusions: The MARPE is an effective treatment approach for managing arch-perimeter deficiencies related to maxillary transverse discrepancies in adult patients.
Files in This Item:
T201702727.pdf Download
DOI
10.1590/2177-6709.22.3.097-108.oar
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Kee Joon(이기준) ORCID logo https://orcid.org/0000-0002-0782-3128
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/160605
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