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Relapse of orthodontically corrected deepbites in accordance with growth pattern.
Am J Orthod Dentofacial Orthop. 2012 Apr; 141(4):477-83.AJ

Abstract

INTRODUCTION

A common orthodontic problem is a deep overbite malocclusion. Because of its high relapse tendency, it is also one of the most challenging problems to treat. To minimize relapse, the morphologic characteristics of patients need to be considered. The aim of this study was to compare deepbite relapse in 3 groups of patients categorized by vertical growth type.

METHODS

The total sample included 60 patients treated at the University of Washington in Seattle, all with initial overbites greater than 50%. Data were collected from casts and cephalometric radiographs at 3 time points: pretreatment, posttreatment, and 10 years postretention. A mixed-effects model (analysis of variance) and post-hoc t tests were used for the statistical evaluations.

RESULTS

The high-angle subjects showed the least deepbite relapse (0.1 ± 1.1 mm), whereas the low-angle (1.2 ± 0.9 mm) and the normal-angle (1.4 ± 1.3 mm) subjects had statistically significant relapses P <0.001. This overbite relapse might be partially due to changes in the mandibular and interincisal angles, which were also observed in these 2 groups.

CONCLUSIONS

High-angle subjects tend to relapse less in overbite than do low-angle and normal-angle subjects in the long term.

Authors+Show Affiliations

University of Texas Health Science Center at Houston, School of Dentistry, Department of Orthodontics, 6516 MD Anderson Blvd, Suite 371, Houston, TX 77030, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

22464530

Citation

Pollard, Derek, et al. "Relapse of Orthodontically Corrected Deepbites in Accordance With Growth Pattern." American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, vol. 141, no. 4, 2012, pp. 477-83.
Pollard D, Akyalcin S, Wiltshire WA, et al. Relapse of orthodontically corrected deepbites in accordance with growth pattern. Am J Orthod Dentofacial Orthop. 2012;141(4):477-83.
Pollard, D., Akyalcin, S., Wiltshire, W. A., & Rody, W. J. (2012). Relapse of orthodontically corrected deepbites in accordance with growth pattern. American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics, 141(4), 477-83. https://doi.org/10.1016/j.ajodo.2011.11.013
Pollard D, et al. Relapse of Orthodontically Corrected Deepbites in Accordance With Growth Pattern. Am J Orthod Dentofacial Orthop. 2012;141(4):477-83. PubMed PMID: 22464530.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relapse of orthodontically corrected deepbites in accordance with growth pattern. AU - Pollard,Derek, AU - Akyalcin,Sercan, AU - Wiltshire,William A, AU - Rody,Wellington J,Jr PY - 2011/05/01/received PY - 2011/11/01/revised PY - 2011/11/01/accepted PY - 2012/4/3/entrez PY - 2012/4/3/pubmed PY - 2012/5/23/medline SP - 477 EP - 83 JF - American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics JO - Am J Orthod Dentofacial Orthop VL - 141 IS - 4 N2 - INTRODUCTION: A common orthodontic problem is a deep overbite malocclusion. Because of its high relapse tendency, it is also one of the most challenging problems to treat. To minimize relapse, the morphologic characteristics of patients need to be considered. The aim of this study was to compare deepbite relapse in 3 groups of patients categorized by vertical growth type. METHODS: The total sample included 60 patients treated at the University of Washington in Seattle, all with initial overbites greater than 50%. Data were collected from casts and cephalometric radiographs at 3 time points: pretreatment, posttreatment, and 10 years postretention. A mixed-effects model (analysis of variance) and post-hoc t tests were used for the statistical evaluations. RESULTS: The high-angle subjects showed the least deepbite relapse (0.1 ± 1.1 mm), whereas the low-angle (1.2 ± 0.9 mm) and the normal-angle (1.4 ± 1.3 mm) subjects had statistically significant relapses P <0.001. This overbite relapse might be partially due to changes in the mandibular and interincisal angles, which were also observed in these 2 groups. CONCLUSIONS: High-angle subjects tend to relapse less in overbite than do low-angle and normal-angle subjects in the long term. SN - 1097-6752 UR - https://www.unboundmedicine.com/medline/citation/22464530/Relapse_of_orthodontically_corrected_deepbites_in_accordance_with_growth_pattern_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0889-5406(12)00050-9 DB - PRIME DP - Unbound Medicine ER -