Effects of patient age on postorthodontic stability in Class II, Division 1 malocclusions

Edward Harris, James L. Vaden, Kendall L. Dunn, Rolf G. Behrents

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The increase in the proportion of adults in the typical orthodontic practice merits closer scrutiny of the treatment differences involved in adult vis-à-vis adolescent patients. Orthodontic treatment in the adolescent relies heavily on growth; in the adult, the practitioner must reposition teeth within the nongrowing arches. This difference may create the potential for greater postretention relapse in the adult; alternatively, continued growth in the subadult might detract from stability of the case. Two samples of Class II, Division 1 cases, all treated by one specialist, were examined an average of 5 years out of treatment. One group had been treated during adolescence (approximately 12 years of age), the other in adulthood (approximately 28 years). The orthodontic corrections were stable in both groups, but for different reasons: Posttreatment changes in the bony and dental structures of the adults were minimal. Bony changes (i.e., continued midface and mandibular growth) were appreciable in adolescents, and this growth-notably growth of the mandible-compensated for unfavorable drift of the dental elements (primarily mesial shift of the maxillary molar) after treatment. In sum, orthodontic corrections in adults were found to be at least as stable as those in the conventional adolescent patient.

Original languageEnglish (US)
Pages (from-to)25-34
Number of pages10
JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
Volume105
Issue number1
DOIs
StatePublished - Jan 1 1994

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Angle Class II Malocclusion
Orthodontics
Growth
Tooth
Therapeutics
Mandible
Recurrence

All Science Journal Classification (ASJC) codes

  • Orthodontics

Cite this

Effects of patient age on postorthodontic stability in Class II, Division 1 malocclusions. / Harris, Edward; Vaden, James L.; Dunn, Kendall L.; Behrents, Rolf G.

In: American Journal of Orthodontics and Dentofacial Orthopedics, Vol. 105, No. 1, 01.01.1994, p. 25-34.

Research output: Contribution to journalArticle

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