Mandibular incisor inclination, tooth irregularity, and gingival recessions after Herbst therapy : a 32-year follow-up study

DSpace Repository

Mandibular incisor inclination, tooth irregularity, and gingival recessions after Herbst therapy : a 32-year follow-up study

Overview

Detailed record

dc.contributor.author Pancherz, Hans
dc.contributor.author Bjerklin, Krister
dc.date.accessioned 2014-11-26T13:52:13Z
dc.date.available 2014-11-26T13:52:13Z
dc.date.issued 2014 en_US
dc.identifier.citation 310-318 en_US
dc.identifier.issn 0889-5406 en_US
dc.identifier.uri http://hdl.handle.net/2043/18029
dc.description.abstract INTRODUCTION: The aim of this study was to analyze the very long-term results after Herbst treatment with respect to changes in the mandibular incisor segment: incisor inclination, incisor alignment, and gingival status. METHODS: Fourteen patients were derived from a sample of 22 consecutive patients with Class II Division 1 malocclusions treated with the banded Herbst appliance. Intraoral photographs, mandibular dental casts, and lateral head films were analyzed from before (T1, age 12.5 years) and after (T2, age 14 years) treatment, and at 6 years (T3, age 20 years) and 32 years (T4, age 46 years) after treatment. RESULTS: At T1, incisor inclination in the 14 subjects was, on average, 100.1°. From T1 to T2, the incisors were proclined in 11 (79%) of the 14 patients, with an average value of 5.2°. Maximum proclinations of 10° were found in 2 subjects. From T2 to T4, tooth inclination recovered completely in 7 (63%) of the 11 patients. Incisor irregularity values were, on average, 3.4 mm at T1 and 3.0 mm at T2. These increased from T2 to T4 by 40% and had an average value of 5.0 mm at T4. Clinically insignificant labial gingival recessions on single front teeth were registered in 1 subject at T2 and in 8 subjects at T4. Gingival recessions were seen especially on bodily displaced incisors. CONCLUSIONS: In Herbst patients followed for 32 years after therapy, proclined mandibular incisors generally rebounded. The increase in posttreatment incisor tooth irregularity was not thought to be related to incisor tooth inclination changes but more likely resulted from physiologic processes occurring throughout life. Minor gingival recessions (especially on bodily displaced and crowded canines and incisors) seen in a few patients, 32 years after treatment, seemed not to be related to the posttreatment tooth inclination changes. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.subject Proclined mandibular incisors en_US
dc.subject Herbst en_US
dc.subject Incisor irregularity en_US
dc.subject gingival recession en_US
dc.subject incisor inclination en_US
dc.subject incisor alignment en_US
dc.subject gingival status en_US
dc.subject.classification Medicine en_US
dc.title Mandibular incisor inclination, tooth irregularity, and gingival recessions after Herbst therapy : a 32-year follow-up study en_US
dc.type Article, peer reviewed scientific en_US
dc.contributor.department Malmö University. Faculty of Odontology
dc.identifier.doi 10.1016/j.ajodo.2014.02.009 en_US
dc.subject.srsc Research Subject Categories::ODONTOLOGY en_US
dc.relation.ispartofpublication American Journal of Orthodontics and dentofacial Orthopedics;3
dc.relation.ispartofpublicationvolume 146 en_US
 Find Full text Files for download

There are no files associated with this item.

This item appears in the following Collection(s)

Overview

Search


Browse

My Account

Statistics