Gingival labial recessions and the post-treatment proclination of mandibular incisors

Renkema, Anne-Marie; Navratilova, Zuzanna; Mazurova, Katerina; Katsaros, Christos; Fudalej, Piotr (2015). Gingival labial recessions and the post-treatment proclination of mandibular incisors. European journal of orthodontics, 37(5), pp. 508-513. Oxford University Press 10.1093/ejo/cju073

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INTRODUCTION A prerequisite for development of gingival recession is the presence of alveolar bone dehiscence. Proclination of mandibular incisors can result in thinning of the alveolus and dehiscence formation. OBJECTIVE To assess an association between proclination of mandibular incisor and development of gingival recession. METHODS One hundred and seventeen subjects who met the following inclusion criteria were selected: 1. age 11-14 years at start of orthodontic treatment (TS), 2. bonded retainer placed immediately after treatment (T0), 3. dental casts and lateral cephalograms available pre-treatment (TS), post-treatment (T0), and 5 years post-treatment (T5), and 4. post-treatment (T0) lower incisor inclination (Inc_Incl) <95° or >100.5°. Two groups were formed: non-proclined (N = 57; mean Inc_Incl = 90.8°) and proclined (N = 60; mean Inc_Incl = 105.2°). Clinical crown heights of mandibular incisors and the presence of gingival recession sites in this region were assessed on plaster models. Fisher's exact tests, t-tests, and regression models were computed for analysis of inter-group differences. RESULTS The mean increase of clinical crown heights (from T0 to T5) of mandibular incisors ranged from 0.75 to 0.83mm in the non-proclined and proclined groups, respectively (P = 0.273). At T5, gingival recession sites were present in 12.3% and 11.7% patients from the non-proclined and proclined groups, respectively. The difference was also not significant (P = 0.851). CONCLUSIONS The proclination of mandibular incisors did not increase a risk of development of gingival recession during five-year observation in comparison non-proclined teeth.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Orthodontics

UniBE Contributor:

Katsaros, Christos and Fudalej, Piotr

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0141-5387

Publisher:

Oxford University Press

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

08 Mar 2016 16:20

Last Modified:

01 Oct 2018 02:30

Publisher DOI:

10.1093/ejo/cju073

PubMed ID:

25481921

BORIS DOI:

10.7892/boris.76783

URI:

https://boris.unibe.ch/id/eprint/76783

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