University of Oulu

Tervahauta, E, Nokela, J, Vuollo, V, Pirttiniemi, P, Silvola, A-S. Associations of sagittal malocclusions with dental arch characteristics and crowding in Northern Finland Birth Cohort 1966. Orthod Craniofac Res. 2021; 00: 1– 8. doi:10.1111/ocr.12558

Associations of sagittal malocclusions with dental arch characteristics and crowding in Northern Finland Birth Cohort 1966

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Author: Tervahauta, Elisa1; Nokela, Jonna2; Vuollo, Ville1;
Organizations: 1Research Unit of Oral Health Sciences, Faculty of Medicine, Medical Research Center, Oulu University Hospital and University of Oulu, University of Oulu, Oulu, Finland
2Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2022021619393
Language: English
Published: John Wiley & Sons, 2021
Publish Date: 2022-12-14
Description:

Abstract

Objective: To analyse the associations between the widths and forms of dental arches, malocclusions and crowding in middle-aged adult population.

Materials and Methods: The study material is part of the Northern Finland Birth Cohort 1966 (NFBC1966); the subjects were examined at the age of 46 years. A total of 781 adults with full dentition and no orthodontic treatment history were included. Overjet, overbite, cross-bite and scissor bite were examined during clinical examination. The widths and forms of dental arches, molar relationships and crowding were measured using three-dimensional (3D) dental models.

Results: Dental arches were significantly larger in males than in females. Class II (CII) occlusion and increased overjet (≥6 mm) were associated with narrow maxilla (P < .001, P < .05 respectively). Subjects with lateral cross-bite had significantly narrower maxilla and wider mandible (P < .05) than subjects with normal lateral occlusion. In subjects with CII occlusion, square or tapered maxilla and tapered or ovoid mandible were significantly more frequent compared to subjects with Class I (CI) occlusion (P < .05). CII occlusion was significantly associated with crowding in the maxilla (P < .01).

Conclusions: Narrow and tapered-shaped maxilla was related to CII occlusion, which was associated with dental crowding in the maxilla. Malocclusions were more likely to be found together with other malocclusions than alone.

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Series: Orthodontics & craniofacial research
ISSN: 1601-6335
ISSN-E: 1601-6343
ISSN-L: 1601-6335
Volume: In press
DOI: 10.1111/ocr.12558
OADOI: https://oadoi.org/10.1111/ocr.12558
Type of Publication: A1 Journal article – refereed
Field of Science: 313 Dentistry
Subjects:
Copyright information: © 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd. This is the peer reviewed version of the following article: Tervahauta, E, Nokela, J, Vuollo, V, Pirttiniemi, P, Silvola, A-S. Associations of sagittal malocclusions with dental arch characteristics and crowding in Northern Finland Birth Cohort 1966. Orthod Craniofac Res. 2021; 00: 1– 8, which has been published in final form athttps://doi.org/10.1111/ocr.12558. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited."