Occlusal characteristics in modern humans with tooth agenesis.

Alamoudi, Ragda; Kanavakis, Georgios; Oeschger, Elias S; Halazonetis, Demetrios; Gkantidis, Nikolaos (2024). Occlusal characteristics in modern humans with tooth agenesis. Scientific Reports, 14(5840) Nature Publishing Group 10.1038/s41598-024-56449-9

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Non-syndromic permanent tooth agenesis affects a significant proportion of the population, especially if third molars are considered. Although tooth agenesis has been linked to a smaller craniofacial size, reduced facial convexity and a shorter skeletal face, the occlusal characteristics of individuals with tooth agenesis remain largely unexplored. Therefore, this study investigated potential associations between tooth agenesis and metric occlusal traits in 806 individuals (491 with 4.1 missing teeth per subject, including third molars, and 315 without any tooth agenesis). Dentoskeletal morphology was defined through anatomical landmarks on pre-treatment cephalometric radiographs. Multivariate regression models, adjusted for sex and age, showed that tooth agenesis was significantly associated with a reduced overjet, an increased interincisal angle, and shorter upper and lower dental arch lengths, but not with overbite. Moreover, apart from reduced tooth length and dentoalveolar effects, as the number of missing teeth increased the upper front teeth were progressively retruded according to the craniofacial complex and to the face. Thus, tooth agenesis has a substantial influence on dental and occlusal characteristics, as well as on the sagittal position and inclination of anterior teeth. These findings emphasize the necessity for personalized, multidisciplinary approaches in individuals with multiple agenesis to successfully meet treatment goals.

Item Type:

Journal Article (Original Article)

Division/Institute:

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

UniBE Contributor:

Alamoudi, Ragda Fahid A, Oeschger, Elias Sebastian, Gkantidis, Nikolaos

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2045-2322

Publisher:

Nature Publishing Group

Language:

English

Submitter:

Pubmed Import

Date Deposited:

11 Mar 2024 14:37

Last Modified:

12 Mar 2024 14:20

Publisher DOI:

10.1038/s41598-024-56449-9

PubMed ID:

38462644

Uncontrolled Keywords:

Dental occlusion Dental overbite Dental overjet Dentition Malocclusion Tooth agenesis

BORIS DOI:

10.48350/194121

URI:

https://boris.unibe.ch/id/eprint/194121

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