Cavity treatment in primary molars and malocclusion: quasi-randomised clinical trial

Gomide, Rafael T.; Frencken, Jo E.; Faber, Jorge; Kuijpers-Jagtman, Anne Marie; Leal, Soraya C. (2020). Cavity treatment in primary molars and malocclusion: quasi-randomised clinical trial. PeerJ, 8, e8439. PeerJ, Ltd 10.7717/peerj.8439

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Background
An innovative caries treatment protocol for primary teeth, termed Ultra-Conservative Treatment (UCT), restores small cavities through the Atraumatic Restorative Treatment (ART) protocol and cleans medium to large open cavities with toothbrush and fluoride toothpaste. However, UCT-treated primary molars were found to exfoliate earlier than amalgam (CRT) and ART-restored cavities, which may lead to unacceptable loss of space for normal eruption of permanent successors. The null-hypothesis tested was that there is no difference between the three treatment protocols and the intra-arch distances, and index of orthodontic treatment need (IOTN) after 4 years.
Methods
Dental casts were taken at baseline (T0) and four (T4) years. The space of the premolars (D + E space), arch perimeter, anterior and total arch depth were measured using a morphometric computer programme. The presence and level of malocclusion were assessed according to the IOTN index. Dependent variables were all intra-arch distances and the IOTN while the independent variable was treatment protocol (CRT, ART and UCT). Data were analysed using linear and logistic regression.
Results
The sample consisted of 867 pairs of casts of 272 initial 6–7-year-olds. No difference was observed between the UCT protocol and the two restorative protocols for the intra-arch variables in both maxilla and mandible over the 4 year period. There was no difference between the UCT and the CRT and ART protocols regarding the occurrence of orthodontic treatment need (malocclusion). In conclusion, the UCT treatment protocol does not differ significantly from the traditional amalgam (CRT) and ART restorative protocols with respect to intra-arch distances and malocclusion. The earlier exfoliation of UCT-treated primary molars does not lead to a worsening of the eruption pattern of permanent successors.

Item Type:

Journal Article (Original Article)

Division/Institute:

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

UniBE Contributor:

Kuijpers-Jagtman, Anne-Marie

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2167-8359

Publisher:

PeerJ, Ltd

Language:

English

Submitter:

Renate Imhof-Etter

Date Deposited:

19 Feb 2020 11:09

Last Modified:

05 Dec 2022 15:36

Publisher DOI:

10.7717/peerj.8439

BORIS DOI:

10.7892/boris.140309

URI:

https://boris.unibe.ch/id/eprint/140309

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