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

PeerJ

article

Rafael T. Gomide¹  Jo E. Frencken²  Jorge Faber³  Anne Marie Kuijpers-Jagtman⁴  Soraya C. Leal⁷ 

[1] Division of Pediatric Dentistry, Dental School, Universidade de Brasília;Radboud Institute for Health Sciences, Department of Dentistry—Oral Function and Prosthetic Dentistry, Radboud University Medical Center;Unaffiliated;Faculty of Dentistry, Universitas Indonesia;Department of Orthodontics, University Medical Center Groningen;Department of Orthodontics and Dentofacial Orthopedics, University of Bern;Department of Dentistry, Faculty of Health Sciences, Universidade de Brasília

关键词: Non-restorative caries control;    Cavity treatment;    Primary dentition;    Malocclusion;    Atraumatic restorative treatment;    Restorations;    Index of orthodontics treatment index;   

DOI  :  10.7717/peerj.8439

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

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.

【 授权许可】

CC BY