The effect of extraction of lower primary canines on the morphology of dental arch: A systematic review and meta-analysis.
dental arch
extraction of primary canines
interceptive orthodontics
mixed dentition
systematic review
Journal
International journal of paediatric dentistry
ISSN: 1365-263X
Titre abrégé: Int J Paediatr Dent
Pays: England
ID NLM: 9107511
Informations de publication
Date de publication:
Sep 2021
Sep 2021
Historique:
revised:
20
05
2020
received:
09
04
2020
accepted:
13
07
2020
pubmed:
19
9
2020
medline:
20
8
2021
entrez:
18
9
2020
Statut:
ppublish
Résumé
The beneficial effect of the extraction of primary canines in the resolution of incisor irregularity and its side effects are controversial. To systematically review the effects of the extraction of primary canines in incisor irregularity and dental arch morphology. Controlled non-randomized (non-RCT) and randomized clinical trials (RCT) evaluating children treated with extraction of primary canines compared with those without intervention. A total of 984 articles were found, of which two RCTs and one non-RCT met the inclusion criteria. Both had a low RoB. A high level of evidence was observed through GRADE. A meta-analysis showed the extraction of primary canines produced a significant decrease in incisor irregularity (95% CI: -3.56, -2.09 mm). This decrease, however, was associated with a reduction of arch length (95% CI: -1.58, -0.94 mm), intermolar width (95% CI: -0.61, -0.22 mm), and overjet (95% CI: -075, -018). A mild overbite increase was found (95% CI: 0.10, 0.76 mm). A high level of evidence showed that the extraction of primary canines improved incisor irregularity in the mixed dentition. Side effects included reduced arch length and intermolar width. A slight reduction in overjet and a mild increase in overbite were also observed. When they are not part of the treatment goal, these occlusal changes can be prevented by installing a lingual arch.
Sections du résumé
BACKGROUND
BACKGROUND
The beneficial effect of the extraction of primary canines in the resolution of incisor irregularity and its side effects are controversial.
AIM
OBJECTIVE
To systematically review the effects of the extraction of primary canines in incisor irregularity and dental arch morphology.
DESIGN
METHODS
Controlled non-randomized (non-RCT) and randomized clinical trials (RCT) evaluating children treated with extraction of primary canines compared with those without intervention.
RESULTS
RESULTS
A total of 984 articles were found, of which two RCTs and one non-RCT met the inclusion criteria. Both had a low RoB. A high level of evidence was observed through GRADE. A meta-analysis showed the extraction of primary canines produced a significant decrease in incisor irregularity (95% CI: -3.56, -2.09 mm). This decrease, however, was associated with a reduction of arch length (95% CI: -1.58, -0.94 mm), intermolar width (95% CI: -0.61, -0.22 mm), and overjet (95% CI: -075, -018). A mild overbite increase was found (95% CI: 0.10, 0.76 mm).
CONCLUSION
CONCLUSIONS
A high level of evidence showed that the extraction of primary canines improved incisor irregularity in the mixed dentition. Side effects included reduced arch length and intermolar width. A slight reduction in overjet and a mild increase in overbite were also observed. When they are not part of the treatment goal, these occlusal changes can be prevented by installing a lingual arch.
Types de publication
Journal Article
Meta-Analysis
Review
Systematic Review
Langues
eng
Pagination
583-597Informations de copyright
© 2020 BSPD, IAPD and John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
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