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Review
. 2023 Feb 13;11(2):52.
doi: 10.3390/dj11020052.

Evaluation of the Changes of the Intercanine and Intermolar Widths Following Palatal Expansion in the Mixed Dentition Patients with Bilateral Posterior Crossbite: A Systematic Review

Yen Nie Lim  1 , Fadzlinda Baharin  1 , Galvin Sim Siang Lin  2 , Rozita Hassan  3 , Milton Hongli Tsai  4 , Lim Chia Wei  5 , Suzanne Yeoh  6 , Mark Ko Xiang Ping  7
Affiliations
Review

Evaluation of the Changes of the Intercanine and Intermolar Widths Following Palatal Expansion in the Mixed Dentition Patients with Bilateral Posterior Crossbite: A Systematic Review

Yen Nie Lim et al. Dent J (Basel). .

Abstract

This systematic review aimed to identify the intercanine and intermolar width changes following palatal expansion in bilateral posterior crossbite (PXB) in mixed dentition. This review was registered in the PROSPERO database (CRD42021275833). All randomized controlled trials (RCT) and non-RCT articles between 1980 and August 2022 on the palatal expansion of bilateral PXB in mixed dentition were searched in seven online databases (Google Scholar, Ovid, Web of Science, Scopus, EBSCOHost, Cochrane Library and PubMed). The risk of bias (RoB) of the articles included was analyzed using the Joanna Briggs Institute (JBI) critical appraisal tool. Three non-RCT studies were included and showed a low risk of bias. Meta-analysis on the changes in intercanine and intermolar widths was not performed due to study design heterogeneity. One study reported an over-correction of the bilateral PXB. There is a need for more RCT studies with standardized landmark measurements, outcome assessment methods and retention periods to investigate the interdental changes following palatal expansion.

Keywords: crossbites; malocclusion; mixed dentition; orthodontics; palatal expansion technique; systematic review.

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Conflict of interest statement

The authors declare no conflict of interest.

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Figure 1
Study selection based on PRISMA guidelines.
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