Evaluation of transverse and sagittal maxillary arch dimensions in growing subjects with Class II Division 1 and Division 2 malocclusion: a retrospective cross-sectional study.

Researchers compared maxillary arch dimensions in 60 growing children with Class II Division 1, Class II Division 2, and Class I malocclusions using digital models. Both Class II groups showed narrower transverse dimensions, with Class II Division 2 additionally displaying shorter arch length.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.