Head posture before and after the correction of unilateral functional posterior crossbite in growing children: a prospective controlled clinical trial

The presence of a unilateral functional posterior crossbite does not appear to influence head posture, when compared with a control group without crossbite. Furthermore, the orthodontic correction of unilateral functional posterior crossbite does not seem to alter head posture. The results question a cause-effect relationship between crossbite and head posture. The study did identify however a significant influence of eye dominance on head posture.