Effects of early and later timed cervical headgear treatment on the eruption timing and pattern of permanent upper canines and molars from 7 to 18 years of age: follow-up of a randomized controlled trial
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Background: Although cervical headgear (CH) is a widely studied method for the correction of Class II malocclusion, there is a lack of evidence regarding the effects of early versus later treatment timing on permanent upper canin... ...
