Spontaneous Changes in Molar Occlusion after Extraction of all First Premolars: A Study of Class II Division 1 Cases Treated with Removable Appliances

Abstract

Spontaneous improvement in buccal occlusion is often assumed to accompany orthodontic treatment Where premolars have been extracted. The investigation shows that buccal occlusion cannot be relied upon to improve spontaneously during typical removable appliance treatment of Class II division 1 cases.

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