Are self-ligating brackets related to less formation of Streptococcus mutans colonies? A systematic review.

Objective: To verify, by means of a systematic review, whether the design of brackets (conventional or self-ligating) influences adhesion and formation of Streptococcus mutans colonies.

Search Strategy: four databases (Cochrane Central Register of Controlled Trials, Ovid ALL EMB Reviews, PubMed and BIREME) were selected to search for relevant articles covering the period from January 1965 to December 2012.

Selection Criteria: in first consensus by reading the title and abstract.

Evaluation of asymmetries between subjects with Class II subdivision and apparent facial asymmetry and those with normal occlusion.

Introduction: The objective of this study was to compare the degree of skeletal asymmetry between subjects with Class II subdivision malocclusion and apparent facial asymmetry and subjects with normal occlusion.

Methods: The sample consisted of 23 subjects with Angle Class II subdivision malocclusions and apparent facial asymmetry (mean age, 15.78 years) and 30 subjects with normal occlusions (mean age, 22.