The effect of autoclave cycles on the mechanical properties and surface roughness of NiTi archwires: ex-vivo study.

Objectives: To evaluate the effect of the universal and rapid autoclave cycles on the mechanical properties and surface roughness of nickel-titanium archwires following clinical use.

Material And Methods: Thirty-six NiTi archwires (0.016 × 0.

Is maxillary expansion effective in treatment of obstructive sleep apnoea syndrome? A systematic review of systematic reviews.

Background Maxillary expansion (ME) might be beneficial in improving airway dimensions and obstructive sleep apnoea syndrome (OSAS) in patients with constricted maxillae. The aim of this overview is to present clinicians with a summary of the evidence. Data from systematic reviews and meta-analyses were evaluated to investigate the effect of ME on OSAS.