Comparing the closure rate of premolar extraction space using nickel titanium spring and elastomeric chain: a quasi-experimental study.

Key Points

• This study aims to compare the effectiveness of nickel titanium springs and elastomeric chains in closing extraction spaces following premolar extractions.
• Quasi-experimental study design
• Comparison of canine retraction rates
• Follow-up assessments
• Higher canine retraction observed using nickel titanium springs than elastomeric chains at all follow-ups.