Dental While performing biomechanical preparation, apical constriction is enlarged to 50 sized instrument. What would be the next step? A Use reverse filing technique B Reinstrument with larger instrument 1 mm short of previous preparation C Fit a 50 mm cone and condense carefully D Fill with 40 sized cone 💡 Explanation While performing biomechanical preparation, apical constriction is enlarged to 50 sized instrument. What would be the next step? ✓ Correct Answer: B. Reinstrument with larger instrument 1 mm short of previous preparation