Dental Safety valve mechanism is: A The anteroposterior increment in the maxilla at 14 years B Increase in the mandibular intercanine width at 14 years C Increase in the mandibular height at 12 years D Increase in the maxillary intercanine width at 12 years 💡 Explanation Safety valve mechanism is: ✓ Correct Answer: D. Increase in the maxillary intercanine width at 12 years