Dental In Angle’s classification for malocclusion, key tooth is: A MB cusp of Permanent Max. 1st molar B DB cusp of Permanent Max. 1st molar C MB cusp of Permanent Max. 2nd molar D MB cusp of Permanent Mand. 1st molar 💡 Explanation In Angle's classification for malocclusion, key tooth is: ✓ Correct Answer: A. MB cusp of Permanent Max. 1st molar