Dental Major pattern of accessory canals in mandibular molar is? A A lateral canal extends from coronal 3rd to furcal region in distal canal. B Presence of both lateral & furcal canal C Single furcation canal extend from pulp chamber to intra-radicular region D Variable pattern & depend on age of patient 💡 Explanation Major pattern of accessory canals in mandibular molar is? ✓ Correct Answer: A. A lateral canal extends from coronal 3rd to furcal region in distal canal.