Developmental depressions on both mesial and distal sides of roots are seen in:
Deep concavities on distal surface are present in – Maxillary 1st premolar
Deep concavities on distal surface are present in – Maxillary 1st molar
Developmental depressions on both mesial and distal sides of roots are seen in – Mandibular central incisors, upper canines, mesial root of mandibular 1st molar.
Mandibular central incisor
Maxillary canines
Mesial root of mandibular 1st molar
All of the above