Dr. Rooban Thavarajah gave a lecture series on tooth morphology focusing on the deciduous dentition and features of the maxillary lateral incisor. The maxillary lateral incisor is smaller than the central incisor with its crown wider from front to back than side to side. It has more rounded incisal angles, prominent ridges on the inside surface, a deeper pit, and a longer root with a less rounded tip compared to the central incisor.

1. Prof. Rooban Thavarajah
Tooth Morphology
Lecture Series
Dr. Rooban Thavarajah

2. Dr. Rooban Thavarajah
Deciduous Dentition
Maxillary Lateral Incisor

3. Dr. Rooban Thavarajah
Maxillary Lateral Incisor
 Similar to central incisor
 Smaller in dimension
 Differences only Discussed
 Cervicoincisal length of crown is greater than its
MD

4. Maxillary Lateral Incisor
 Crown of lateral incisor is wider incisocervically
than mesiodistally.
 Both incisal angles display greater rounding,
with distoincisal angle more rounder
 Marginal ridges on lingual surface are more
prominent
Dr. Rooban Thavarajah

5. Maxillary Lateral Incisor
 Deeper lingual fossa
 Narrower mesiodistal dimension seen in incisal
surface
 Outline is more rhomboidal and convex.
 Root is relatively longer,
 Root apex is not so rounded.
Dr. Rooban Thavarajah

6. Dr. Rooban Thavarajah

7. Dr. Rooban Thavarajah