Maxillary deciduous anterior teeth

1. Maxillary Deciduous Anterior Teeth Central Incisors Lateral Incisors Canines

2. Age of Eruption Maxillary Teeth Age of Eruption Age of Falling Out Central Incisor 8-12 months 6-7 years Lateral Incisor 9-13 months 7-8 years Canine 16-22 months 10-12 years

3. Maxillary Deciduous Central Incisors

4. Maxillary Deciduous Central Incisors Labial Surface The mesio -distal diameter is greater than the cervico-incisal length. Mesio-incisal angle is a right angle but the distal- incisal angle is round.

5. Maxillary Deciduous Central Incisors Labial Surface Incisor edge is nearly straight Cervical ridge is obvious Developmental grooves are not seen and the labial surface is very smooth

6. Maxillary Deciduous Central Incisors Labial Surface Symmetrical Contact areas are the same with the permanent successors

7. Maxillary Deciduous Central Incisors Lingual Surface Well –developed marginal ridges and highly developed cingulum Lingual fossa is small Cingulum is large

8. Maxillary Deciduous Central Incisors Proximal Surface La-li small incisal thirds to middle thirds, crowns wider cervical third because of large cingulum . The mesial and distal aspects are similar, triangle.

9. Maxillary Deciduous Central Incisors Proximal Surface Curvature of cervical line is distinct, curving toward the incisal edge.

10. Maxillary Deciduous Central Incisors Incisal surface It is relatively straight and the labial surface is much broader and smoother than the lingual surface

11. Maxillary Deciduous Lateral Incisor

12. Maxillary Deciduous Lateral Incisor Similar to the central incisor from all aspects but differs in the ff.: Crown is smaller in all directions Disto-incisal angle are more rounded Root much longer

13. Maxillary Deciduous Lateral Incisor Labial Surface Cervico-incisal diameter is greater than its Mesio-distal diamter La Surface is smooth Root is cone-shaped with tapered sides

14. Maxillary Deciduous Lateral Incisor Lingual Surface Well developed Marginal Ridges Prominent Cingulum

15. Maxillary Deciduous Lateral Incisor Proximal Surface MI < sharp DI < more Rounded CEJ is distinct, curving towards incisal ridge Occlusal Surface Circular crown outline

16. Maxillary Deciduous Canine

17. Maxillary Deciduous Canine Labial Aspect Crown constricted at the cervix Mesioincisal angle more angular Distoincisal angle rounded Cervical line is flat Sharp cusp tip Mesial cusp slope longer than distal cusp slope

18. Maxillary Deciduous Canine Labial Aspect Contact areas are near the center of the crown cervicoincisally MCA more cervically positioned than DCA Root is longest among all the primary teeth prior to resorption Blunt root apex

19. Maxillary Deciduous Canine Lingual Aspect Bulky cingulum Well-developed MMR and DMR Lingual ridge distal to the middle of crown Narrower and deeper distal fossa Broader and shallower mesial fossa

20. Maxillary Deciduous Canine Mesial Aspect Short incisal border Convex labial outline Lingual outline is convex at the cingulum , becomes concave and resumes convexity at the cusp tip Concave cervix Mesial surface is evenly convex in all directions