Brief morphology of Maxillary Premolars taken from Wheeler's Dental Anatomy Physiology and Occlusion

1. Maxillary Premolars Dr. Syed Sadatullah Ibnsina National College Jeddah

2. Introduction Premolars are so named because they are placed between the anterior teeth and the molars Premolars assist the canines and the molars in tearing and chewing food Maxillary premolars have two cusps and sometimes one or two roots Maxillary 1 st premolar erupts between 10-11 years and maxillary 2 nd premolar erupts between 10-12 years of age

3. Maxillary 1 st Premolar Maxillary 2 nd Premolar

5. Buccal aspect

7. Lingual aspect

9. Mesial aspect

13. Occlusal aspect

15. 1.0 0 8.0 9.0 5.0 7.0 14.0 8.5 Curvature of Cervical Line M D Labiolingual Diameter at Cervical Line Labiolingual Diameter at Crest of Curvature Mesiodistal Diameter at Cervical Line Mesiodistal Diameter at Contact Area Root Length Crown Length Average Dimensions in millimeters

19. Buccal aspect Lingual aspect Mesial aspect Distal aspect Occlusal aspect