1. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 1 PowerPoint ® Presentation for Chairside Dental Assisting with Labs Module: Morphology

2. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 2 Module: Morphology Morphology Part A: Maxillary and Mandibular Arches Part B: Anatomical Tooth Structures

3. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 3 Module: Morphology Learning Objectives 1. Define the Key Terms. 2. List the name and location of the primary and permanent teeth. 3. Identify the surfaces of each tooth. 4. List the anatomical structures of the teeth and their definitions. 5. Recognize the dental arches and quadrants.

4. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 4 Key Terms Adjacent Anatomical crown Apical foramen Bifurcated Buccal Cervical line Cingulum Clinical crown Cusp of Carabelli Cusps Dentition Developmental groove Distal Facial Fissure Fossa Furcation

5. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 5 Key Terms Imbrication lines Incisal edge Lingual Mamelons Mandibular arch Marginal ridges Maxillary arch Mesial Midline Oblique ridge Occlusal Pit Posterior Ridge Succedaneous Supplemental groove Transverse ridge Triangular ridge Trifurcated

6. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 6 Part A: Maxillary and Mandibular Arches Dental Quadrants

7. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 7 Function of Each Arch Influenced by –The form and shape of the tooth –Proper positioning of each tooth Antagonists –The opposing tooth –The tooth proximal to it –Distributes equal force of impact of occlusion –Each tooth helps support the next

8. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 8 Tooth Eruption 20 primary or deciduous teeth 32 permanent teeth Mandibular teeth erupt first Primary dentition does not include bicuspids or third molars

9. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 9 Tooth Eruption Anterior teeth Posterior teeth

10. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 10 Part B: Anatomical Tooth Structures Tooth surfaces

11. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 11 Anatomical Tooth Structures FissureCuspBifurcation Developmental Groove CingulumApical Foramen Cusp of Carabelli Buccal Groove Apex

12. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 12 Anatomical Tooth Structures TrifurationRidgeMamelons Triangular Ridge PitLobes Transverse Ridge Oblique RidgeFurcation Supplemental Groove Marginal RidgeFossa

13. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 13 Assessment Questions How many teeth are in the primary dentition? 20 How many teeth are in the permanent dentition? 32 How many surfaces does each tooth have? 5

14. Copyright © 2006 Thomson Delmar Learning. ALL RIGHTS RESERVED. 14 Summary of Module Key Terms Oral embryology Prenatal development Life cycle of a tooth Histology of tooth structures Maxillary and mandibular arches Tooth surfaces Anatomical tooth structures