Table of Contents

 

 

 

1

Introduction to Dental Anatomy

1

 

Formation of the Dentitions (Overview)

1

 

Nomenclature

2

 

Formulae for Mammalian Teeth

2

 

Tooth Numbering Systems

2

 

Division into Thirds, Line Angles, and Point Angles

9

 

Tooth Drawing and Carving

10

 

Measurement of Teeth

11

 

Summary

11

2

Development and Eruption of the Teeth

21

 

Clinical Considerations

21

 

Variability

22

 

Malformations

22

 

Chronology of Primary Dentition

23

 

Development and Eruption/Emergence of the Teeth

23

 

The Dentitions

26

 

Neuromuscular Development

27

 

Transitional (Mixed) Dentition Period

28

 

Loss of Primary Teeth

29

 

Permanent Dentition

30

 

Size of Teeth

31

 

Dental Pulp

31

 

Cementoenamel Junction

32

 

Dental Age

33

 

Tooth Formation Standards

35

 

Chronologies of Human Dentition

35

 

Types of Chronologies

35

 

Stages of Tooth Formation

35

 

Age of Attainment

35

 

Age Prediction

37

 

Maturity Assessment

37

 

Duration of Root and Crown Formation

40

 

Summary of Chronologies

41

 

Sequence of Eruption

41

 

Estimating Time of Enamel Hypoplasia

41

3

The Primary (Deciduous) Teeth

45

 

Life Cycle

45

 

Importance of Primary Teeth

45

 

Nomenclature

45

 

Major Contrasts Between Primary and Permanent Teeth

47

 

Pulp Chambers and Pulp Canals

48

 

Detailed Description of Each Primary Tooth

50

4

Forensics, Comparative Anatomy, Geometries, and Form and Function

67

 

Forensic Dentistry

67

 

Comparative Dental Anatomy

69

 

Facial and Lingual Aspects of All Teeth

73

 

Summary of Schematic Outlines

75

 

Form and Function of the Permanent Dentition

75

 

Alignment, Contacts, and Occlusion

76

5

Orofacial Complex: Form and Function

81

 

Form and Function

81

 

Form Follows Function

81

 

Articulation of Teeth

81

 

Physiological Form of the Teeth and Periodontium

82

 

Fundamental Curvatures

82

 

Proximal Contact Areas

82

 

Interproximal Spaces (Formed by Proximal Surfaces in Contact)

84

 

Embrasures (Spillways)

86

 

Contact Areas and Incisal and Occlusal Embrasures from the Labial and Buccal Aspect

88

 

Contact Areas and Labial, Buccal, and Lingual Embrasures from the Incisal and Occlusal Aspects

89

 

Facial and Lingual Contours at the Cervical Thirds (Cervical Ridges) and Lingual Contours at the Middle Thirds of Crowns

91

 

The Height of Epithelial Attachment: Curvatures of the Cervical Lines (Cementoenamel Junction [CEJ]) Mesially and Distally

94

6

The Permanent Maxillary Incisors

99

 

Maxillary Central Incisor

99

 

Maxillary Lateral Incisor

106

7

The Permanent Mandibular Incisors

113

 

Mandibular Central Incisor

113

 

Mandibular Lateral Incisor

119

8

The Permanent Canines: Maxillary and Mandibular

125

 

Maxillary Canine

125

 

Mandibular Canine

132

9

The Permanent Maxillary Premolars

141

 

Maxillary First Premolar

141

 

Maxillary Second Premolar

151

10

The Permanent Mandibular Premolars

157

 

Mandibular First Premolar

157

 

Mandibular Second Premolar

165

11

The Permanent Maxillary Molars

171

 

Maxillary First Molar

171

 

Maxillary Second Molar

181

 

Maxillary Third Molar

184

12

The Permanent Mandibular Molars

189

 

Mandibular First Molar

189

 

Mandibular Second Molar

199

 

Mandibular Third Molar

203

13

Pulp Chambers and Canals

209

 

Pulp, Chamber, and Canals

209

 

Radiographs

209

 

Foramen

211

 

Demarcation of Pulp Cavity and Canal

211

 

Pulp Horns

212

 

Clinical Applications

212

 

Pulp Cavities of the Maxillary Teeth

213

 

Pulp Cavities of the Mandibular Teeth

222

 

Radiographs: Pujp Chamber and Canals

233

 

Crown and Root Fractures

233

14

Dento-Osseous Structures, Blood Vessels, and Nerves

239

 

The Maxillae

239

 

The Mandible

245

 

Arterial Supply to the Teeth

252

 

Nerve Supply to the Jaws and Teeth

256

15

The Temporomandibular Joints, Teeth, and Muscles, and their Functions

259

 

Temporomandibular Articulation

259

 

Muscles

265

 

Mandibular Movements and Muscle Activity

270

16

Occlusion

275

 

Concepts of Occlusion

275

 

Development of the Dentitions

276

 

Primary Dentition

276

 

Mixed (Transitional) Dentition

279

 

Permanent Dentition

282

 

Cusp, Fossa, and Marginal Ridge Relations

288

 

Lateral Occlusal Relations

294

 

Biomechanics of Chewing Function

298

 

Neurobehavioral Aspects of Occlusion

298

 

Oral Motor Behavior

303

 

Swallowing

304

 

Summary

304

Appendix A

Review of Tooth Morphology

309

Appendix B

Tooth Traits of the Permanent Dentition

327

 

Index

335