An Atlas of Tooth Shape and Form

Table of Contents
Preface to the English Edition 8

Avishai Sadan

Preface to the Japanese Edition 9

Shigeo Kataoka

Preface to the Japanese Edition 11

Yoshimi Nishimura

Fundamentals of Tooth Morphology 13

The Three Basic Shapes of Tooth Crown Morphology 14 Transition of the Three Basic Morphologies Toward Successive Teeth 22

Characteristics of Tooth Morphology 25

Various Forms of Natural Teeth 26 Three Typical Forms of Natural Teeth 28 Characteristics of the Labial Surface 30 Characteristics of the Lingual Surface 32 Characteristics of the Proximal Surfaces 34 Transition Between Surfaces 36

Reproduction of the Form with Well-Developed Marginal Ridges 38 Reproduction of the Basic Form 40

Reproduction of the Form Without Particular Characteristics 42

The Effect of Aging on Tooth Morphology 45

Changes in Tooth Appearance 46

Extrinsic Factors that Affect the Appearance of Tooth Crowns 48 Expression of Changes in Tooth Morphology and Dentition with Age 50

Chapter 4 Contouring Ceramic Restorations I 55

Contouring a Single Restoration 56

Adjustment of Proximal Contact Areas 58

Gross Contouring I: Three-Plane Labial Composition 60

Gross Contouring II: Marginal Ridges and Proximal Transitional Surfaces 62

Gross Contouring III: Lingual Surface 64

Intermediate Finishing I: Line Angles, Transitional Areas, and Primary Ridges 66

Intermediate Finishing II: Transverse Ridges and Grooves 68

Finishing I: Gross Surface Texture 70

Finishing II: Detailed Surface Texture and Polishing 72

Completion 74

Examples of Single Restorations 76

Chapter 5 Contouring Ceramic Restorations. II 79

Contouring a Three-Unit Fixed Partial Denture 80

Gross Contouring I: Incisal Edge Length and Three-Plane Labial Composition 82

Gross Contouring II: Midline Area (Interproximal Space) 84

Gross Contouring III: Proximal Transitional Surfaces and Individualization 86

Intermediate Finishing I: Proximal Transitional Surface 88

Intermediate Finishing II: Labial Ridges 90

Finishing I: Proximal Area and Lingual Grooves 92

Finishing II: Surface Characterization and Polishing 94

Completed Fixed Partial Denture 96