Orthodontic Biomechanics: Treatment Of Complex Cases Using Clear Aligner: 1 (Recent Advances in Dentistry)

Orthodontic Biomechanics describes the mechanics behind the treatment of complex orthodontic cases using clear aligners. The volume explains a variety of complex malocclusions including increased teeth crowding, spacing, overjet, overbite, open bite, major jaw discrepancies, underbite and much more. Simplified treatment planning methods based on thorough diagnoses have also been devised by the authors for the benefit of the readers. Shortening orthodontic treatment time by careful diagnosis, planning based on understanding of orthodontic biomechanics is also discussed in addition to comparisons of jaw cases where surgery is more useful. Orthodontic Biomechanics is a useful guide for the use of clear aligners in a wide array of cases encountered by orthodontists in their daily dental practice. CONTENTS 6 FOREWORD 9 PREFACE 10 ACKNOWLEDGEMENTS 11 CONFLICT OF INTEREST 11 Introduction/History of Clear Aligners 12 REFERENCES 15 Science and Practice of Clear Aligners 17 REFERENCES 20 Orthodontic Diagnosis and Treatment Planning 22 PATIENT’S HISTORY (MEDICAL AND DENTAL) 23 REFERENCES 32 Unique Features of Clear Aligners Compared to Regular Orthodontic Appliances 33 REFERENCES 35 Orthodontic Biomechanics Using Clear Aligners 37 FORCE 37 MOMENT AND THE CONCEPT OF MOMENT TO FORCE RATIO 38 POSSIBLE ORTHODONTIC TEETH MOVEMENT USING CLEAR ALIGNERS 39 TYPES OF ORTHODONTIC TOOTH MOVEMENTS 39 REFERENCES 47 Moderate and Severe Crowding Class I Cases 49 INTRODUCTION 49 Case 1 50 Problem List/Findings 50 Treatment Objectives 50 Severe Crowding Cases 53 Case 2 53 Case 3 56 REFERENCES 59 Treatment of Class II Malocclusion Using Clear Aligners 60 INTRODUCTION 60 Case 1: Class II With Bimaxillary Protrusion 62 Results 65 Case 2: Class II 67 Treatment Planning 70 Treatment Progress 70 Case 3: Class II 74 Treatment Planning 76 Treatment Progress 77 Case 4: Class II 80 Treatment Progress 82 CRITICAL EVALUATION OF THE CASE 83 REFERENCES 85 Treatment of Class III Malocclusion Using Clear Aligners 87 INTRODUCTION 87 Case Presentation 88 Initial Treatment Plan 91 DISCUSSION 93 Summary of Class III Biomechanics 93 REFERENCES 93 Treatment of Anterior Open Bite Using Clear Aligner Therapy 95 INTRODUCTION 95 CASE 1 97 Treatment Objectives 97 Treatment Plan 97 Discussion 99 CASE 2 100 Treatment and Progress 102 Summary and Discussion 103 REFERENCES 103 Treatment of Facial Asymmetry Using Clear Aligners 104 INTRODUCTION 104 CASE PRESENTATION 105 Treatment Objectives 107 Treatment Plan 107 Treatment Progress 108 DISCUSSION 112 SUMMARY AND RECOMMENDATION 113 REFERENCES 113 Treatment of Challenging Cases Using Clear Aligners 115 [Case 1] 116 Case 1 116 Case 2 117 Critical Analysis of the Cases 119 REFERENCES 119 Surgical Orthodontics Treatment with Invisalign 121 INTRODUCTION 121 Case 1 122 Treatment Objectives 124 Treatment Progress 124 Case Summary 131 Case 2 132 Treatment Objectives 132 Treatment Progress 133 Case 3 137 Treatment Objectives 138 Treatment Progress 138 SUMMARY AND CONCLUSION 142 REFERENCES 142 Future Directions with Clear Aligners 144 SUBJECT INDEX 145