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Open-Bite Malocclusion
Treatment and Stability
Guilherme Janson (Edited by), G Janson (Author), Fabricio Valarelli (Edited by)
9781118335987, Wiley
Paperback / softback, published 27 December 2013
480 pages
24.4 x 17.3 x 2.3 cm, 0.921 kg
"Undergraduate curriculums tend to only touch upon open bite treatment in the deciduous or mixed dentition whereas treatment in the permanent dentition and surgical options are usually topics for the qualified, specialist clinician. For these practitioners, this textbook would be a valuable and enjoyable read." (The British Dental Journal, 1 June 2014)
Open-Bite Malocclusion: Treatment and Stability presents the etiology, treatment, and its stability of anterior open bite malocclusion in the early, mixed, and permanent dentitions. Special emphasis is devoted to orthodontic treatment and its stability in the permanent dentition because this is the time when treatment of open bite presents greater relapse. Appropriate for clinicians, orthodontic residents, and dental students, Open-Bite Malocclusion covers the most simple treatment approaches to the most complex, from orthodontic devices to tooth extraction to surgery. Unique to this book is the discussion of post-treatment stability. Drs. Janson and Valarelli highlight the post-treatment changes and presents strategies to increase treatment stability. This allows the clinician to be able to predict the stability probabilities when treating anterior open bite malocclusions in the permanent dentition either with or without extraction, orthodontic-surgical therapy, or with occlusal adjustment.
List of Contributors xi Foreword xiii Foreword xv Preface xvii Acknowledgments xix 1 Etiology of open-bite malocclusion 1 Environmental factors 2 Deleterious habits 2 Pacifier and thumb-sucking 2 Anterior tongue posture and tongue thrust 7 Mouth breathing 9 Upper respiratory obstacles 9 Lower respiratory obstacles 13 Traumatisms 16 Genetic factors 16 Growth pattern 16 Pathologies 17 Craniofacial anomalies 17 References 18 2 Open-bite treatment in the deciduous and mixed dentitions 23 Overbite measurement 24 Treatment in the deciduous dentition 25 Treatment in the mixed dentition 30 Open bite associated with different types of malocclusions 37 Open-bite and Class I malocclusions 37 Open bite associated to Class II and III malocclusions 73 Open-bite and Class II malocclusions 75 Open-bite and Class III malocclusions 121 Treatment stability in the deciduous and mixed dentitions 124 References 126 3 Open-bite treatment in the permanent dentition 129 Differential diagnosis 129 Open-bite nonextraction treatment 130 Usual clinical procedures 131 Additional procedures during treatment to aid in open-bite closure 138 Mesial angulation of the attachments 138 Association of tongue crib or spurs during treatment 139 Reversing and accentuating the curve of Spee 141 Clinical cases 141 Class I malocclusions 143 Class II malocclusions 164 Class III malocclusions 197 Stability of nonextraction open-bite treatment 214 Open-bite treatment with extractions 231 Clinical cases 233 Class I malocclusions 233 Class II malocclusions 249 Molar extractions 283 Stability of extraction open-bite treatment 299 Stability of extraction versus nonextraction open-bite treatment 313 Treatment of open bite with occlusal adjustment 317 Clinical procedure 317 Patient selection 320 Cephalometric changes expected with the procedure 320 Functional occlusion changes 322 Dentinal sensitivity 324 Clinical considerations 324 Stability of open-bite treatment with occlusal adjustment 328 Open-bite treatment and root resorption 331 Clinical implications 339 References 339 4 Open-bite correction with posterior teeth intrusion 349 Introduction 349 Types of skeletal anchorage for open-bite correction 351 Skeletal anchorage positioning for molar intrusion 352 Molar intrusion mechanics with skeletal anchorage 354 Dentoskeletal effects of molar intrusion for open-bite closure 361 Open-bite correction with skeletal anchorage, conventional mechanics, and orthognathic surgery: a critical analysis 366 Clinical cases 368 Stability of anterior open-bite treatment by posterior teeth intrusion 377 Clinical cases 384 References 397 5 Orthodontic-surgical treatment of anterior open bite 403 Combined orthodontic-surgical treatment of skeletal anterior open bite 403 Orthodontic-surgical preparation to correct skeletal anterior open bite 404 Diagnosis of skeletal anterior open bite 404 Stages of combined orthodontic-surgical treatment 406 Treatment planning 406 Orthodontic treatment 408 Presurgical impression and revaluation of dental positioning 411 Presurgical records and definite treatment planning 411 Plaster model surgery and construction of an intermediary splint 411 Orthognathic surgery 411 Bracket rebonding, finishing procedures, and appliance removal 414 Retention and final records 414 Stability of orthodontic-surgical anterior open-bite correction 433 References 436 Index 439
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Eduardo Sant’ana, Marcos Janson, and Roberto Bombonatti
Subject Areas: Medicine: general issues [MB]
