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.
Table of Contents
List of Contributors
Foreword
Angelos Metaxas
Foreword
Greg Huang
Acknowledgments
1 Etiology of open-bite malocclusion
Karina Freitas and Rodrigo Cançado
Environmental factors
Deleterious habits
Pacifier and thumb-sucking
Anterior tongue posture and tongue thrust
Mouth breathing
Upper respiratory obstacles
Lower respiratory obstacles
Traumatisms
Genetic factors
Growth pattern
Pathologies
Craniofacial anomalies
References
2 Open-bite treatment in the deciduous and mixed dentitions
Guilherme Janson and Fabrício Valarelli
Overbite measurement
Treatment in the deciduous dentition
Treatment in the mixed dentition
Open bite associated with different types of malocclusions
Open-bite and Class I malocclusions
Open bite associated to Class II and III malocclusions
Open-bite and Class II malocclusions
Open-bite and Class III malocclusions
Treatment stability in the deciduous and mixed dentitions
References
3 Open-bite treatment in the permanent dentition
Guilherme Janson and Fabrício Valarelli
Differential diagnosis
Open-bite nonextraction treatment
Usual clinical procedures
Additional procedures during treatment to aid in open-bite closure
Mesial angulation of the attachments
Association of tongue crib or spurs during treatment
Reversing and accentuating the curve of spee
Clinical cases
Class I malocclusions
Class II malocclusions
Class III malocclusions
Stability of nonextraction open-bite treatment
Open-bite treatment with extractions
Clinical cases
Class I malocclusions
Class II malocclusions
Stability of extraction open-bite treatment
Stability of extraction versus nonextraction open-bite treatment
Treatment of open bite with occlusal adjustment
Clinical procedure
Patient selection
Cephalometric changes expected with the procedure
Functional occlusion changes
Dentinal sensitivity
Clinical considerations
Stability of open-bite treatment with occlusal adjustment
Open-bite treatment and root resorption
Clinical implications
References
4 Open-bite correction with posterior teeth intrusion
Sérgio Barros and Daniela Garib
Introduction
Types of skeletal anchorage for open-bite correction
Skeletal anchorage positioning for molar intrusion
Molar intrusion mechanics with skeletal anchorage
Dentoskeletal effects of molar intrusion for open-bite closure
Open-bite correction with skeletal anchorage, conventional mechanics, and orthognathic surgery: a critical analysis
Clinical cases
Stability of anterior open-bite treatment by posterior teeth intrusion
Clinical cases
References
5 Orthodontic-surgical treatment of anterior open bite
Eduardo Sant’ana, Marcos Janson, and Roberto Bombonatti
Combined orthodontic-surgical treatment of skeletal anterior open bite
Orthodontic-surgical preparation to correct skeletal anterior open bite
Diagnosis of skeletal anterior open bite
Stages of combined orthodontic-surgical treatment
Treatment planning
Orthodontic treatment
Presurgical impression and revaluation of dental positioning
Presurgical records and definite treatment planning
Plaster model surgery and construction of an intermediary splint
Orthognathic surgery
Bracket rebonding, finishing procedures, and appliance removal
Retention and final records
Stability of orthodontic-surgical anterior open-bite correction
References
Index
