This book offers a thorough analysis of retention and stability of the orthodontic treatment results. The book is divided into three sections. The first three chapters (Section I: Orthodontic Retention) deal with the historical aspects of retention, the biological basis of relapse, and the available evidence on retention; the next six chapters (Section II: Dentofacial Treatment Stability and Relapse) cover the stability and relapse tendency of orthodontic treatment of incisor irregularity, class II, class III, transverse, and vertical problems, as well as orthognathic surgery outcome; the final four chapters (Section III: Retention Protocols and Materials) cover retention protocols and materials, including removable and fixed retainers, the materials and biomechanics of fixed retention, and the long-term effectiveness of fixed retainers. Within the content of the book, a number of reasons are given for the lack of stability of the therapeutic outcome, as well as the development of potential unwanted effects at the retention stage.

Contents

Section I: Orthodontic retention
Chapter 01. History
Chapter 02. Biological basis for orthodontic relapse
Chapter 03. Orthodontic retention: a review and assessment of the clinical evidence

Section II: Dentofacial treatment stability and relapse
Chapter 04. Long-term changes in incisor irregularity and dental arch form/dimensions with and without orthodontic treatment
Chapter 05. Stability of transverse dimension orthodontic changes: a systematic review and pooled analysis
Chapter 06. Stability and relapse of Class II malocclusion treatment
Chapter 07. Stability and relapse of Class III treatment
Chapter 08. Stability of anterior open bite treatment: some things old, some things new
Chapter 09. Stability and relapse in orthognathic surgery

Section III: Retention protocols and materials
Chapter 10. Acrylic removable retainers
Chapter 11. Fixed retention in orthodontics
Chapter 12. Biomaterials used for fixed retainers in orthodontics
Chapter 13. Fixed-retainers: long-term effectiveness