TEMPORARY ANCHORAGE DEVICES IN CLINICAL ORTHODONTICS

List of Contributors xi
Foreword xxi
Preface xxiii
Acknowledgement xxv
About the Editor xxvii
Section I Fundamental Perspectives on TADs 1
1 An Overview of Clinical Applications for Temporary Anchorage Devices (TADs) 3
2 Biomechanical Considerations for Controlling Target Tooth Movement with Mini-implants 17
3 Biomechanical Simulations for Various Clinical Scenarios Treated with TADs 27
4 Histological Aspects During the Healing Process with TADs 37
5 The Effects of TADs on the Alveolar Bone 45
6 Mechanical Aspects of TADs 53
7 Factors Affecting the Failure of TADs and Efforts to Improve the Biomechanical Stability of TADs 61
8 TADs and Successful Clinical Outcomes 69
9 Clinical, Mechanical, and Diagnostic Indices for the Placement of TADs 77
10 Considerations for the Placement of TADs 83
11 Understanding Implant Sites for TADs 91
12 Palatal TADs: Anatomical Considerations 99
13 Implant Site Selection 107

Section II Three-dimensional Correction with TADs 115
• Anteroposterior Correction 117
14 Treating Skeletal Class II Hyperdivergent Patients: A Structured Decision-making Process 117
15 Class II Correction with Skeletal Anchorage and Forsus 133
16 Distalization of Maxillary and Mandibular Molars with TADs 143
17 Effective Treatment of Class II Malocclusion with the TAD-supported amda® 153
18 The Use of TADs with a Wilson Distalizing Arch 161
19 The Use of TADs to Correct Challenging Class II Sagittal Discrepancies 169
20 Dentofacial Orthopedics for Class III Corrections with Bone-anchored Maxillary Protraction 185
21 TAD-anchored Maxillary Protraction 191
22 Protraction Headgear with Surgical Miniplates 199
• Transverse Correction 213
23 Total Arch Distalization and Control of Transverse Discrepancy with TADs 213
24 Maxillary Expansion in Skeletally Mature Patients with TADs 223
25 Maxillary Expansion with TADs in Young Adults 233
26 TAD-assisted Naso-maxillo-pharyngeal Expansion 243
27 Scissor Bite Correction with TADs 259
• Vertical Correction 271
28 Clinical Outcomes with TADs and Conventional Mechanics in Adult Skeletal Open Bite and Class II Patients 271
29 Control of Vertical Dimension and Chin Position in Class II Malocclusion with Miniscrew Implants 285
30 Anterior Open Bite Correction with One Midpalatal TAD 297
31 Treatment of Open Bite with TADs: The Nature of Molar Intrusion and Relapse 309
32 Double Arch Intrusion: Effective Use of TADs to Correct Vertical Excess 319

Section III Clinical Applications of TADs 327
33 Three-dimensional Application of Orthodontic Miniscrews and Their Long-term Stability 329
34 Tweed–Merrifield Directional Force Technology with TADs 337
35 Non-extraction Treatment of Class II Hyperdivergent Patients with Orthodontic Mini-implants 349
36 Clinical Application of Palatal TADs 359
37 Management of Missing Teeth with C-implants 369
38 Indirect Miniscrew Anchorage for Adjunctive Orthodontic Treatment: Clinical Applications and Stability 383
39 TADs for Limited Orthodontic Treatment 393
40 Uprighting Impacted Mandibular Second Molars with a Cantilever System Using TADs 405
41 Orthodontic Treatment of TMD Patients with Posterior Intrusion Using TADs 415
42 Insights to Extraradicular Bone Screw Applications for Challenging Malocclusions 433
43 The Biomechanics of Extra-alveolar TADs in Orthodontics 445
44 A New and Innovative TAD System for Improved Stability and Versatility 455
45 Palatal and Ramal Plate Applications 467
46 Miniscrews vs. Miniplates 477
47 Progress of Anchorage in Lingual Orthodontic Treatment 489
48 Biomechanics of Lingual Orthodontics and TADs 497
49 TADs with a Fully Customized CAD-CAM Lingual Bracket System 513
50 TAD-assisted Lingual Retractors 527
51 TADs and Invisalign: Making Difficult Movement Possible 541
52 The Use of TADs with Clear Aligners for Asymmetry Correction 55
53 Microimplant-assisted Aligner Therapy 563
54 Safe and Precise TAD Placement in the Anterior Palate with Simple and Inexpensive TAD Guides 577
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Section IV Esthetic Control with TADs 587
55 Correction of Occlusal Canting with TADs 589
56 Treatment of Facial Asymmetry with Microimplants 603
57 Facial Asymmetry: Non-surgical Orthodontic Treatment Considerations 615
58 The Application of TADs for Gummy Smile Correction 633
59 Application of TADs in an Adult Gummy Smile Case with Vertical Maxillary Excess 647
60 Facial Esthetics-oriented Treatment Planning with Dental VTOs and TADs 661
61 Improved Facial Profile with Premolar Extraction and Molar Intrusion Using TADs and VTOs 675

Section V Application of TADs in Surgical Cases 685
62 TADs vs. Orthognathic Surgery 687
63 Advantages of Miniscrew Usage for Pre- and Post-operative Orthodontics in Skeletal Class III Malocclusion Patients 697
64 Orthodontic Biomechanics with Miniplates in the Surgery-first Orthognathic Approach 709

Section VI Complications with the Use of TADs 717
65 Biomechanical Mistakes Related to the Use of TADs 719
66 Pros and Cons of Miniscrews and Miniplates for Orthodontic Treatment 731
67 Orthodontic Miniscrews: The Pearls and Pitfalls of TADs 739
68 Success with TADs: Evidence and Experience 747
69 Legal Considerations When Using TADs 757

Index 765

Provides the latest information on all aspects of using temporary anchorage devices in clinical orthodontics, from diagnosis and treatment planning to appliances and applications

Written by some of the world’s leading experts in orthodontics, Temporary Anchorage Devices in Clinical Orthodontics is a comprehensive, up-to-date reference that covers all aspects of temporary anchorage device (TAD) use in contemporary orthodontics. Taking a real-world approach to the subject, it covers topics ranging from diagnosis and treatment planning to the many applications and management of complications. Case studies demonstrate the concepts, and high-quality clinical photographs support the text throughout.

The book begins with an overview of clinical applications and fundamental principles of TADs. It then goes on to cover biomechanical considerations for controlling target tooth movement with TADs. Biomechanical simulations for various clinical scenarios treated with TADs are addressed next, followed by an examination of histological aspects during the healing process and anatomical considerations with TADs. Other chapters cover: Class II Correction with TADs, Distalization with TADs, TAD-anchored Maxillary Protraction, Maxillary Expansion with TADs, Anterior Open Bite Correction with TADs, TAD-assisted Aligner Therapy, TADs vs. Orthognathic Surgery; Legal Considerations When Using TADs; and much more.

• Provides evidence-based information on the use of TADs, with a focus on improving outcomes for patients
• Considers topics ranging from diagnosis and treatment planning to specific clinical applications and appliances
• Takes a real-world clinical approach, with case studies demonstrating concepts
• Written by international experts in the field
• Presents hundreds of high-quality clinical photographs to support the text

Temporary Anchorage Devices in Clinical Orthodontics is an essential resource for orthodontists and orthodontic residents.

Author
Jae Hyun Park, DMD, MSD, MS, PhD, is a Diplomate of the American Board of Orthodontics and Professor in the Postgraduate Orthodontic Program at Arizona School of Dentistry & Oral Health at A.T. Still University in Mesa, Arizona, USA, and International Scholar in the Graduate School of Dentistry at Kyung Hee University in Seoul, South Korea.