Chris Chang's Updated Protocols: Biomechanics, Impaction, Treatment with TADs and Aligners

Advances in bracket and wire design to further enhance torque control and space closure, especially when paired with TSADs
Simple and continuous light force system for Class 2 correction using bite turbos, Class 2 elastics, and infrazygomatic crest (IZC) screws
Application of modern bracket and wire designs to enhance torque control and facilitate space closure in Class 2 treatment
Integration of temporary anchorage devices (TADs) with aligner or fixed mechanics to improve efficiency and predictability in managing severe Class 2 malocclusions.

The role of extra-alveolar buccal shelf (BS) screws in providing stable anchorage for the conservative treatment of skeletal Class 3 malocclusion
Advances in bracket and wire design to enhance torque control and facilitate space closure in challenging class 3 cases
Integration of buccal shelf (BS) screws and 3D lever arms with modern appliance systems to effectively manage severe Class 3 cases without surgery.

The role of extra-alveolar TADs in achieving stable and predictable anchorage
Design and placement protocols for TADs in Class 3 correction
Step-by-step protocols for non-surgical management of severe Class III cases
Clinical case demonstrations and long-term stability outcomes.

Introduction to the Damon Ultima System: concept and evolution
Key features and innovations compared to previous Damon systems
Improved bracket design and torque control mechanics
Integration with light-force archwires for efficient tooth movement
Clinical advantages: precision, comfort, and reduced treatment time
Case example illustrating system performance and outcomes.

Treatment without MARPE
Arch development with the Damon System
Treatment of Class III asymmetry cases
Why choose the Damon System?
How to simplify treatment mechanics.

Challenges associated with maxillary and mandibular impactions in orthodontics
Application of minimally invasive techniques, such as VISTA, for the treatment of impacted upper and lower incisors and canines
Advantages of using VISTA in preserving gingival tissue and reducing treatment duration
Strategies for achieving precise and efficient outcomes in complex.

TADs for challenging tooth movements such as forced eruption, mesialization, and molar uprighting in aligner therapy
Application of TADs at different stages of aligner treatment to manage impactions and other complex movements
Protocols for designing treatment plans that leverage the complementary strengths of aligners (pushing) and TADs (pulling) to simplify complex orthodontic cases.

The role of temporary anchorage devices (TADs) in facilitating complex tooth movements during aligner treatment
Application of TADs to perform bodily movements such as forced eruption and mesialization that are difficult to achieve with aligners alone
Use of TADs in cases requiring molar uprighting and impaction management
Combining aligners and TADs for optimal treatment outcomes.

Introduction to Discrepancy Index (DI): definition and clinical relevance
Components and scoring system of DI
Overview of Cast-Radiograph Evaluation (CRE) and its diagnostic value
Step-by-step protocol for calculating DI and CRE in clinical cases
Case presentation: practical application and interpretation of DI and CRE results.

How to diagnose Class 2 malocclusion and evaluate mandibular growth potential to guide treatment planning
Indications, biomechanics, and limitations of the FOUR Class 2 treatment designs:
 

Class 2 elastics
Infrazygomatic crest (IZC) screws
Mandibular advancement (MA) devices
MA combined with IZC screws.
 

Selection and application of the most appropriate Class 2 mechanics in aligner therapy to achieve predictable treatment outcomes.

Identification of the FOUR key anatomical sites (IZC, buccal shelf, incisor region, and ramus) for miniscrew placement and their clinical indications
Six innovative principles of miniscrew applications for managing sagittal, vertical, and transverse discrepancies, as well as complex impactions
Protocols of miniscrew-based mechanics to improve treatment outcomes in complex orthodontic cases, including:
 

Whole-arch distalization
Posterior intrusion
Crossbite correction
Impacted tooth traction.

Advanced simplified mechanics with braces for Class 1, 2, and 3 malocclusions
Impaction treatment and complex cases with mini-implants
Aligner mechanics with TADs
Class 2 and Class 3 mechanics with aligners.