DentistryOnline courseOrthodontics
When to extract and how to close the space — seven orthodontists on extraction mechanics, TPAs, miniscrews and lingual braces
Seven lessons and just over eight hours make up Extractions in orthodontics: aligners, braces, microimplants, transpalatal arches, taught by a seven-strong international faculty led by Marco Rosa (full list in the specifications). Together they tackle the extraction decision itself, then the biomechanics of closing the gap, from serial extraction in the mixed dentition to adult premolar cases, hinge and transpalatal mechanics, skeletal anchorage and lingual appliances.
- 7lessons
- 8 h 15 minof video
- 7instructors
What you’ll be able to do
- Choose between sliding and friction-free mechanics and between one- and two-step retraction
- Set the ratio of anterior retraction to posterior protraction and reinforce anchorage with miniscrews
- Plan serial extraction and germectomy in growing patients, or decide against them
- Select which premolars to remove in Class II division 1 and division 2 cases
- Calculate hinge position and force with transpalatal arch designs, including molar mesialisation
- Close extraction spaces efficiently with lingual fixed appliances and plan retention
Inside the course
Mechanics first
The opening 90-minute lesson sets out how to control tooth movement during space closure and walks through cases treated with one-step retraction, two-step retraction and maximum anchorage from miniscrews.
Children and adolescents
Serial extraction, expansion, leeway space, slicing primary teeth and germectomy timing are weighed against a non-extraction pathway, with appliances for maxillary expansion and early recession correction.
Adults and complex anchorage
Lessons on maxillary premolar extraction, vertical control, hinge mechanics, clinic-made springs and combined TPA and microimplant set-ups address demanding adult space closure, while a separate lesson plans severe Class I crowding from diagnosis to retention.
Lingual and digital workflows
Two lessons cover case selection, set-ups, torque control and wire geometry in lingual orthodontics, faster yet safe space closure, robotic wire bending, hybrid finishing and relapse.
Built for
- OrthodontistsCompares several schools of extraction mechanics in a single place.
- Postgraduate orthodontic residentsBiomechanical reasoning with worked cases for every protocol.
- Lingual orthodontics usersTwo dedicated lessons on space closure behind the teeth.
Curriculum
Lesson 1. Biomechanics of space closure. Anchorage control (1 h 30 min) 11 topics
- Biomechanical considerations for controlling tooth movement
- Biomechanics for predictable tooth movement
- Mechanics of space closure:
- Protocols of sliding mechanics
- Protocols of friction-free space closure mechanics.
- Determining the ratio of anterior retraction to posterior protraction
- Choosing between one-step and two-step retraction technique
- Implementing Mini Screw Implants (MSIs) for space closure management
- Step-by-step analysis of space closure cases using the one-step retraction technique
- Step-by-step analysis of space closure cases using the two-step retraction technique
- Step-by-step analysis of space closure cases with the application of miniscrews for maximum anchorage.
Lesson 2. Serial extraction in mixed dentition. Germectomy (1 h 07 min) 11 topics
- Treatment plan:
- Serial extraction
- Expansion
- Leeway.
- Ideal cases for serial extraction
- Non-extraction protocol
- Slicing of the deciduous teeth
- Ways of lower anterior crowding prevention
- Appliances for maxilla expansion
- Germectomy: timing, indications and contraindication, surgical treatment options
- Early correction of recession.
Lesson 3. Extraction of maxillary premolars and space closure (1 h 02 min) 9 topics
- Choosing the teeth to be extracted according to the malocclusion
- Anchorage
- Biomechanical perspective
- Types of tooth movements
- Biomechanics of space closure
- Types of retractions
- Vertical control
- Class 2 Division 1 corrections clinical cases
- Class 2 Division 2 corrections clinical cases.
Lesson 4. Hinge mechanics and TPA mechanics to close spaces (1 h 31 min) 11 topics
- Biomechanics of space closure
- Hinge mechanics: definition
- How to calculate the hinge position
- How to calculate the amount of the force delivered on the tooth from the appliance
- Transpalatal arch (TPA): indications for use
- Protocols for the use of transpalatal arches and modifications
- Difficulties in working with transpalatal arches
- Springs: manufacturing method in the clinic
- Combined use of microimplants and transpalatal arch
- Protocol for molar mesialization
- Analysis of complex clinical cases of space closure in adult patients.
Lesson 5. Orthodontic space closure with lingual fixed appliances (53 min) 7 topics
- How to identify cases treated best with extraction of teeth
- Set-up extraction cases with lingual appliances
- Optimum timing for extracting teeth
- Mechanics for closing spaces
- Speed-up safely extraction space closure
- Optimum finishing in extraction cases
- Retention protocols.
Lesson 6. Treatment of severe crowding Class I cases in orthodontics (1 h 01 min) 13 topics
- Diagnosis of severe crowding Class I (radiographs, clinical examination, model and cephalometric analysis)
- Treatment planning and sequencing:
- Sequence of extractions
- Orthodontic appliance selection
- Anchorage control
- Torque control during retraction and an estimation of treatment duration based on the severity of crowding and the patient’s specific needs.
- Mechanics and orthodontic appliance use:
- Archwire sequences
- Bracket placement
- Braces-archwires friction and chain elastics force on sliding mechanics.
- Monitoring and adjusting treatment
- Evaluation of treatment outcome: what you should pay attention to
- Retention of treatment results.
Lesson 7. Digital protocols in extraction cases treated with lingual orthodontic appliances (1 h 06 min) 8 topics
- Lingual orthodontics biomechanics
- How to avoid losing anchorage?
- Torque application and torque control in lingual orthodontic appliances
- Analysis of the different geometry of lingual orthodontic wires
- Robotics in orthodontics. Where we are now?
- Finishing in lingual orthodontics. A hybrid system
- Retention: protocols
- Relapse in the lingual technique.
Before you buy
How much is about aligners?
Aligner therapy appears in the course aims, but none of the seven lessons is dedicated to it; the focus is on fixed labial and lingual appliances, TPAs and miniscrews.
Are clinical cases shown?
Yes, most lessons end with step-by-step analysis of treated extraction cases.
Do I get CME credit or a certificate?
No. Clinicapedia provides the educational content only — no CME or CE credits, MOC points or certificates of completion are included with this product.
Specifications
| Format | Online video course |
|---|---|
| Instructors | Rosa, Jacob, Gribel, Musilli, Grammatopoulos, Mamede, Gilbert |
| Contents | 7 lessons |
| Duration | 8 h 15 min |
| Access | Lifetime, self-paced |
| Department | Dentistry |
| Delivery | Instant download · lifetime re-download |
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