Biomechanics and Aligner Therapy. Seminar by Giorgio Fiorelli. "Comfort" option

An opportunity to learn from one of the leading figures in modern orthodontics and the master behind refined and predictable biomechanics in orthodontics — Dr. Giorgio Fiorelli.

This 2-day advanced seminar is a must-attend event for all practitioners working with aligners, who really want to understand what aligners can truly achieve — and what they cannot.

Through a rigorous biomechanical approach and real clinical evidence, Dr. Giorgio Fiorelli will guide you through:
 

— The true force systems behind aligners
— The biological limits that influence predictability
— When and why aligners fail
— How to overcome these limitations using smart, low-visibility hybrid mechanics. 

Key topics of the seminar include:

— The foundations of aligner biomechanics
— Limitations of tooth movements and anchorage issues with aligners
— Extraction and non-extraction cases
— Deep bite correction and expansion
— Anchorage with TADs
— Hybrid approaches for molar uprighting, deep bite correction, true intrusion, and space closure.

This seminar is your chance to learn first-hand and unlock the hidden potential of aligners by mastering the true, defined principles of advanced biomechanics.

IMPORTANT: the “Seminar. Standard”, “Seminar. VIP” and “Hands-on workshop” participation options are also available for purchase.

Advantages of the “Seminar. Comfort” participation option:

– Participation in the scientific program
– Coffee break
– Notes and handouts
– Certificate of participation
– ADA credits available upon request
– Lunch 
– Priority seats in the venue.

Day 1

Morning Session

— Foundations of aligner biomechanics:
 

- Mechanical properties of aligner materials (PET-G, TPU, SmartTrack, TC-85)
- Stiffness, moment of inertia, span length and force delivery in thermoplastic appliances
- Stress–relaxation and clinical consequences
- Biological limits: capillary pressure thresholds and safe force levels.

Afternoon Session

— Limitations of tooth movements with aligners:
 

- Predictability of different movements
- Least predictable movements: rotations, extrusions, true intrusion
- Why aligners overload teeth: setup increments, material thickness, stress–distribution problems.
 

— Anchorage issues with aligners:
 

Threshold forces, resistance levels, equilibrium analysis
T1 and T2 phase of treatment.
 

— Clinical consequences: refinement cycles, uncontrolled tipping, anchorage loss:
 

- When aligners fail and why: evidence-based discussion.

Day 2

Morning Session

— Clinical case analysis and effective treatment planning:
 

- Extraction and non-extraction cases
- Deep bite correction: what is achievable vs not
- Expansion and asymmetrical corrections
- Anchorage with TADs: direct, indirect, and hybrid mechanics
- Sequencing movements to avoid loss of control
- How to assess predictability before approving the setup.

Afternoon Session

— Hybrid approach for molar uprighting:
 

- Why aligners struggle
- Simple aesthetic appliances for controlled uprighting: cantilevers and alpha-beta springs. With or without TADs.
 

— Hybrid approach for deep bite correction:
 

- Evidence-based approach. Real intrusion with aligners
- How minimal fixed appliances can produce true incisal intrusion.
 

— Intrusions and extrusions:
 

- Biological limits, span length problems, and force delivery issues
- Aesthetic auxiliaries for predictable vertical movements.
 

— Space Closure:
 

- Why aligners often fail to deliver the right M/F ratio
- Using aesthetic fixed mechanics to close spaces before switching to aligners
- Anchorage reinforcement strategies.