"Do not believe that you can do everything with an aligner. It's not possible at the moment... I think 80% of the cases can be managed with aligners only, but 20% of the cases require a hybrid approach."
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"Whenever I hear from a company that they're going to send me aligners for five years, I'm scared. I don't want them... I want to finish cases possibly in two years."
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"We know that we have different phases of treatment... To have just one aligner material for every step is nonsense in orthodontics."
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"With just one appliance [the positioner], I avoid a refinement of maybe 10-20 aligners. It's going to save me a lot of time."
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When should clear aligners be combined with fixed appliances? And can changing aligner materials improve treatment efficiency?
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Joining me on this episode of Orthodontics in Interview is Achille Farina from BresciaItaly, Achille shares his clinical philosophy on hybrid aligner treatment, the indications, the practical orthodontic biomechanics, with a focus on efficient orthodontics modern day aligner therapy.
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Indications for hybrid treatment includeroot movements, bodily translation, impacted canine traction, and extraction space closure. Achille explains his approach to combining clear aligners with lingual sectional appliances, using the aligners to maintain anchorage while sectional mechanics help achieve root uprighting. We also discuss why he often favours lingual appliances for complex extraction cases and why treatment efficiency should remain central to clinical decision-making.
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The conversation then turns to aligner materials and the potential benefits of using different thicknesses at different stages of treatment. Achille describes his approach to combining thinner daytime aligners with thicker nighttime aligners, before explaining why tooth positioners can be particularly useful for posterior occlusal settling and potentially avoiding additional aligner refinements, a new reason to use old appliances
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Finally, we discuss the limitations of aligner biomechanics, the ethical responsibility to change treatment mechanics when progress is inadequate, and why orthodontists should continue to understand fixed appliance mechanics rather than relying exclusively on clear aligners.
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🕒 Timestamps – Key Questions & Answers
02:15 What Are the Clinical Indications for Hybrid Aligner Treatment?
04:03 When Should Orthodontists Consider Hybrid Mechanics?
07:02 Why Does Achille Farina Prefer Lingual Appliances for Complex Cases?
08:23 Are Lingual Appliances More Efficient Than Aligners for Extraction Cases?
11:11 Should Hybrid Mechanics Be Planned Proactively or Introduced Reactively?
13:38 How Are Lingual Sectional Appliances Combined With Aligners?
17:02 How Does Tip-Edge Biomechanics Influence Space Closure With Aligners?
21:03 When Should Orthodontists Change an Ineffective Aligner Treatment Plan?
22:35 Why Use Two Different Aligner Materials During Treatment?
27:18 Why Combine Thin Daytime Aligners With Thick Nighttime Aligners?
28:04 How To Select Different Aligner Materials and Thicknesses?
30:57 Why Are Tooth Positioners Still Relevant in Modern Orthodontics?
34:36 When Should Orthodontists Use a Positioner Instead of Additional Refinements?
37:01 What Is Achille Farrina's Advice for Orthodontists Using Clear Aligners?
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Visit the website for this interview podcast:
Website – https://orthoinsummary.com/hybrid-aligner-treatment-and-two-vs-one-aligner-material-systems-orthodontics-interview-achille-farina/
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