by Farooq Ahmed
Farooq brings the key points, references and understandings from keynote webinars and papers in a concise podcast. Providing easy access to gain the most from our esteemed speakers and experts. *Important to note the information is from our interpretation as individual professionals, and may incorporate our opinions*
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Publishing Since
5/2/2020
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May 29, 2026
<p><strong>Attachments - Mistakes, Errors And Solutions | OrthoDontics In Interview | Linton Nash</strong> </p><p>"When we place attachments, we assume they are accurate, but small errors in volume, location, plaque, or insertion can completely change the force system."</p><p>"Sometimes the attachment itself can make movement worse than having no attachment at all."</p><p>"I'm not trying to eliminate every error, I'm trying to control every error we can control."</p><p>I'm joined by Dr. Linton Nash from Australia for a deep dive into aligner attachments andtrim line design, factors often overlooked but significant in tooth movement.</p><p>We explore Linton’s attachment term ‘VALE’ , volume, abrasion, location, and errors, and discuss how seemingly small factors such as plaque, attachment positioning, and tray design may significantly alter force delivery and treatment outcomes.</p><p>We discuss attachment design, optimised versus conventional designs, why they can underperform clinically, and the advantage a force system from straight trim lines can achieve. The biomechanics of lingual attachments but the inaccuracy in their use, and whether aligner systems are fundamentally working with unavoidable “play” similar to fixed appliances.</p><p>Linton also shares his research into 3D printed attachments, attachment accuracy protocols, refinement strategies, and the future of aligner mechanics.</p><p><strong>🕒 Timestamps of Key Questions & Answers</strong></p><p>03:12 What Does VALE Mean in Attachment Errors?</p><p>08:40 Which Attachment Errors Have the Biggest Clinical Impact?</p><p>15:03 Are We Destined to Work With Errors in Aligners?</p><p>18:51 Is There “Play / Slop” Between Aligners and Teeth Like Fixed Appliances?</p><p>21:43 Do Optimized Attachments Work Predictably?</p><p>28:14 Should Straight Trim Lines Be the Default?</p><p>33:54 Why Don’t More Companies Offer Trim Line Variations?35:34 Are Negative Attachments & Power Ridges Effective?38:18 How Accurate Are 3D Printed Attachments?</p><p>44:38 Should We Use Lingual Attachments?</p><p>47:36 Can Pre-scan Attachments Be The Solution (Universal Attachments by Keejoon)?</p><p>50:20 One Piece of Advice for Orthodontists</p><p>Please like and subscribe if you find it useful!</p><p>Please visit the website for this interview podcast:</p><p><a href="https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbXUxWTVULVlXc2FIdndtMzFGVUJHQU5aeGdGd3xBQ3Jtc0tuRVZNWTJRdGFZVjhrWlNNbmtyTDlMV09tbm9lWXJ1TjNiTVpKMjVpUVZDSHhGZm90SUdTOXRZd0hFN3hXVGlPNGR6d1BOeUtxYTBFV09zM3ZpRFE2eFFNX05lTTV0anZKcmMwcGZkY0taY25YTFg0Zw&q=https%3A%2F%2Forthoinsummary.com%2Fthe-bioprogressive-theory-revisited-orthodontics-in-interview-sergio-sambataro%2F&v=Y-JgUkR9rSU">https://orthoinsummary.com/the-biopro...</a></p><p><strong>. Spotify podcasts for other platforms</strong></p><p><strong>.YouTube</strong></p><p><a href="https://www.youtube.com/watch?v=Y-JgUkR9rSU"> • The Bioprogressive Theory, Revisited | Or... </a> </p><p><a href="https://www.facebook.com/watch/hashtag/orthodonticsinsummary/?__cft__[0]=AZZNw0nm-k9obUz6zv2z52RFVhpW0BvAt4of3gJGa3r_-diNzIVSdBXY44kdz-8AmvF8TnYln2ylcUed90qYwMgo6pFM_51wmrkwUz8_NzXi4-h0FNpBfLa874ebSFY1CSif3MMIDrBC4AwejDPa6TDk2U0xXBco5PJ9BQEtUCTAQmeogPGVgw5AR71Phc7sbQOytUPP_leaeOqGBVawAbn3&__tn__=*NK-R">#OrthodonticsInSummary</a></p><p>#LintonNash</p><p><a href="https://www.facebook.com/watch/hashtag/orthodontics/?__cft__[0]=AZZNw0nm-k9obUz6zv2z52RFVhpW0BvAt4of3gJGa3r_-diNzIVSdBXY44kdz-8AmvF8TnYln2ylcUed90qYwMgo6pFM_51wmrkwUz8_NzXi4-h0FNpBfLa874ebSFY1CSif3MMIDrBC4AwejDPa6TDk2U0xXBco5PJ9BQEtUCTAQmeogPGVgw5AR71Phc7sbQOytUPP_leaeOqGBVawAbn3&__tn__=*NK-R">#Orthodontics</a></p><p><a href="https://www.facebook.com/watch/hashtag/bioprogressive/?__cft__[0]=AZZNw0nm-k9obUz6zv2z52RFVhpW0BvAt4of3gJGa3r_-diNzIVSdBXY44kdz-8AmvF8TnYln2ylcUed90qYwMgo6pFM_51wmrkwUz8_NzXi4-h0FNpBfLa874ebSFY1CSif3MMIDrBC4AwejDPa6TDk2U0xXBco5PJ9BQEtUCTAQmeogPGVgw5AR71Phc7sbQOytUPP_leaeOqGBVawAbn3&__tn__=*NK-R">#bioprogressive</a></p><p><a href="https://www.facebook.com/watch/hashtag/tads/?__cft__[0]=AZZNw0nm-k9obUz6zv2z52RFVhpW0BvAt4of3gJGa3r_-diNzIVSdBXY44kdz-8AmvF8TnYln2ylcUed90qYwMgo6pFM_51wmrkwUz8_NzXi4-h0FNpBfLa874ebSFY1CSif3MMIDrBC4AwejDPa6TDk2U0xXBco5PJ9BQEtUCTAQmeogPGVgw5AR71Phc7sbQOytUPP_leaeOqGBVawAbn3&__tn__=*NK-R">#TADs</a></p><p><a href="https://www.facebook.com/watch/hashtag/orthodonticsininterview/?__cft__[0]=AZZNw0nm-k9obUz6zv2z52RFVhpW0BvAt4of3gJGa3r_-diNzIVSdBXY44kdz-8AmvF8TnYln2ylcUed90qYwMgo6pFM_51wmrkwUz8_NzXi4-h0FNpBfLa874ebSFY1CSif3MMIDrBC4AwejDPa6TDk2U0xXBco5PJ9BQEtUCTAQmeogPGVgw5AR71Phc7sbQOytUPP_leaeOqGBVawAbn3&__tn__=*NK-R">#OrthodonticsInInterview</a></p><p><a href="https://www.facebook.com/watch/hashtag/farooqahmed/?__cft__[0]=AZZNw0nm-k9obUz6zv2z52RFVhpW0BvAt4of3gJGa3r_-diNzIVSdBXY44kdz-8AmvF8TnYln2ylcUed90qYwMgo6pFM_51wmrkwUz8_NzXi4-h0FNpBfLa874ebSFY1CSif3MMIDrBC4AwejDPa6TDk2U0xXBco5PJ9BQEtUCTAQmeogPGVgw5AR71Phc7sbQOytUPP_leaeOqGBVawAbn3&__tn__=*NK-R">#FarooqAhmed</a></p><p>@Lintonnash</p><p><br></p>
May 6, 2026
<p><strong>The BioprogressiveTheory Revisited | Orthodontics In Interview | Sergio Sambataro</strong></p><p><strong> </strong></p><p><strong>"Whenyou say Class II, to me, you say nothing. We must look for the etiology of themalocclusion — not just the teeth, but the function behind them."</strong></p><p><strong> </strong></p><p><strong>"Ifyou extrude the upper molar, the condyle goes downward, and you have morevertical growth of the ramus. Ricketts showed this very clearly back in the 60sand we have published the same result at the University of Milan."</strong></p><p><strong> </strong></p><p><strong>"Oneof the principles in Class II correction is: first open the bite, and thencorrect the overjet. This is not just mechanics — it is logic."</strong></p><p><strong> </strong></p><p><strong>"Satoonce said — if you ask why he doesn't use retainers, he answers with anotherquestion: why do you use retainers? Because you know your job is notstable."</strong></p><p><strong> </strong></p><p><strong> </strong></p><p>I'm joined by Dr. Sergio Sambotaro from Sicily, for adeep dive into Bioprogressive Orthodontics, principles established by Rickettsand still debated today.</p><p> </p><p>We explore the cause of a malocclusion from abioprogressive perspective, the focus on vertical facial types determiningtreatment mechanics and anchorage. We examine the decompression theory of the ClassII case, and the role of the cervical headgear and utility arches. We turn tothe mechanics of sectional treatment over full-arch straight wire, and whereTADs fit in with the bioprogressive philosophy. We tackle the contestedevidence around transpalatal arch anchorage, and what the research may bemissing.</p><p> </p><p><strong> </strong></p><p><strong>Please like and subscribe if you find it useful!</strong></p><p> </p><p><strong>Please visit the website for this interview podcast:</strong></p><p><strong>https://orthoinsummary.com/the-bioprogressive-theory-revisited-orthodontics-in-interview-sergio-sambataro/</strong></p><p><strong> </strong></p><p><strong>.</strong></p><p><strong>Spotify podcasts for other platforms</strong></p><p><strong> </strong></p><p><strong>.</strong></p><p><strong>YouTube</strong></p><p><strong>https://youtu.be/Y-JgUkR9rSU</strong></p><p>.</p><p> </p><p><strong> </strong></p><p> </p><p>#OrthodonticsInSummary<br>#SergioSambataro<br>#Orthodontics</p><p>#bioprogressive</p><p>#TADs</p><p>#OrthodonticsInInterview</p><p>#FarooqAhmed</p><p>@SergioSambataro</p><p> </p><p>Farooq Ahmed</p><p> </p><p>🕒Timestamps of Key Questions & Answers<br>01:45 What Is the Bioprogressive Understanding of Malocclusion?04:53 How Does Facial Pattern Define the Class II and Class III in Terms ofthe Vertical?11:56 Can We Modify Facial Growth in All Cases?13:49 Can Breathing Pattern Be Changed With Orthodontics?15:32 How Do Cervical Headgear and Utility Arches Work Together in Class IICorrection?19:20 How Important Is Bracket Prescription in Bioprogressive TherapyVersus Straight Wire?22:37 What Are the Key Differences Between Bioprogressive Mechanics andConventional Straight Wire?26:14 Intrusion Arches Versus TADs — Does the Evidence ChallengeBioprogressive Principles?31:18 Does the Research on Transpalatal Arch Anchorage Loss Undermine theBioprogressive Approach?34:33 Do You Use MEAW Wires in Clinical Practice — and How Effective AreThey?38:18 Can a Great Occlusal Result Eliminate the Need for Retention?</p>
April 22, 2026
<p><br></p><p><strong>"If you anticipate, we can reduce the treatment time with aligners."</strong></p><p><strong> </strong></p><p><strong>"I never look at the simulation as the final outcome. For me, the simulation is only how the forces should be orientated to the teeth."</strong></p><p><strong> </strong></p><p><strong>"Fixed braces are more efficient to treat extraction cases. Not because we cannot do it with aligners, but because aligners need more auxiliaries and more work to achieve the same quality of movement."</strong></p><p><strong> </strong></p><p><strong>"10 years ago when we talked about aligners, everyone was looking at us like we are doing only small alignment. Today we are able to see very advanced complicated cases."</strong></p><p><strong> </strong></p><p> </p><p>The podcast was recorded live at this years European AlignerSociety meeting.</p><p> </p><p><strong>Please like and subscribe if you find it useful!</strong></p><p> </p><p><strong>Please visit the website for this interview podcast:</strong></p><p><strong>https://orthoinsummary.com/aligner-planning-and-mechanics-orthodontics-in-interview-waddah-sabouni/</strong></p><p><strong>.</strong></p><p><strong>Spotify podcasts for other platforms</strong></p><p><strong>.</strong></p><p><strong>YouTube</strong></p><p>https://youtu.be/TDMfjtMdvxQ</p><p>.</p><p> </p><p><strong> </strong></p><p> </p><p>#OrthodonticsInSummary<br>#Waddahsabouni<br>#Orthodontics</p><p>#aligners</p><p>#TADs</p><p>#OrthodonticsInInterview</p><p>#FarooqAhmed</p><p>#EAS</p><p>#Europeanalignersociety</p><p> </p><p>Farooq Ahmed</p><p>I'm joinedby Wadah Sabouni, for a focused exploration of clear aligner therapy and theevolving boundaries of aligners. We examine how science has informed the limitsof tooth movement, why overengineering and auxiliaries are complementary ratherthan opposing strategies, and what a study revealed about the surprisingdifferences between digital setup software platforms. We turnedto the biomechanics of extraction cases with Ying Yang mechanics as well asWaddah’s use of short class 2 elastics for distalisation mechanics. If mandibularadvancement with aligners are fad or innovation. We close with reflections on adecade of the European Aligners Society, and where the field must go to bringaligner orthodontics to its potential.🕒Timestamps of Key Questions & Answers<br>01:54 When Do You Choose Auxiliaries?03:38 Overengineering vs Auxiliaries – How Do You Decide?05:02 Are Occlusal Outcomes Poorer With Aligners in Extraction Cases?06:40 What Are Ying Yang Attachments and Do They Solve the ExtractionProblem?06:46 Does Software Setup Algorithm Matter More Than We Think?08:33 Should CBCT Integration Be Standard in Aligner Planning?09:10 Why Do You Use Short Class II Elastics For Aligner DistalisationMechanics?10:51 Are Mandibular Advancement Aligners Fad or Innovation?12:46 What Does 10 Years of the European Aligners Society Mean for theProfession?</p>
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Farooq brings the key points, references and understandings from keynote webinars and papers in a concise podcast.
Providing easy access to gain the most from our esteemed speakers and experts.
Important to note the information is from our interpretation as individual professionals, and may incorporate our opinions
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