orthodontics In summary

“Most orthodontic research looks strong on paper, but when you ask how much actually changes clinical practice, the number is surprisingly low.”

“Case reports may sit at the bottom of the evidence pyramid, but without them, there is no science at all.”

“We are not just dealing with appliances and scans. We are dealing with biology, data, and human behaviour all at once.”

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I’m joined by Nikilesh Vaid , and in this episode we go beyond clinical techniques and into the deeper questions shaping the specialty: why orthodontic research still produces relatively low levels of high-quality evidence, 
The role of case reports and what truly influences clinical practice, and why collaboration is not common in academia. Nikhilesh also reflects on institutional responsibility, editorial ethics, and current publication practices impact on broader participation in research.
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The conversation moves to the future of orthodontics: remote monitoring, artificial intelligence, and data-driven treatment planning. We explore whether these technologies genuinely improve outcomes or are just  changes in workflows, and how education systems should adapt to prepare the next generation of orthodontists.
Finally, Nikhilesh shares his perspective on the profession itself, reminding us that while excellence defines our science, empathy defines our care.
🕒 Timestamps of Key Questions & Topics
02:33 Why is orthodontic research still dominated by low-level evidence?07:25 Do case reports still matter in modern orthodontics?09:44 Why is there a lack of collaboration in research?15:07 What is the biggest challenge facing orthodontic institutions today?19:21 Are editorial conflicts of interest a problem in orthodontics?24:40 What real innovation in orthodontics is occurring?29:18 Remote monitoring, evidence, accuracy, and clinical relevance35:53 AI in orthodontics, will it replace skills or enhancing care?40:49 One piece of advice for orthodontists
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Attachments - Mistakes, Errors And Solutions | OrthoDontics In Interview | Linton Nash 
"When we place attachments, we assume they are accurate,  but small errors in volume, location, plaque, or insertion can completely change the force system."
"Sometimes the attachment itself can make movement worse than having no attachment at all."
"I'm not trying to eliminate every error,  I'm trying to control every error we can control."
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.
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.
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.
Linton also shares his research into 3D printed attachments, attachment accuracy protocols, refinement strategies, and the future of aligner mechanics.
🕒 Timestamps of Key Questions & Answers
03:12 What Does VALE Mean in Attachment Errors?
08:40 Which Attachment Errors Have the Biggest Clinical Impact?
15:03 Are We Destined to Work With Errors in Aligners?
18:51 Is There “Play / Slop” Between Aligners and Teeth Like Fixed Appliances?
21:43 Do  Optimized Attachments Work Predictably?
28:14 Should Straight Trim Lines Be the Default?
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?
44:38 Should We Use Lingual Attachments?
47:36 Can Pre-scan Attachments Be The Solution (Universal Attachments by Keejoon)?
50:20 One Piece of Advice for Orthodontists
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The BioprogressiveTheory Revisited  | Orthodontics In Interview |  Sergio Sambataro
 
"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."
 
"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."
 
"Oneof the principles in Class II correction is: first open the bite, and thencorrect the overjet. This is not just mechanics — it is logic."
 
"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."
 
 
I'm joined by Dr. Sergio Sambotaro from Sicily, for adeep dive into Bioprogressive Orthodontics, principles established by Rickettsand still debated today.
 
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.
 
 
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🕒Timestamps of Key Questions & Answers
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?

"If you anticipate, we can reduce the treatment time with aligners."
 
"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."
 
"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."
 
"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."
 
 
The podcast was recorded live at this years European AlignerSociety meeting.
 
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Please visit the website for this interview podcast:
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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
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?

Join me for look at the orthodontic -periodontal interface, the latest evidence looking at the effects of orthodontic tooth movement as well what periodontal surgery can offer in recession management. This podcast is a summary of Christos Kassaro and Anton Spurrier’s excellent lecture, as part of the AngleNet Webinar Series.
 
Timestamp
0:44 – At 1-year recession risks of orthodontics
2:30 – At 15-year recession risks of orthodontics
4:37 – Retainer relapse: "X" & "Twist" effects
5:13 – Biomechanics: Using mixed bracket slots for torque
6:17 – Perio surgery principles & donor sites
7:54 – Flap designs: Full vs. split-thickness
8:14 – Surgical techniques: MCAT vs. LCT
9:27 – Timing: Surgery before vs. after ortho?
10:33 – Surgical adjuncts: Hyaluronic acid
 
 
Orthodonticaetiology at 2 time points:
1.    During active orthodonticmovement 
2.    During retention phase
 
 
Kloukos2025
1year follow up study of adult orthodontic patients Vs  control
·     1 year post debond of non-extractiontreatment at 67% greater incidence of recession within the orthodontic group (IRR = 1.67,95% CI: 1.05, 2.67, P = 0.03). Five main findings:
1.    Recessionlocation: canines and first premolars,
2.    Proclination:incisor proclination of 6.35o with no recession
3.    Recessionin control group: increased but less than orthodonticgroup
4.    Recessionquantity: Generally small at 1 mm
5.    Reductionin recession for some: Both groups showedsome patients had a reversal of their recession
 
 
Long term though what do we see?
·     Gebistorf 2018 Swiss group
·     At 15 years 77% of orthodonticpatients had 1-14 areas of recession,
·     Control group who had 62%.
·     Greater recession on lingual aspectthan labial
·     2.73 x more recession with crossbitescorrected (95% CI, 0.28-5.17; P = 0.029)  
·     Crowding in controls: 3 mm =  3.29 x more recessions (95% CI, 0.73-5.68; P =0.012)
 
Orthodontics onaverage does not compromise long term health or function, but may compromise aesthetics
 
Fixed Braided Retainers
 
‘X’effect (torque) or twist effect (proclination) unwanted movement from wire activation
·     Not relapsed as new movement 
·     Occurrence: 2.7% (n=221 patients) –Renkema 2011
 
Treatment‘X’ effect
 
1-   Differentialslot side
                                     i.     Affectedtooth - .18 slot with -17 degrees of torque
                                   ii.     Remainingteeth.22 slot with 0 torque
                                 iii.     Sideeffect of intrusion of incisor, due to slot differences
 
 
Periodontal Surgery concepts:
Indication: inadequate gingiva = <2 mm Zhong 2025
·     Wound healing
o   Flapdesign to enhance wound stability – avoid vertical releasing incisions
·     Connective tissue graft, harvest itfrom the palate.
o   Keratinizedtissue and quantity
o   Mostavailable, quick healing Karring 1975
o   fibroblastfrom the palate biological potential to inducekeratinization. 
 
 
Surgicaltechniques:
1-   Fullthickness: mucosa, connective tissue and includes periosteal layer
2-   Splitthickness: mucosa and connective tissue
 
·     
Timingof surgery
Surgeryafter orthodontics
·     Only when the teeth are in the correctposition
·     Favorable environment for the woundhealing. 
·     Usual timing of surgery
 
Surgerybefore orthodontics
·     Require more tissue for the orthodonticmovement:
 
Adjuststo surgery
 
1-   Amelogenins attach proteins to the rootsurface. 
2-   Hyaluronicacid promotehealing through attracting proteins. 
 
 
Expert consensus on orthodontic treatment of patients with periodontal disease. Zhong2025
https://pmc.ncbi.nlm.nih.gov/articles/PMC11965299/
 
 
Contributions
Contents:Shanya Kapoor
Editedand produced: Farooq Ahmed