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?
