5th until the 9th July 2021

A 1-week theoretical and hands-on instrumental analyses course integrating materials science in contemporary orthodontic practice

Zurich, Switzerland

Registration fees

General

CHF1800
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Postgraduate Students

CHF1300
  • Recent dental graduates (5 years from dental school)
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Participation limited to 20 participants
Registration covers:
25 CE hours of theoretical and hands-on seminars on advanced mechanical and surface characterization on materials on prepared orthodontic material and dental hard tissue specimens
A book as a syllabus (worth US $175)
Meals and coffee breaks for the entire duration of the seminar

Continuing Education 25 CE hours

Description

The aim of the course is to provide a thorough, concise, independent from the industry, and clinically-oriented guide to the application of materials in Orthodontics, targeting the practicing clinician who has a limited spectrum of knowledge in the field and wishes to comprehend the mechanisms and effects underlying their use.

The course reviews the applications of biomaterials and their effects on the enamel preparation, bonding, bracket and archwire ligation, mechanotherapy, 3D-printed brackets and aligners, debonding, and long-term enamel structural, color and surface effects, aligners and fixed retainer bonding, and is structured around 3 axes:

  1. Review of the mechanisms accompanying the bonding of appliances or application of aligners to the dental arch;
  2. A guide on how to critically review the information available in the literature on topics related to materials applications (bonding, mechanotherapy, debonding, aligners);
  3. Hands-on training on analytical instrumentation applied onto hard tissue and materials specimens, which extends from molecular analysis (Raman spectroscopy), imaging, and mechanical testing (hardness, modulus, strength).

A guided workflow of designing aligners and polymeric and ceramic brackets and 3D-printing them will also be presented and participants will have a hands-on course on 3D-printing of orthodontic appliances.

PROGRAM

MONDAY (09h00-15h00)

Course: Why materials and mechanics? The stress and strain of materials and tissues in tooth movement

  • Transmission of stress from the appliances to tissues
  • Factors affecting the variation of strain in response to stress
  • Risk groups of patients

Evidence: Analysis of relevant representative RCTs and systematic reviews

Lab rotation: Fundamentals of instrumental analysis (theory)

TUESDAY (09h00-15h00)

Course: The structure of matter: how the world is built around us

  • Atomic arrangement and bonding
  • Crystal structure
  • Imperfections in solids
  • Mechanical properties and failure
  • Structure and properties of metals and ceramics
  • Structure and properties of polymers
  • Fatigue
  • Annealing

Evidence: Meta analyses

Lab rotation: Surface and bulk structure (microscopy and Raman spectroscopy)

Course: 3D printing of appliances and aligners (software, evidence)

  • Workflow
  • Evidence on the properties and biological reactivity of 3d-printed materials

3D-printing hands-on course: designing and printing customized brackets and aligners

WEDNESDAY (09h00-15h00)

Course: Orthodontic alloys and ceramics (brackets, wires, TADs)

  • Metallurgical structure and properties of NiTi and stainless steel alloys
  • Hardness of bracket base and wings: importance on debonding and torque
  • Bracket slot and archwire moduli: the effect on torque expression
  • Archwire nomograms: a method to compare stiffness and range
  • Titanium brackets: the evolution of the appliance and its disadvantages
  • Brackets and archwire corrosion: theoretical models and clinical effects
  • in vivo alterations: unsuitability of in vitro protocols to clinical conditions
  • Ni release: importance and methodological approaches
  • Biocompatibility concerns: study models and relevance to orthodontics.
  • The inefficiency of the pre-adjusted bracket: design and materials aspects
  • Moments and forces with space closure: loops and sliding mechanics
  • Wires for fixed retainers

Evidence:Relevant RCTs and meta-analyses on effects of appliance variables on treatment

Lab rotation: Metallographic preparation (etching, polishing), hardness test

THURSDAY (09h00-15h00)

Course: Orthodontic polymers (adhesives, aligners, appliances, elastomers)

  • Fundamentals of polymerization: monomers and polymerization initiators
  • Classification of orthodontic adhesives
  • Degree of C=C conversion: terminology, research approaches and importance
  • Optical properties: transparency and effects on light curing
  • Residual monomer leaching
  • Bond strength: overview of the testing protocols and its clinical relevance
  • Moisture-insensitive adhesives: effects of hydration on polymer network
  • Photo-polymerization with plasma arc and LED lamps
  • Disadvantages of light-cured, chemically-cured (dual-paste and no-mix), dual-cured and self-etching adhesives
  • Elastomers
  • Bonding of fixed retainers
  • Xeno-estrogenicity and cytotoxicity of polymers
  • Factors influencing stress application with aligners
  • Materials, ageing of polymer and effects of force relaxation of aligners
  • Force levels with aligners and efficiency in movements

Evidence: Relevant RCTs and meta-analyses on effects of appliance variables

Lab rotation:Raman spectroscopy on polymer specimens

FRIDAY (09h00-15h00)

Course: Bonding in orthodontics

  • Enamel etching
  • Priming: the source of errors and defects
  • Alternative enamel preparation
  • The oxygen inhibition of polymerization
  • Enamel alterations associated with bonding
  • Debonding and hazards for the operator
  • Optimizing debonding process
  • Future bonding methods

Evidence:Relevant RCTs and meta-analyses on effects of appliance variables on treatment

Lab rotation: Enamel specimen after debonding: morphology, color, gloss and structure

Coffee breaks and lunch will be provided

INSTRUCTORS

Theodore Eliades

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Spyridon Papageorgiou

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Spiros Zinelis

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Nearchos Panayi

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THE BOOK

Download contents

Orthodontic Applications of Biomaterials

A course on orthodontic materials has been an educational component for several decades to Residents in Orthodontics programs. Currently, a typical US program curriculum includes two credit hours of orthodontic materials’ instruction over a one-semester period. It customarily follows courses on mechanics, a prerequisite in most Orthodontics programs, and is taken by the Residents during their first or second year. The Book:

  • serves as a reference source for the spectrum of biomaterials used in Orthodontics

  • examines the fundamentals of orthodontic materials, with the phenomena presented without the use of “stiff” standard initial chapters on structural/mechanical properties’ relationships that are typically outside of the context of their orthodontic uses

  • provides substantiation for the effects occurring during the utilization of the materials

  • presents the most current state-of-the-art methods of orthodontic materials research

  • clarifies everyday clinical questions of the practitioner by addressing the most common concerns (compiled during the presentation of hundreds of courses/lectures of the editors and contributing authors to professional organizations)

CONTACT INFO

Veronika Thalmann & Partner GmbH
Verbands- & Kongress-Management

Address: Stadtbachstrasse 42A, 3012 Bern, Switzerland

Phone: +41 31 382 2000

Mobile: +41 79 949 26 15

VENUE INFO

Center for Dental Medicine, University of Zurich

Adress: Plattenstrasse 11, 8032 Zurich, Switzerland

Phone: +41446343211