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Indirect bonding transfers. Aligner treatment. Aligner modeling
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Stefano Negrini
Course details
Course lessons
Course lessons
Lecturers
Reviews
Details
4 lessons (5h 42min)
English
Description
Online practice on aligners and indirect bonding transfer tray manufacturing using 3D Shape Ortho Analyzer!
– During the THEORY and PRACTICE you will improve the following skills:
– Work with digital study models
– File management
– Indirect bonding transfer tray modeling and manufacturing
– Aligner modeling
– Attachment modeling.
The instructor is Stefano Negrini - dental technician-pioneer in the use of digital technologies in orthodontics.
Lesson 1.Indirect bonding transfer tray. Part I
– Introduction to digital technologies
– Bracket placement on the maxilla and the mandible manually and automatically
– The principles of creating an occlusal plane
– Correction of the rotation center
– The recreation of separate teeth and gingiva manually
– Failure and mistakes prevention when working in 3Shape
– Arch shape placement
– Bracket movement: control, changing of the position and torque
– Ways to combine brackets from different libraries
– Managing the position of the tooth and bracket
– Identifying the correct bracket position in relation to the ginigva and detecting the premature contact between brackets and antagonist teeth
– Plan validation
Lesson 2.Indirect bonding transfer tray. Part II
– The principles of communication between the doctor and the lab
– Creating bracket transfer master model
– Working with virtual articulator
– Cheking the occlusion and workflow settings
– Control of the vertical dimension to avoid inter-occlusal interference
– Cutting the model and getting the text on the model
– Composite to relise a model
– Materials for printing the model
– Printing machines for the lab.
Lesson 3.Aligner treatment
– Aligner treatment planning: important information for the lab
– Biomechanics of teeth movement: rotation, angulation, inclination
– Dental arch analysis
– Brackets and aligners: the difference in mechanics
– Expantion vs distalization by aligners
– Crowding and aligners: tactics in simple, moderate and advanced cases
– Managing the timeline
– Correction of occlusal and interproximal contacts: notes for doctors
– Overbite and overjet control
– Lingual attachments.
Lesson 4.Aligner modeling
– Midline misalignment: tactics
– Movement limitation when using aligners:
- inclination - angulation
- rotation
- torque
- distalization - mezialization
- intrusion - extrusion.
– "Screwdriver" effect
– Management of different attachments:
- The best positioning on the tooth
- Different shapes for different movements.
– Prevention of the wrong effect
– Transfer tray for attachments
– Calculating the number of aligners
– Model set comparison: control of the changing.
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Orthodontics
Lecturers 1
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Certified Dental Technician specializing in digital orthodontics, CAD/CAM orthodontic appliances, indirect bonding solutions, and clear aligner technology. CEO and Founder of Ortodonzia Estense Ltd in Ferrara, Italy, an orthodontic dental laboratory, education center, and product development company focused on innovative digital orthodontic technologies.
Over 30 years of experience in orthodontic laboratory techniques with transition from traditional analog methods to comprehensive digital workflows. Pioneer in digital orthodontics in Italy, developing systematic protocols for 3D-printed and milled orthodontic appliances including functional appliances (Herbst, Fränkel, Twin Block), retainers, indirect bonding trays, and clear aligner systems. Expert in digital design software and decision-making between milling versus 3D printing for different appliance types.
Chairman of ORTEC (Association of Italian Orthodontic Technicians, 2015-2016). Recipient of the Aldridge Medal Award from the OTA Orthodontic Technicians Association, United Kingdom (2018), recognizing outstanding contributions to orthodontic technology. Key Opinion Leader (KOL) for 3Shape since 2009. International lecturer and educator presenting throughout Europe, Asia, and Americas on digital orthodontic workflows, appliance design, and laboratory-clinician collaboration. Author of multiple articles in orthodontic technology journals on digital solutions and innovative appliance fabrication.
Certified Dental Technician. Master's degree in Orthodontic Laboratory Techniques (SDT - Specialista in Dispositivi di Tecnica Ortodontica) from University of L'Aquila, Italy (2011-2012). Master's degree in Digital Dental Solutions from Marconi University, Rome, Italy (2015-2016). Founder of Ortodonzia Estense in 1992, initially specializing in fixed, removable, functional, and orthopedic appliances before transitioning to digital-focused practice.
Organizer
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