Freehand Diastema Closure

Dec. 7, 2023 at 4:00 PM - 6:30 PM

Robert C. Margeas, DDS, FAGD
Subject: 250 Operative Restorative Dentistry
Course Type: Hands-on Participation Course
Credits: 2.5
Thursday, Dec. 7: 4–6:30 p.m. CST
Audience: Dentists
Fee: $329 (members); $469 (nonmembers)


When closing midline diastemas with composite, it can be a challenge to achieve proper width, marginal staining, gingival emergence profiles and overhangs. Matrix bands can produce long, flat contacts, and wedges may lead to unsightly black triangles. This live virtual hands-on participation course focuses on Dr. Margeas’ simplified technique that quickly establishes ideal width, proximal contacts and contours without removing any tooth structure and requires minimal finishing. Learn and perform polishing and surface texturing that will further produce predictably natural-looking long-term restorations.

Learning Objectives 

  • Learn how to use the pull-through technique for tight diastema contacts.
  • Learn a finishing and polishing technique to prevent white lines.
  • Learn the ideal technique for shade selection.

 Registration Closed

Speaker Bio   

Robert C. Margeas, DDS, FAGD, graduated from the University of Iowa College of Dentistry in 1986 and completed his advanced education in general dentistry residency the following year. He is currently an adjunct professor in the Department of Operative Dentistry at the University of Iowa. He is board certified by the American Board of Operative Dentistry. He is a diplomate of the American Board of Aesthetic Dentistry and a Fellow of the Academy of General Dentistry, American Society for Dental Aesthetics, and International Team for Implantology. He has written numerous articles on esthetic and implant dentistry, and he lectures and presents hands-on courses nationally and internationally on those subjects. He is currently the editor-in-chief of Inside Dentistry, a member of the editorial board of Compendium and a contributing editor to Oral Health in Canada. His memberships include the OKU Honor Dental Society, American Academy of Esthetic Dentistry and American Academy of Restorative Dentistry. Margeas maintains a full-time private practice focusing on comprehensive restorative and implant dentistry in Des Moines, Iowa.

Course Preparation

Before you begin, please become familiar with your technique kit contents and organize them for easy use during the course. Your technique kit includes: 

  • Six anterior diastema closure model.
  • Matrix impression material, dental adhesive.
  • Universal restorative composite, composite blending.
  • Composite brush.
  • Composite instrument.
  • All surface access polishers (pre-polisher, large and final high shine polisher, large).
  • 0.5-inch finishing and polishing discs, polishing paste (in unit dose).
  • Dappen dish, microbrush, mylar strips.
  • One mandrel and one composite sample pack.

Also, prepare and have ready these required materials (not included in the kit): 

  • Slow-speed handpiece.
  • High-speed handpiece.
  • Compule dispenser.
  • Air/water syringe.
  • Curing light.
  • Gauze.
  • Alcohol.
  • Loupes.
  • Fine football diamond.
  • Pencil.

Additional Information

This course is in collaboration with Hands-OnLine Live. Registration closes Nov. 27. This course is limited to 50 attendees. The price of the material kit is included in the registration. Shipment addresses will be collected and shared with Hands-OnLine Live for kit shipments only and will not be used for promotional purposes. 

Cancellation Policy

This course is nonrefundable. Registrants unable to attend the live virtual hands-on participation course can watch the on-demand version in the AGD Online Learning Center for 2.0 lecture CE credits. The on-demand course is only available to registrants who purchase the live virtual hands-on participation course and will be made available for 30 days of unlimited viewing in the AGD Online Learning Center.

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