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Crown & Bridge: Clinical Tips for Success

July 1, 2019
Michael DiTolla image
Michael DiTolla, DDS, FAGD

Course Objectives

2 CE Credits

This course presents the rationale and clinical technique for the reverse preparation technique as well as the two-cord impression technique. Analog and digital impression techniques are also presented.

  • Understand the reverse preparation technique for consistently reliable crown preparations
  • Understand the attributes of an acceptable impression and common complicaitons resulting in unacceptable impressions
  • Understand recommended dental instruments and materials


Techniques are presented that help take the guesswork out of achieving the best results from your lab and for your patients — whether PFM, all-ceramic or full-cast restorations. The rapid anesthesia technique will make your patients happier and you more productive. Using the reverse preparation and two-cord impression techniques will allow you to demand and expect the best from your lab.

CAUTION: When viewing the techniques, procedures, theories and materials that are presented, you must make your own decisions about specific treatment for patients and exercise personal professional judgment regarding the need for further clinical testing or education and your own clinical expertise before trying to implement new procedures.

Recognition & Approval

Glidewell Education Center is an ADA CERP Recognized Provider. ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry.

Glidewell Education Center
Nationally Approved PACE Provider for FAGD/MAGD credit
Approval does not imply acceptance by any regulatory authority, or AGD endorsement. 3/1/2021 to 2/29/2024.
Provider ID# 216789

Michael DiTolla image
Michael DiTolla, DDS, FAGD

Dr. Michael DiTolla is a graduate of the University of the Pacific Arthur A. Dugoni School of Dentistry, and he is a fellow of the AGD. After working in private practice for 15 years, he became director of clinical education and research at Glidewell, where he gained an intimate knowledge of U.S. dentists’ crown & bridge habits. From 2006 to 2009, Dr. DiTolla led the clinical team at Glidewell that developed and brought BruxZir® Zirconia to market. In 2011, he received the “Most Effective Dentist Educator” award in a nationwide survey of dentists. Four years later, he became the director of clinical affairs at Dentsply Sirona, and in 2017 he was named the vice president of clinical affairs and communications at AEGIS Communications. Dr. DiTolla has given over 1,000 lectures to dentists worldwide, and his online videos have been viewed more than 10 million times by clinicians.


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  2. Goodacre CJ, Campagni WV, Aquilino SA. Tooth preparations for complete crowns: an art form based on scientific principles. J Prosthet Dent. 2001 Apr;85(4):363-76.
  3. Christensen GJ. Ensuring retention of crowns and fixed prostheses. J Am Dent Assoc. 2003 Jul;134(7):993-5.
  4. Velasquez-Plata D, Andres CJ. The art of crown preparation: a review of principles. J Indiana Dent Assoc. 1996 Fall;75(3):6-11.
  5. Cloud S, Puri S. Using the double-cord packing technique of tissue retraction for making crown impressions. Dent Today. 1999 Jan;18(1):54-9.
  6. Hochman MN. Single-tooth anesthesia: pressure-sensing technology provides innovative advancement in the field of dental local anesthesia. Compend Contin Educ Dent. 2007 Apr;28(4):186-8, 190, 192-3.
  7. Dower JS Jr, Barniv ZM. Periodontal ligament injection: review and recommended technique. Gen Dent. 2004 Nov-Dec;52(6):537-42.
  8. Quinn CL, Injection techniques to anesthetize the difficult tooth. J Calif Dent Assoc. 1998 Sep;26(9):665-7.

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