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Chairside Live – Case of the Week Compendium 19: Prep & Impression Techniques IX

Dental CE Course – Case Study - Prep & Impression Techniques
Launch Course

Course Objectives (3 CE Credits)

Michael C. DiTolla, DDS, FAGD

In restorative dentistry, the final fit, function and esthetics of a dental prosthesis are due in large part not only to the techniques and materials the clinician employs that ensure adequate tooth preparation and care for the soft tissue, but also to his or her ability to communicate vital intraoral information to the laboratory.

In this presentation, Dr. Michael DiTolla uses a series of case examples taken from episodes of the weekly web series Chairside Live to discuss his preferred techniques for preparing teeth, taking impressions, collaborating with the dental laboratory, and ensuring sufficient retention of the finished prosthesis. Participants who view this presentation will acquire valuable tips on various restorative topics, including:

  • The latest options in strong, esthetic, monolithic materials for the anterior
  • Minimal restorative material thickness vs. recommended thickness
  • Discussions on post-mandibular-block paresthesia
  • Improving the quality of preps and impressions with the Reverse Preparation Technique
  • Ensuring an ample preparation shape and amount on the margin
  • Avoiding undercuts on long bicuspid preparations
  • Attributes of an ideal case submission to a dental laboratory
  • Providing sufficient information to the laboratory for veneers in the esthetic zone
  • Using a study model to customize lab-made prostheses results
  • Techniques for enhancing the retention of an uncooperative bridge
  • Methods for cleaning excess cement after placing a temporary bridge
  • Lowering remake rates with a novel digital workflow


At every point in the multi-step restorative process, the utmost diligence is required from the clinician to ensure the final prosthesis satisfies the functional and esthetic requirements of the patient. Sufficient reduction, adequate care for the soft tissue, a comprehensive impression, and appropriate bonding techniques are all key elements of a successful experience, any of which can be a pitfall to the ultimate outcome if ample attention is not paid.

In this presentation, Dr. Michael DiTolla uses several case examples featured on episodes of Chairside Live to discuss techniques he employs across these various stages that he believes ensure the highest chance for restorative success.

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.


  1. Román-Rodriguez JL, Alonso-Pérez-Barquero J, Bruguera-Álvarez A, Agustín-Panadero R, Fons-Font A. Cleaning and retreatment protocol for a debonded ceramic restoration. J Clin Exp Dent. 2015 Feb 1;7(1):e60-2.
  2. Xiaoping L, Dongfeng R, Silikas N. Effect of etching time and resin bond on the flexural strength of IPS e.max Press glass ceramic. Dent Mater. 2014 Dec;30(12):e330-6.
  3. Lin WS, Ercoli C, Feng C, Morton D. The effect of core material, veneering porcelain, and fabrication technique on the biaxial flexural strength and Weibull analysis of selected dental ceramics. J Prosthodont. 2012 Jul;21(5):353-62.
  4. Kim DH, Son JS, Jeong SH, Kim YK, Kim KH, Kwon TY. Efficacy of various cleaning solutions on saliva-contaminated zirconia for improved resin bonding. J Adv Prosthodont. 2015 Apr;7(2):85-92.
  5. Sweeney S, Smith DK, Messersmith M. Comparison of 5 types of interocclusal recording materials on the accuracy of articulation of digital models. Am J Orthod Dentofacial Orthop. 2015 Aug;148(2):245-52.
  6. Tejo SK, Kumar AG, Kattimani VS, Desai PD, Nalla S, Chaitanya KK. A comparative evaluation of dimensional stability of three types of interocclusal recording materials-an in-vitro multi-centre study. Head Face Med. 2012 Oct 5;8:27.
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