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Chairside Live – Case of the Week Compendium 11: Prep and Impression Techniques VI

Prep and Impression Techniques VI - CE Course
Launch Course

Course Objectives (2 CE Credits)

Michael C. DiTolla, DDS, FAGD

Although chairside conditions present unique challenges in every dental restorative case, adopting standardized methods for preparing teeth and taking conventional impressions can remove many unwanted variables that may compromise the fit or function of the final restoration.

In this presentation, Dr. Michael DiTolla uses a series of case examples taken from episodes of Chairside Live to discuss effective techniques for ensuring dentition is appropriately prepared for the prescribed prosthetic material, and impressions accurately communicate the details of the oral environment to the laboratory. Participants who view this presentation will acquire useful clinical information on topics including:

  • Creating the ideal arch form during veneer preparation
  • Minimum reduction requirements for various restorative materials
  • The Reverse Preparation Technique
  • The Two-Cord Impression Technique
  • Capturing quality impressions of areas below the margin
  • Decontaminating salivary phosphates after try-in
  • The pros and cons of bonding vs. cementing
  • Effects of endodontic drilling through a monolithic restoration
  • Laboratory design services available for partial denture preparation
  • Training esthetic ovate pontic receptor sites from same-day extractions
  • Communicating bite relation for partially edentulous arches
  • Maintaining the centric stop in full-mouth rehabilitation cases
  • Fabrication of an all-zirconia full-arch implant prosthesis


Achieving patient satisfaction in restorative dentistry may appear problematic due to the myriad variables that must be managed. However, by implementing techniques that provide predictable results, understanding the requirements, pros and cons of available restorative materials, and accurately communicating the oral environment to the laboratory, a clinician can increase the likelihood that the final restoration will exceed the esthetic and functional requirements of the patient.

In this presentation, Dr. Michael DiTolla uses several case examples featured on episodes of Chairside Live to discuss various techniques for ensuring teeth are adequately prepared and impressions are error-free, alleviating much of the speculation and guesswork that may otherwise be intrinsic to the case.

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. Jalalian E, Rostami R, Atashkar B. Comparison of chamfer and deep chamfer preparation designs on the fracture resistance of zirconia core restorations. J Dent Res Dent Clin Dent Prospects. 2011 Spring;5(2):41-5.
  2. Faus-Matoses I, Solá-Ruiz F. Dental preparation with sonic vs high-speed finishing: analysis of microleakage in bonded veneer restorations. J Adhes Dent. 2014 Feb;16(1):29-34.
  3. Jankar AS, Kale Y, Kangane S, Ambekar A, Sinha M, Chaware S. Comparative evaluation of fracture resistance of ceramic veneer with three different incisal design preparations – an in-vitro study. J Int Oral Health. 2014 Feb;6(1):48-54.
  4. Souza RO, Özcan M, Pavanelli CA, Buso L, Lombardo GH, Michida SM, Mesquita AM, Bottino MA. Marginal and internal discrepancies related to margin design of ceramic crowns fabricated by a CAD/CAM system. J Prosthodont. 2012 Feb;21(2):94-100.
  5. Palaskar JN, Murali R, Bansal S. Centric relation definition: a historical and contemporary prosthodontic perspective. J Indian Prosthodont Soc. 2013 Sep;13(3):149-54.
  6. Campbell S. Technique Tips – a simplified method of recording centric relation contact position (CRCP) using the leaf gauge. Dent Update. 2013 Nov;40(9):780.
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