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Chairside Live – Case of the Week Compendium 5: Prep and Impression Techniques II

Prep and Impression Techniques
Launch Course

Course Objectives (2 CE Credits)

Michael C. DiTolla, DDS, FAGD

In order to achieve the highest level of functional and esthetic success in restorative dentistry, a clinician’s ability to adequately prepare and effectively communicate the particulars of the prep to the dental laboratory is of paramount importance. In this presentation, Dr. Michael DiTolla uses case examples taken from his web series Chairside Live to highlight techniques to adopt and pitfalls to avoid in order to ensure this consistency in preparation and accuracy in laboratory interaction. Participants who view this presentation will acquire useful clinical information on topics of restorative preparation, including:

  • Inlays/onlays vs. crown restorations
  • Customizing the Reverse Preparation Technique to suit your needs
  • Tools for tissue contouring
  • The balance between quality and efficiency
  • Tray materials, types and arches
  • Impressions using multiple materials of various viscosities
  • Determining the adequacy of an elastomeric impression
  • Reduction copings and prep guides
  • The VITA Linearguide 3D-Master® (Vident™; Brea, Calif.)
  • Veneering materials and cementation strengths
  • The ideal lag time between preparation and cementation
  • Troubleshooting fractured restorations
  • Opportunities for, and staying motivated with, continuing education

Summary

The level of functional and esthetic success achieved with a dental restoration is due in no small part to the techniques the clinician employs to prepare and capture an impression of the working dentition. Dentists who habituate methods of ensuring sufficient preparations, choose proper tray and elastomeric materials, and learn to identify impression shortfalls will be better positioned to attain clinical success and patient satisfaction. In this presentation, Dr. Michael DiTolla uses several case examples featured on Chairside Live to discuss his preferred techniques for obtaining the best possible restorative results through these procedures.

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.


References

  1. Schaefer O, Schmidt M, Goebel R, Kuepper H. Qualitative and quantitative three-dimensional accuracy of a single tooth captured by elastomeric impression materials: an in vitro study. J Prosthet Dent. 2012 Sep;108(3):165-72.
  2. Rajapur A, Dixit S, Hoshing C, Raikar SP. The influence of tray space and repeat pours on the accuracy of monophasic polyvinylsiloxane impression. J Contemp Dent Pract. 2012 Nov 1;13(6):824-9.
  3. Ceyhan JA, Johnson GH, Lepe X. The effect of tray selection, viscosity of impression material, and sequence of pour on the accuracy of dies made from dual-arch impressions. J Prosthet Dent. 2003 Aug;90(2):143-9.
  4. Paravina RD. Performance assessment of dental shade guides. J Dent. 2009;37 Suppl 1:e15-20.
  5. Corcodel N, Rammelsberg P, Jakstat H, Moldovan O, Schwarz S, Hassel AJ. The linear shade guide design of Vita 3D-master performs as well as the original design of the Vita 3D-master. J Oral Rehabil. 2010 Nov;37(11):860-5.
  6. André CB, Aguiar TR, Ayres AP, Ambrosano GM, Giannini M. Bond strength of self-adhesive resin cements to dry and moist dentin. Braz Oral Res. 2013 Sep-Oct;27(5):389-95.
  7. Mazurek K, Mierzwińska-Nastalska E, Molak R, Kożuchowski M, Pakiela Z. Strength and thickness of the layer of materials used for ceramic veneers bonding. Acta Bioeng Biomech. 2012;14(3):75-8.
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