Crown & Bridge Source - October 2012 - (Page 10)

techniques article P REPARATION AND C EMENTATION D ENTAL T REATMENT By Trey White, DDS and Shannon Brinker, CDA FOR E STHETIC FREE 1 CEU COURSE CREDIT! The CPS Evaluation Team combine the whole team consisting of dentists, assistants, hygienists, patient coordinators and the dental laboratory for review of this product. CPS produced the following comments and reviews following its evaluation. T oday, an increasing number of products are being introduced to help dentists and their teams satisfy patient expectations for highly esthetic treatments. It’s not surprising, then, that staying abreast of the different preparation and cementation requirements of various esthetic materials can be challenging. For example, the preparation guidelines and cementation recommendations for high-strength materials are different than those for glass ceramics. What also affects preparation and cementation guidelines is where in the mouth the treatments are being performed (e.g., anterior or posterior). Other considerations include how thick or thin the restorations are. Generally speaking, esthetic all-ceramic restorations require no angles or sharp edges, and the shoulder preparations should have rounded inner edges and/ or deep chamfer preparations. The type of restoration and material being used will ultimately determine the preparation dimensions.1 For cementation and adhesive protocol, selecting the ideal material and technique, as well as performing the steps properly, are important to achieving long-lasting clinical outcomes. Interestingly, all factors in the process, preparation design and material selection influence each other, and likewise cementation and adhesive selection. Adhesive preparations that are non-retentive and typically have tapers greater than 8° require adhesive resin cements for adequate retention. When preparations are retentive and have a taper of between 4° and 8°, cases can be either adhesively or conventionally cemented.2 case. The restorative team must know how to correct complex esthetic and functional problems. This places a greater emphasis on the need for detailed and thorough communication between the dentist, laboratory technician, and the dental assistant for formulating a solid treatment plan.3 Of paramount importance to developing a treatment plan that can subsequently be used to identify the needed restorations, preparation guidelines and cementation/ adhesive requirements is an extensive records appointment with the patient. Items to be obtained during the records appointment include a full series of x-rays, panoramic x-rays, study models, facebow transfer, centric relation bite record, temporomandibular joint occlusal examination findings, digital photography, quality impressions, and periodontal charting. COMMUNICATION REQUIREMENTS FOR DETERMINING PREPARATION & CEMENTATION CRITERIA The first step in determining any of these aspects of an esthetic dental treatment is communication between the restorative team, the dental laboratory, and the patient Digital photography allows the dentist in order to establish an understanding of to show the laboratory technician the the direction and ultimate goals for the position of the teeth relative to the patient’s Figure 1. Tip down photo to show the relationship to the incisial edges to the lip. Note the existing restoration fractured bridge 6-8. Figure 2. Pre-operative impressions using EXA’lence Impression material, GC America. Figure 3. Contour Healing Abutment Yellow 4.3 Side 150x150 Figure 4. Final Impressions with GC America EXA’lence Heavy Body and Light body wash. Figure 5. Provisional restorations fabricated with Structure 2 by Voco America and cemented with GC Fuji TEMP LT, GC America. Figure 6. Whip Mix, and EXABITE II, GC America. CE CREDIT: All participants scoring at least 80% on the examination will receive a certificate verifying 1 CEU Credit. To take the test and receive credit, or request a sample please go to http://cpsmagazine.com/one-ce-credit-preparation-and-cementation 10 Fax Your Order: 1.800.732.7023 24 Hours http://www.cpsmagazine.com/one-ce-credit-preparation-and-cementation

Table of Contents for the Digital Edition of Crown & Bridge Source - October 2012

Crown & Bridge Source - October 2012
Table of Contents
Camlog
ARUBA
CE Course for Dental Assistants
Dentsply
DMG America
Doxa
Equipment
GC America
Henry Schein Brand Products
Henry Schein Financial Services
Heraeus Kulzer
Hu-Friedy
Microcopy
Minimark
Office Supplies
Pentron Clinical
Premier
Zirlux

Crown & Bridge Source - October 2012

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