Wol-Ceram All-Ceramics
Clinical Advantages & Procedures

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(08min) Wol-Ceram Intro

(17min) Wol-Ceram Case Study

Course Objectives

This clinical video presentation evaluates the importance and success of Wol-Ceram restorations in general practice and examines the fundamentals that must be mastered to achieve optimum results. Practitioners that complete the presentation will know the following:

The use of the reverse preparation technique to ensure adequate reduction.

Lab fabrication procedures for Wol-Ceram aluminous oxide-based restorations.

The rationale for the two-cord technique and how to use it.

Use of horizontal stick-bite to prevent canting of smile line.

Communicating accurate shade information to the lab.

Comparison of Wol-Ceram to other cementable restorative systems.

The use of soft tissue models to ensure esthetic embrasures.

Using lab-fabricated provisionals to maintain esthetic soft tissue relationships.

About modern porcelains and popular cements.

How to achieve minor tissue recontouring.

Summary

During the last 15 years, all-ceramic restorations have increased in popularity as an restorations probably account for approximately twenty-five percent of the 50,000,000 last year. Even with fifteen years of regular service, there still are aspects of all-ceramic be improved. To produce optimum all-ceramic restorations, it is necessary for dentist closely and communicate accurately via the impression and shade information.

All-ceramic tooth preparations require approximately 1.5 to 2.0 mm of reduction on all surfaces except for Wol-Ceram which can prepared with a feather-edge margin. Strategically placed cuts at these specific depths are quite beneficial in assuring that proper reduction has been accomplished. Without proper reduction, the longevity and overall esthetics of all-ceramic restorations will be negatively affected.

All-ceramic impressions need to be as accurate as possible (a national laboratory association reports that 90% of impressions for full crowns do not include all tooth preparation margins around the entire periphery of the tooth). Provisional restorations need to replicate the morphology of the original tooth or the diagnostic wax-up in order to retain the proper positions of the adjacent and opposing teeth.

Modern ceramics have excellent strength and esthetic characteristics when they are fired no more than 1.5 to 2 mm thick. Porcelain fracture is likely to occur when porcelain is fired thicker than 2.0 mm. Resin reinforced glass ionomers are the most popular cements used today because they are easy to use, strong, relatively insoluble, fluoride releasing and they bond to tooth structure.

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 judgement regarding the need for further clinical testing or education and your own clinical expertise before trying to implement new procedures.

References

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Olsson KG, Furst B, Andersson B, Carlsson GE. A long-term retrospective and clinical
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McLaren EA. All-ceramic alternatives to conventional metal-ceramic
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