Restorability and Treatment with the Single-Unit Crown

Category: Dental Materials and Biomaterials, Esthetic Dentistry, Restorative Dentistry
Author(s): R. Paul McGraw DDS, FAGD
Target Audience: Dental Assistants, Dental Hygienists, Dentists
Course Topic: Single-units crowns
Cost: $29.00
ADA Credits: 2
AGD Credits: 2

Restorative dentistry is both art and science used to restore the dentition that is worn, damaged or missing due to disease, injury, age or failure of previously placed restorations and for esthetics. The restorative procedures vary greatly depending on the complexity of the clinical case; the health, finances and desires of the patient; and the preferences of the clinician. The single-unit, full-coverage crown is one of the most common restorations in dentistry.

Educational Objectives

The overall goal of this course is to provide the reader with information on the considerations and procedural steps involved in treatment with a single crown. After completing this article, the reader will be able to do the following:

1. Review the criteria for restorability with a single full-coverage crown.

2. Describe the concept of biologic width, its importance and considerations with respect to crown design.

3. List and describe the steps involved in treatment for a single crown, including the preparation design with respect to general parameters and the restorative material selected.

4. Delineate the main types of impression materials used during treatment for a crown, and describe the impressiontaking techniques that may be used for these materials.

5. Review the steps involved in placement of a temporary restoration and in the luting of a permanent crown.


Treatment with a single-unit crown is one of the more common indirect restorative procedures. Once the restorability of the tooth has been confirmed, and patient acceptance of the proposed treatment plan obtained, a series of proscribed procedures are performed prior to and after fabrication of the crown. Periodontal, anatomical, functional and esthetic factors are all considerations both during treatment planning and during the treatment phase.