All Ceramic Crown Tooth Preparation and Provisional Crown Fabrication
|5099||December 6, 2009||5|
This is a 30-minute instructional video-recording depicting the step-by-step procedures, performed in real time by the author, required for the preparation of a maxillary central incisor for an all-ceramic full coverage restoration and the fabrication of a provisional restoration in a mannequin. The recording is divided into two parts. The first part lasts 19 minutes and it outlines the ten sequential steps involved in an all-ceramic tooth preparation: 1.) fabrication of a heavy polyvinylsiloxane matrix for later fabrication of the provisional restoration; 2.) demonstration of the armamentarium required for the tooth preparation; 3.) correct positioning of the mannequin along with the optimal positioning of the operator's body while performing the task; 4.) cutting of the facial and incisal depth grooves; 5.) incisal preparation; 6.) facial preparation; 7.) lingual preparation; 8.) interproximal preparation; 9.) preparation of finishing line; and 10.) finishing of the preparation.
The second part of the video lasts 11 minutes and is divided into four segments depicting the fabrication of the provisional restoration for the prepared tooth: 1.) demonstration of the armamentarium used for the procedure; 2.) handling of the materials used for the provisional restoration; 3.) adjustment of the restoration using burs and; 4.) the final assessing and polishing of the restoration. Detailed narration accompanies the video's content throughout all of its 14 segments.
Dental students have complained about how difficult it was for them to visually appreciate the live demonstrations taught in the simulation clinic since the mannequin's oral cavity is small. They had to take sequential turns during these demonstrations in order to be able to get close enough to their Instructor while he or she was performing a particular task. As such, it was rare for each student to be able to watch their Instructor perform a given procedure from start-to-finish. While having an inadequate field of view is an issue for any dental procedure that students are attempting to learn, it can be a particular hindrance in Fixed Prosthodontics. Students need to appreciate critical concepts in tooth preparation including: 1.) the proper positioning of the handpiece and burs to prevent overtapering of opposing walls of a particular tooth or the creation of undercuts at the internal line angles, 2.) the use of indirect vision when preparing the lingual wall of a tooth or when assessing the marginal fit or a restoration, and 3.) the ability to precisely determine how much of the tooth structure has been removed for a given restoration. Therefore, the creation of an instructional aide that will help to alleviate the issue of a lack of visual access is warranted. Over the past few decades, new technology has been introduced into the dental classroom setting including the use of instructional video and computer-based simulation. Previous studies on these as preclinical teaching aids have reported favorable results both in terms of student attitudes and learning outcomes. Video can be especially beneficial if students have the opportunity to refer back to the material repeatedly. Although instructional videos have been developed in dentistry, none of these have involved the demonstration of an all-ceramic tooth preparation and/or provisional crown fabrication.
Aragon C. All ceramic crown tooth preparation and provisional crown fabrication. MedEdPORTAL Publications. 2009;5:5099. http://dx.doi.org/10.15766/mep_2374-8265.5099
- To be able to restore single tooth defects and aesthetic problems, including the selection of materials and techniques.
- To be able to manage patients who have partial tooth loss.
- To be able to manage or perform restorative procedures for treatment of non-vital teeth or broken down teeth in the aesthetic region.
- To be able to fabricate and assess a provisional prosthesis.
- To be able to use currently available interim restoration materials and techniques.
- To be able to function in a simulated clinic setting, complying with specific fixed prosthodontic clinical protocol.
- Provisional Restoration, All-Ceramic Crown, Dental Cavity Preparation, Dental Restoration
Prior Scholarly Dissemination
This information is made available under the Creative Commons license.
Aragon CE, Zibrowski EM. Does exposure to a procedural video enhance preclinical dental student performance in fixed prosthodontics? J Dent Educ 2008;72:67-71.
Authors & Co-Authors
University of Western Ontario
Sponsorship or Funding Source
The production of this video was made possible in part by financial contribution from Straumann Canada.