Questions and Answers
What is a custom provisional?
What term is used for temporary coverage worn during cast-prep?
provisional
What is a preformed object?
Already shaped in the required appearance
What material is used for provisional coverage for primary molars?
Signup and view all the answers
What type of provisional is tooth-colored and commonly used for anterior teeth?
Signup and view all the answers
How long will a patient normally wear a provisional?
Signup and view all the answers
Who can legally fabricate and temporarily cement a provisional in the dental office?
Signup and view all the answers
What type of provisional is the most natural looking?
Signup and view all the answers
What type of provisional can be fabricated for anterior teeth?
Signup and view all the answers
What is required before the dentist prepares the tooth for making a custom provisional?
Signup and view all the answers
What type of dental material would be selected when making a custom provisional?
Signup and view all the answers
What would the dentist select to trim or contour a stainless steel crown outside of the mouth?
Signup and view all the answers
When using a polycarbonate crown as a provisional, would the crown remain on the prepared tooth as the temporary, or act as a mold for the provisional?
Signup and view all the answers
Where is the acrylic resin extruded when preparing a provisional crown?
Signup and view all the answers
Study Notes
Provisional Coverage Overview
- Custom provisional refers to temporary coverage created from a preliminary impression or thermoplastic tray, designed to replicate the prepared tooth.
- Provisional is the term for temporary coverage to be worn during the cast preparation phase, specifically for single crowns or bridges.
Provisional Materials
- Preformed denotes objects shaped beforehand to the required appearance, simplifying the provisional process.
- Stainless steel crowns serve as a thin metal option for provisional coverage, primarily for primary molars.
- Polycarbonate crowns are tooth-colored provisions commonly used for anterior teeth, offering aesthetic appeal.
Provisional Duration and Fabrication
- Provisional coverage is typically worn by patients for 2 to 4 weeks until the final restoration is ready.
- An expanded functions assistant is authorized to fabricate and temporarily cement a provisional in the dental office.
Custom Provisional Characteristics
- The custom type of provisional provides the most natural appearance, tailored to fit the patient’s unique dental profile.
- Preformed polycarbonate crowns can also be fabricated specifically for anterior teeth, combining convenience with aesthetics.
Preparation and Materials
- A preliminary impression is essential before a dentist prepares the tooth for a custom provisional, ensuring accurate fit and design.
- Acrylic resin is selected as the material for crafting a custom provisional due to its favorable properties.
- A sandpaper disk is utilized by the dentist to trim or contour a stainless steel crown outside the patient’s mouth, promoting a precise fit.
Polycarbonate Crown Functionality
- When a polycarbonate crown is used as a provisional, it remains on the prepared tooth and serves as a mold for the final restorative material.
- The acrylic resin is extruded into the thermoplastic tray during the preparation of a provisional crown, ensuring proper shaping and fit.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the essential concepts of provisional coverage in dentistry, including materials, duration, and fabrication techniques. Learn about custom provisions, their characteristics, and the role of dental assistants in the process. Perfect for dental students and professionals seeking to refresh their knowledge.
