Provisional coverage is a temporary protective covering that is temporarily cemented to a prepared tooth for a single crown or to abutment teeth for a bridge preparation.
What is a provisional restoration in dentistry?
Provisional restorations offer patients to try-out the look and feel of the final prosthetic and make any necessary changes before the final fabrication and fitting. Unlike temporary prosthetics of the past, modern provisional restorations are highly functional and aesthetically pleasing.
Who fabricates the provisional coverage?
The laboratory indirectly fabricates the provisional on the model and the dentist or assistant relines it directly in the mouth, giving the technique its name. Refer to steps 3 through 8 in the polycarbonate technique.
What is included in the criteria for a successful Provisional restoration?
To facilitate oral hygiene, the provisional must have good marginal adaptation, proper contour, and a smooth surface. This is particularly important when crown margins will be placed apical to the free gingival margin.
What is one disadvantage of using custom provisional coverage?
What is one disadvantage of using custom provisional coverage? It can be the most time-consuming to make. What should be done if the margins of the provisional are not adequate? Additional material is added at the inner aspect of the margin and then the provisional is reseated for setting.
What is the purpose of a provisional crown?
Provisional crowns are a great way to preserve the smile until missing teeth can be permanently replaced. Not only do they function as placeholders, but they also allow patients to see and feel the comfort of the permanent prosthetic.
How long should a patient wear a provisional Why?
The patient wears this provisional coverage to protect the tooth for a short period of time, generally 2 weeks to a month. In cases involving complex treatments such as implants and complex prosthodontic procedures, a longer time may be required.
Why is the provisional placed on the tooth in the patient’s mouth for the final curing stage?
Why is the provisional placed on the tooth in the patient’s mouth for the final curing stage? to avoid excess shrinkage of the provisional during the final curing stage.
What type of provisional coverage provides the most natural looking appearance?
What type of provisional coverage provides the most natural-looking appearance? Custom Provisional.
Which material would be selected for fabrication of provisional coverage?
Preformed Polymer Crowns
Provisional shell-like crowns that are designed specifically for premolars and molars. These shells are made from a polymer material that is designed with anatomic features of natural teeth.
What must be done before the dentist prepares the teeth when fabricating a custom provisional?
(1)Before the tooth preparation, place an acrylic tooth in place of the missing tooth and make an alginate impression or a putty index. (2)Prepare the patient’s teeth in the usual manner.
How long does a provisional crown or bridge normally need to last?
Ideally, temporary crowns must only be used for the period that it takes for the lab to get your permanent crown ready. This is usually between 3 to 21 days. However, a temporary crown can last for much longer than necessary.
Which cement is most can be used with provisional crowns?
In dentistry, temporary cements are used to temporarily bond provisional restorations, which include inlays, onlays, crowns, bridges, and implants. While there are numerous types of temporary cements, the most common types are eugenol-based, non-eugenol based, and resin based.
Which of the following is a benefit of a provisional crown?
Provisional coverage provides the same results as permanent coverage. 2. The patient need not call the office if the provisional is dislodged or lost. 3.No increase in temperature sensitivity is associated with the provisional material.