What is a requirement of an interim fixed restoration?

An interim fixed restoration serves several essential functions in restorative dentistry, particularly when it comes to managing a patient's dental health during the time between tooth preparation and the placement of a definitive restoration. One of the requirement of an interim fixed restoration is to insulate the prepared tooth surface, which protects the dentin from thermal stimuli. This insulation is crucial because exposed dentin can lead to sensitivity due to changes in temperature.

Additionally, sealing the prepared tooth surface is important as it prevents bacteria and plaque from entering the tooth preparation, which could lead to decay or infection. By providing a barrier, the interim restoration helps maintain the integrity of the tooth and supports oral health.

Moreover, the interim restoration must also prevent sensitivity and further irritation to the pulp. This is particularly important for patients who may experience discomfort or pain due to the exposure of sensitive tooth structures after preparation.

Thus, by fulfilling all these roles—insulating, sealing, and preventing sensitivity—the interim fixed restoration plays a critical role in patient care. Therefore, recognizing that all these functions are integral to the purpose of an interim fixed restoration highlights why “all mentioned” is the most accurate and comprehensive requirement for such restorations.