EVALUATION OF A WETTING AGENT AS AN ADJUNCT FOR TAKING DENTAL IMPRESSION

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The subjects must need a crown due to fractured tooth structure or decay. Teeth will be prepared with high speed handpiece & diamond cutting bars & an impression made of the remaining tooth. A dental impression is made when a tray filled with soft material is placed into the patient's mouth & over the drilled tooth & allowed to harden. After the impression hardens, it is removed from the oral cavity. Two impressions will be made of the teeth: one with the wetting agent & one without the wetting agent. Both impressions will be sent to a dentist who will fit both of them on the patient's tooth (one at a time). The best crown will be cemented permanently onto the patient's tooth. The assessment of the fit of the restoration will be used to determine the accuracy of the impression material with & without the wetting agent. The wetting agent is a Class I, non-significant risk device, meaning the FDA does not require 510(k) approval or an IDE number.

RCMAR Database