Purpose: To compare the quality of impressions made with a cordless gingival displacement procedure versus impressions made with a corded technique. The devices and materials used in both procedures are FDA-approved, marketed, and will be used according to label. Participants: Approximately sixty (60) adult patients who are treatment planned for indirect restorations (crowns) at the UNC School of Dentistry. Procedures (methods): Participants will be randomized to receive either the cordless gingival displacement procedure (Aquasil Ultra Cordless, Dentsply), or the corded technique (Ultrapak, Intradent) followed by impression with Aquasil Ultra, Dentsply. Participants will complete the Faces pain scale. Impressions will be photographed, digitally scanned, and evaluated.
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Percentage of Errors in Impressions Made for Indirect Restorations
Timeframe: Through impression completion, an average of 10-20 minutes or when impression material is completely set
Mean Time Required to Make the Impression
Timeframe: Through impression completion, an average of 10-20 minutes or when impression material is completely set
Mean Patient Discomfort Scores
Timeframe: From start of visit until the end of the visit, approximately 3 hours