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Intraoral Scanning Versus Alginate Impressions in Dental Students
Sponsor: Hue University of Medicine and Pharmacy
Summary
Dental impressions are used to create a record of a person's teeth and oral structures. Conventional impressions are made using impression material placed in a tray, whereas digital impressions are obtained using an intraoral scanner. This randomized clinical trial compared conventional alginate impressions with digital intraoral scanning using the TRIOS 3 and Medit i700 scanners among dental students aged 18 to 24 years. Participants were randomly assigned to one of the three impression techniques. Each participant underwent recording of both the upper and lower dental arches using the assigned technique. The study primarily compared the chairside time required for each technique and the participants' experience immediately after the procedure. Comfort, nausea, breathing, pain, dry-mouth sensation, perceived procedure speed, overall satisfaction, and preference for conventional or digital impressions were also evaluated.
Official title: Procedure Time and Patient Comfort of Intraoral Scanning Versus Alginate Impressions Among Dental Students: A Randomized Clinical Trial
Key Details
Gender
All
Age Range
18 Years - 24 Years
Study Type
INTERVENTIONAL
Enrollment
171
Start Date
2025-05-01
Completion Date
2025-08-31
Last Updated
2026-07-15
Healthy Volunteers
Yes
Conditions
Interventions
Conventional Alginate Impression
Maxillary and mandibular conventional impressions were obtained using Tropical alginate impression material and stock trays. The alginate was mixed, placed in the impression tray, and used according to the manufacturer's instructions.
TRIOS 3 Intraoral Scanner
Maxillary and mandibular full-arch digital impressions were obtained using the TRIOS 3 intraoral scanner according to the manufacturer's recommended scanning protocol. A bite-registration scan was also obtained.
Medit i700 Intraoral Scanner
Maxillary and mandibular full-arch digital impressions were obtained using the Medit i700 intraoral scanner according to the manufacturer's recommended scanning protocol. A bite-registration scan was also obtained.
Locations (1)
Faculty of Odonto-Stomatology, University of Medicine and Pharmacy, Hue University
Huế, Vietnam