An updated comparison of current impression techniques regarding time, comfort, anxiety, and preference: A randomized crossover trial
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Objective: To compare digital and conventional impressions in terms of impression time, and comfort, anxiety, and preference of the patients. Methods: Digital scans (Trios 3 Cart) and conventional impressions (irreversible hydrocolloid material, hand-mixed) were randomly performed on 39 patients by a single experienced operator at 14-21-day intervals (crossover design). The impression time, comfort score with the visual analog scale, anxiety level with the State-Trait Anxiety Inventory, and preference with a questionnaire, were recorded. The 2 techniques were compared with the independent t-test in terms of time, comfort, and anxiety. Patient–operator assessment and time–comfort relationship were analyzed using Pearson’s correlation test. Results: No statistical difference was found between the 2 impression techniques in terms of time (P = .231). Both the operators’ and patients’ comfort scores showed that the digital technique was found to be more comfortable (P < .001). There was no statistical difference between the 2 techniques with regard to anxiety (P = .668). The patients’ and operators’ comfort scores showed a strong correlation (P < .001), but no correlation was found between comfort and time (P > .05). Conclusion: Digital scanning and conventional dental impression were similar in terms of impression time and anxiety of patients. However, patients were more satisfied with the digital technique, and preferred it.
SourceTurkish Journal of Orthodontics
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