An observational study in Preference, Patient, sponsored by Cardenal Herrera University. Completed at 1 site in Spain. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-12.
Sponsored by Cardenal Herrera University · Observational
Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →
The study was aimed to compare both digital and conventional impression techniques by having the same patient undergo both impression techniques in the maxilla.
Objectives:
Primary:
Secondary:
Methodology:
Study type: observational study. Sample size: 112.
Inclusion criteria:
Exclusion criteria:
Study subjects will be from the patients of the master's degree in Oral Surgery and Oral and Facial Implantology at the University Dental Clinic of CEU Cardenal Herrera University in Valencia, who will be undergoing treatment in the department and getting the impressions taken as part of the standard protocol of the department. Participants willing to participate will have to meet the established inclusion and exclusion criteria.
A crossover observational study is established to determine which impression method the patient prefers: the use of the traditional impression method or the use of an intraoral scanner. Both techniques will be applied to each patient in the maxilla. The technique used first will be following an alternating order. The patient will be asked to complete a questionnaire following the application of each procedure (Annex 1).
Variables:
Statistical Analysis:
Data analysis will be performed using Python 3.13.5, with NumPy 2.3.5, SciPy 1.17.0, and statsmodels 0.14.6. Descriptive statistics will be calculated for all variables. Continuous variables will be presented as means and standard deviations. Comparisons between digital and conventional impression techniques will be performed using paired Student's t-tests, with statistical significance set at p \< 0.05.
114 studies on the registry are indexed under Patient Preference; 28 are open to participants now.
This study's enrollment of 112 is below the median of 200 across 56 observational studies indexed under Patient Preference.
Browse Patient Preference studies →Cardenal Herrera University is the lead sponsor of 108 studies on the registry; 22 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Local patients who attended the UCH CEU dental clinic department of oral surgery.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
The participant received both digital and conventional dental impression techniques.
Pain During Dental Impressions Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Temperature Discomfort During Dental Impressions Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Pressure Discomfort During Dental Impressions Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Nausea During Dental Impressions Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Satisfaction With Impression Procedure Duration Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Willingness to Repeat the Impression Procedure Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Overall Satisfaction Measured Using a 0-10 Visual Analog Scale
Time frame: Day 1, immediately following each impression procedure (conventional and digital).
Participant Preference for Conventional or Digital Impression Technique Assessed Using a written categorical preference
Time frame: Day 1, immediately following both impression procedures (conventional and digital).
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: Undecided
Ran from May 2024 to primary completion in Mar 2025, 10 months.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.