Evaluation of Impression Accuracy: Digital Scanner Versus Analog Technique (NCT07252869) | Clinical Trial Compass
CompletedNot Applicable
Evaluation of Impression Accuracy: Digital Scanner Versus Analog Technique
Italy51 participantsStarted 2017-07-15
Plain-language summary
The goal of this study is to evaluate the accuracy of intraoral impressions obtained using the Trios 3Shape® and Carestream CS 3600™ scanners, as well as traditional analog impressions using polyvinyl siloxane (PVS), in comparison to a gold standard represented by a laboratory scanner in 51 dental models from 42 patients affected by partial edentulism who required at least two implants.
Researchers compare Trios 3Shape®, Carestream CS 3600™ and polyvinyl siloxane (PVS) to see if there is a different accuracy.
Who can participate
Age range
18 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Age between 18 and 80 years;
* Implant placement in healed bone sites (at least 8 weeks post-tooth extraction or at least 6 months after regenerative procedures), allowing guided implant insertion of at least 3.3 mm in diameter or 8.5 mm in length;
* Implant site without ongoing infections or dental extraction residues;
* Good systemic health conditions and adequate oral hygiene;
* Periapical and periodontal health of opposing teeth/implants in occlusion;
* Edentulism of at least two adjacent dental elements.
Exclusion Criteria:
* Ongoing diseases requiring prolonged use of corticosteroids;
* Leukocyte dysfunction or deficiencies;
* Severe hemophilia;
* Current pregnancy;
* Past and/or current head/neck radiotherapy and/or chemotherapy;
* Renal insufficiency;
* Past and/or current use of bisphosphonates;
* Uncompensated endocrine disorders;
* Physical disabilities preventing adequate oral hygiene;
* Alcohol abuse and drug use;
* Smokers (\>10 cigarettes/day);
* Untreated periodontitis;
* Mucosal diseases (e.g., erosive Lichen Planus);
* Severe parafunctional habits (e.g., bruxism or clenching);
* Persistent intraoral infections;
* Allergies or adverse reactions to restorative materials;
* Completely edentulous arches;
* Limited mouth opening;
* Inadequate oral hygiene or lack of motivation for self-care;
* Uncontrolled systemic diseases;
* Untreated or chronic oral cavity diseases;
* Fully edentulous arches.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Clinical and radiological evaluation of soft tissues and bone level in implant supported rehabilitations performed with Flapless Computer-Guided implantology. A prospective clinical study.
Timeframe: Patients included in this prospective study were recruited from 2017 to 2022