Comparison of Accuracy of Full-arch Implant Digital and Conventional Impressions.
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: digital impression, conventional impression.
- Who it may be relevant to
- Registry conditions: Edentulous Jaw. Basic parameters: 30 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Comparison of the Accuracy of Digital and Conventional Impression in Edentulous Arch
Overview
The goal of this clinical trial is to determine whether the accuracy of digital impressions is comparable to conventional impressions. It will also learn about the clinical effect of different method. The main questions it aims to answer are: Does drug ABC lower the number of times participants need to use a rescue inhaler? What medical problems do participants have when taking drug ABC? Researchers will compare digital impression to conventional impression to see if the accuracy of the digital method. Participants will: Take an impression with one of the methods Visit the clinic a total of 6 times for checkups and tests
Interventions
- Procedure digital impression
complete arch implant impression with intraoral photogrammetry - Procedure conventional impression
conventional open tray splint impression
Primary outcome measures
- Vision and tactile score for evaluating passive fit of metal framework [Time frame: Periprocedural: At the time of the titanium framework try-in: the try-in of the framework to the patient is before final delivery. (The delivery of the final prosthesis is the baseline)]
Eligibility criteria
Inclusion criteria
- Aged 30-80 years (inclusive) with no gender restriction.
- Patients who will receive a full-arch one-piece implant-supported fixed
- permanent restoration in the maxilla or mandible.
- Patients with osseointegrated implants after surgery.
- Patients voluntarily participate in the trial and sign the informed consent form.
Exclusion criteria
- Patients with insufficient interarch space in the posterior region for impression coping placement.
- Patients with minimal inter-implant distance may prevent impression coping installation.
- Patients with temporomandibular joint (TMJ) disorders are unable to maintain prolonged mouth opening for impression procedures.
- Other conditions deemed ineligible for inclusion by the investigator.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Triple blind
- Primary purpose
- Treatment
Study locations
China · 1 center
- Shanghai ninth people's hospital — Shanghai
Identifiers
NCT: NCT07190820 · SH9H-2025-T290-1