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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
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| digital impression | Experimental |
| |
| conventional impression | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| digital impression | Procedure | complete arch implant impression with intraoral photogrammetry |
|
| Measure | Description | Time Frame |
|---|---|---|
| Vision and tactile score for evaluating passive fit of metal framework | Five aspects are evaluated, each aspect is scored as 0 or1. The score ranges from 0 to 5 points. 1、Framework rocking upon seating?2、 Gap assessment with single screw test. The method utilized an explorer with an approximately Ø60-µm tip to evaluate the margins of the metal framework.3、 Gap assessment with all screws tightened. 4、Are the screws threading smoothly? 5、Radiographic assessment of framework fit (check for gaps). | 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) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Shanghai ninth people's hospital | Shanghai | China |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Sep 14, 2025 | Jun 7, 2026 | Prot_SAP_001.pdf |
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| ID | Term |
|---|---|
| D007575 | Jaw, Edentulous |
| ID | Term |
|---|---|
| D007571 | Jaw Diseases |
| D009140 | Musculoskeletal Diseases |
| D009057 | Stomatognathic Diseases |
| D009066 | Mouth, Edentulous |
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| conventional impression | Procedure | conventional open tray splint impression |
|
| D009059 |
| Mouth Diseases |
| D014076 | Tooth Diseases |