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Peri-implant Mucosal Changes After Provisional Crown Removal

This observational study is looking at how the gum tissue around a dental implant changes temporarily after a provisional (temporary) crown is removed. Researchers want to understand how quickly these gum changes happen, especially when preparing to make a new, permanent crown. You might be able to join if you have a dental implant and a temporary crown in your upper front jaw that has been in place for at least four months, and the tooth next to your implant is a natural tooth. The study will use an intraoral scan (a device that takes many pictures to create a 3D model of your mouth) to measure these gum changes. The main goal is to see how much the gum volume changes between immediately after the crown removal and 15 minutes later. The current status of this study is unclear.

Study design
This is an observational study with a planned enrollment of 34 participants. It is not specified if it is randomized or blinded.
What's involved
You would have your temporary implant crown removed, and then your mouth would be scanned multiple times over 15 minutes. The crown would then be re-inserted.
Compensation
Not stated in the trial record.
Follow-up
You may be asked to return for one final scan if you get a new crown in the near future.

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NCT06783595

Peri-implant Mucosal Changes Over Time Following Implant Provisional Removal in the Esthetic Zone

Recruiting
Not specifiedAges 18+Observational
Loma Linda University
~34 participants
Updated 2026-02-20 on ClinicalTrials.gov
What's tested:intraoral scan

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Peri-implant mucosal volumetric change
Measured over Change between baseline and 15 minutes post initial crown removal

Conditions

Tooth Loss
Implant Site Reaction

Explore related trials

Tooth Loss

Where it's being run

1 sites across 1 states
California1

Study leadership

  • Joseph Kan, DDS, MS · PRINCIPAL_INVESTIGATOR · Loma Linda University

Who to contact

Ji Yeon Chung, DDS
[email protected]
9095584983
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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Patient must have a maxillary anterior immediate implant and provisionalization treatment completed.
The adjacent tooth next to the implant should be a natural tooth
The temporary crown must have been in place for a minimum of 4 months
The patient needs to be of general good health, with no significant medical history or social habits that might directly affect the hard and soft tissue
Patient must have generally good oral hygiene without any history of gum disease or gum recession of other teeth around the region of interest

Exclusion

Patient with an implant crown that has no teeth next to the implant crown
Patients who have an active gum disease

What this trial measures

  • Peri-implant mucosal volumetric changeChange between baseline and 15 minutes post initial crown removal

    The mucosal volumetric change will be a composite measurement of the outside and inside portion of the peri-implant gum area by a 3D analyzing software. The 3D image that has been captured from an intra-oral scan will be analyzed during the time interval mentioned in the study description. This measurement is representing the horizontal change, and will be recorded in millimeters (mm). The critical analysis will be placed as changes from 0.5mm. Any change more than 0.5mm will be considered a large amount of change.