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Dental Implant Crown Design Study

This study is looking at how the shape of a dental implant crown (the white tooth part above the gum) under your gums affects the gum tissue around your dental implants. You would receive an implant crown designed with either a straight or concave shape under the gums. Researchers will measure changes in bone loss around the implant, gum thickness, and gum height to see which design works best. To join, you need to be between 20 and 80 years old, already be part of the HUM00208140 main study, and have a dental implant that's ready for a crown. The study aims to enroll 30 participants, but its current status is unclear.

Study design
This is an interventional study where participants are randomly assigned to receive one of two dental implant crown designs. It plans to enroll 30 participants.
What's involved
You would receive a dental implant crown and be followed up for one year after the crown is delivered.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for 12 months after crown delivery.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06185075

Influence of Implant Crown Transmucosal Contour Design on Soft and Hard Tissue Clinical Outcomes

Enrolling by Invitation
NAAges 20–80InterventionalTreatment
University of Michigan
~30 participants
Updated 2026-02-12 on ClinicalTrials.gov
What's tested:Implant crown delivery

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Marginal bone loss around dental implant
Measured over 6 months and 12 months after crown delivery
+3 more outcomes measured

Conditions

Gum Disease

Explore related trials

Gingival Disorder

Where it's being run

1 sites across 1 states
Michigan1

Study leadership

  • Muhammad Saleh, BDS, MSD · PRINCIPAL_INVESTIGATOR · University of Michigan

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Be a current participant of HUM00208140 main study
Have a dental implant that is ready to be restored (placed at least 3 months ago and healing is adequate)

What this trial measures

  • Marginal bone loss around dental implant6 months and 12 months after crown delivery

    Measured from radiographs in mm

  • Gum tissue thickness6 months and 12 months after crown delivery

    Measured from intraoral scan in mm

  • Gingival margin height6 months and 12 months after crown delivery

    Measured from intraoral scan in mm

  • Amount of keratinized gingiva6 months and 12 months after crown delivery

    Measured clinically in mm