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Comparison of Two Dental Implant Types and Placement Depths on Bone Around the Implant in Adults Missing Back Teeth
Sponsor: Markel Diéguez-Pereira
Summary
The goal of this clinical trial was to compare two ways of placing and restoring dental implants in adults missing one or more back teeth. The main question it aimed to answer was: does a bone-level implant placed 2 mm below the bone crest, with a final abutment that is never removed, preserve more of the bone around the implant than a tissue-level implant placed at the level of the bone crest? Each implant was randomly assigned by coin toss to one of the two treatments. Researchers measured the bone level around the implants on dental X-rays at crown placement, 6 months after loading, and at a final visit 12 to 24 months after loading. They also measured two markers of inflammation (IL-1β and MMP-8) in the fluid around the implants 6 months after loading.
Official title: Marginal Bone Remodeling and Peri-Implant Inflammatory Biomarkers Around Crestally Placed Tissue-Level and Subcrestally Placed Bone-Level Implants: A Prospective Randomized Study
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2022-05-02
Completion Date
2024-11-06
Last Updated
2026-10-21
Healthy Volunteers
No
Interventions
issue-level implant placed at crestal level (Klockner Essential Cone)
Tissue-level dental implant with a 1.5 mm machined transmucosal collar and conical connection, placed with the treated surface at the level of the bone crest after flap elevation.
Bone-level implant placed 2 mm subcrestally with one-abutment-one-time protocol (Klockner Vega)
Bone-level dental implant with an internal hexagonal connection, 10° conical interface and platform switching, placed 2 mm below the bone crest. A definitive 2 mm transepithelial abutment was connected 2 months after surgery and never removed.
Locations (1)
Clinica Dental MD
Bilbao, Bizkaia, Spain