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Effect of the Abutment-Prosthesis Connection on Marginal Bone Loss and Gingival Sealing Around Dental Implants

NCT05883202 · Status: SUSPENDED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2026-05-12

No results posted yet for this study

Summary

In dental implant restoration, available literature demonstrates the advantage of using tall abutments, with a change of diameter with respect to the implant and a conical internal connection in the abutment-implant gap. However, for multiple restorations, the abutment-prosthesis connection has not been studied in detail. The "multi-unit" systems, both standard and brand specific, have either a flat or butt joint or an cone. In any case, both are external connection systems. Recently, an internal-type abutment-prosthesis connection system has been developed. Although it is proving its usefulness in single restorations, its use in multiple restorations compared to traditional systems has not been studied.

Therefore, taking into account all of the above, the present study has the overall objective of analyzing marginal bone loss (MBL) and adaptation of soft tissues by comparing a multiple prosthesis system of the "external, flat" type versus an external system of the "internal, conical" type.

Conditions

  • Jaw, Edentulous, Partially

Interventions

DEVICE

Connect®

Restoration of multiple implants with a Connect® abutment between the implant and the prosthesis.

DEVICE

Multi-unit

Restoration of multiple implants with a conventional multi-unit abutment between the implant and the prosthesis.

Sponsors & Collaborators

  • Universidad de Granada

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-07-10
Primary Completion
2026-05-31
Completion
2026-07-31

Countries

  • Spain

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05883202 on ClinicalTrials.gov