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Crestal Bone Changes Following Equi-crestal Versus Subcrestal Implant Placement

NCT06760442 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 28

Last updated 2026-01-27

No results posted yet for this study

Summary

Statement of problem: The stability of peri-implant bone is a crucial factor for the long-term success of dental implants, where crestal bone plays a significant role in both the primary as well as the long- term implant stability. A bone loss of 1.5 mm during the first year of loading has been acceptable according to the early standards. However, more bone stability can be expected with the development in implant designs and surfaces over the past decades.

Aim of the study: the aim of this study is to radiographically assess the crestal bone changes following delayed implant placement in mandibular previously augmented posterior sites, comparing cases with equicrestal implant placement with subcrestal implant placement

Conditions

  • Implant Therapy
  • Augmentation, Alveolar Ridge

Interventions

PROCEDURE

Subcrestal implant placement

Delayed implant placement 2 mm subcrestally in missing mandibular posterior site.

PROCEDURE

Crestal implant placement

Delayed implant placement equicrestally in missing mandibular posterior site.

Sponsors & Collaborators

  • Misr International University

    lead OTHER

Principal Investigators

  • hani el nahas professor, Professor · Misr International University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-01-01
Primary Completion
2026-07-01
Completion
2026-12-01

Countries

  • Egypt

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 NCT06760442 on ClinicalTrials.gov