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Bone Augmentation Techniques in the Mandible Posterior Region

NCT06661447 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 78

Last updated 2026-02-20

No results posted yet for this study

Summary

This study will compare three methods to rebuild lost bone in the back part of the lower jaw (posterior mandible) before dental implant placement. Seventy-eight adults will be randomly assigned to receive one of three "cortical shell" techniques using either the patient's own bone (autogenous) or prefabricated bone plates from animal (xenogeneic) or human donors (allogeneic). In all groups, the space inside the shell will be filled with a mixture of small bone chips and bone substitute material. The main outcome is the increase in jawbone width measured on 3D cone-beam CT scans at 6 months after surgery. Additional scans and clinical assessments up to 12 months will evaluate healing, bone stability, and postoperative recovery.

Conditions

  • Bone Substitutes
  • Alveolar Bone Grafting

Interventions

PROCEDURE

Cortical Shell Bone Grafting

Surgical reconstruction of atrophic posterior mandibular ridges using thin cortical plates fixed with titanium microscrews to form a biologic shell. The inner space is filled with a 1:1 mixture of autogenous bone chips and biomaterial. Depending on the study group, the cortical plates are autogenous (from the mandibular ramus), xenogeneic (bovine origin), or allogeneic (human donor).

Sponsors & Collaborators

  • Universidad de Especialidades Espiritu Santo

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2026-04-01
Primary Completion
2026-11-01
Completion
2027-04-01

Countries

  • Ecuador

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 NCT06661447 on ClinicalTrials.gov