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Radiographic and Histological Assessment of Autogenous Onlay Block Versus Cortical Shell on Anterior Maxilla

NCT06450535 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2024-06-10

No results posted yet for this study

Summary

Two groups of patient with horizontally deficient anterior maxilla indicated for bone augmentation ,one will be subjected to autogenous onlay bone block from retromolar bone and the other to cortical shell from retromolar bone also.

Conditions

  • Alveolar Bone Loss

Interventions

PROCEDURE

Autogenous onlay bone block harvesting from retromolar bone in anterior maxilla

Surgical protocol ( retromolar bone harvesting) After injecting local anesthesia a crestal incision is done, from a point on the occlusal surface along the external oblique ridge and extending anteriorly and inferiorly through the buccal mucosa, parallel to the gingival margin of the mandibular molars. The subperiosteal dissection extend to expose the ascending ramus and the retromolar region With the aid of surgical carbide burs, two proximal vertical cuts penetrating the cortex of the external oblique ridge. The depth of penetration of the posterior cut did not exceed 2.5 mm to avoid injury to the inferior alveolar nerve. By using microsaw , an inferior cut of 3.2 mm in depth joining the anterior and posterior vertical cuts was done. Small perforations of 3-4 mm in depth were performed on the superior aspect of the external oblique ridge using 1 mm drill bur. Finally, the block was sheared off using a chisel.

PROCEDURE

Autogenous cortical shell technique from retromolar bone in anterior maxilla

The harvested cortical plate was then split longitudinally in two parts using a microsaw, and thinned with the bone scraper to achieve a plate of 1 mm thickness. The plate was fixed at a distance from the residual ridge with 2 screws. Autogenous bone particles, collected with the bone scraper, were tightly packed into the gap between the plate and the recipient site.

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • mohamed atef, PhD · faculty of oral and dental medicine,cairo university

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-07-01
Primary Completion
2025-12-01
Completion
2025-12-01

Countries

  • Egypt

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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 NCT06450535 on ClinicalTrials.gov