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One-stage Versus Two-stage Inverted U-shaped Ridge Splitting

NCT04720495 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 14

Last updated 2021-01-22

No results posted yet for this study

Summary

Fourteen patients having anterior maxillary undercut defect were selected to match a list of inclusion and exclusion criteria.

The participants were randomly allocated using a computer system into two groups:

Group A undergo inverted U-shaped maxillary ridge splitting using piezotomes with simultaneous implant placement in the same surgery.

Group B undergo inverted U-shaped maxillary ridge splitting as a first stage and after four weeks, ridge expansion and implant placement will be performed with only envelop flap.

Assessment included measurements of bone gain at the undercut defect and bone density labial to implants in each group from the cone-beam computed tomography

Conditions

  • Maxillary Ridge Augmentation

Interventions

PROCEDURE

One stage ridge splitting with simultaneous implant placement

A full mucoperiosteal flap was raised using the sharp periosteal elevator to expose the bone crestally and buccally. An inverted U-shaped bone cut, down to the cancellous bone, was done in the undercut area with a piezoelectric device. The horizontal bone cut was made apical to the most concave point in the undercut area with a distance of 3 mm. The two vertical bone cuts were placed at least 1 mm away from the adjacent roots and extended beyond the undercut area. The released bone end was minimally elevated using a periosteotome through a greenstick fracture. All implants were installed with the implant shoulders flush to the bone level using a low-speed drilling procedure.

PROCEDURE

Two-stage ridge splitting with implant placement

The first surgery is the same as one stage ridge splitting Four weeks later, after revascularization between the bone block and the mucoperiosteum, the second surgery will be performed. A crestal incision was done and the envelope flap slightly elevated to preserve the blood supply. The implants will be placed in the same manner as one stage ridge splitting

Sponsors & Collaborators

  • Hams Hamed Abdelrahman

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2019-10-01
Primary Completion
2020-09-30
Completion
2020-09-30

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 NCT04720495 on ClinicalTrials.gov