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

Hams Hamed Abdelrahman

Status: Completed

Conditions: Maxillary Ridge Augmentation

Treatments: Procedure: Two-stage ridge splitting with implant placement; Procedure: One stage ridge splitting with simultaneous implant placement

Study type: Interventional

Funder types: Other

Identifiers

NCT04720495

Ridge_splitting

Details and patient eligibility

About

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

Enrollment: 14 patients

Sex: All

Ages: 20 to 45 years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion criteria

• Adult patients (20-45) years of age with no sex predilection
• At least one tooth missing in the anterior maxilla
• The presence of a labial undercut >2 mm in thickness which is not able to house an implant
• The presence of adequate bone width near the alveolar bone crest
• The absence of a vertical bone defect.

Exclusion criteria

• History of any systemic disease that would contraindicate surgery example uncontrolled diabetes.
• Pregnancy or lactation.
• Long-term amino-bisphosphonate therapy.
• Smoking more than 10 cigarettes per day.
• Alcohol or drug abuse.
• Uncontrolled periodontal disease.
• Active infection.
• Inadequate inter-incisal space.
• Bruxism or clenching.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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14 participants in 2 patient groups

One stage ridge splitting

Active Comparator group

Treatment:

Procedure: One stage ridge splitting with simultaneous implant placement

Two-stage ridge splitting

Experimental group

Treatment:

Procedure: Two-stage ridge splitting with implant placement

Sponsor of this trial

Lead Sponsor

Hams Hamed Abdelrahman