Rebuilding upper jaw ridge using retromolar bone blocks with or without a collagen membrane

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional comparison enrolls patients needing maxillary ridge augmentation and compares two surgical techniques: onlay retromolar bone block with particulate bone covered by a resorbable collagen membrane versus the same onlay block without a membrane. Bone quantity after healing will be measured to see if the membrane preserves space and supports graft integration. The trial excludes patients with factors that impair healing such as heavy smoking, uncontrolled diabetes, prior head and neck radiotherapy, or active bone disease. Procedures and follow-up visits are performed at the Faculty of Dentistry, Cairo University using standard surgical and postoperative care.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Patients with maxillary residual alveolar bone height not less than 8 mm.
* Alveolar bone width from less than or equal 5 mm.
* Both genders.
* At least missing single tooth.
* Previous Failed Implants.
* Previous Failed Grafting.

Exclusion Criteria:

* • Heavy smokers more than 20 cigarettes per day.

  * Patients with alcohol abuse
  * Patients with narcotic abuse.
  * Patients with bone disease that may affect normal healing, example; hyperparathyroidism.
  * Patients had radiotherapy and chemotherapy in head and neck.
  * Patients had neoplasms in sites to be grafted.
  * Patients with Metabolic diseases uncontrolled diabetic patients, Glycated hemoglobin (Hb A1c) more than 7 mg\\dl.
  * Pregnant females.
  * Patients with Para functional habits, apprehensive and non-cooperative.
  * Bone pathology related to the site to be grafted.
  * Psychological problems, stress situation (socially or professionally), emotional instability, and unrealistic patients' expectations.
  * Intraoral soft and hard tissue pathology.
  * Systemic condition that contraindicate implant placement.
  * Under the age of 18 years.

Where it's running

• Faculty of Dentistry Cairo University
  Cairo, Egypt Recruiting

Study contacts

• Study coordinator: Mohannad A. Ismail, MSc.
• Email: mohannadahmed@hotmail.com
• Phone: 01222968444

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.