Comparing two methods for preserving jawbone after tooth extraction

Evaluation of Post Extraction Hard Tissue Alteration Following Ridge Preservation Using Partially Demineralized Dentin Block Versus Xenograft in the Esthetic Zone: A Randomized Controlled Clinical Trial

NA · Cairo University · NCT06429540

This study is testing whether using a special type of block or a different material after tooth extraction can better preserve the jawbone for patients with teeth that can't be saved.

Quick facts

PhaseNA
Study typeInterventional
Enrollment22 (estimated)
Ages18 Years to 60 Years
SexAll
SponsorCairo University (other)
Locations1 site (Cairo, Elmanil)
Trial IDNCT06429540 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the changes in hard tissue dimensions following tooth extraction when using either a Partially Demineralized Dentin Block or a Xenograft for ridge preservation in the esthetic zone. Patients with non-restorable teeth will undergo a thorough preoperative assessment, including clinical and radiographic examinations, before being randomly assigned to one of the two treatment groups. Both groups will experience atraumatic tooth extraction, and the effectiveness of each method will be assessed through clinical and radiographic evaluations at multiple time points. The study is conducted at the Faculty of Dentistry, Cairo University.

Who should consider this trial

Good fit: Ideal candidates are healthy patients with non-restorable teeth in the esthetic zone and good oral hygiene.

Not a fit: Patients with systemic conditions affecting healing, poor oral hygiene, or heavy smokers may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective method for preserving jawbone structure after tooth extraction, improving outcomes for patients requiring dental implants.

How similar studies have performed: Other studies have shown promising results with similar ridge preservation techniques, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with non-restorable teeth and Type II extraction socket in the esthetic zone
* Healthy patients with adequate oral hygiene (bleeding on probing ≤20%; Plaque index ≤20%).
* Systemically healthy.

Exclusion Criteria:

* Heavy smokers (more than 10 cigarettes per day or an electronic cigarette dose of \>6 mg/ml of nicotine).
* Patients reporting systemic conditions that may compromise healing or bone metabolism (eg: diabetes).
* Patients with poor oral hygiene (bleeding on probing \>20%; Plaque index \>20%)
* The presence of acute periapical infection.
* The presence of severe periodontal destruction.

Where this trial is running

Cairo, Elmanil

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Socket Preservation, L-PRF, Xenograft, Collagen membrane, Dentin block, Partially demineralized dentin block, Socket preservation, Liquid fibrinogen

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.