NCT07387913

Evaluation of the Effect of Leucocyte Platelet-Rich Fibrin (L-PRF) Technique Applied in Post-extraction Sockets Before Placement of Dental Implants

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: National and Kapodistrian University of Athens · Academic / Other
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: Accepted

Summary

Aim of study: The application of L-PRF membrane in post-extraction sockets outmatches the use of a) allograft covered with a collagen fleece b) allograft combined with L-PRF membrane c) natural healing, with reference to bone remodeling and regeneration of post-extraction sockets. Moreover, it will be examined whether the application of L-PRF membrane leads to faster bone maturation and creation of a favorable biological environment for earlier implant placement. Materials and methods: This study is taking place in Athens University Dental School, in Oral and Maxillofacial Surgery Clinic. All patients participating in the present study received thorough informed consent. All forty patients participating in this study, were subjected in at least one atraumatic and flapless extraction of a single rooted tooth in the maxilla or mandible. Then, the patients were randomly divided in four categories with regards to management of the socket: a) no intervention i.e. Natural healing b) application of L-PRF membrane in the socket c) application of allograft (Phoenix) covered with a collagen fleece d) application of allograft (Phoenix) covered with a L-PRF membrane. Interrupted sutures will be performed for the four extraction socket groups. Radiographic examination (localized CBCT) was obtained immediately before the extraction, as well as three months post-operatively (localized CBCT) in order to assess the changes in the alveolar ridge dimensions. The next stage of the study refers to the rehabilitation of the edentulous region. Before each patient was subjected to dental implant placement, a bone biopsy was obtained. Therefore, all the biopsy specimens obtained went through histological evaluation in order to assess qualitative and quantitative features.

Conditions

• L-PRF
• Dental Implants
• Osseointegration
• Alveolar Bone Grafting

Interventions

Type	Name	Description
PROCEDURE	Allograft and collagen membrane	The post-extraction sockets will be filled with allograft particles and collagen membrane.
PROCEDURE	Allograft and L-PRF membrane	The post-extraction sockets will be filled with allograft particles and L-PRF membrane.
PROCEDURE	L-PRF	The post-extraction sockets will be filled with L-PRF membrane.

Timeline

• Start date: 2022-09-05
• Primary completion: 2026-05-20
• Completion: 2026-09-15
• First posted: 2026-02-04
• Last updated: 2026-02-04

Locations

1 site across 1 country: Greece