Biotivity A-C Membrane Socket Preservation Study

This randomized, controlled, parallel-arm clinical study investigates the use of Biotivity™ A/C Plus Membrane, a bioactive human amnion chorion-derived barrier membrane, in alveolar ridge preservation (ARP) of Type I or II extraction sockets. Subjects will be randomized to receive either the investigational amnion chorion membrane or a conventional collagen membrane (CopiOs Extend) over cancellous allograft (Puros®) after flapless tooth extraction in the premolar or molar region (excluding third molars).

The study will evaluate:

Primary outcome: soft tissue wound healing over 5 months using standardized wound healing indices.

Secondary outcomes: hard and soft tissue dimensional changes using CBCT and intraoral scanning, histologic evaluation of new bone formation, and implant placement feasibility.

Subjects will be followed across nine visits, including baseline (screening), ARP surgery, post-operative evaluations at multiple time points, and re-entry for implant placement at 5 months. The final implant-supported restoration will be delivered after implant integration, with continued follow-up for histologic and radiographic outcomes.

This study aims to determine whether the amnion chorion membrane provides superior soft tissue healing and volumetric bone preservation compared to conventional membranes in ARP procedures, with the goal of improving clinical outcomes in implant dentistry.

Inclusion criteria

• Provision of informed consent
• At least 18 years old
• In need of one posterior tooth (premolar or molar), excluding third molars, planned for extraction and replacement with a dental implant
• Type I or II extraction socket/ ridge identified at the time of enrolment with cone-beam CT scan
• At least one retained natural tooth adjacent to the study site

Exclusion criteria

• Insufficient interocclusal or interdental space to allow for an implant- supported prosthesis
• Previous interventions performed involving soft and/or bone grafting in the study site
• Active caries
• Uncontrolled periodontal disease present
• Evidence of active periapical, radicular, or endodontic lesions on teeth adjacent to study site
• History of recent extraction of an adjacent tooth (mesial and distal) to study site within 6 months of enrollment
• Current smoker with self-reported history of more than 10 cigarettes or equivalent per day
• Self-reported use of smokeless tobacco or e-cigarette
• Self-reported history of current alcohol or drug abuse
• Systemic or local disease or condition that would compromise bone metabolism, post-operative healing and/or osseointegration e.g. uncontrolled diabetes with self-reported most recent HbA1c > 8.0 within last six-month13,14
• Systemic corticosteroids or any other medication that would influence bone metabolism, post-operative healing, and/or osseointegration
• Pregnancy, as confirmed by a urine pregnancy test at screening.