NCT07792720

Brief Summary

This randomized parallel-group clinical trial aimed to evaluate the clinical efficacy of advanced platelet-rich fibrin (A-PRF) combined with hyaluronic acid (HA) in enhancing peri-implant bone formation in patients undergoing delayed dental implant placement. Participants will be allocated to either a test group, in which A-PRF combined with HA is applied at the implant site, or a control group receiving conventional implant placement without adjunctive biomaterials. Peri-implant bone changes will be assessed using cone-beam computed tomography (CBCT), including radiographic bone density and bone volume measurements. Implant stability will also be evaluated using resonance frequency analysis at the time of implant placement and during follow-up. Additional clinical outcomes include postoperative pain and implant survival. The participants will be followed up for six months after implant placement.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
9mo left

Started Jun 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress62%
Jun 2025Jun 2027

Study Start

First participant enrolled

June 5, 2025

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

August 25, 2026

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 28, 2026

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

August 28, 2026

Status Verified

August 1, 2026

Enrollment Period

2 years

First QC Date

August 25, 2026

Last Update Submit

August 25, 2026

Conditions

Keywords

Dental Implant PlacementAdvanced Platelet-Rich FibrinA-PRFHyaluronic AcidOsseointegrationImplant StabilityCone-Beam Computed TomographyPeri-Implant BoneBone Formation

Outcome Measures

Primary Outcomes (2)

  • CBCT-Derived Peri-Implant Bone Volume

    The peri-implant bone volume will be assessed using cone-beam computed tomography (CBCT) at baseline and 6 months after dental implant placement. Changes in bone volume between baseline and the 6-month follow-up will be evaluated and compared between the test and control groups.

    Baseline and 6 months after implant placement

  • CBCT-Derived Peri-Implant Radiographic Density

    Peri-implant radiographic density will be assessed using cone-beam computed tomography (CBCT) at baseline and 6 months after dental implant placement. Changes in radiographic density between baseline and the 6-month follow-up will be evaluated and compared between the test and control groups.

    Baseline and 6 months after implant placement

Secondary Outcomes (2)

  • Implant Stability Quotient (ISQ)

    At implant placement and 6 months after implant placement

  • Implant Survival

    Up to 6 months after implant placement

Study Arms (2)

Test Group

EXPERIMENTAL

Participants receive delayed dental implant placement with adjunctive application of advanced platelet-rich fibrin (A-PRF) combined with hyaluronic acid at the implant site.

Procedure: Delayed Dental Implant PlacementProcedure: Advanced Platelet-Rich Fibrin (A-PRF)Device: Hyaluronic Acid 1.5%

Control Group

ACTIVE COMPARATOR

Participants receive delayed dental implant placement without adjunctive A-PRF or hyaluronic acid.

Procedure: Delayed Dental Implant Placement

Interventions

A dental implant was surgically placed into a healed edentulous site using a standardized delayed-placement protocol. This procedure was performed in both the test and control groups.

Control GroupTest Group

Autologous advanced platelet-rich fibrin (A-PRF) was prepared from the participants' venous blood using a standardized centrifugation protocol and applied at the dental implant site. In the test group, A-PRF was used in combination with hyaluronic acid as an adjunct to delayed dental implant placement.

Test Group

In the test group, 1.5% hyaluronic acid is combined with autologous advanced platelet-rich fibrin (A-PRF) and applied locally at the dental implant site during delayed dental implant placement. The control group does not receive hyaluronic acid.

Test Group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \- Adults aged 18-65 years.
  • Patients requiring delayed dental implant placement in a posterior mandibular edentulous site
  • Sufficient residual alveolar bone height and width to permit conventional implant placement without the need for simultaneous guided bone regeneration (GBR), ridge augmentation, or other bone-grafting procedures.
  • Good general health or a medically controlled and stable systemic condition compatible with elective implant surgery and not expected to materially compromise wound or bone healing.
  • Non-smokers with no current use of tobacco products.
  • Acceptable oral hygiene and a periodontal condition compatible with implant surgery following any required professional treatment and reassessment.
  • Ability and willingness to undergo the required clinical and radiographic assessments, including CBCT examinations at baseline and at the 6-month follow-up.
  • Ability and willingness to attend the scheduled follow-up visits and comply with the study procedures.
  • Provision of written informed consent before study participation.

You may not qualify if:

  • Any uncontrolled systemic disease or medical condition that conensions for conventional implant placement without augmentation.
  • Requirement for immediate implant placement, simultaneous guided bone regeneration, ridge augmentation, or any other adjunctive bone-grafting procedure.
  • Inability or unwillingness to complete the required 6-month clinical and radiographic follow-up.traindicates elective implant surgery or may substantially impair wound or bone healing, including uncontrolled diabetes mellitus.
  • Immunocompromised status or current systemic immunosuppressive therapy.
  • Current or previous use of oral or parenteral bisphosphonates or other antiresorptive medications associated with a risk of medication-related osteonecrosis of the jaw.
  • Pregnancy at the time of screening or enrollment.
  • Unresolved active periodontal disease or active local infection involving the intended implant site, including suppuration.
  • Inadequate oral hygiene that persists after professional oral-hygiene instruction, necessary periodontal treatment, and reassessment.
  • Insufficient residual alveolar bone dim

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beauty Smile Dental Center

Sanaa, Sana'a, Yemen

RECRUITING

Study Officials

  • Samar A salamah, BDS

    Sana'a University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Samar A Salamah, BDS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The CBCT outcome assessor will be blinded to participant group allocation. CBCT images will be coded before assessment so that the assessor cannot identify whether participants belong to the test or control group.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants are randomized to either the test group, receiving A-PRF combined with hyaluronic acid during dental implant placement, or the control group, receiving conventional dental implant placement.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Master's Candidate in Oral and Maxillofacial Surgery

Study Record Dates

First Submitted

August 25, 2026

First Posted

August 28, 2026

Study Start

June 5, 2025

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

August 28, 2026

Record last verified: 2026-08

Data Sharing

IPD Sharing
Will not share

Individual participant data (IPD) will not be shared because no formal data-sharing plan was included in the approved study protocol or informed consent. Study findings will be disseminated through scientific publication and presentation in aggregate form.

Locations