Effects of Vitamin K2 on Bone Healing After Tooth Extraction

The Local Effect of Vitamin K2 on Bone Remodeling in Socket Preservation of Mandibular Single Rooted Teeth Randomized Clinical Trail

PHASE4 · Cairo University · NCT06707909

This study is testing whether using vitamin K2 during tooth extraction can help improve bone healing compared to not using it.

Quick facts

PhasePHASE4
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorCairo University (other)
Locations1 site (Cairo, Cairo Governorate)
Trial IDNCT06707909 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the impact of socket grafting with crushed vitamin K2 (menaquinone) capsules compared to no grafting on bone density and socket dimensions following tooth extraction. Patients scheduled for tooth extraction are randomly assigned to either receive the vitamin K2 graft or undergo socket healing without grafting. The study evaluates bone socket dimensions immediately after extraction and again after four months using cone beam computed tomography (CBCT) radiographs, along with core biopsies taken at the time of implant placement. The goal is to determine if vitamin K2 can enhance bone remodeling in socket preservation.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 years old requiring extraction of single-rooted mandibular teeth.

Not a fit: Patients with systemic conditions affecting bone metabolism or those with allergies to vitamin K2 will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could improve bone healing and density in patients undergoing tooth extraction, potentially leading to better outcomes for dental implants.

How similar studies have performed: While the use of vitamin K2 in bone healing is promising, this specific approach has not been extensively tested in prior studies, making it a novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:• Age \> 18 years without other age or gender restrictions.

* Patients requiring extraction of mandibular single-rooted teeth.

Exclusion Criteria:

* • Patients with systemic conditions affecting bone metabolism.

  * Allergies or sensitivities to hydroxyapatite or Vitamin K2
  * Untreated or residual periodontal disease;
  * Uncontrolled diabetes (HbA1c \> 7.5%);
  * Head and/or neck radiotherapy
  * Immunosuppressive therapy
  * Pregnant or nursing
  * Substance abuse
  * Treated or under treatment with intravenous amino-bisphosphonates
  * Patients participating in other studies, if the present protocol could not be properly followed.

Where this trial is running

Cairo, Cairo Governorate

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

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.