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NCT Number: NCT06472453

Vallomix Socket Preservation Study

This research aims to compare the effectiveness of two bone grafting materials on preserving jawbone integrity after tooth extraction. Following extraction, the jawbone surrounding the removed tooth can shrink, affecting future implant placement. By placing a bone graft material in the extraction socket, we aim to maintain adequate jawbone space for future implants. This study compares how well the mixture of vallos®f (human source bone) and Bio-Oss (animal source bone) [test], and vallos® only [control] grafting materials work.

Participants with at least one tooth planned for extraction and subsequent implant placement are sought for this study. Participants will be randomly assigned to either the mixture of vallos®f and Bio-Oss (test) group or the vallos® only (control) group.

Throughout the approximately 2-year study duration, participants will undergo oral exams, x-rays, surgical procedures, and follow-up visits. All participants will undergo routine tooth extraction, bone graft material placement, and dental implant placement. After the crown is placed on the implant, participants will attend follow-up visits.

Participation in the study is voluntary, and the alternative is to continue routine dental care. Risks include minor discomfort from procedures such as tooth extraction and implant placement. The major benefit of participation in the study is the preservation of jaw dimensions following extraction, which will simplify the placement of a dental implant.

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Key information

Conditions

Alveolar Ridge Augmentation

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Maryland School of Dentistry

Baltimore, Maryland, 21231, United States

Location status: Recruiting

Location contact

Hanae Saito, DDS MS CCRC

CONTACT

[email protected]

410-706-3646

Hanae Saito, DDS MS CCRC

PRINCIPAL_INVESTIGATOR

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Provision of informed consent
  • At least 18 years old
  • In need of one posterior tooth (premolar or molar), excluding third molar 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 treated 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-month
  • Systemic corticosteroids or any other medication that would influence bone metabolism, post-operative healing, and/or osseointegration

Treatment and study plan

Allograft/Xenograft

Device

Alveolar ridge preservation of a single extraction socket site with a mixture of demineralized cortical bone substitute vallos®" and xenograft Bio-Oss®.

Allograft

Device

Alveolar ridge preservation of a single extraction socket site with vallos® (mineralized cortico-cancellous bone substitute)

Primary outcomes

  1. Three-dimensional hard and soft tissue change using CBCT/ intraoral scan

    Time frame: Over the course of the study (From the time of study enrollment Alveolar Ridge Preservation [Visit 2] to 1-year post implant-supported crown delivery [Visit 11]).

    Evaluate the efficacies of Alveolar Ridge Preservation in three-dimensional ridge hard and soft tissue change in volumetric and linear measurement using CBCT and intraoral scan over time

Secondary outcomes

  1. Comparison of implant positions of digital planning based on the CBCT scan before and after Alveolar Ridge Preservation will be compared.

    Time frame: 4-5 months (Before Alveolar Ridge Preservation/ Enrollment [Visit 2] to 4-month follow-up [Visit 7])

    Evaluate the efficacies of Alveolar Ridge Preservation in achieving intended implant placement. The digital planning on the CBCT before and after the e-extraction digital planning

  2. Histomorphometric analysis of the bone harvested from the grafted site

    Time frame: 5 months (At the time of implant placement [Visit 8])

    Evaluate the bone harvested from the re-grafted site for new bone formation/remaining graft residuals at the time of implant placement (Visit 8) by histomorphometric analysis

Study contacts

Contact information is provided by the study sponsor or research team.

Hanae Saito, DDS, MS, CCRC

CONTACT

[email protected]

410-706-3646

Sponsors and collaborators

Lead sponsor

University of Maryland, Baltimore

Other

Registry information

Official study title

Prospective Comparative Evaluation of Alveolar Ridge Preservation: Mixing Allograft With Xenograft VS. Allograft Alone in Atraumatic Extraction Sockets

Important dates

Study start
2025
Primary completion
2027
Study completion
2028
First posted
Jun 25, 2024
Registry last updated
Feb 10, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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