NCT06472453

Brief Summary

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.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
24

participants targeted

Target at below P25 for not_applicable

Timeline
25mo left

Started Jan 2025

Longer than P75 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 Progress39%
Jan 2025Jun 2028

First Submitted

Initial submission to the registry

May 28, 2024

Completed
28 days until next milestone

First Posted

Study publicly available on registry

June 25, 2024

Completed
7 months until next milestone

Study Start

First participant enrolled

January 13, 2025

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2028

Last Updated

February 10, 2026

Status Verified

February 1, 2026

Enrollment Period

2.4 years

First QC Date

May 28, 2024

Last Update Submit

February 6, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

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

    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

    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]).

Secondary Outcomes (2)

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

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

  • Histomorphometric analysis of the bone harvested from the grafted site

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

Study Arms (2)

Alveolar ridge preservation with Allograft/Xenograft group

EXPERIMENTAL

The patients in both groups will go through the same treatment but with two different bone grafting materials depending on the assigned group. The patients in this group will have alveolar ridge preservation with the mixture of demineralized cortical allograft vallos®f and xenograft bone substitute called Bio-Oss®.

Device: Allograft/Xenograft

Alveolar ridge preservation with Allograft group

ACTIVE COMPARATOR

The patients in both groups will go through the same treatment but with two different bone grafting materials depending on the assigned group. The patients in this group will have alveolar ridge preservation with mineralized cortico-cancellous bone substitute called vallos®.

Device: Allograft

Interventions

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

Alveolar ridge preservation with Allograft/Xenograft group
AllograftDEVICE

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

Alveolar ridge preservation with Allograft group

Eligibility Criteria

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

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Maryland School of Dentistry

Baltimore, Maryland, 21231, United States

RECRUITING

MeSH Terms

Interventions

Transplantation, HomologousTransplantation, Heterologous

Intervention Hierarchy (Ancestors)

TransplantationSurgical Procedures, Operative

Central Study Contacts

Hanae Saito, DDS, MS, CCRC

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 28, 2024

First Posted

June 25, 2024

Study Start

January 13, 2025

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2028

Last Updated

February 10, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations