Vallomix Socket Preservation Study
Prospective Comparative Evaluation of Alveolar Ridge Preservation: Mixing Allograft With Xenograft VS. Allograft Alone in Atraumatic Extraction Sockets
2 other identifiers
interventional
24
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jan 2025
Longer than P75 for not_applicable
1 active site
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
First Submitted
Initial submission to the registry
May 28, 2024
CompletedFirst Posted
Study publicly available on registry
June 25, 2024
CompletedStudy Start
First participant enrolled
January 13, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 1, 2028
February 10, 2026
February 1, 2026
2.4 years
May 28, 2024
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
EXPERIMENTALThe 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®.
Alveolar ridge preservation with Allograft group
ACTIVE COMPARATORThe 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®.
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 of a single extraction socket site with vallos® (mineralized cortico-cancellous bone substitute)
Eligibility Criteria
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
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Central Study Contacts
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