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Ridge Preservation Comparing a Flap Versus Flapless Technique

Alveolar Ridge Preservation Using a Flap Versus Flapless Technique Using a Demineralized Bone Matrix Allograft Plus Mineralized Particulate Allograft and a Calcium Sulfate Barrier

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04271423
Enrollment
24
Registered
2020-02-17
Start date
2006-04-30
Completion date
2007-05-31
Last updated
2023-06-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Jaw, Edentulous, Partially

Brief summary

To compare a flapless technique of alveolar ridge preservation to a flap technique to determine if preserving the periosteal blood supply would prevent loss of crestal ridge width and height.

Detailed description

Twenty-four patients will randomly be assigned to receive ridge preservation using either flapless or flap technique. Twelve test patients will receive ridge preservation using a flapless approach and twelve control patients will receive ridge preservation using a flap technique. All sockets will be grafted with demineralized bone matrix and mineralized particulate allograft and covered with calcium sulfate barrier. Re-entry surgery will be performed at 4 months when a trephine core will be taken from the grafted site immediately prior to implant placement and submitted for histologic processing.

Interventions

PROCEDURERidge Preservation

Ridge Preservation using demineralized bone matrix and mineralized particulate allograft and covered with calcium sulfate barrier.

Sponsors

University of Louisville
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

1. Have one non-molar tooth requiring extraction that will be replaced with a dental implant where at least one adjacent tooth is present 2. Study subjects at least 18 years old 3. Patients must sign an informed consent approved by the University of Louisville Human Studies Committee of Institutional Review Board.

Exclusion criteria

1. Patients with debilitating systemic disease, or a disease affects the periodontium 2. Have an allergy to any material or medication used in the study 3. Require prophylactic antibiotics 4. Previous head and neck radiation therapy 5. Chemotherapy in the previous 12 months 6. Patients taking long term Non-steroidal Anti-inflammatory Drugs or steroid therapy 7. Smoked more than one pack of cigarettes per day

Design outcomes

Primary

MeasureTime frameDescription
Crestal Horizontal Ridge Width4 months after surgeryChanges in post-extraction to 4 month change in ridge measurements at the alveolar crest and 5 mm apical to crest. Measurements taken with a caliper.

Secondary

MeasureTime frameDescription
Percent osseous tissue4 months after surgeryA trephine core will be harvested at 4 months. Following histologic processing the osseous core will be classified into percent vital bone, nonvital bone and trabecular space

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026