- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03956251
Ridge Preservation With Putty Allografts
Ridge Preservation Comparing the Clinical and Histologic Healing of Two Different Putty Allografts
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Thirty patients will be treated using the principles of guided bone regeneration utilizing a full thickness flap for ridge preservation. Fifteen test patients will receive an intrasocket demineralized and mineralized combination putty allograft (MinerOss Putty, BioHorizons) covered with a regenerative tissue matrix membrane (AlloDerm GBR, BioHorizons). The positive control group of fifteen patients will receive an intrasocket demineralized putty allograft (Puros, Zimmer) covered with a regenerative tissue matrix membrane (AlloDerm GBR, BioHorizons). Approximately, four months post-surgery, a trephine core will be taken from the grafted site immediately prior to implant placement and submitted for histologic processing.
Prior to surgery, each patient will receive a diagnostic work-up including standardized radiographs (periapicals), study casts, clinical photographs, and a clinical examination to record attachment level, probing depth, recession, and mobility of teeth adjacent to the extracted sites. Customized acrylic occlusal stents will be fabricated on the study casts to serve as fixed reference guides for the measurements. Detailed oral hygiene instructions will be provided.
For histology, trephine core specimens will be evaluated to determine percent vital bone, non-vital bone, and trabecular space. Step serial sections will be taken from each longitudinally sectioned core. The sections will be stained with hematoxylin and eosin. Ten slides per patients will be prepared with at least 4 sections per slide. For each patient, 6 of 10 slides will be assessed. The mean percentage of vital and nonvital bone, and trabecular space will be determined for each patient.
Soft tissue thickness will be measured prior to the procedure. The surgical procedure will consist of a full-thickness papilla preservation flaps performed on the buccal and palatal/lingual to expose the alveolar ridge and the tooth to be extracted. Following the extraction, vertical measurements will be taken with the acrylic occlusal stent in place, and horizontal measurements with a specially designed digital caliper. Both groups will receive an intrasocket graft covered by a regenerative tissue matrix membrane. The control group will receive a demineralized putty allograft. The test group will receive a combination mineralized and demineralized putty allograft. The surgical procedures will be documented with clinical photographs of teeth and/or intraoral structures.
Post surgical management includes all patients will be seen every 2 weeks until 8 weeks post-surgery. Patients will then be seen monthly until month 4 for the final examination and trephine core collection for histological analysis and implant placement. Patients will take doxycycline 100 mg qd for two weeks, Hydrocodone/Acetaminophen 5/325mg q4-6h as needed for pain, and naproxen 375mg q12h for one week for inflammation reduction. Postoperative visits will consist of supragingival plaque removal, and oral hygiene reinforcement Any patient who develops any significant post-operative complications or adverse reaction to the materials used or shows attachment loss greater or equal to 2 mm on teeth adjacent to the experimental site will be exited from the study and will receive appropriate treatment.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Kentucky
-
Louisville, Kentucky, United States, 40202
- Graduate Periodontics, UofL School of Dentistry
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Have one non-molar tooth requiring extraction that will be replaced by a dental implant. The site must be bordered by at least one tooth.
- Healthy male or female who is at least 18 years old.
- Patients must sign an informed consent approved by the University of Louisville Human Studies Committee.
Exclusion Criteria:
- Patients with debilitating systemic diseases, or diseases that have a clinically significant effect on the periodontium.
- Presence or history of osteonecrosis of jaws.
- Patients who are currently taking IV bisphosphonates or who had IV treatment with bisphosphonates irrespective of duration.
- Patients who have been treated with oral bisphosphonates for more than three years.
- Patients with an allergy to any material or medication used in the study.
- Patients who need prophylactic antibiotics
- Previous head and neck radiation therapy.
- Chemotherapy in the previous 12 months.
- Patients on long term NSAID or steroid therapy.
- Pregnant or lactating patients.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Combined Mineralized/Demineralized Putty Allograft
Ridge preservation with a Mineralized/Demineralized Putty allograft
|
At time of extraction, 15 test patients will receive ridge preservation using Combined Mineralized/Demineralized Putty Allograft
|
Active Comparator: Demineralized Putty Allograft
Ridge preservation with Demineralized Putty allograft
|
At time of extraction, 15 control patients will receive ridge preservation using Demineralized Putty Allograft
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in horizontal width from post-extraction site to 4-month.
Time Frame: 0 and 16 weeks
|
Horizontal post-extraction ridge measurements at the mid-defect alveolar crest and 5 mm apical taken with a caliper.
|
0 and 16 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in post extraction ridge height.
Time Frame: 0 and 16 weeks
|
Vertical post-extraction ridge measurements from a stent.
|
0 and 16 weeks
|
Change in facial soft tissue thickness and final occlusal soft tissue thickness.
Time Frame: 0 and 16 weeks
|
Soft tissue thickness measurements at the crest, 5mm apical, and mid-occlusal post treatment only taken with a #40 endodontic reamer.
|
0 and 16 weeks
|
Histologic composition. (Histologic percent vital bone, nonvital bone and trabecular space.
Time Frame: 16 weeks
|
Obtain via trephine core
|
16 weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Henry Greenwell, DMD MSc, University of Louisville
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 19.0516
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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