Dental ImplantNCT04954664
Ridge Augmentation Using Allograft Particles Hydrated With or Without Recombinant Human Platelet-Derived Growth Factor
A study testing Allograft particles hydrated with rhPDGF and Allograft particles hydrated in a conventional way with saline. in people with Dental Implant and Bone Loss, run by University of Alabama at Birmingham at 1 site in United States.
Trial summary
This study will compare two techniques to achieve increase in ridge dimensions as a preparation for dental implants using a resorbable barrier membrane and bone particulate allogenic graft hydrated with saline or a growth factor called Recombinant Human Platelet-Derived Growth Factor (rhPDGF). Read more about this study
- Who is it for?
- Ages 18 to 99 yearsHealthy volunteers can take part
- Conditions the study is for
- Dental Implant, Bone Loss
- What is being tested?
- Allograft particles hydrated with rhPDGF and Allograft particles hydrated in a conventional way with saline.
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 44 participants
- Where
- 1 siteUnited States
- Study dates
- 11 Aug 2021to Dec 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 99 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- English speaking
- At least 18 years old
- Must be a patient of the UAB Dental School
- Able to read and understand informed consent document
- Need for implants to replace missing tooth or teeth in at least one quadrant of the mouth.
- Insufficient alveolar ridge width for endosseous implant placement defined as 5mm or less as determined by bone sounding and cone beam computed tomography (CBCT) scan.
Who cannot join
- Non-English speaking
- Less than 18 years old
- Smokers/tobacco users (>10 cigarettes/day)
- Patients with systemic pathologies or conditions contraindicating oral surgical procedures or adversely affecting wound healing
- Patient is a poor compliance risk (i.e., poor oral hygiene, history of alcohol or drug abuse)
- Vertical loss of bone at edentulous ridge.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Unversity of Alabama at Birmingham, School of Dentistry
Birmingham, Alabama, 35294-0007
Hussein Basma, DDS, MS, 205-975-2888, basma86@uab.edu
Sarah Startley, DMD, 205-975-8711, ss1971@uab.edu
About this study
Official title: Lateral Ridge Augmentation Using Allograft Bone Particles Hydrated With or Without Recombinant Human Platelet-Derived Growth Factor: A Clinical and Histological Randomized Controlled Trial
This study will compare two techniques to achieve increase in ridge dimensions as a preparation for dental implants using a resorbable barrier membrane and bone particulate allogenic graft hydrated with saline or a growth factor called Recombinant Human Platelet-Derived Growth Factor (rhPDGF).
Read the detailed description
This is a prospective, randomized, and examiner-only-masked study. It is designed to clinically compare the use of bone particulate allograft hydrated with rhPDGF vs bone particulate allograft hydrated with saline, for patients who were planned to receive dental implants but presented with deficient bone ridges. This investigation of two techniques to achieve increase in ridge dimensions as a preparation for dental implants using a resorbable barrier membrane and bone particulate allogenic graft hydrated with saline or a growth factor called Recombinant Human Platelet-Derived Growth Factor (rhPDGF).
In two arms, bone core biopsies will be harvested at time of implant placement 4 months following ridge augmentation grafting. These 2x8mm bone cores will then undergo histological and histomorphometrical analyses to determine qualitative and quantitative healing differences between in both study arms.
Clinical measurements are gathered at 2 time points (grating and implant placement) at all defects and will be compared for differences.
Cone beam computed tomography (CBCT) initial scans are conducted immediately following prior to ridge augmentation and second scans obtained prior to implant placement both arms. These types of Cone Beam CT scans as well as conventional dental x-rays are valuable treatment planning tools that are commonly used in modern-day implant dentistry. The scans and the x-ray images are also used to monitor the health of tissues surrounding implants and to make sure that the implant remains securely implanted into the jawbone over time.
- Conditions
- Dental Implant, Bone Loss
- Being tested
- Allograft particles hydrated with rhPDGF, Allograft particles hydrated in a conventional way with saline.
- Keywords
- New bone, Dental implants
- Medical subject headings
- Bone Diseases, Metabolic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Allograft particles hydrated with rhPDGFBiological
Allograft particles should be hydrated with GEM21S for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane.
Allograft particles hydrated in a conventional way with saline.Biological
Allograft particles should be hydrated with saline for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane
| Study group | Role | What they receive |
|---|---|---|
| Allograft particles hydrated with rhPDGF | Experimental | Allograft particles should be hydrated with GEM21S for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane. Receives: Biological: Allograft particles hydrated with rhPDGF |
| Allograft particles hydrated in a conventional way with saline. | Active comparator | Allograft particles should be hydrated with saline for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane. Receives: Biological: Allograft particles hydrated in a conventional way with saline. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Quantitative histomorphometric evaluation of new bone formation 4 months after GBR
To quantify the distribution of the different tissues (new bone, soft tissue, residual graft and artifact) after 4 months of healing. Hence, the primary outcome will be the new bone formation, defined as the percentage of new bone area in the histomorphometric sections.
Measured: From baseline to 4 months
Secondary outcomes (1)
Quantitative two- and three-dimensional radiographic comparison of dimensional changes 4 months using cone beam computed tomography (CBCT) and a virtual implant planning software, coDiagnostiX™
quantification of bone width gain after ridge augmentation. both clinically using a caliper to measure the ridge width before and after ridge augmentation and also radiographically using a software that superimpose before and after CBCT to calculate the difference which basically leads to amount of bone gain.
Measured: From baseline to 4 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jul 2021
- Study start11 Aug 2021
- Primary completionDec 2026 (estimated)
- Study completionDec 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dental ImplantStudies of the same condition, open and under way.
- More trials run by University of Alabama at BirminghamThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 44 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Alabama at Birmingham
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hussein Basma, University of Alabama at Birmingham
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04954664
- Sponsor's protocol ID
- IRB-300007719
- Other IDs
- UAB Periodontology
- Status last verified
- Dec 2025
- First submitted
- 29 Jun 2021
- Last updated
- 29 Dec 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 Dec 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Lateral Ridge Augmentation Using Allograft Bone Particles Hydrated With or Without Recombinant Human Platelet-Derived Growth Factor: A Clinical and Histological Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT04954664
- Acronym / sponsor ID
- IRB-300007719
- Conditions
- Dental Implant, Bone Loss
- Keywords
- New bone, Dental implants
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 44 participants (estimated)
- Lead sponsor
- University of Alabama at BirminghamUniversity, hospital or other
- Study start
- 11 Aug 2021 (actual)
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2027 (estimated)
- First posted
- 8 Jul 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will compare two techniques to achieve increase in ridge dimensions as a preparation for dental implants using a resorbable barrier membrane and bone particulate allogenic graft hydrated with saline or a growth factor called Recombinant Human Platelet-Derived Growth Factor (rhPDGF).
Detailed description
This is a prospective, randomized, and examiner-only-masked study. It is designed to clinically compare the use of bone particulate allograft hydrated with rhPDGF vs bone particulate allograft hydrated with saline, for patients who were planned to receive dental implants but presented with deficient bone ridges. This investigation of two techniques to achieve increase in ridge dimensions as a preparation for dental implants using a resorbable barrier membrane and bone particulate allogenic graft hydrated with saline or a growth factor called Recombinant Human Platelet-Derived Growth Factor (rhPDGF).
In two arms, bone core biopsies will be harvested at time of implant placement 4 months following ridge augmentation grafting. These 2x8mm bone cores will then undergo histological and histomorphometrical analyses to determine qualitative and quantitative healing differences between in both study arms.
Clinical measurements are gathered at 2 time points (grating and implant placement) at all defects and will be compared for differences.
Cone beam computed tomography (CBCT) initial scans are conducted immediately following prior to ridge augmentation and second scans obtained prior to implant placement both arms. These types of Cone Beam CT scans as well as conventional dental x-rays are valuable treatment planning tools that are commonly used in modern-day implant dentistry. The scans and the x-ray images are also used to monitor the health of tissues surrounding implants and to make sure that the implant remains securely implanted into the jawbone over time.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Allograft particles hydrated with rhPDGF | Experimental | Biological: Allograft particles hydrated with rhPDGFAllograft particles should be hydrated with GEM21S for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane. |
| Allograft particles hydrated in a conventional way with saline. | Active comparator | Biological: Allograft particles hydrated in a conventional way with saline.Allograft particles should be hydrated with saline for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane. |
Who may qualify
- Ages
- 18 to 99 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- English speaking
- At least 18 years old
- Must be a patient of the UAB Dental School
- Able to read and understand informed consent document
- Need for implants to replace missing tooth or teeth in at least one quadrant of the mouth.
Key exclusion criteria (6 listed)
- Non-English speaking
- Less than 18 years old
- Smokers/tobacco users (>10 cigarettes/day)
- Patients with systemic pathologies or conditions contraindicating oral surgical procedures or adversely affecting wound healing
- Patient is a poor compliance risk (i.e., poor oral hygiene, history of alcohol or drug abuse)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Allograft particles hydrated with rhPDGFAllograft particles should be hydrated with GEM21S for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane. | Biological | Allograft particles hydrated with rhPDGF |
| Allograft particles hydrated in a conventional way with saline.Allograft particles should be hydrated with saline for 20 minutes prior to grafting. The graft sites will be covered with a resorbable barrier membrane | Biological | Allograft particles hydrated in a conventional way with saline. |
Primary outcome
Quantitative histomorphometric evaluation of new bone formation 4 months after GBR
Time frame: From baseline to 4 months
To quantify the distribution of the different tissues (new bone, soft tissue, residual graft and artifact) after 4 months of healing. Hence, the primary outcome will be the new bone formation, defined as the percentage of new bone area in the histomorphometric sections.
1 secondary outcome
Quantitative two- and three-dimensional radiographic comparison of dimensional changes 4 months using cone beam computed tomography (CBCT) and a virtual implant planning software, coDiagnostiX™
Time frame: From baseline to 4 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Dec 2025.
- Individual participant dataSharing planned: No
Related trials for Dental Implant
Recruiting
Home-Use Dual-Light Antibacterial Photodynamic Therapy for Peri-Implant Mucositis in Full-Arch Implant Prostheses
Peri Implant Mucositis, Dental Implant Rehabilitation
Recruiting
Evaluation of Different Grafting Technique of Thin Gingival Phenotype With Delayed Dental Implants
Implant Dentistry, Connective Tissue Graft
Recruiting
The Application of a Biphasic Calcium Sulfate Graft Material in Sinus Floor Elevation
Alveolar Bone Loss, Edentulism Nos
Not yet recruitingPhase 1/2
Effect of Povidone Iodine on the Dental Implant Internal Surface Microbiome
Dental Implant
Enrolling by invitation
Investigation of the Effect of Horizontal Platelet Rich Fibrin Placed in Tooth Extraction Sockets on Bone Formation
Tooth Loss, Dental Implant Failed
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Allograft particles hydrated with rhPDGF and Allograft particles hydrated in a conventional way with saline. in people with Dental Implant and Bone Loss, run by University of Alabama at Birmingham at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 29 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Hussein Basma, DDS, MS (205-934-2888, basma86@uab.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Quantitative histomorphometric evaluation of new bone formation 4 months after GBR (time frame: From baseline to 4 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Dec 2025.