Alveolar Ridge TraumaPhase 4BiomaterialNCT02903667
Biomaterial to Counteract Ridge Reduction Following the Removal of Multiple Adjacent Teeth.
A Phase 4 study testing Bone grafting in people with Alveolar Ridge Trauma and Bone Resorption, run by Institute Franci at 1 site in Italy.
Trial summary
An open, prospective, randomized, multicenter study focused on the ridge diminution in case of grafting of fresh extraction sockets with Bio-Oss Collagen, Bio-Gide (Geistlich Pharma, Wolhusen, Switzerland), placing Dentsply implants (Astra Tech System). Read more about this study
- Who is it for?
- Ages 25 years and older
- Conditions the study is for
- Alveolar Ridge Trauma, Bone Resorption
- What is being tested?
- Bone grafting
- Type of treatment
- Medical device
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 40 participants
- Where
- 1 siteItaly
- Study dates
- Mar 2015to Sep 2023
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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 25 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
None listed.
Who cannot join
- untreated rampant caries and uncontrolled periodontal disease
- uncontrolled diabetes or any other systemic or local disease or condition that would compromise post-operative healing
- unable or unwilling to return for follow-up or unlikely to be able to comply with study procedures according to investigators judgement.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Biomaterial to Counteract Ridge Reduction Following the Removal of Multiple Adjacent Teeth. A Prospective Randomized Controlled Study.
An open, prospective, randomized, multicenter study focused on the ridge diminution in case of grafting of fresh extraction sockets with Bio-Oss Collagen, Bio-Gide (Geistlich Pharma, Wolhusen, Switzerland), placing Dentsply implants (Astra Tech System).
Read the detailed description
The removal of at least 2 adjacent teeth would cause more advanced hard tissue loss during healing than that occurring after removal of a single tooth with adjacent teeth present. In order to maintain the dimension of the ridge following tooth removal, bone grafts and bone substitutes have also been placed in the extraction socket. So far no data have been reported on the effect of removal of multiple adjacent teeth on bone loss at various aspects of the edentulous sites. Furthermore, the potential effect on ridge contraction of implant placement in multiple fresh extraction sites is not documented. Therefore, the objective of the study is to evaluate the possibility of counteracting un favourable ridge modeling after multiple tooth extractions by placing mineral bovine bone in the extraction sockets and covering the wound with a native collagen membrane. In addition, the possibility of placing implants in the grafted sites is evaluated after six month of healing. For these purpose 40 subjects with 2 or more fresh adjacent extraction sites in need of two or more implants replacing teeth will be enrolled. Ridge dimensional changes will be measured after 6 months of healing; marginal bone loss will be measured after 3-years follow-up from the baseline (prosthetic delivery).
- Conditions
- Alveolar Ridge Trauma, Bone Resorption
- Being tested
- Bone grafting
- Keywords
- bone grafting, implantology, oral surgery
- Medical subject headings
- Bone Resorption
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Bone graftingDevice
| Study group | Role | What they receive |
|---|---|---|
| bone grafting | Experimental | The possibility of counteracting unfavourable ridge modelling after multiple tooth extractions by placing bone grafting material in the fresh extraction sites. Receives: Device: Bone grafting |
| natural healing | Sham comparator | ridge modelling after multiple tooth extractions. Receives: Device: Bone grafting |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cone Beam Computerized Tomographic (CBCT) examination at the center of each extraction socket, between the sockets, at the septum next to adjacent teeth.
Measurements of alveolar ridge dimensional changes in the first 6 months of healing
Measured: Up to 24 weeks
Secondary outcomes (1)
Standard intraoral radiograph of each experimental socket and inter-dental bone
Changes in crestal bone level between baseline (prosthetic restoration) and follow-up (3 years later)
Measured: 3 years follow up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Sep 2016 (estimated)
- Study startMar 2015
- Primary completionSep 2023
- Study completionSep 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Alveolar Ridge TraumaStudies of the same condition, open and under way.
- 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 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Institute Franci
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02903667
- Sponsor's protocol ID
- G-2013-018
- Acronym
- Biomaterial
- Status last verified
- Nov 2025
- First submitted
- 1 Sep 2016
- Last updated
- 19 Nov 2025
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 19 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Biomaterial to Counteract Ridge Reduction Following the Removal of Multiple Adjacent Teeth. A Prospective Randomized Controlled Study.
- ClinicalTrials.gov ID
- NCT02903667
- Acronym / sponsor ID
- Biomaterial / G-2013-018
- Conditions
- Alveolar Ridge Trauma, Bone Resorption
- Keywords
- bone grafting, implantology, oral surgery
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Institute FranciUniversity, hospital or other
- Study start
- Mar 2015 (actual)
- Primary completion
- Sep 2023 (actual)
- Study completion
- Sep 2023 (actual)
- First posted
- 16 Sep 2016 (estimated)
- 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.
An open, prospective, randomized, multicenter study focused on the ridge diminution in case of grafting of fresh extraction sockets with Bio-Oss Collagen, Bio-Gide (Geistlich Pharma, Wolhusen, Switzerland), placing Dentsply implants (Astra Tech System).
Detailed description
The removal of at least 2 adjacent teeth would cause more advanced hard tissue loss during healing than that occurring after removal of a single tooth with adjacent teeth present. In order to maintain the dimension of the ridge following tooth removal, bone grafts and bone substitutes have also been placed in the extraction socket. So far no data have been reported on the effect of removal of multiple adjacent teeth on bone loss at various aspects of the edentulous sites. Furthermore, the potential effect on ridge contraction of implant placement in multiple fresh extraction sites is not documented. Therefore, the objective of the study is to evaluate the possibility of counteracting un favourable ridge modeling after multiple tooth extractions by placing mineral bovine bone in the extraction sockets and covering the wound with a native collagen membrane. In addition, the possibility of placing implants in the grafted sites is evaluated after six month of healing. For these purpose 40 subjects with 2 or more fresh adjacent extraction sites in need of two or more implants replacing teeth will be enrolled. Ridge dimensional changes will be measured after 6 months of healing; marginal bone loss will be measured after 3-years follow-up from the baseline (prosthetic delivery).
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| bone grafting | Experimental | Device: Bone graftingThe possibility of counteracting unfavourable ridge modelling after multiple tooth extractions by placing bone grafting material in the fresh extraction sites. |
| natural healing | Sham comparator | Device: Bone graftingridge modelling after multiple tooth extractions. |
Who may qualify
- Ages
- 25 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (0 listed)
Key exclusion criteria (3 listed)
- untreated rampant caries and uncontrolled periodontal disease
- uncontrolled diabetes or any other systemic or local disease or condition that would compromise post-operative healing
- unable or unwilling to return for follow-up or unlikely to be able to comply with study procedures according to investigators judgement.
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 |
|---|---|---|
| Bone grafting | Device | bone grafting, natural healing |
Primary outcome
Cone Beam Computerized Tomographic (CBCT) examination at the center of each extraction socket, between the sockets, at the septum next to adjacent teeth.
Time frame: Up to 24 weeks
Measurements of alveolar ridge dimensional changes in the first 6 months of healing
1 secondary outcome
Standard intraoral radiograph of each experimental socket and inter-dental bone
Time frame: 3 years follow up
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Nov 2025.
- Individual participant dataSharing planned: Undecided
Related trials for Alveolar Ridge Trauma
Not yet recruitingPhase 3
Vertical Ridge Augmentation Strategies
Alveolar Bone Resorption, Alveolar Ridge Trauma
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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Bone grafting in people with Alveolar Ridge Trauma and Bone Resorption, run by Institute Franci at 1 site in Italy.
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 0 inclusion and 3 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: finished, as of the sponsor's last update on 19 Nov 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 Italy. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cone Beam Computerized Tomographic (CBCT) examination at the center of each extraction socket, between the sockets, at the septum next to adjacent teeth. (time frame: Up to 24 weeks). 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 19 Nov 2025; AzTrials last refreshed its copy on 8 Nov 2026.