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Deficiency of Alveolar Ridge (Disorder)NCT04868825

Safety and Efficacy Evaluation of the Ivory Dentin Graft Device (IvoryGraft) - Long Term Follow-Up

A study testing Ivory Dentin Graft and OsteoBiol Gen-Os in people with Deficiency of Alveolar Ridge (Disorder) and Alveolar Bone Grafting, run by Ivory Graft Ltd. at 1 site in Israel.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

long-term safety and performance of Ivory Dentin Graft. Ivory Dentin Graft is at least as good as the competitor treatment group (OsteoBiol Gen-Os) for alveolar ridge preservation following tooth extraction. Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
What is being tested?
Ivory Dentin Graft and OsteoBiol Gen-Os
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
1 siteIsrael
Study dates
7 Nov 2017to 1 Apr 2025
Phase
Interventional
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 18 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male or female patient 18 up to 80 years.
  • Patient requiring at least one implant placement following mandibular pre-molar or molar tooth extraction.
  • Alveolar mandibular ridge (empty socket):
  • Height: not less than 10 mm, from the gingival margin to the mandibular nerve canal - as seen in the screening CT scan.
  • Width: not less than 5 mm, from buccal to lingual cortical plates - as seen in the screening CT scan.
  • Ability to give informed consent for the study by patient or legal guardian.
  • Willingness to undergo 7 follow up visits: 1 week, 1, 4, 6 and 10 months, 2.5 years and 5 years following dental graft implantation, as well as unscheduled sick visits.

Who cannot join

  • Pregnancy (all women of childbearing age would be questioned and told by the consenting physician regarding that criteria).
  • Known or suspected hypersensitivity to the constituents of the bone graft material (for example porcine collagen)
  • Pathologies or conditions contraindicating surgery or presenting with active acute or chronic infections excluding periapical granuloma (for example osteomyelitis, sinusitis), uncontrolled diabetes
  • Immunologic disorders or autoimmune pathologies, in particular elderly
  • Serious bone diseases of endocrine aetiology
  • Serious disturbances of bone metabolism
Show all 12Show fewer
  • Ongoing treatment with gluco- or mineralocorticoids, or with agents affecting calcium metabolism (e.g. calcitonin, bisphosphonates)
  • Irradiation therapy, chemotherapy or immunosuppressive therapy in the last 5 years
  • Malignancies
  • Severe Parafunction (bruxism and clenching)
  • Poor oral hygiene or active periodontitis
  • Heavy tobacco smoking habit (> 10 cigarettes per day)

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Assaf HaRofeh Medical Center

    Zrifin, 70300

Other trials in Israel

About this study

Official title: Safety and Efficacy Evaluation of the Ivory Dentin Graft Device - Long Term Follow-Up

long-term safety and performance of Ivory Dentin Graft. Ivory Dentin Graft is at least as good as the competitor treatment group (OsteoBiol Gen-Os) for alveolar ridge preservation following tooth extraction.

Read the detailed description

This clinical investigation is part of the post-market development process of the investigational device of Ivory Graft Ltd. in order to satisfactory validate the safety, tolerability and effectiveness of Ivory Dentin Graft as required by the sponsor's European Union (EU) notified body.

The clinical Investigation was conducted with the stated confirmation applying European regulations; International Conference of Harmonization - Good Clinical Practice (ICH-GCP) guidelines, ISO 14155:2011, and with a relevant subject population for the study objectives. Israeli Ministry of Health registration Number: 20173907.

The purpose of this investigation is to evaluate the safety, tolerability and effectiveness of Ivory Dentin Graft for long-term evaluations, compared to the active comparator, OsteoBiol-Gen-Os® graft, as a treatment for alveolar ridge preservation following tooth extraction.

Long term follow-up: from completion of visit 5 (implant placement) up to 5 years from bone grafting per subject (visits 6-9).

Study design: A prospective, randomized, semi double-blinded with blinded assessments clinical investigation, comparing between subjects grafted with Ivory Dentin Graft (Investigational group) and subjects grafted with OsteoBiol-Gen-Os® (comparator group)

Study population: A total of 41 male and female adult subjects between the ages of 18 to 80 years old requiring alveolar ridge preservation that already had mandibular premolar or molar tooth extraction were included to this ongoing study (NCT03150472; short-term follow-up of 4 months following grafting was completed on September 9, 2020). Twenty-three (23) were previously randomized and grafted with Ivory Dentin Graft (Investigational group) and 18 with the active comparator, OsteoBiol Gen-Os (Comparator group). Five (5) subjects early withdrawn the short-term study resulting in 36 subjects included for this long-term study.

Sample size Justification and Statistical Analysis Plan: The rationale for sample size calculation is based on demonstrating non-inferiority in the study primary endpoint between the investigational and the reference comparator groups. The calculations assume a difference of up to 30% (percent as in unit of measure and not of relative difference) woven bone between the treatments, which will be considered equivalent (non-inferiority) and standard deviation of 32%.

Intended Use: bone graft material for the repair or augmentation of bone defects in dental procedures.

Clinical Follow-up: subjects are medically monitored for any long-term side effects (6 and 10 months, 2.5 and 5 years following their grafting procedure) and their dental condition is also followed by dental hygienist.

Being tested
Ivory Dentin Graft, OsteoBiol Gen-Os
Keywords
Bone substitutes, Dental implants, Dentin

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ivory Dentin GraftDevice

    Ivory Dentin Graft is a bone graft material for the repair or augmentation of bone defects in dental procedures. It consists of sterile 300 - 900 μm porous particles or granules of hydroxyapatite and collagen which retain the natural form of the source porcine dentin and protein matrix. (Packed Vial: 1.00 gr; Packed Syringe: 1.0 gr)

  • OsteoBiol Gen-OsDevice

    Comparator control device A natural porcine origin cortico-cancellous heterologous bone mix consists of sterile 250 - 1000 μm porous particles of hydroxyapatite and collagen (Packed Vial: 1.0 gr)

Study groups in NCT04868825
Study groupRoleWhat they receive
Experimental (Intervention)ExperimentalNot described
Receives: Device: Ivory Dentin Graft
Active ComparatorActive comparatorNot described
Receives: Device: OsteoBiol Gen-Os

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Success of implant placement in a rigid post grafting site

    defined by dental implant survival

    Measured: 5 years after grafting

  2. Number of Participants with Treatment-Related Adverse Events

    through study completion

    Measured: 5 years after grafting

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 May 2021
  2. Study start7 Nov 2017
  3. Primary completion10 Jan 2025 (estimated)
  4. Study completion1 Apr 2025 (estimated)

Resources

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
Model description
prospective, randomized, semi double blinded with blinded assessments study comparing patients grafted with Ivory Dentin Graft (study arm) and patients grafted with OsteoBiol Gen Os (control arm) for alveolar ridge preservation following tooth extraction.
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04868825
Sponsor's protocol ID
QF-04-09-01P-
Status last verified
Apr 2021
First submitted
20 Apr 2021
Last updated
3 May 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: IPD is not intended to be shared as this will be a single site study. The study will be public at ClinicalTrial.gov

Publications

  • Hansson S, Halldin A. Alveolar ridge resorption after tooth extraction: A consequence of a fundamental principle of bone physiology. J Dent Biomech. 2012;3:1758736012456543. doi: 10.1177/1758736012456543. Epub 2012 Aug 16.

    PubMed 22924065
  • Horowitz R, Holtzclaw D, Rosen PS. A review on alveolar ridge preservation following tooth extraction. J Evid Based Dent Pract. 2012 Sep;12(3 Suppl):149-60. doi: 10.1016/S1532-3382(12)70029-5.

    PubMed 23040345
  • Avila-Ortiz G, Chambrone L, Vignoletti F. Effect of alveolar ridge preservation interventions following tooth extraction: A systematic review and meta-analysis. J Clin Periodontol. 2019 Jun;46 Suppl 21:195-223. doi: 10.1111/jcpe.13057.

    PubMed 30623987
  • Chrcanovic BR, Albrektsson T, Wennerberg A. Bone Quality and Quantity and Dental Implant Failure: A Systematic Review and Meta-analysis. Int J Prosthodont. 2017 May/June;30(3):219-237. doi: 10.11607/ijp.5142. Epub 2017 Mar 20.

    PubMed 28319206
  • Herrmann I, Lekholm U, Holm S, Kultje C. Evaluation of patient and implant characteristics as potential prognostic factors for oral implant failures. Int J Oral Maxillofac Implants. 2005 Mar-Apr;20(2):220-30.

    PubMed 15839115
  • Barone A, Todisco M, Ludovichetti M, Gualini F, Aggstaller H, Torres-Lagares D, Rohrer MD, Prasad HS, Kenealy JN. A prospective, randomized, controlled, multicenter evaluation of extraction socket preservation comparing two bovine xenografts: clinical and histologic outcomes. Int J Periodontics Restorative Dent. 2013 Nov-Dec;33(6):795-802. doi: 10.11607/prd.1690.

    PubMed 24116363
  • Mahesh L, Venkataraman N, Shukla S, Prasad H, Kotsakis GA. Alveolar ridge preservation with the socket-plug technique utilizing an alloplastic putty bone substitute or a particulate xenograft: a histological pilot study. J Oral Implantol. 2015 Apr;41(2):178-83. doi: 10.1563/AAID-JOI-D-13-00025. Epub 2013 Jun 17.

    PubMed 23772806
  • Lai VJ, Michalek JE, Liu Q, Mealey BL. Ridge preservation following tooth extraction using bovine xenograft compared with porcine xenograft: A randomized controlled clinical trial. J Periodontol. 2020 Mar;91(3):361-368. doi: 10.1002/JPER.19-0211. Epub 2019 Aug 23.

    PubMed 31380563
  • Pang C, Ding Y, Zhou H, Qin R, Hou R, Zhang G, Hu K. Alveolar ridge preservation with deproteinized bovine bone graft and collagen membrane and delayed implants. J Craniofac Surg. 2014 Sep;25(5):1698-702. doi: 10.1097/SCS.0000000000000887.

    PubMed 25148644
  • Jung RE, Sapata VM, Hammerle CHF, Wu H, Hu XL, Lin Y. Combined use of xenogeneic bone substitute material covered with a native bilayer collagen membrane for alveolar ridge preservation: A randomized controlled clinical trial. Clin Oral Implants Res. 2018 May;29(5):522-529. doi: 10.1111/clr.13149. Epub 2018 Apr 1.

    PubMed 29607553
  • Meloni SM, Tallarico M, Lolli FM, Deledda A, Pisano M, Jovanovic SA. Postextraction socket preservation using epithelial connective tissue graft vs porcine collagen matrix. 1-year results of a randomised controlled trial. Eur J Oral Implantol. 2015 Spring;8(1):39-48.

    PubMed 25738178
  • Lee JS, Cha JK, Kim CS. Alveolar ridge regeneration of damaged extraction sockets using deproteinized porcine versus bovine bone minerals: A randomized clinical trial. Clin Implant Dent Relat Res. 2018 Oct;20(5):729-737. doi: 10.1111/cid.12628. Epub 2018 Jul 27.

    PubMed 30051954

Questions about this trial

What is this clinical trial studying?

A study testing Ivory Dentin Graft and OsteoBiol Gen-Os in people with Deficiency of Alveolar Ridge (Disorder) and Alveolar Bone Grafting, run by Ivory Graft Ltd. at 1 site in Israel.

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 7 inclusion and 12 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: status not confirmed, as of the sponsor's last update on 3 May 2021. 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 Israel. 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?

Results are not available in the source record.

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?

Success of implant placement in a rigid post grafting site (time frame: 5 years after grafting). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04868825, which also lists 12 linked publications.

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 3 May 2021.

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