Jaw, Edentulous, PartiallyNCT00711113
Study on OsseoSpeed™ Implants Replacing 2-5 Teeth in the Posterior Upper Jaw, Restored With Provisional Teeth Attached 6-7 Weeks Later
A study testing OsseoSpeed™ in people with Jaw, Edentulous, Partially, run by Dentsply Sirona Implants and Consumables at 3 sites in 2 countries.
Trial summary
The purpose of the study is to evaluate Astra Tech Dental Implant System, Fixture Osseospeed™, in patients with tooth loss in the posterior maxilla in an early loading protocol. Primary objectives are implant stability, marginal bone adaptation and survival rate. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Jaw, Edentulous, Partially
- What is being tested?
- OsseoSpeed™
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 47 participants
- Where
- 3 sitesin 2 countries
- Study dates
- Dec 2003to Sep 2011
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Provision of written informed consent
- 18 years of age and over
- Edentulous in the posterior maxilla, Kennedy classes I or II. Last natural tooth, or previously restored implant in function is canine or first bicuspid.
- Deemed by the investigator as likely to present an initially stabile implant situation suitable for early loading
Who cannot join
- Untreated caries and/or periodontal disease of residual dentition
- History of edentulism in the area of implant placement of less than two months
- Current need for pre-surgical bone or soft tissue augmentation in the planned implant area.
- History of pre-surgical bone or soft tissue augmentation, within12 months, in the planned implant area.
- Sinus floor thickness of less than 5 mm, verified by periapical radiographs.
- Any systemic or local disease or condition that would compromise post-operative healing and/or osseointegration
Show all 11Show fewer
- Need for systemic corticosteroids or any other medication that would compromise post-operative healing and/or osseointegration
- Present alcohol or drug abuse
- Unable or unwilling to return for follow-up visits for a period of 5 years
- Current use of smoking tobacco
- Pregnancy or lactation at the time of enrollment
Trial locations and contacts
3 sites in 2 countries.
3 sites in 2 countries
United States2 sites
University of Iowa, College of Dentistry, Dow's Institute for Dental Research
Iowa City, Iowa, 52242-1010
UTHSCSA
San Antonio, Texas, 78229
About this study
Official title: An Open, Prospective Study to Evaluate Implant Stability, Marginal Bone Adaptation and the Survival Rate of Astra Tech Dental Implant System, Fixture Osseospeed™, in Patients With Tooth Loss in the Posterior Maxilla in an Early Loading Protocol.
The purpose of the study is to evaluate Astra Tech Dental Implant System, Fixture Osseospeed™, in patients with tooth loss in the posterior maxilla in an early loading protocol. Primary objectives are implant stability, marginal bone adaptation and survival rate.
- Conditions
- Jaw, Edentulous, Partially
- Being tested
- OsseoSpeed™
- Keywords
- Jaw, Edentulous, Partially (posterior maxilla)
- Medical subject headings
- Jaw, Edentulous, Partially, Mouth, Edentulous
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
OsseoSpeed™Device
OsseoSpeed™, all dimensions
| Study group | Role | What they receive |
|---|---|---|
| A | Experimental | Not described Receives: Device: OsseoSpeed™ |
What is being measured
The primary outcome is the main question the study is designed to answer.
Implant Survival Rate
An implant that has failed to osseointegrate, lost its osseointegration or fractured was considered a failure effective from the date of removal. The survival rate for individual implants was analyzed at each visit. Cumulative implant survival rate was calculated using Kaplan-Meier life-table estimation and reported as percentage of survived implants.
Measured: At 5 year follow-up
Implant Stability
Implant stability was evaluated using Resonance Frequency Analysis (RFA). The RFA value was automatically translated into an Implant Stability Quotient index (ISQ), which runs from 1 to 100. The ISQ value indicates the level of stability. Low values (<60) indicate low stability, medium values (60-70) indicate medium stability and high values (>70) indicate high stability.
Measured: At 1 year follow-up
Marginal Bone Adaptation
Marginal bone adaptation was expressed as the distance from the implant reference point to the most coronal bone-to-implant contact on the mesial and distal side of the implant. Bone adaptation in millimeters at follow-up visit were compared to values obtained Baseline (loading). Positive value indicates bone gain and negative value bone loss.
Measured: At baseline (loading) and at 5 year follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jul 2008 (estimated)
- Study startDec 2003
- Primary completionSep 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Jaw, Edentulous, PartiallyStudies 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 N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 47 participants (actual)
Sponsor and investigators
- Lead sponsor
- Dentsply Sirona Implants and Consumables
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- James T Mellonig, D.D.S., M.S, Principal investigator, University of Texas
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00711113
- Sponsor's protocol ID
- YA-OSS-0001
- Status last verified
- Jan 2014
- First submitted
- 7 Jul 2008
- Last updated
- 7 Feb 2014
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 Feb 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Open, Prospective Study to Evaluate Implant Stability, Marginal Bone Adaptation and the Survival Rate of Astra Tech Dental Implant System, Fixture Osseospeed™, in Patients With Tooth Loss in the Posterior Maxilla in an Early Loading Protocol.
- ClinicalTrials.gov ID
- NCT00711113
- Acronym / sponsor ID
- YA-OSS-0001
- Conditions
- Jaw, Edentulous, Partially
- Keywords
- Jaw, Edentulous, Partially (posterior maxilla)
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 47 participants (actual)
- Lead sponsor
- Dentsply Sirona Implants and ConsumablesIndustry (pharma, biotech, devices)
- Study start
- Dec 2003
- Primary completion
- Sep 2011 (actual)
- First posted
- 8 Jul 2008 (estimated)
- Results
- Posted 7 Feb 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of the study is to evaluate Astra Tech Dental Implant System, Fixture Osseospeed™, in patients with tooth loss in the posterior maxilla in an early loading protocol. Primary objectives are implant stability, marginal bone adaptation and survival rate.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| A | Experimental | Device: OsseoSpeed™ |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Provision of written informed consent
- 18 years of age and over
- Edentulous in the posterior maxilla, Kennedy classes I or II. Last natural tooth, or previously restored implant in function is canine or first bicuspid.
- Deemed by the investigator as likely to present an initially stabile implant situation suitable for early loading
Key exclusion criteria (11 listed)
- Untreated caries and/or periodontal disease of residual dentition
- History of edentulism in the area of implant placement of less than two months
- Current need for pre-surgical bone or soft tissue augmentation in the planned implant area.
- History of pre-surgical bone or soft tissue augmentation, within12 months, in the planned implant area.
- Sinus floor thickness of less than 5 mm, verified by periapical radiographs.
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 |
|---|---|---|
| OsseoSpeed™OsseoSpeed™, all dimensions | Device | A |
Primary outcome
Implant Survival Rate
Time frame: At 5 year follow-up
An implant that has failed to osseointegrate, lost its osseointegration or fractured was considered a failure effective from the date of removal. The survival rate for individual implants was analyzed at each visit. Cumulative implant survival rate was calculated using Kaplan-Meier life-table estimation and reported as percentage of survived implants.
Implant Stability
Time frame: At 1 year follow-up
Implant stability was evaluated using Resonance Frequency Analysis (RFA). The RFA value was automatically translated into an Implant Stability Quotient index (ISQ), which runs from 1 to 100. The ISQ value indicates the level of stability. Low values (<60) indicate low stability, medium values (60-70) indicate medium stability and high values (>70) indicate high stability.
Marginal Bone Adaptation
Time frame: At baseline (loading) and at 5 year follow-up
Marginal bone adaptation was expressed as the distance from the implant reference point to the most coronal bone-to-implant contact on the mesial and distal side of the implant. Bone adaptation in millimeters at follow-up visit were compared to values obtained Baseline (loading). Positive value indicates bone gain and negative value bone loss.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Feb 2014.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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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.
James T Mellonig, D.D.S., M.S principal investigator
University of Texas
3 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing OsseoSpeed™ in people with Jaw, Edentulous, Partially, run by Dentsply Sirona Implants and Consumables at 3 sites in 2 countries.
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 4 inclusion and 11 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 7 Feb 2014. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in United States, Germany. 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?
Yes. Results are posted in the registry (first posted 7 Feb 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Implant Survival Rate (time frame: At 5 year follow-up). The study lists 3 primary outcomes in all. 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 7 Feb 2014; AzTrials last refreshed its copy on 27 Oct 2026.