CompletedNot Applicable

Study to Evaluate Implant Survival Rate of Astra Tech Fixture ST in the Posterior Maxilla With One-stage Surgery and Early Loading

United States19 participantsStarted 2000-09

Plain-language summary

The purpose of this study is primarily to evaluate implant survival rate of Astra Tech Fixture ST placed in the posterior maxilla. A one-stage surgical protocol will be used and the implants will be loaded four weeks after implant installation (early loading). Marginal bone levels, plaque and status of the periimplant mucosa will also be evaluated. The subjects will be followed for three years.

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Age 18 - 75 * Unilateral or bilateral edentulism in the posterior maxilla, last tooth should be the canine or the first bicuspid * Willing to give informed consent Exclusion Criteria: * Bone height \< 5 mm, in the planned implant area * Bone width \< 5 mm, in the planned implant area * Previous bone augmentation procedure in the planned implant area * Previous failures of endosseous implants * Untreated caries and/or periodontal disease of residual dentition * History or presence of any systemic or local disease or condition that would compromise post-operative healing and/or osseointegration * Systemic corticosteroids or any other medication that would compromise post-operative healing and/or osseointegration * Current alcohol or drug abuse * Unable or unwilling to return for follow-up visits for 3 years

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Implant Survival Rate

Timeframe: At follow-up visit: 6 months after implants have been loaded

Implant Survival Rate

Timeframe: At follow-up visit: 1 year after implants have been loaded

Implant Survival Rate

Timeframe: At follow-up visit: 2 years after implants have been loaded

Implant Survival Rate

Timeframe: At follow-up visit: 3 years after implants have been loaded

Trial details

NCT IDNCT00748241

SponsorDentsply Sirona Implants and Consumables

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2008-08

Results submitted2011-08-23

View on ClinicalTrials.gov More Jaw, Edentulous, Partially trials

Plain-language summary

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.