CompletedNot Applicable

Influence of Platform-switching on Bone Level Alterations: a 3 Year Randomized Clinical Trial (RCT).

25 participantsStarted 2007-02

Plain-language summary

The concept of platform-switching has been introduced to implant dentistry based on clinical observations of reduced periimplant crestal bone loss. However, published available data are controversial and most studies are limited to 12 months. The aim of the present RCT was to test the hypothesis that platform-switching has a positive impact on crestal bone level changes after 3 years.

Who can participate

Age range

30 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: * good general health * edentulous gap in the posterior mandible for placement of 2 implants * sufficient bone height above the alveolar nerve for placement of implants with a height of 9.5mm * bone width for placement of implants with diameter of 4mm * at least 4mm keratinized mucosa * medium or a thick soft tissue biotype Exclusion Criteria: * infectious disease * diabetes or osteopathy * active periodontitis * medication influencing bone metabolism * lactating or pregnant women

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

Change of vertical implant bone level

Timeframe: Implant insertion (baseline), 3 months (reopening), 4 months (crown mounting), 12, 25 and 38 months

Trial details

NCT IDNCT01917305

SponsorSøren Jepsen

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2010-03

View on ClinicalTrials.gov More Periimplant Crestal Bone Level Changes trials