CompletedNot Applicable

Accuracy of Static Computer-assisted Implant Surgery in Distal Free-end Scenarios

Spain27 participantsStarted 2012-09-11

Plain-language summary

Technological advances have influenced the approach to implant treatment. One of the fields presently experiencing rapid development is static computer-assisted guided surgery (sCAIS), which allows transfer of the virtual implant planning to the mouth of the patient, based on the use of a surgical guide. In sCAIS there is a deviation between the virtually planned implant position and the actual position of the implant placed during surgery. A recent review analyzed only fully guided implants and recorded a mean coronal horizontal deviation (CHD) of 1.12 mm (standard deviation \[SD\] = 0.08), a mean apical horizontal deviation (AHD) of 1.41 mm (SD = 0.1), a mean vertical deviation (VD) of 0.12 mm (SD = 0.23), and a mean angular deviation (AD) of 3.58º (SD = 0.2). The aim of the present study was to compare the accuracy of CAD-CAM and conventional guides in candidates for distal free-end implant treatment, and to analyze the effects of possible confounding factors inherent to the patient or the surgical technique employed.A prospective, controlled and blinded quasi-experimental study was carried out involving 27 patients with 76 implants distributed into two groups according to the surgical guide manufacturing approach used: conventional (control group \[CG\]) or CAD-CAM (test group \[TG\]). The implants were planned virtually with the planning software, and the surgical guides were manufactured. Fully guided implant placement was carried out, and the deviations were measured along with other secondary variables as potential confounding factors.

Who can participate

Age range

18 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: * Indication of fixed prosthesis over at least two consecutive implants. * Sufficient residual crest for placing at least two implants 4.1 mm in diameter and 8 mm in length. * Mature bone and healthy soft tissues. * Implants placed via fully guided surgery. * Age \> 18 years. * Good general health. * Non-smokers or smokers of \< 10 cigarettes/day (pipe smokers excluded). * Oral hygiene index \< 3 and bleeding index \< 25%. * Pre- and post- CBCT scan for analysis of accuracy. * Periapical radiographs at loading and after one year. Exclusion Criteria: * Contraindications to implant therapy * Locations with acute infection. * Pregnant or nursing women. * Lack of follow-up.

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

Accuracy in implants: vertical, apical and coronal horizontal deviations

Timeframe: 1 week post-operative

Accuracy in implants: angular deviation

Timeframe: 1 weel post-operatiive

Trial details

NCT IDNCT06404385

SponsorUniversity of Valencia

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2019-12-17

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