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Influence of Different Zirconia Surface Treatments on Biofilm Formation

Influence of Different Zirconia Surface Treatments on Biofilm Formation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04181099
Acronym
Biofilm2020
Enrollment
16
Registered
2019-11-29
Start date
2020-01-01
Completion date
2020-08-01
Last updated
2021-04-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Surface Finish

Keywords

dental implant, zirconia, biofilm

Brief summary

The aim is to test the influence of surface finish on biofilm formation on the transmucosal part of zirconia implants in an in vivo study. Sixteen test person will therefore receive an orthodontic apparatus containing the specimens with the respective surfaces and carry them for 2x 24h. The primary outcome is the spectormetrical quantification (OD value) of biofilm on the specimens that have been carried by the test person over 24h. Biofilm will be analysed using scanning electron microscopy.

Interventions

OTHERImplant neck surface

The biofilm formation is tested on discs manufactured of zirconia with different surfaces in vivo using orthodontic devices that the participants carry over 24h

Sponsors

University of Basel
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* No systematic antibiotic therapy during the last 3 months * Good oral health and compliance (PI and BI \<20%) * No sign of parodontal disease or other inflammatory changes in the mouth * Non-smoker

Exclusion criteria

* Disease that requires antibiotic therapy * Pressure marks due to the orthodontic apparatus that can not be eliminated * Other unexpected complications that could be related to the orthodontic apparatus

Design outcomes

Primary

MeasureTime frameDescription
Safranin Staining3 monthsThe biofilm on the discs is quantified using safranin staining and evaluated with the measurement of optical density using a photospectrometer

Secondary

MeasureTime frameDescription
SEM3 monthsThe morphology of the biofilm is analyzed using scanning electron microscopy

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026