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Biofilm removal from difficult-to-reach places via secondary cavitation within a constrained geometry mimicking a periodontal/peri-implant pocketVolk, Marko, mikrobiolog, 1997- ...Biofilm removal from the apical region of the periodontal or peri-implant pocket, which is very difficult to achieve with mechanical instruments, is a major unresolved issue in dentistry. Here, we ... propose the use of photoacoustically induced streaming and secondary cavitation to achieve superior cleaning efficacy in the apical region of the periodontal and peri-implant pocket. We have used a prefabricated narrow wedge system that mimics the consistency of periodontal and peri-implant pockets of both healthy and severely inflamed tissue. We studied the effect of single-pulse modality Er:YAG on Pseudomonas aeruginosa biofilm removal. We used different laser energies, fiber-tip positions, and laser treatment durations. The cleaning process was monitored in real-time with a high-speed camera after each individual laser pulse application. The obtained results suggest that biofilm cleaning efficacy in a difficult-to-reach place in healthy model tissue is directly related to the onset of secondary cavitation bubble formation, which correlates with a significant improvement of biofilm removal from the apical region of the periodontal or peri-implant pocket. In comparison to the healthy tissue model, the laser energy in inflamed tissue model had to be increased to obtain comparable biofilm cleaning efficacy. The advantage of photoacoustic cavitation compared to other methods is that laser-induced cavitation can trigger secondary cavitation at large distances from the point of laser application, which in principle allows biofilm removal at distant locations not reachable with a laser fiber tip or other mechanical instruments.Source: Ultrasonics Sonochemistry. - ISSN 1350-4177 (Vol. 104, [article no.] 106832, Mar. 2024, str- 1-8)Type of material - article, component partPublish date - 2024Language - englishCOBISS.SI-ID - 186706179
Author
Volk, Marko, mikrobiolog, 1997- |
Molan, Katja |
Šavli, Dominik |
Terlep, Saša |
Levičnik Hoefferle, Špela |
Gašpirc, Boris |
Lukač, Matjaž |
Jezeršek, Matija |
Stopar, David
Topics
biofilm |
zobni vsadki |
obzobni žepek |
fotoakustično odstranjevanje biofilmov |
lasersko čiščenje |
kavitacija |
biofilm removal |
periodontal pocket |
peri-implant pocket |
cavitation |
photoacoustic cleaning |
Er:YAG USP
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Volk, Marko, mikrobiolog, 1997- | 57307 |
Molan, Katja | 39099 |
Šavli, Dominik | ![]() |
Terlep, Saša | 36800 |
Levičnik Hoefferle, Špela | 29435 |
Gašpirc, Boris | 12446 |
Lukač, Matjaž | 09757 |
Jezeršek, Matija | 21238 |
Stopar, David | 13005 |
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