In-vitro effects of novel periodontal scalers with a planar ultrasonic piezoelectric transducer on periodontal biofilm removal, dentine surface roughness, and periodontal ligament fibroblasts adhesion.
Clin Oral Investig
; 28(5): 294, 2024 May 03.
Article
in En
| MEDLINE
| ID: mdl-38698252
ABSTRACT
OBJECTIVES:
To compare ultrasonic scaler prototypes based on a planar piezoelectric transducer with different working frequencies featuring a titanium (Ti-20, Ti-28, and Ti-40) or stainless steel (SS-28) instrument, with a commercially available scaler (com-29) in terms of biofilm removal and reformation, dentine surface roughness and adhesion of periodontal fibroblasts. MATERIALS ANDMETHODS:
A periodontal multi-species biofilm was formed on specimens with dentine slices. Thereafter specimens were instrumented with scalers in a periodontal pocket model or left untreated (control). The remaining biofilms were quantified and allowed to reform on instrumented dentine slices. In addition, fibroblasts were seeded for attachment evaluation after 72 h of incubation. Dentine surface roughness was analyzed before and after instrumentation.RESULTS:
All tested instruments reduced the colony-forming unit (cfu) counts by about 3 to 4 log10 and the biofilm quantity (each p < 0.01 vs. control), but with no statistically significant difference between the instrumented groups. After 24-hour biofilm reformation, no differences in cfu counts were observed between any groups, but the biofilm quantity was about 50% in all instrumented groups compared to the control. The attachment of fibroblasts on instrumented dentine was significantly higher than on untreated dentine (p < 0.05), with the exception of Ti-20. The dentine surface roughness was not affected by any instrumentation.CONCLUSIONS:
The planar piezoelectric scaler prototypes are able to efficiently remove biofilm without dentine surface alterations, regardless of the operating frequency or instrument material. CLINICAL RELEVANCE Ultrasonic scalers based on a planar piezoelectric transducer might be an alternative to currently available ultrasonic scalers.Key words
Full text:
1
Database:
MEDLINE
Main subject:
Periodontal Ligament
/
Surface Properties
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Titanium
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Dental Scaling
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Biofilms
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Dentin
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Fibroblasts
Limits:
Humans
Language:
En
Journal:
Clin Oral Investig
Journal subject:
ODONTOLOGIA
Year:
2024
Type:
Article
Affiliation country: