Antibacterial and Remineralizing Fillers in Experimental Orthodontic Adhesives

Autor: Marianna Arakelyan, Salvatore Sauro, Felipe Weidenbach Degrazia, Carolina Jung Ferreira, Gabriela de Souza Balbinot, Fabrício Mezzomo Collares, Vicente Castelo Branco Leitune
Přispěvatelé: UCH. Departamento de Odontología, Producción Científica UCH 2019
Jazyk: angličtina
Rok vydání: 2019
Předmět:
adhesive
Bactericidas
02 engineering and technology
Bacterial growth
Orthodontics
Methacrylate
lcsh:Technology
Adhesivos dentales
Article
Dental adhesives
Contact angle
03 medical and health sciences
chemistry.chemical_compound
0302 clinical medicine
anti-bacterial agents
Ortodoncia
General Materials Science
Materiales dentales
quaternary ammonium compounds
lcsh:Microscopy
Softening
mineral deposition
lcsh:QC120-168.85
Germicides
orthodontic
lcsh:QH201-278.5
Chemistry
lcsh:T
030206 dentistry
021001 nanoscience & nanotechnology
Solvent
boron nitride
Boron nitride
lcsh:TA1-2040
Dental materials
lcsh:Descriptive and experimental mechanics
Adhesive
lcsh:Electrical engineering. Electronics. Nuclear engineering
0210 nano-technology
Antibacterial activity
lcsh:Engineering (General). Civil engineering (General)
lcsh:TK1-9971
Nuclear chemistry
Zdroj: Materials, Vol 12, Iss 4, p 652 (2019)
Materials
CEU Repositorio Institucional
Fundación Universitaria San Pablo CEU (FUSPCEU)
Volume 12
Issue 4
ISSN: 1996-1944
Popis: Orthodontic adhesives with antimicrobial and remineralizing properties may be an alternative to control white spot lesions around brackets. The aim of this study is to develop an experimental orthodontic adhesive containing boron nitride nanotubes (BNNT) and alkyl trimethyl ammonium bromide (ATAB). Methacrylate (BisGMA and TEGDMA) monomers were used to formulate the adhesives. Four experimental groups were produced with the addition of 0.1 wt.% BNNT (GBNNT)
0.1 wt.% ATAB (GATAB)
and 0.2 wt.% BNNT with ATAB (GBNNT/ATAB)
in the control group, no fillers were added (GCtrl). The degree of conversion, cytotoxicity, softening in solvent, contact angle and free surface energy, antibacterial activity, shear bond strength, and mineral deposition were evaluated. Adhesives achieved degree of conversion higher than 50% and cell viability higher than 90%. GBNNT and GATAB adhesives exhibited reduced softening in solvent. Mean free surface energy was decreased in the GBNNT adhesive. Significant reduction in bacterial growth was observed in the GBNNT/ATAB. No statistical difference was found for shear bond strength. Mineral deposition was found in GBNNT, GATAB, and GBNNT/ATAB groups after 14 and 28 days. The addition of 0.2% BNNT/ATAB to an experimental orthodontic adhesive inhibited bacterial growth and induced mineral deposition without affecting the properties of the material.
Databáze: OpenAIRE
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