Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties
Abstract Objectives Considering the fact that resin infiltrants lack antibacterial activity, this study assessed the influence of the quaternary ammonium monomer dimethylaminohexadecyl methacrylate (DMAHDM) and amorphous calcium phosphate nanoparticles (NACP) on the physical and antibacterial prop...
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| Format: | Article |
| Language: | English |
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University of São Paulo
2024-12-01
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| Series: | Journal of Applied Oral Science |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572024000100464&lng=en&tlng=en |
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| _version_ | 1850106745880313856 |
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| author | Ana Ferreira SOUZA May Anny Alves FRAGA Américo Bortolazzo CORRER Flávio Henrique Baggio AGUIAR Giselle Maria MARCHI |
| author_facet | Ana Ferreira SOUZA May Anny Alves FRAGA Américo Bortolazzo CORRER Flávio Henrique Baggio AGUIAR Giselle Maria MARCHI |
| author_sort | Ana Ferreira SOUZA |
| collection | DOAJ |
| description | Abstract Objectives Considering the fact that resin infiltrants lack antibacterial activity, this study assessed the influence of the quaternary ammonium monomer dimethylaminohexadecyl methacrylate (DMAHDM) and amorphous calcium phosphate nanoparticles (NACP) on the physical and antibacterial properties of an experimental resin infiltrant (ERI). Methodology The following groups were established: ERI (75/25 wt.% TEGDMA/BISEMA), ERI + 2.5% DMAHDM (2.5DM), ERI + 5% DMAHDM (5DM), ERI + 2% NACP (NACP), ERI + 2.5% DMAHDM + 2% NACP (2.5DM_NACP), ERI + 5% DMAHDM + 2% NACP (5DM_NACP), and Icon® (IC), a commercial resin infiltrant. Degree of conversion (DC; n=4), sorption and solubility (SO/SOL; n=8), and contact angle (CA; n=10) tests were conducted. Biofilm biomass (BB; n=6) and bacterial metabolism (BM; n=8) were evaluated after Streptococcus mutans (UA159) cultivation for 48 h on material samples. Data were evaluated by one-way ANOVA and Tukey or Games-Howell post hoc tests (α=0.05). Results IC exhibited the highest DC, with no difference from 2.5DM and 5DM. IC showed the lowest CA. IC had the lowest SO, followed by ERI, which had the lowest SOL, with no difference from IC. 5DM_NACP showed the lowest biofilm biomass, similar to 2.5DM and 5DM. Resin infiltrants containing DMAHDM showed reduced bacterial metabolism. Conclusions DMAHDM, with or without NACP, demonstrated significant antibacterial activity, while NACP impaired DC. Both DMAHDM and NACP increased the contact angle, sorption, and solubility of the resin infiltrant, which may affect the material’s clinical performance. |
| format | Article |
| id | doaj-art-b40131365a184ee08a4002a5a1be4528 |
| institution | OA Journals |
| issn | 1678-7765 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj-art-b40131365a184ee08a4002a5a1be45282025-08-20T02:38:45ZengUniversity of São PauloJournal of Applied Oral Science1678-77652024-12-013210.1590/1678-7757-2024-0263Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial propertiesAna Ferreira SOUZAhttps://orcid.org/0000-0002-7961-4886May Anny Alves FRAGAhttps://orcid.org/0000-0002-9323-0862Américo Bortolazzo CORRERhttps://orcid.org/0000-0002-3306-7055Flávio Henrique Baggio AGUIARhttps://orcid.org/0000-0003-3389-5536Giselle Maria MARCHIhttps://orcid.org/0000-0002-0945-1305Abstract Objectives Considering the fact that resin infiltrants lack antibacterial activity, this study assessed the influence of the quaternary ammonium monomer dimethylaminohexadecyl methacrylate (DMAHDM) and amorphous calcium phosphate nanoparticles (NACP) on the physical and antibacterial properties of an experimental resin infiltrant (ERI). Methodology The following groups were established: ERI (75/25 wt.% TEGDMA/BISEMA), ERI + 2.5% DMAHDM (2.5DM), ERI + 5% DMAHDM (5DM), ERI + 2% NACP (NACP), ERI + 2.5% DMAHDM + 2% NACP (2.5DM_NACP), ERI + 5% DMAHDM + 2% NACP (5DM_NACP), and Icon® (IC), a commercial resin infiltrant. Degree of conversion (DC; n=4), sorption and solubility (SO/SOL; n=8), and contact angle (CA; n=10) tests were conducted. Biofilm biomass (BB; n=6) and bacterial metabolism (BM; n=8) were evaluated after Streptococcus mutans (UA159) cultivation for 48 h on material samples. Data were evaluated by one-way ANOVA and Tukey or Games-Howell post hoc tests (α=0.05). Results IC exhibited the highest DC, with no difference from 2.5DM and 5DM. IC showed the lowest CA. IC had the lowest SO, followed by ERI, which had the lowest SOL, with no difference from IC. 5DM_NACP showed the lowest biofilm biomass, similar to 2.5DM and 5DM. Resin infiltrants containing DMAHDM showed reduced bacterial metabolism. Conclusions DMAHDM, with or without NACP, demonstrated significant antibacterial activity, while NACP impaired DC. Both DMAHDM and NACP increased the contact angle, sorption, and solubility of the resin infiltrant, which may affect the material’s clinical performance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572024000100464&lng=en&tlng=enDental white spotsDental enamelQuaternary ammonium compoundsBiofilmsComposite resinsDental caries |
| spellingShingle | Ana Ferreira SOUZA May Anny Alves FRAGA Américo Bortolazzo CORRER Flávio Henrique Baggio AGUIAR Giselle Maria MARCHI Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties Journal of Applied Oral Science Dental white spots Dental enamel Quaternary ammonium compounds Biofilms Composite resins Dental caries |
| title | Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties |
| title_full | Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties |
| title_fullStr | Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties |
| title_full_unstemmed | Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties |
| title_short | Resin infiltrant with antibacterial activity: effects of incorporation of DMAHDM monomer and NACP on physical and antimicrobial properties |
| title_sort | resin infiltrant with antibacterial activity effects of incorporation of dmahdm monomer and nacp on physical and antimicrobial properties |
| topic | Dental white spots Dental enamel Quaternary ammonium compounds Biofilms Composite resins Dental caries |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572024000100464&lng=en&tlng=en |
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