Influence of mouthwashes on the physical properties of orthodontic acrylic resin

Collares, Fabrício Mezzomo; Rostirolla, Flávia Veronezi; Macedo, Érika de Oliveira Dias de; Leitune, Vicente Castelo Branco; Samuel, Susana Maria Werner

doi:10.1590/1677-3225v13n3a08

Cited by 4 publications

(6 citation statements)

References 25 publications

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“…In this way, we could observe the effects of disinfectants even with a short period of contact in an acrylic resin with increased roughness at baseline. In contrast to previous research, 33 the disinfectant solutions composed solely of alcohol and distilled water used as control did not modify the comparison of roughness before and after the contact. However, Birex and Cavicide, the two solutions that contained more components, such as quaternary ammonium compounds, acids, and anionic surfactants, influenced the roughness of the self-curing acrylic resins.…”

Section: Discussioncontrasting

confidence: 93%

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Assessment of surface roughness changes on orthodontic acrylic resin by all-in-one spray disinfectant solutions

Hsu

Balhaddad

García

et al. 2020

J Dent Res Dent Clin Dent Prospects

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Background. The disinfection of orthodontic acrylic resins might change the physical and mechanicalproperties of these materials. We aimed to investigate the impact of four different commercially availabledisinfectants on the surface roughness of acrylic resins used for orthodontic appliances. Methods. Four disinfectant solutions (BirexSE, Opti-Cide3, COEfect MinuteSpray, and CaviCideSpray) were used to disinfect orthodontic acrylic resins using the spraying method. The resins weresubjected to repeated disinfection protocols. Distilled water, also applied via spraying method, was usedas a control. Surface roughness was scrutinized to examine the extent of surface topography changes bystylus profilometry. Data normality was evaluated via the Shapiro–Wilk test, followed by the WilcoxonSigned-Rank test for non-parametric data or paired Student’s t-test for parametric data to compareintra-group differences in roughness before and after the use of the disinfectant solutions. Results. Some of the disinfectants (BirexSE and CaviCide) resulted in significant changes in surfaceroughness values before and after the disinfection compared to the controls (P<0.05). The groups thatwere in contact with distilled water, Opti-Cide, and Coeffect did not exhibit significant differences insurface roughness before and after the intervention (P>0.05). However, from a clinical perspective, theresulting variations in surface roughness (<%0.15) induced by these solutions might not reflect clinicallysignificant differences. Conclusion. The use of disinfectant solutions is unlikely to harm the surface of orthodontic acrylic resins.Oral care providers need to be attentive to the interpretation and implementation of clinically significantchanges in their evidence-based approach regarding potential material damages by disinfection sprays.

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Section: Discussioncontrasting

confidence: 93%

“… 9 , 11 , 38 Another recent study found that the short-term acrylic resin disinfection did not affect the flexural strength, surface roughness, and the color of different commercially available orthodontic acrylic resins. 33 …”

Section: Discussionmentioning

confidence: 99%

Assessment of surface roughness changes on orthodontic acrylic resin by all-in-one spray disinfectant solutions

Hsu

Balhaddad

García

et al. 2020

J Dent Res Dent Clin Dent Prospects

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“…It seems probable the conventional glass-ionomer cements would be similarly affected. The reason for this effect is not clear as the pH of Plax is pH 7.00 ± 0.04 [26], so any effect is not due to etching by an acidic composition. There seem to be a component in mouthwash formulations, possibly ethanol, that enhances the initial uptake of fluoride ion from solution, and this may also be responsible for reducing the hardness of the cement surface.…”

Section: Discussionmentioning

confidence: 97%

Uptake of Fluoride by Glass-Ionomer Dental Cements From a Commercial Fluoridated Mouthwash

Czarencka¹

2018

Ceramics - Silikaty

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The ability of glass-ionomer dental cements to take up fluoride from a fluoridated mouthwash has been determined, and shown to vary somewhat with the degree of maturation (ageing). Three commercial conventional glass-ionomer cements were used to produce sets of five discs (6 mm diameter by 2 mm thickness). Discs were aged for 24 h or 1 month at 37°C then placed in 5 cm 3 volumes of commercial fluoridated mouthwash (Plax, ex Colgate Palmolive, Guildford, UK) at a nominal concentration of 112 ppm. Free fluoride ion concentration was measured in samples stored at room temperature for 30 min, 1, 2, 3, 4 and 5 h, using an ion selective electrode. Under these conditions cements were found to take up similar amounts of fluoride at t = 30 minutes, regardless of their age. However, at 5 hours the cements samples matured for 24 hours took up significantly more fluoride than the samples matured for 1 month. In this way it was shown that degree of maturation influenced the ability to take up fluoride without affecting the initial uptake rate. These results suggest that fluoridated mouthwashes may be a valuable source of fluoride for recharging glass-ionomer cements.

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“…Immersion in disinfectant solutions may increase surface roughness 15,16 , increasing microorganisms' adhesion, biofilm formation, and associated diseases 1,5,7 . The increase of surface roughness leads to the further difficulty of biofilm removal, as it adheres to the rough surface and penetrates through porosities, facilitating the survival of microorganisms against regular hygiene methods 27 .…”

Section: Discussionmentioning

confidence: 99%

“…However, they may decrease resins microhardness, flexural strength, and increase the surface roughness [12][13][14] . Commercial mouthwashes such as those disinfectants composed by alcohols, sodium hydroxide, and sodium benzoate, and those without alcohol but compose by chlorhexidine digluconate, cetylpiridinium chloride, phosphoric acid, and sodium benzoate were also previously tested in acrylic resins and negatively affected microhardness and surface roughness 15,16 . In this context, disinfectant solutions that do not compromise physical properties and surface texture of acrylic resins are necessary to reduce the biofilm formation 17 .…”

mentioning

confidence: 99%

Avaliação de soluções antifúngicas de guanidina para resina base de dentadura: um estudo in vitro

Gama

Leitune

García

et al. 2020

R. Fac. Odontol. Porto Alegre

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Background: The purposes of this study were: (1) to formulate polyhexamethylene guanidine hydrochloride (PHMGH) solutions at different concentrations; (2) to evaluate their antifungal activity against a mature biofilm of Candida albicans on acrylic resins; (3) to evaluate possible effects on acrylic resins flexural strength and surface roughness. Methods: PHMGH solutions were formulated with distilled water and 0.125, 0.250, or 0.5 wt.% of PHMGH. One group without PHMGH was used as control. For antifungal activity analysis, acrylic resin specimens were contaminated with C. albicans. Specimens were immersed in PHMGH solutions or distilled water for 5 or 10 min. Ultimate flexural strength and surface roughness of acrylic resins were evaluated. Results: All PHMGH solutions at 5 or 10 min showed antifungal activity compared to the control group (p

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Influence of mouthwashes on the physical properties of orthodontic acrylic resin

Cited by 4 publications

References 25 publications

Assessment of surface roughness changes on orthodontic acrylic resin by all-in-one spray disinfectant solutions

Assessment of surface roughness changes on orthodontic acrylic resin by all-in-one spray disinfectant solutions

Uptake of Fluoride by Glass-Ionomer Dental Cements From a Commercial Fluoridated Mouthwash

Avaliação de soluções antifúngicas de guanidina para resina base de dentadura: um estudo in vitro

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