Adhesion of <i>Streptococci</i> to various orthodontic composite resins

Velazquez-Enriquez, Ulises; Vilchis, Rogelio José Scougall; Contreras‐Bulnes, Rosalía; Flores-Estrada, Jaime; Uematsu, S; Yamaguchi, Ryosuke

doi:10.1111/adj.12027

Cited by 8 publications

(5 citation statements)

References 23 publications

(50 reference statements)

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“…It has been reported that glass ionomer and resin composites have a tendency to collect more plaque or microor-ganisms than different restorative materials in vivo and in vitro (30). The adhesion of microorganisms to the orthodontic composite resin is attributed to van der Waals forces, as well as hydrophobic and electrostatic factors, and Streptococcus mutans adhesion to composite resin is greater than to orthodontic appliances (31). In the present study, excess adhesive was removed from around the brackets during the bonding process to simulate clinical practice.…”

Section: Discussionmentioning

confidence: 99%

Qualitative Evaluation of the Bracket-Adhesive-Enamel Junction of Metal Orthodontic Brackets: A Preliminary Report

et al. 2019

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Objectives. The purpose of this in vitro investigation was to evaluate qualitatively the surface topography at the bracket-adhesive-enamel junction, bonded to the buccal and lingual surfaces of premolars with composite resin and resin-modified glass-ionomer orthodontic adhesives, using two methods of adhesive removal: a dental explorer and a micro brush. Methods. Forty premolar surfaces were allocated to four groups of 10/ each, 20/buccal and 20/lingual surfaces. The brackets were bonded to the surface of the enamel and any extra adhesive was removed with a dental explorer or a micro brush. Specimens were evaluated and scored by two calibrated independent raters, at the bracketadhesive-enamel junction, for adhesive overlap on the bracket, the smoothness of the surface, as well as the presence of projections and depressions, using a digital microscope. The Fisher-exact statistical test was conducted to compare the different groups. Results. Regardless of the method used to remove the adhe-sives, all groups showed partial or complete overlap of the adhesive on the bracket. No statistical difference was found between the groups for adhesive overlap (P=1.0). However, resin-modified glass-ionomer was found to be statistically significantly (P<0.05) better than composite resin in both smoothness and the lack of projections or depressions, regardless of the instrument of removal. Conclusion. Removing excess adhesive with a dental explorer or a micro brush is not an ideal method for adhesive removal, as partial or complete overlap of the adhesive on the bracket existed in all groups. On the other hand, resin-modified glassionomer was a superior material to composite resin for better smoothness and surface topography at the bracket-adhesive-enamel junction.

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Section: Discussionmentioning

confidence: 99%

Qualitative Evaluation of the Bracket-Adhesive-Enamel Junction of Metal Orthodontic Brackets: A Preliminary Report

et al. 2019

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“…The number of S. mutans and S. sobrinus microorganism in stimulated saliva samples does not appear to be significantly different between patients with stainless steel brackets and patients with plastic brackets [36] . Enlight orthodontic composite resin has less adhesion of S. sobrinus and S. mutans which may reduce enamel demineralization and risk of white spot formation [37] .…”

Section: Diagnosismentioning

confidence: 99%

Streptococcus: An orthodontic point of view

Gomez¹,

Lozano²,

Alanis³

et al. 2021

Int. J. Appl. Dent. Sci.

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Introduction: Streptococcus mutans and S. sobrinus are the main causative agents of human dental caries. Objective: To analyze the literature on different genera of Streptococcus such as S. mutans, S. gordonii, S. sanguis, S. sobrinus and S. salivarius in relation to orthodontics.Methodology: Articles on the subject published through the PubMed, SCOPUS and Google Academic databases were analyzed, with an emphasis on the last 5 years. It was carried out with the words "Streptococcus mutans", "S. gordonii", "S. sanguis", "S. sobrinus ", "S. salivarius". Results: S. mutans: produces dental caries and demineralization of the enamel. It can be controlled with proper brushing techniques and oral hygiene. S. gordonii: predominates in the oral microflora and triggers cariogenic biofilms, is present in the formation of white spots around brackets and its development can be inhibited with fluoride-containing rinses. S. sanguis: present in orthodontic appliances, they have adverse effects that help the formation of dental plaque, mouthwash with nanio TiO2 and a good mechanical and chemical cleaning help to eliminate them. S. sobrinus: forms white spots, demineralizes enamel and causes dental caries. S. salivarius: its acid-base physiology plays an important role, the use of orthodontic appliances can produce an increase in bacteria which is associated with metal alloys. Conclusion: Streptococcus species are a problem in orthodontics, they can be eliminated by using Enlight composite resin, 0.02% chlorhexidine rinses, mouthwash with nanioTiO2 and a good mechanical and chemical brushing technique.

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“…Biofilm has a crucial role in the adhesion of these microorganisms to the dental surface [2,3]. Enamel demineralization is caused by the organic acids produced by various microorganisms, mainly Streptococcus mutans (S. mutans) and Streptococcus sobrinus (S. sobrinus), which are identified as the main pathogens in dental caries [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Orthodontic treatment, using fixed appliances (brackets, bands, archwires, ties), provides suitable conditions to bring about the colonization of cariogenic microorganisms. Because fixed appliances promote the retention and adhesion of biofilm, dental hygiene becomes more complicated, and microorganisms increase the risk of enamel demineralization [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Silver nanoparticles in orthodontics, a new alternative in bacterial inhibition: in vitro study

et al. 2020

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Background: The purpose of the study is to assess the antiadherent and antibacterial properties of surfacemodified different orthodontic brackets with silver nanoparticles against Streptococcus mutans and Streptococcus sobrinus, using radiomarker. Methods: In this study evaluated quantitatively the adherence of Streptococci to orthodontic brackets, 300 samples of orthodontic brackets were selected and classified in to 10 groups as follow: GIn (InVu-Roth), GIIn (System-AlexanderLTS), GIIIn (Gemini-Roth), GIVn (NuEdge-Roth), GVn (Radiance plus-Roth), GVI (InVu-Roth), GVII (System-AlexanderLTS), GVIII (Gemini-Roth), GIX (NuEdge-Roth), GX (Radiance plus-Roth). All the samples were sonicated and Streptococci were cultivated by gender. A radioactive marker (3 H) was used to codify the bacteria and measure them. After that, the brackets were submerged in a radiolabelled solution, and the radiation was measured. The statistical analysis was calculated with ANOVA test (Sheffè post hoc). Results: The results showed significant differences were found among the groups. GIIIn shown the lowest scores for both bacteria; in contrast, GIX for Streptococcus mutans and GVI for Streptococcus sobrinus were the highest values. Conclusions: Surface modification of orthodontic brackets with silver nanoparticles can be used to prevent the accumulation of dental plaque and the development of dental caries during orthodontic treatment.

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Adhesion of Streptococci to various orthodontic composite resins

Abstract: Background: This investigation aimed to determine quantitatively the adhesion of Streptococcus mutans and Streptococcus sobrinus to orthodontic composite resins that were tested simultaneously using radio-markers.

Cited by 8 publications

References 23 publications

Qualitative Evaluation of the Bracket-Adhesive-Enamel Junction of Metal Orthodontic Brackets: A Preliminary Report

Qualitative Evaluation of the Bracket-Adhesive-Enamel Junction of Metal Orthodontic Brackets: A Preliminary Report

Streptococcus: An orthodontic point of view

Silver nanoparticles in orthodontics, a new alternative in bacterial inhibition: in vitro study

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