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Baca-Solano G, Contreras-Bulnes R, Rodríguez-Vilchis LE, Teutle-Coyotecatl B, Velazquez-Enriquez U. Effect of some industrialized acidic beverages on the roughness of pit and fissure sealants: an in vitro study. J Clin Pediatr Dent 2023; 47:36-43. [PMID: 36627218 DOI: 10.22514/jocpd.2022.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/29/2022] [Indexed: 11/23/2022] Open
Abstract
This study evaluated in vitro the roughness of the pit and fissure sealants (PFS) after immersion in some industrialized acidic beverages. 120 discs (5 mm diameter and 2 mm thick) of 4 commercial brands (3M, Ivoclar, Ultradent, and VOCO) were immersed in 1.5 mL of 3 different industrialized acid beverages (soft drink, apple juice, and fermented milk) and incubated at 37 ºC for 15 and 30 days. Surface roughness (Ra and Rz) was measured at the beginning (0), 15 (1), and 30 days (2) after immersion, using a profilometer, under the standard ISO 4287-1997. Data were analyzed with one-way analysis of variance (One-way ANOVA) and repeated measures analysis of variance (Repeated measures ANOVA) test (p < 0.05). Ultradent and VOCO had the higher baseline surface roughness values, while 3M presented the lower baseline values (p > 0.05). After 15 and 30 days of immersion, the 3M group still showed the minimum values of surface roughness (p < 0.05). In addition, the maximum roughness values were seen in group UC (Ultradent/Coca-Cola) (p < 0.05). The surface roughness of the PFS increased according to the period of immersion in some industrialized acidic beverages. This increase was specific to each commercial brand. Therefore, the 3M PFS presented the best performance before and after immersion in the beverages.
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Affiliation(s)
- Georgina Baca-Solano
- Center for Research and Advanced Studies in Dentistry, School of Dentistry, Autonomous University of Mexico State, 50130 Toluca, Mexico State, Mexico
| | - Rosalía Contreras-Bulnes
- Center for Research and Advanced Studies in Dentistry, School of Dentistry, Autonomous University of Mexico State, 50130 Toluca, Mexico State, Mexico
| | - Laura Emma Rodríguez-Vilchis
- Center for Research and Advanced Studies in Dentistry, School of Dentistry, Autonomous University of Mexico State, 50130 Toluca, Mexico State, Mexico
| | - Bernardo Teutle-Coyotecatl
- Center for Research and Advanced Studies in Dentistry, School of Dentistry, Autonomous University of Mexico State, 50130 Toluca, Mexico State, Mexico
| | - Ulises Velazquez-Enriquez
- Center for Research and Advanced Studies in Dentistry, School of Dentistry, Autonomous University of Mexico State, 50130 Toluca, Mexico State, Mexico
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Teutle-Coyotecatl B, Contreras-Bulnes R, Rodríguez-Vilchis LE, Scougall-Vilchis RJ, Velazquez-Enriquez U, Almaguer-Flores A, Arenas-Alatorre JA. Effect of Surface Roughness of Deciduous and Permanent Tooth Enamel on Bacterial Adhesion. Microorganisms 2022; 10:microorganisms10091701. [PMID: 36144302 PMCID: PMC9501044 DOI: 10.3390/microorganisms10091701] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
The adhesion of some bacteria has been attributed to critical levels of roughness in hard tissues, which increases the risk of developing caries. The objective of this work was to assess the effect of deciduous and permanent tooth enamel surface roughness on bacterial adhesion. One hundred and eight samples of deciduous and permanent enamel were divided into two groups (n = 54). G1_DE deciduous enamel and G2_PE permanent enamel. The surface roughness was measured by profilometry and atomic force microscopy (AFM). Subsequently, the evaluation of bacterial adherence was carried out in triplicate by means of the XTT cell viability test. Additionally, bacterial adhesion was observed using scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). The average values of the micrometric roughness in both groups were similar; however, in the nanometric scale they presented significant differences. Additionally, the G1_DE group showed the highest amount of adhered S. mutans and S. sanguinis compared to the G2_EP group. Although the roughness of deciduous and permanent enamel showed contrasting results according to the evaluation technique (area and scale of analysis), bacterial adhesion was greater in deciduous enamel; hence, enamel roughness may not be a determining factor in the bacterial adhesion phenomenon.
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Affiliation(s)
- Bernardo Teutle-Coyotecatl
- Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Universidad Autónoma del Estado de México, Toluca, Estado de México C.P. 50130, Mexico
| | - Rosalía Contreras-Bulnes
- Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Universidad Autónoma del Estado de México, Toluca, Estado de México C.P. 50130, Mexico
- Correspondence:
| | - Laura Emma Rodríguez-Vilchis
- Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Universidad Autónoma del Estado de México, Toluca, Estado de México C.P. 50130, Mexico
| | - Rogelio José Scougall-Vilchis
- Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Universidad Autónoma del Estado de México, Toluca, Estado de México C.P. 50130, Mexico
| | - Ulises Velazquez-Enriquez
- Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Universidad Autónoma del Estado de México, Toluca, Estado de México C.P. 50130, Mexico
| | - Argelia Almaguer-Flores
- Laboratorio de Biointerfases, Facultad de Odontología, Universidad Nacional Autónoma de México, Delegación Coyoacán, Ciudad de México C.P. 04510, Mexico
| | - Jesús Angel Arenas-Alatorre
- Instituto de Física, Universidad Nacional Autónoma de México, Delegación Coyoacán, Ciudad de México C.P. 04510, Mexico
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Teutle-Coyotecatl B, Contreras-Bulnes R, Scougall-Vilchis RJ, Almaguer-Flores A, Rodríguez-Vilchis LE, Velazquez-Enriquez U, Alatorre JÁA. Effect of Er:YAG laser irradiation on deciduous enamel roughness and bacterial adhesion: An in vitro study. Microsc Res Tech 2019; 82:1869-1877. [PMID: 31373738 DOI: 10.1002/jemt.23354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/21/2019] [Accepted: 07/16/2019] [Indexed: 11/07/2022]
Abstract
Laser irradiation has been proposed as a preventive method against dental caries since it is capable to inhibit enamel demineralization by reducing carbonate and modifying organic matter, yet it can produce significant morphological changes. The purpose of this study was to evaluate the influence of Er:YAG laser irradiation on superficial roughness of deciduous dental enamel and bacterial adhesion. Fifty-four samples of deciduous enamel were divided into three groups (n = 18 each). G1_control (nonirradiated); G2_100 (7.5 J/cm2 ) and G3_100 (12.7 J/cm2 ) were irradiated with Er:YAG laser at 7.5 and 12.7 J/cm2 , respectively, under water irrigation. Surface roughness was measured before and after irradiation using a profilometer. Afterwards, six samples per group were used to measure bacterial growth by XTT cell viability assay. Adhered bacteria were observed using confocal laser scanning microscopy (CLSM) and a scanning electron microscopy (SEM). Paired t-, one-way analysis of variance (ANOVA), Kruskal-Wallis and pairwise Mann-Whitney U tests were performed to analyze statistical differences (p < .05). Before treatment, samples showed homogenous surface roughness, and after Er:YAG laser irradiation, the surfaces showed a significant increase in roughness values (p < .05). G3_100 (12.7 J/cm2 ) showed the highest amount of Streptococcus mutans adhered (p < .05). The increase in the roughness of the tooth enamel surfaces was proportional to the energy density used; the increase in surface roughness caused by laser irradiation did not augment the adhesion of Streptococcus sanguinis; only the use of the energy density of 12.7 J/cm2 favored significantly the adhesion of S. mutans.
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Affiliation(s)
- Bernardo Teutle-Coyotecatl
- Universidad Autónoma del Estado de México, Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO). Jesús Carranza esq. Paseo Tollocan, Colonia Universidad, Toluca, Estado de México, México, C.P. 50130
| | - Rosalía Contreras-Bulnes
- Universidad Autónoma del Estado de México, Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO). Jesús Carranza esq. Paseo Tollocan, Colonia Universidad, Toluca, Estado de México, México, C.P. 50130
| | - Rogelio José Scougall-Vilchis
- Universidad Autónoma del Estado de México, Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO). Jesús Carranza esq. Paseo Tollocan, Colonia Universidad, Toluca, Estado de México, México, C.P. 50130
| | - Argelia Almaguer-Flores
- Universidad Nacional Autónoma de México, Facultad de Odontología, Laboratorio de Genética Molecular, Circuito Escolar s/n, Ciudad Universitaria, Delegación Coyoacán, Mexico
| | - Laura Emma Rodríguez-Vilchis
- Universidad Autónoma del Estado de México, Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO). Jesús Carranza esq. Paseo Tollocan, Colonia Universidad, Toluca, Estado de México, México, C.P. 50130
| | - Ulises Velazquez-Enriquez
- Universidad Autónoma del Estado de México, Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO). Jesús Carranza esq. Paseo Tollocan, Colonia Universidad, Toluca, Estado de México, México, C.P. 50130
| | - Jesús Ángel Arenas Alatorre
- Universidad Nacional Autónoma de México, Instituto de Física, Circuito Escolar s/n, Ciudad Universitaria, Delegación Coyoacán, Mexico
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Flores-Ferreyra BI, Scougall-Vilchis RJ, Velazquez-Enriquez U, Garcia-Contreras R, Aguillon-Sol L, Olea-Mejia OF. Effect of airborne-particle abrasion and, acid and alkaline treatments on shear bond strength of dental zirconia. Dent Mater J 2018; 38:182-188. [PMID: 30381637 DOI: 10.4012/dmj.2018-078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The surface roughness, morphology and shear bond strength (SBS) of dental zirconia using three different surface treatment techniques were evaluated. Three groups of sintered zirconia blocks were treated as follow, 1) Airborne-particle abrasion (APA) group (G1-APA), 50-µm Al2O3; 2) APA and 9% hydrofluoric acid etching (G2-HF); 3) APA and Sodium Hydroxide (G3-NaOH). The specimens were evaluated for roughness [atomic force microscope (AFM)], morphology [Scanning Electron Microscope (SEM)] and for SBS in the universal testing machine. The AFM revealed changes in the roughness after the surface treatments, however there was not Ra difference between groups, SEM analysis revealed changes in surface morphology for all surface treated specimens. For SBS, significant difference was found between G1-APA=8.4±2.7 MPa and G2-HF=3.3±0.6 MPa (p<0.05) and G2-HF and G3-NaOH=9.0±3.0 MPa (p<0.05). The main fracture mode was mixed failure (63%) for G1-APA and G3-NaOH groups. G2-HF showed 100% adhesive failure. SBS was improved with NaOH, however application of HF significantly decreased SBS.
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Affiliation(s)
- Blanca I Flores-Ferreyra
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Rogelio J Scougall-Vilchis
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Ulises Velazquez-Enriquez
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Rene Garcia-Contreras
- Interdisciplinary Research Laboratory Nanostructures and Biomaterials National School of Higher Education (ENES) Leon Unit, National Autonomous University of Mexico
| | - Lizzeth Aguillon-Sol
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Oscar F Olea-Mejia
- Research Center for Sustainable Chemistry Autonomus University of Mexico State
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Ceballos-Jiménez AY, Rodríguez-Vilchis LE, Contreras-Bulnes R, Alatorre JÁA, Velazquez-Enriquez U, García-Fabila MM. Acid resistance of dental enamel treated with remineralizing agents, Er:YAG laser and combined treatments. Dent Med Probl 2018; 55:255-259. [PMID: 30328302 DOI: 10.17219/dmp/93960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND It has been reported that lasers can increase resistance to enamel acids, and when it is associated with fluoride, both are reported to work in synergy, achieving a reduction of the solubility of enamel. Currently, other remineralizing agents have been shown to effectively inhibit enamel demineralization. OBJECTIVES The aim of the study was to evaluate acid resistance in the occlusal surface of permanent teeth, treated with remineralizing agents, erbium-doped yttrium aluminum garnet (Er:YAG) laser and combined treatments. MATERIAL AND METHODS Eighty samples of enamel were randomly assigned to 8 groups (n = 10): a control group, and groups treated with sodium fluoride (NaF), casein phosphopeptide-amorphous calcium phosphate with NaF (CPP-ACPF), hydroxyapatite-NaF-xylitol (HA-NaF-X), Er:YAG laser (L), L+NaF, L+CPP-ACPF, and L+HA-NaF-X. The samples were placed in an acid solution and the released calcium (Ca) was quantified by atomic absorption spectrometry. RESULTS In the groups treated with NaF and L+NaF, a lower loss of Ca was observed - 15.27 ±5.17 mg/L and 15.20 ±3.85 mg/L, respectively - compared to the control group, which had the highest Ca loss: 21.93 ±13.24 mg/L. CONCLUSIONS Although the combination of Er:YAG laser plus NaF and the single application of NaF showed values suggesting superior resistance to demineralization of dental enamel compared to all the other groups in the study, no statistically significant differences were found to support this assertion.
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Affiliation(s)
- Alma Y Ceballos-Jiménez
- Advanced Studies and Research Center, Faculty of Dentistry, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Laura E Rodríguez-Vilchis
- Advanced Studies and Research Center, Faculty of Dentistry, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Rosalía Contreras-Bulnes
- Advanced Studies and Research Center, Faculty of Dentistry, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Jesús Á Arenas Alatorre
- Department of Condensed Matter, Institute of Physics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Ulises Velazquez-Enriquez
- Advanced Studies and Research Center, Faculty of Dentistry, Autonomous University of the State of Mexico, Toluca, Mexico
| | - Maria M García-Fabila
- Instrumental Analysis Laboratory, Institute of Chemistry, Autonomous University of the State of Mexico, Toluca, Mexico
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Mézquita-Rodrigo I, Contreras-Bulnes R, Rodríguez-Vilchis L, Scougall-Vilchis R, Velazquez-Enriquez U, Centeno-Pedraza C. Shear bond strength of pit and fissure sealants on permanent teeth after several etching protocols: In vitro study. Dent Med Probl 2017. [DOI: 10.17219/dmp/75873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Velazquez-Enriquez U, Scougall-Vilchis RJ, Contreras-Bulnes R, Flores-Estrada J, Uematsu S, Yamaguchi R. Quantitative analysis of S. mutans and S. sobrinus cultivated independently and adhered to polished orthodontic composite resins. J Appl Oral Sci 2013; 20:544-9. [PMID: 23138741 PMCID: PMC3881799 DOI: 10.1590/s1678-77572012000500009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 07/02/2007] [Indexed: 11/22/2022] Open
Abstract
UNLABELLED In orthodontics, fixed appliances placed in the oral cavity are colonized by microorganisms. OBJECTIVE The purpose of this study was to quantitatively determine the independent bacterial colonization of S. mutans and S. sobrinus in orthodontic composite resins. MATERIAL AND METHODS Seven orthodontic composite adhesives for bonding brackets were selected and classified into 14 groups; (GIm, GIs) Enlight, (GIIm, GIIs) Grengloo, (GIIIm, GIIIs) Kurasper F, (GIVm, GIVs) BeautyOrtho Bond, (GVm, GVs) Transbond CC, (GVIm, GVIs) Turbo Bond II, (GVIIm, GVIIs) Blugloo. 60 blocks of 4x4x1 mm of each orthodontic composite resin were made (total 420 blocks), and gently polished with sand-paper and ultrasonically cleaned. S. mutans and S. sobrinus were independently cultivated. For the quantitative analysis, a radioactive marker was used to codify the bacteria (³H) adhered to the surface of the materials. The blocks were submerged in a solution with microorganisms previously radiolabeled and separated (210 blocks for S. mutans and 210 blocks for S. sobrinus) for 2 hours at 37 ºC. Next, the blocks were placed in a combustion system, to capture the residues and measure the radiation. The statistical analysis was calculated with the ANOVA test (Sheffè post-hoc). RESULTS Significant differences of bacterial adhesion were found amongst the groups. In the GIm and GIs the significant lowest scores for both microorganisms were shown; in contrast, the values of GVII for both bacteria were significantly the highest. CONCLUSIONS This study showed that the orthodontic composite resin evaluated in the GIm and GIs, obtained the lowest adherence of S. mutans and S. sobrinus, which may reduce the enamel demineralization and the risk of white spot lesion formation.
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Velazquez-Enriquez U, Scougall-Vilchis RJ, Contreras-Bulnes R, Flores-Estrada J, Uematsu S, Yamaguchi R. Adhesion of Streptococci to various orthodontic composite resins. Aust Dent J 2013; 58:101-5. [PMID: 23441799 DOI: 10.1111/adj.12027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2012] [Indexed: 12/01/2022]
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. METHODS Seven orthodontic composite resins were classified into seven groups: BeautyOrtho Bond (GI), Blugloo (GII), Enlight (GIII), Grengloo (GIV), Kurasper F (GV), Transbond CC (GVI) and Turbo Bond II (GVII). Thirty 4 x 4 x 1 mm blocks of each orthodontic composite resin were made (a total of 210 blocks). Both Streptococcus species were cultivated independently. For the quantitative analysis, radioactive markers were used to codify the bacteria ((3) H for Streptococcus mutans and (14) C for Streptococcus sobrinus). The blocks were submerged in a solution with microorganisms previously radiolabelled for 2 hours at 37 °C in constant movement. The blocks were placed in a combustion system to quantify the Streptococcus adhering to the surface of the materials by capturing the residues and measuring the radiation. RESULTS Significant differences in bacterial adhesion were found among the groups. The lowest significant scores for both microorganisms were observed in GIII. CONCLUSIONS The orthodontic composite resin evaluated in GIII exhibited the lowest adhesion of Streptococcus mutans and Streptococcus sobrinus, which may reduce enamel demineralization and the risk of white spot lesion formation.
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Affiliation(s)
- U Velazquez-Enriquez
- Health Sciences, School of Medicine, Autonomous University State of Mexico, Toluca City, Mexico
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