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Levy FM, Câmara JVF, Ventura TMO, Pelá VT, Iano F, Araujo TT, Carvalho TDS, Pavan NM, Ximenes VF, Buzalaf MAR. In vivo modification of the enamel pellicle and saliva resveratrol levels after use of resveratrol-containing orodispersible capsules. Arch Oral Biol 2024; 165:106016. [PMID: 38838515 DOI: 10.1016/j.archoralbio.2024.106016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/06/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
OBJECTIVES To evaluate in vivo 1) the bioavailability of trans-resveratrol when administered through sublingual capsules; 2) the effect of resveratrol on the protein composition of the acquired enamel pellicle (AEP). DESIGN Ten volunteers received a sublingual capsule containing 50 mg of trans-resveratrol. Unstimulated saliva was then collected after 0, 30, 60, and 120 min and AEP was collected after 120 min following administration of the capsule. In the next week, the volunteers received a placebo sublingual capsule, and saliva and AEP were collected again. Saliva samples were analyzed for free trans-resveratrol using high-performance liquid chromatopgraphy (HPLC), and AEP samples were subjected to proteomic analysis (nLC-ESI-MS/MS). RESULTS Trans-resveratrol was detected in saliva at all the time points evaluated, with the peak at 30 min. A total of 242 proteins were identified in both groups. Ninety-six proteins were increased and 23 proteins were decreased in the Resveratrol group. Among the up-regulated proteins, isoforms of cystatins, PRPs, Mucin-7, Histatin-1, Lactotrasnferrin and Lysozyme-C were increased and the isoforms of Protein S100, Neutrophil defensins, Albumin, PRPs, and, Statherin were decreased in Resveratrol group. CONCLUSION The sublingual capsule is effective at increasing the bioavailability of trans-resveratrol in saliva. Several proteins involved in important processes to maintain systemic and oral health homeostasis were identified. These proteins differently expressed due to the presence of trans-resveratrol deserve attention for future studies, since they have important functions, mainly related to antimicrobial action.
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Affiliation(s)
- Flávia Mauad Levy
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - João Victor Frazão Câmara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | | | - Vinícius Taioqui Pelá
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Flávia Iano
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - Tamara Teodoro Araujo
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Thamyris de Souza Carvalho
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Nathalia Mariana Pavan
- Department of Chemistry, School of Sciences, São Paulo State University, Bauru, SP, Brazil
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de Souza BM, Braga AS, Vertuan M, Sassaki S, Araújo TT, Santos PSDS, Buzalaf MAR, Magalhães AC. Influence of irradiated dentin, biofilm and different artificial saliva formulations on root dentin demineralization. Heliyon 2024; 10:e36334. [PMID: 39247326 PMCID: PMC11378960 DOI: 10.1016/j.heliyon.2024.e36334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 08/12/2024] [Accepted: 08/13/2024] [Indexed: 09/10/2024] Open
Abstract
The aim of this study was evaluated the influence of radiation as well as of new formulations of artificial saliva on the development of root dentin lesions. Bovine root samples were divided into: irradiated (70 Gy) dentin or not; the type of biofilm (from irradiated patient-experimental or non-irradiated patient-control) and the type of artificial saliva (for the condition irradiated dentin/biofilm from irradiated patient): Control Artificial Saliva (inorganic); Control Saliva + 1 mg/ml hemoglobin; Control Saliva +0.1 mg/ml cystatin; Control Saliva + hemoglobin + cystatin; Bioextra (positive control) and deionized water (DiW, negative control) (n = 12/group). Biofilm was produced using human biofilm and McBain saliva (0.2 % of sucrose, 37o C and 5 % CO2); the treatments were done 1x/day, for 5 days. Colony-forming units (CFU) counting was performed; demineralization was quantified by transversal microradiography. Two-way ANOVA/Bonferroni or Sidak test for the comparison between biofilm x dentin and ANOVA/Tukey or Kruskal-Wallis/Dunn for comparing artificial saliva were done (p < 0.05). The type of biofilm had no influence on CFU and demineralization. Sound dentin under control biofilm presented the lowest Lactobacillus ssp. and Streptococcus mutans CFU and the lowest mean mineral loss (R) (25.6 ± 2.2; 23.7 ± 2.9 %) compared to irradiated dentin (26.1 ± 2.8; 28.1 ± 3.3, p < 0.004) for both types of biofilms (experimental and control, respectively). Bioextra was the only artificial saliva that reduced R (10.8 ± 2.5 %) and Lesion Depth (LD) (35 ± 15 μm) compared to DiW (17.3 ± 3.3 %, 81 ± 18 μm, p < 0.0001). Irradiation has impact on caries development; the experimental saliva were unable to reduce its occurrence.
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Affiliation(s)
- Beatriz Martines de Souza
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Aline Silva Braga
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Mariele Vertuan
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Susan Sassaki
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Tamara Teodoro Araújo
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | - Paulo Sergio da Silva Santos
- Department of Surgery, Stomatology, Pathology and Radiology, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Ana Carolina Magalhães
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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Reis FN, Câmara JVF, Dionizio A, Araujo TT, Gomes da Silva ND, Levy FM, Ximenes VF, Buzalaf MAR. Increase in plasma resveratrol levels and in acid-resistant proteins in the acquired enamel pellicle after use of resveratrol-containing orodispersible tablets. J Dent 2024; 143:104876. [PMID: 38367826 DOI: 10.1016/j.jdent.2024.104876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/19/2024] Open
Abstract
OBJECTIVE This study evaluated the effect of administration of trans-resveratrol-containing orodispersible tablets on the protein composition of the AEP and on blood plasma trans-resveratrol concentrations. METHODS Ten volunteers participated in two crossover double-blind phases. In each phase, after dental prophylaxis, they received a trans-resveratrol (15 mg) orodispersible tablet, or a placebo tablet (without actives). The AEP formed after 120 min was collected with electrode filter papers soaked in 3 % citric acid. Blood samples were collected 30, 45, 60 and 120 min after the use of the tablet. After protein extraction, AEP samples were analyzed by shotgun labelfree quantitative proteomics and plasma samples were analyzed by high-performance liquid chromatography (HPLC). RESULTS Eight hundred and two proteins were identified in the AEP. Among them, 336 and 213 were unique to the trans-resveratrol and control groups, respectively, while 253 were common to both groups. Proteins with important functions in the AEP had increased expression in the trans-resveratroltreated group, such as neutrophil defensins, S100 protein isoforms, lysozyme C, cystatin-D, mucin-7, alphaamylase, albumin, haptoglobin and statherin. Trans-resveratrol was detected in the plasma at all the times evaluated, with the peak at 30 min. CONCLUSIONS The administration of trans-resveratrol in sublingual orodispersible tablets was effective both to increase the bioavailability of the polyphenol and the expression of antibacterial and acid-resistant proteins in the AEP, which might benefit oral and general health.
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Affiliation(s)
- Fernanda Navas Reis
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - João Victor Frazão Câmara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Aline Dionizio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Tamara Teodoro Araujo
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | | | - Flávia Mauad Levy
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
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Reis FN, Pelá VT, Câmara JVF, Ventura TMO, Rodrigues CMVBF, Lima KPD, Buzalaf MAR. A new role for resveratrol: Protection of enamel against erosion. J Dent 2024; 141:104810. [PMID: 38110112 DOI: 10.1016/j.jdent.2023.104810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/03/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023] Open
Abstract
OBJECTIVE The aim of this study was to determine the effect of different concentrations of resveratrol in protecting enamel against initial dental erosion in vitro. METHODS Ninety bovine enamel samples (4 × 4 mm) were divided into six groups: Phosphate buffered saline (negative control; PBS), Commercial solution (Elmex Erosion Protection™; positive control) and resveratrol at 4 different concentrations (1, 10, 100 or 400 µg/mL). Initially, the samples were incubated in saliva for the formation of the acquired pellicle (250 µL, 1 h, 37 °C, 250 rpm). Afterward, the samples were incubated in the respective treatments (250 µL, 1 min, 37 °C, 250 rpm) and then reincubated in saliva (250 µL, 1 h, 37 °C, 250 rpm). Finally, the samples were subjected to an erosive challenge by incubating in 1 % citric acid (1 mL, pH 3.5, 1 min, 25 °C, 250 rpm). The percentage surface microhardness change (% SMC) was assessed using a microhardness tester. Data were analyzed by Kruskal-Wallis and Dunn's tests (p < 0.05). RESULTS The treatments with Elmex™ and resveratrol (1, 10 and 100 µg/mL) significantly protected enamel compared to the negative control, without significant differences among them. However, the group treated with the highest resveratrol concentration (400 µg/mL) did not show a significant difference from the negative control. CONCLUSIONS Resveratrol at concentrations ranging from 1 to 100 µg/ml was effective in preventing loss of enamel surface microhardness. CLINICAL SIGNIFICANCE This result suggests a potential new direction for the development of dental products based on resveratrol for the prevention of dental erosion.
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Affiliation(s)
- Fernanda Navas Reis
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil
| | - Vinicius Taioqui Pelá
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil
| | - João Victor Frazão Câmara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil
| | - Talita Mendes Oliveira Ventura
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil
| | | | - Karen Pavan de Lima
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil.
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Martini T, Câmara JVF, Dionizio A, Ventura TMO, Cassiano LDPS, de Souza E Silva CM, Taira EA, Araujo TT, Santos LA, Ferrari CR, Magalhães AC, Carvalho TS, Baumann T, Lussi A, Rios D, de Oliveira RB, Palma-Dibb RG, Buzalaf MAR. Proteomic analysis of stimulated saliva in gastroesophageal reflux disease patients with and without erosive tooth wear: Observational study. J Dent 2023; 139:104724. [PMID: 37797812 DOI: 10.1016/j.jdent.2023.104724] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023] Open
Abstract
OBJECTIVE To evaluate the difference in the proteomic profile of stimulated saliva in patients with gastroesophageal reflux disease (GERD) with (GE) and without (GNE) erosive tooth wear (ETW), regarding both human and bacterial proteins. METHODS Stimulated saliva (SS) was collected from 16 patients (8/group). Samples were centrifuged at 4.500 g for 15 min under refrigeration to remove all debris. The supernatant from each saliva sample was taken and frozen at -80 °C. After extracting the proteins, they were submitted to reverse phase liquid chromatography and mass spectrometry (nLC-ESI-MS/MS). Label-free proteomic quantification was performed using Protein Lynx Global Service (PLGS) software (p < 0.05) for human and bacterial proteins. RESULTS In total, 67 human proteins were common for GNE and GE groups. GNE group presented, compared to GE group, increase in proteins that confer antimicrobial and acid resistant properties, such as cystatins, histatin and immunoglobulins. However, GNE group had a marked decrease in subunits of hemoglobin (α, β and delta). Regarding bacterial proteins, for SS, 7 and 10 unique proteins were identified in the GE and GNE groups, respectively. They are related to protein synthesis and energy metabolism and interact with human proteins typically found in saliva and supramolecular complexes of the acquired pellicle. CONCLUSIONS Our data indicate that the stimulation of the salivary flow increases acid resistant and antimicrobial proteins in saliva, which might protect against ETW. CLINICAL SIGNIFICANCE This pioneer study showed important differences in the human and bacterial proteome of SS in patients with GERD with or without ETW.
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Affiliation(s)
- Tatiana Martini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil.
| | - João Victor Frazão Câmara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Aline Dionizio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Talita Mendes Oliveira Ventura
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Luiza de Paula Silva Cassiano
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Cíntia Maria de Souza E Silva
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Even Akemi Taira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Tamara Teodoro Araujo
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Lethycia Almeida Santos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Carolina Ruis Ferrari
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Ana Carolina Magalhães
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Thiago Saads Carvalho
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Hochschulstrasse 6, Bern 3012, Switzerland
| | - Tommy Baumann
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Hochschulstrasse 6, Bern 3012, Switzerland
| | - Adrian Lussi
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Hochschulstrasse 6, Bern 3012, Switzerland
| | - Daniela Rios
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
| | - Ricardo Brandt de Oliveira
- Ribeirão Preto School of Medicine, University of São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP 14049-900, Brazil
| | - Regina Guenka Palma-Dibb
- Ribeirão Preto School of Dentistry, University of São Paulo, Av. do Café - Subsetor Oeste - 11 (N-11), Ribeirão Preto, SP 14040-904, Brazil
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Alameda Dr. Octávio Pinheiro Brisolla, 9-75 - Vila Regina, Bauru, SP 17011-220, Brazil
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6
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Martini T, Rios D, Dionizio A, Cassiano LDPS, Silva CMDSE, Taira EA, Ventura TMO, Câmara JVF, Araujo TT, Magalhães AC, Carvalho TS, Baumann T, Lussi A, Oliveira RBD, Palma-Dibb RG, Buzalaf MAR. Acquired enamel pellicle protects gastroesophageal reflux disease patients against erosive tooth wear. Braz Oral Res 2023; 37:e085. [PMID: 37729290 DOI: 10.1590/1807-3107bor-2023.vol37.0085] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/20/2022] [Indexed: 09/22/2023] Open
Abstract
The objective of this study was to compare the protein profile of the acquired enamel pellicle (AEP) formed in vivo in patients with or without gastroesophageal reflux disease (GERD), and with or without erosive tooth wear (ETW). Twenty-four volunteers were divided into 3 groups: 1) GERD and ETW; 2) GERD without ETW; and 3) control (without GERD). The AEP formed 120 min after prophylaxis was collected from the lingual/palatal surfaces. The samples were subjected to mass spectrometry (nLC-ESI-MS/MS) and label-free quantification by Protein Lynx Global Service software. A total of 213 proteins were identified, or 119, 92 and 106 from each group, respectively. Group 2 showed a high number of phosphorylated and calcium-binding proteins. Twenty-three proteins were found in all the groups, including 14-3-3 protein zeta/delta and 1-phosphatidylinositol. Several intracellular proteins that join saliva after the exfoliation of oral mucosa cells might have the potential to bind hydroxyapatite, or participate in forming supramolecular aggregates that bind to precursor proteins in the AEP. Proteins might play a central role in protecting the dental surface against acid dissolution.
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Affiliation(s)
- Tatiana Martini
- Universidade de São Paulo - USP, Bauru School of Dentistry, Bauru, SP, Brazil
| | - Daniela Rios
- Universidade de São Paulo - USP, Bauru School of Dentistry, Bauru, SP, Brazil
| | - Aline Dionizio
- Universidade de São Paulo - USP, Bauru School of Dentistry, Bauru, SP, Brazil
| | | | | | - Even Akemi Taira
- Universidade de São Paulo - USP, Bauru School of Dentistry, Bauru, SP, Brazil
| | | | | | | | | | - Thiago Saads Carvalho
- University of Bern, Department of Preventive, Restorative and Pediatric Dentistry, Bern, Switzerland
| | - Tommy Baumann
- University of Bern, Department of Preventive, Restorative and Pediatric Dentistry, Bern, Switzerland
| | - Adrian Lussi
- University of Bern, Department of Preventive, Restorative and Pediatric Dentistry, Bern, Switzerland
| | - Ricardo Brandt de Oliveira
- Universidade de São Paulo - USP, Ribeirão Preto School of Medicine, Department of General Medicine, Ribeirão Preto, SP, Brazil
| | - Regina Guenka Palma-Dibb
- Universidade de São Paulo - USP, Ribeirão Preto School of Medicine, Department of Restorative Dentistry, Ribeirão Preto, SP, Brazil
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Barbosa IF, Frazão Câmara JV, Pierote JJA, Menezes LR, de Freitas PF, Santos LA, Martini T, Paulillo LAMS, Aguiar FHB. The in vitro effect of solutions with or without sugar in dental bleaching. J Mech Behav Biomed Mater 2023; 142:105821. [PMID: 37054575 DOI: 10.1016/j.jmbbm.2023.105821] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 04/03/2023]
Abstract
The interaction of bleaching technique (in-office or at-home) and solutions (deionized distilled water with and without sugar, red wine with and without sugar, coffee with and without sugar) on the effectiveness of in vitro dental bleaching was evaluated. Hydrogen peroxide (HP) 37.5% gel was used for in-office bleaching, 3 applications of 8 min each, 3 sessions with an interval of 7 days. At-home bleaching was performed with 10% Carbamide peroxide (CP), 2 h/day, for 30 days. The enamel vestibular surfaces (n = 72) were subjected daily to test solutions for 45 min, washed with distilled water for 5 min and stored in artificial saliva. The enamel color analysis was performed with a spectrophotometer through color variation (ΔE) and luminosity variation (ΔL). Roughness analysis was performed by atomic force microscopy (AFM) and scanning electron microscopy (SEM). Enamel composition was determined by energy dispersive X-ray spectrometry (EDS). The results were submitted to one-way analysis of variance (ANOVA) for ΔE, ΔL and EDS and two-way for AFM. For ΔE and ΔL there was no statistically significant difference. An increase in roughness was observed on the surface when exposed to a sugar-water solution for at-home bleaching and a lower concentration of Ca and P in the deionized water solution with sugar. Solutions containing or not sugar did not influence the bleaching potential, however the presence of sugar in the water solution increased the surface roughness with CP.
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Reis FN, Francese MM, Silva NDGD, Pelá VT, Câmara JVF, Trevizol JS, Pieretti JC, Seabra AB, Pessan JP, Honório HM, Crusca E, Marchetto R, Buzalaf MAR. Gels containing statherin-derived peptide protect against enamel and dentin erosive tooth wear in vitro. J Mech Behav Biomed Mater 2023; 137:105549. [PMID: 36356421 DOI: 10.1016/j.jmbbm.2022.105549] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/23/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
Abstract
The effect of gels containing a statherin-derived peptide (Stn) on the protection against enamel and dentin erosive tooth wear (ETW) in vitro was evaluated. Bovine enamel and dentin specimens were divided into 2 groups (n = 15 and 18/group for enamel and dentin, respectively) that were treated with Chitosan or Carboxymethylcellulose (CMC) gels containing Stn15pSpS at 1.88 × 10-5 M or 3.76 × 10-5 M. Chitosan or CMC gels without active ingredients served as negative controls, while chitosan gel containing 1.23% F (as NaF) and acidulated phosphate fluoride gel (1.23% F) served as positive controls. The gels were applied on the specimens for 4 min. Stimulated saliva was collected from 3 donors and used to form a 2-h acquired pellicle on the specimens. Then, the specimens were submitted to an erosive pH cycling protocol 4 times/day for 7 days (0.01 M HCl pH 2.0/45 s, artificial saliva/2 h, and artificial saliva overnight). The gels were applied again during pH cycling, 2 times/day for 4 min after the first and last erosive challenges. Enamel and dentin loss (μm) were assessed by contact profilometry. Scanning electron microscopy (SEM) was analyzed using a cold field emission. Data were analyzed by two-way ANOVA (for chitosan and CMC gels, separately) and Tukey's multiple comparison test. SEM images showed changes to enamel topography after application oft the gels containing Stn or F. Regarding CMC-based gels, for enamel, none of the treatments significantly reduced ETW in comparison with placebo; for dentin, however, gels containing Stn, regardless the concentration, significantly reduced the ETW. Moreover, Chitosan-based gels, regardless the Stn concentration, were able to protect enamel and dentin against ETW. Gels containing Stn might be a new approach to protect against ETW.
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Affiliation(s)
- Fabiana Navas Reis
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
| | - Monique Malta Francese
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
| | | | - Vinicius Taioqui Pelá
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
| | - João Victor Frazão Câmara
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
| | - Juliana Sanches Trevizol
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
| | | | - Amedea Barozzi Seabra
- Center for Natural and Human Sciences, Federal University of ABC, Santo André, Brazil.
| | - Juliano Pelim Pessan
- Department of Pediatric Dentistry and Public Health, Araçatuba Dental School, São Paulo State University UNESP, Araçatuba, SP, Brazil.
| | - Heitor Marques Honório
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
| | - Edson Crusca
- Chemistry Institute, Paulista State University, Araraquara, Brazil.
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Garcia MT, Ward RADC, Gonçalves NMF, Pedroso LLC, Neto JVDS, Strixino JF, Junqueira JC. Susceptibility of Dental Caries Microcosm Biofilms to Photodynamic Therapy Mediated by Fotoenticine. Pharmaceutics 2021; 13:pharmaceutics13111907. [PMID: 34834321 PMCID: PMC8619263 DOI: 10.3390/pharmaceutics13111907] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 01/20/2023] Open
Abstract
Photodynamic therapy (PDT) mediated by Fotoenticine® (FTC), a new photosensitizer derived from chlorin e-6, has shown in vitro inhibitory activity against the cariogenic bacterium Streptococcus mutans. However, its antimicrobial effects must be investigated on biofilm models that represent the microbial complexity of caries. Thus, we evaluated the efficacy of FTC-mediated PDT on microcosm biofilms of dental caries. Decayed dentin samples were collected from different patients to form in vitro biofilms. Biofilms were treated with FTC associated with LED irradiation and analyzed by counting the colony forming units (log10 CFU) in selective and non-selective culture media. Furthermore, the biofilm structure and acid production by microorganisms were analyzed using microscopic and spectrophotometric analysis, respectively. The biofilms from different patients showed variations in microbial composition, being formed by streptococci, lactobacilli and yeasts. Altogether, PDT decreased up to 3.7 log10 CFU of total microorganisms, 2.8 log10 CFU of streptococci, 3.2 log10 CFU of lactobacilli and 3.2 log10 CFU of yeasts, and reached eradication of mutans streptococci. PDT was also capable of disaggregating the biofilms and reducing acid concentration in 1.1 to 1.9 mmol lactate/L. It was concluded that FTC was effective in PDT against the heterogeneous biofilms of dental caries.
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Affiliation(s)
- Maíra Terra Garcia
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology/ICT, São Paulo State University/UNESP, São José dos Campos 12245-000, Brazil; (M.T.G.); (R.A.d.C.W.); (N.M.F.G.); (L.L.C.P.)
| | - Rafael Araújo da Costa Ward
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology/ICT, São Paulo State University/UNESP, São José dos Campos 12245-000, Brazil; (M.T.G.); (R.A.d.C.W.); (N.M.F.G.); (L.L.C.P.)
| | - Nathália Maria Ferreira Gonçalves
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology/ICT, São Paulo State University/UNESP, São José dos Campos 12245-000, Brazil; (M.T.G.); (R.A.d.C.W.); (N.M.F.G.); (L.L.C.P.)
| | - Lara Luise Castro Pedroso
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology/ICT, São Paulo State University/UNESP, São José dos Campos 12245-000, Brazil; (M.T.G.); (R.A.d.C.W.); (N.M.F.G.); (L.L.C.P.)
| | - José Vieira da Silva Neto
- Associate Laboratory of Sensors and Materials/LABAS, National Institute for Space Research, São José dos Campos 12227-010, Brazil;
| | - Juliana Ferreira Strixino
- Photobiology Applied to Health, Research and Development Institute IP&D, University of Vale do Paraiba/UNIVAP, São José dos Campos 12244-390, Brazil;
| | - Juliana Campos Junqueira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology/ICT, São Paulo State University/UNESP, São José dos Campos 12245-000, Brazil; (M.T.G.); (R.A.d.C.W.); (N.M.F.G.); (L.L.C.P.)
- Correspondence:
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