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Oliveira BP, Buzalaf MAR, Silva NC, Ventura TMO, Toniolo J, Rodrigues JA. Proteomic profile of the acquired enamel pellicle of children with early childhood caries and caries-free children. Eur J Oral Sci 2023:e12944. [PMID: 37414726 DOI: 10.1111/eos.12944] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 06/12/2023] [Indexed: 07/08/2023]
Abstract
Acquired enamel pellicle plays an important role in the pathogenesis of early childhood caries (ECC), working as a protective interface between the tooth and the oral cavity. The aim of this cross-sectional in vivo proteomic study was to compare the acquired enamel pellicle protein profile of 3-5-year-old children with ECC (n = 10) and caries-free children (n = 10). Acquired enamel pellicle samples were collected and processed for proteomic analysis (nLC-ESI-MS/MS). In total, 241 proteins were identified. Basic salivary proline-rich protein 1 and 2, Cystatin-B, and SA were found only in the caries free group. When comparing caries free and ECC groups, lower protein levels were found in the caries free group for hemoglobin subunit beta, delta, epsilon, gamma-2, globin domain-containing protein and gamma-1, neutrophil defensin 3, serum albumin, protein S100-A8, and S100-A9. The proteins histatin-1, statherin, salivary acidic proline-rich phosphoprotein ½, proline-rich protein 4, submaxillary gland androgen-regulated protein 3B, alpha-amylase 1 and 2B were found at higher levels in the caries free group. The exclusive and the proteins found at higher levels in the caries free group might have protective functions that play a role in the prevention of caries, besides providing important insights to be evaluated in future studies for the possible development of new therapeutic strategies for ECC.
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Affiliation(s)
- Bethania Paludo Oliveira
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Natália Caldeira Silva
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Júlia Toniolo
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jonas Almeida Rodrigues
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Oliveira BP, Buzalaf MAR, Silva NC, Ventura TMO, Toniolo J, Rodrigues JA. Saliva proteomic profile of early childhood caries and caries-free children. Acta Odontol Scand 2023; 81:216-226. [PMID: 36063428 DOI: 10.1080/00016357.2022.2118165] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
OBJECTIVE Saliva plays an important antimicrobial role and it is related to the pathogenesis of early childhood caries (ECC). The aim of this study was to compare the proteomic profile of unstimulated saliva of children aged 3-5 years who had ECC and caries-free (CF) children. MATERIALS AND METHODS After the saliva collection from 20 children (ECC: n = 10; CF: n = 10), the samples were processed for proteomic analysis on a mass spectrometer. RESULTS 1638 proteins were identified, of which 355 were present in both groups. A total of 579 proteins were exclusively identified in the CF group and included Leucine-rich alpha-2-glycoprotein, Protein S100-A5, Protein S100-A8 and Mucin-2. Moreover, 704 proteins were exclusively identified in the ECC group, including Enamelin. The differential expression analysis revealed that 112 proteins were up-regulated in the CF group. Among these proteins, we highlighted Hemoglobin subunit gamma-1 (343-fold increase), gamma-2 (336-fold increase) and alpha (40-fold increase). CONCLUSIONS The proteomic profile of the saliva varied substantially between the groups. Hemoglobin subunit gamma-1, gamma-2 and alpha may play a protective role in children with ECC. These proteins should be evaluated in future studies, because they may be possible good candidates to be included in anti-caries dental products.
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Affiliation(s)
- Bethania Paludo Oliveira
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Natália Caldeira Silva
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Júlia Toniolo
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Jonas Almeida Rodrigues
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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Martins JCLGD, Oliveira BP, Duarte DA, Antonino ACD, Aguiar CM, Câmara AC. Micro-computed tomographic assessment of dentinal microcrack formation in straight and curved root canals in extracted teeth prepared with hand, rotary and reciprocating instruments. Int Endod J 2021; 54:1362-1368. [PMID: 33760261 DOI: 10.1111/iej.13521] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 12/15/2022]
Abstract
AIM To compare microcrack formation in roots of extracted teeth after the shaping of straight and curved root canals with hand, rotary and reciprocating files using micro-computed tomographic (micro-CT) analysis. METHODOLOGY Thirty straight mandibular incisors and 30 severely curved mesial roots of mandibular molars were randomly divided into 6 experimental groups (n = 10) according to the systems used for the root canal preparation and the root canal curvature: ProTaper Universal for Hand Use (Dentsply Sirona, Ballaigues, Switzerland), HyFlex EDM (Coltene-Whaledent, Altstätten, Switzerland) and Reciproc Blue (VDW, Munich, Germany) files used in mandibular incisors (straight canals) and mesial roots of mandibular molars (curved canals). The roots were imaged with micro-CT scanning at an isotropic resolution of 14 μm before and after root canal preparation, and the cross-sectional images generated were assessed to detect microcracks. RESULTS All dentinal defects identified after root canal preparation were already present before instrumentation, and no new microcracks were detected. Dentinal microcracks were present in 19% (ProTaper Universal for Hand Use), 11% (Hyflex EDM) and 23% (Reciproc Blue) of the cross-sections when the instrumentation was performed in mandibular incisors. Instrumentation of mandibular molars revealed microcracks in 15% (ProTaper Universal for Hand Use), 16% (Hyflex EDM) and 17% (Reciproc Blue) of the cross-sections. CONCLUSIONS Preparation of straight and curved root canals with ProTaper Universal for Hand Use, HyFlex EDM and Reciproc Blue systems did not produce microcracks in extracted teeth when evaluated with micro-CT.
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Affiliation(s)
- J C L G D Martins
- Department of Prosthodontics and Oral and Maxillofacial Surgery, Dental School, Recife, PE, Brazil
| | - B P Oliveira
- Department of Prosthodontics and Oral and Maxillofacial Surgery, Dental School, Recife, PE, Brazil
| | - D A Duarte
- Department of Nuclear Energy, Federal University of Pernambuco, Recife, PE, Brazil
| | - A C D Antonino
- Department of Nuclear Energy, Federal University of Pernambuco, Recife, PE, Brazil
| | - C M Aguiar
- Department of Prosthodontics and Oral and Maxillofacial Surgery, Dental School, Recife, PE, Brazil
| | - A C Câmara
- Department of Prosthodontics and Oral and Maxillofacial Surgery, Dental School, Recife, PE, Brazil
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Silva NC, Ventura TMO, Oliveira BP, Dos Santos NM, Pelá VT, Buzalaf MAR, Rodrigues JA. Proteomic profile of the acquired enamel pellicle of professional wine tasters with erosive tooth wear. Eur J Oral Sci 2021; 129:e12779. [PMID: 33786928 DOI: 10.1111/eos.12779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/15/2020] [Revised: 01/13/2021] [Accepted: 02/03/2021] [Indexed: 12/22/2022]
Abstract
The aim of this study was to compare the acquired enamel pellicle protein profile of professional wine tasters with mild and moderate erosive tooth wear. Twelve professional wine tasters participated (3 from a low tooth wear group; 9 from a high tooth wear group). Acquired enamel pellicle samples were collected and processed for proteomic analysis (nLC-ESI-MS/MS). The acquired enamel pellicle proteomic profile was different between the groups. The proteins found exclusively in the low tooth wear group were histatins 1 and 3 and mucins 7 and 21. When comparing the wear groups, proteins with higher levels in the low tooth wear group included neutrophil defensins (1 and 3), lysozyme C, lysozyme, myeloperoxidase, and squalene monooxygenase. In conclusion, the findings indicate that the proteins found at higher levels in the low tooth wear group and proteins exclusively found in the low tooth wear group might be protective and, therefore, could be good candidates for further studies regarding their potential to be added to dental products to protect professional wine tasters from extrinsic erosive tooth wear.
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Affiliation(s)
- Natália Caldeira Silva
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
| | | | - Bethania Paludo Oliveira
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
| | - Nicole Marchioro Dos Santos
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
| | - Vinícius Taioqui Pelá
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - Jonas Almeida Rodrigues
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Rio Grande do Sul, Brazil
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Wilde S, Sarti CS, Toniolo J, Oliveira BP, Gouvea DB, Santos NMD, Borges MLV, Rodrigues JA. Influence of Isolation Technique on the Survival of Resin-Modified Glass-Ionomer Restorations in Primary Molars: A 9-Months Randomized Controlled Trial. Pesqui Bras Odontopediatria Clín Integr 2021. [DOI: 10.1590/pboci.2021.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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