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Reise M, Kranz S, Heyder M, Beck J, Roth C, Guellmar A, von Eggeling F, Schubert U, Löffler B, Sigusch B. Salivary Pellicle Formed on Dental Composites Evaluated by Mass Spectrometry-An In Situ Study. Molecules 2023; 28:6804. [PMID: 37836647 PMCID: PMC10574692 DOI: 10.3390/molecules28196804] [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: 07/28/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
(1) Background: In the oral environment, sound enamel and dental restorative materials are immediately covered by a pellicle layer, which enables bacteria to attach. For the development of new materials with repellent surface functions, information on the formation and maturation of salivary pellicles is crucial. Therefore, the present in situ study aimed to investigate the proteomic profile of salivary pellicles formed on different dental composites. (2) Methods: Light-cured composite and bovine enamel samples (controls) were exposed to the oral cavity for 30, 90, and 120 min. All samples were subjected to optical and mechanical profilometry, as well as SEM surface evaluation. Acquired pellicles and unstimulated whole saliva samples were analyzed by SELDI-TOF-MS. The significance was determined by the generalized estimation equation and the post-hoc bonferroni adjustment. (3) Results: SEM revealed the formation of homogeneous pellicles on all test and control surfaces. Profilometry showed that composite surfaces tend to be of higher roughness compared to enamel. SELDI-TOF-MS detected up to 102 different proteins in the saliva samples and up to 46 proteins in the pellicle. Significant differences among 14 pellicle proteins were found between the composite materials and the controls. (4) Conclusions: Pellicle formation was material- and time-dependent. Proteins differed among the composites and to the control.
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Affiliation(s)
- Markus Reise
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Stefan Kranz
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Markus Heyder
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Julius Beck
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Christian Roth
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - André Guellmar
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
| | - Ferdinand von Eggeling
- Department of Otorhinolaryngology, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany;
| | - Ulrich Schubert
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany;
| | - Bettina Löffler
- Institute of Medical Microbiology, Jena University Hospital, Friedrich-Schiller University, Erlanger Allee 101, 07747 Jena, Germany;
| | - Bernd Sigusch
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany; (M.R.); (M.H.); (J.B.); (A.G.); (B.S.)
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Trautmann S, Künzel N, Fecher‐Trost C, Barghash A, Dudek J, Flockerzi V, Helms V, Hannig M. Is the proteomic composition of the salivary pellicle dependent on the substrate material? Proteomics Clin Appl 2022; 16:e2100109. [DOI: 10.1002/prca.202100109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Simone Trautmann
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry University Hospital Saarland University Homburg Germany
| | - Nicolas Künzel
- Center for Bioinformatics Saarland Informatics Campus Saarland University Saarbruecken Germany
| | - Claudia Fecher‐Trost
- Department of Experimental and Clinical Pharmacology and Toxicology PZMS Saarland University Homburg Germany
| | - Ahmad Barghash
- Center for Bioinformatics Saarland Informatics Campus Saarland University Saarbruecken Germany
- Department of Computer Science German Jordanian University Amman Jordan
| | - Johanna Dudek
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry University Hospital Saarland University Homburg Germany
| | - Veit Flockerzi
- Department of Experimental and Clinical Pharmacology and Toxicology PZMS Saarland University Homburg Germany
| | - Volkhard Helms
- Center for Bioinformatics Saarland Informatics Campus Saarland University Saarbruecken Germany
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry University Hospital Saarland University Homburg Germany
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Helbig R, Hannig M, Basche S, Ortgies J, Killge S, Hannig C, Sterzenbach T. Bioadhesion on Textured Interfaces in the Human Oral Cavity-An In Situ Study. Int J Mol Sci 2022; 23:ijms23031157. [PMID: 35163081 PMCID: PMC8835155 DOI: 10.3390/ijms23031157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/19/2022] [Accepted: 01/19/2022] [Indexed: 02/04/2023] Open
Abstract
Extensive biofilm formation on materials used in restorative dentistry is a common reason for their failure and the development of oral diseases like peri-implantitis or secondary caries. Therefore, novel materials and strategies that result in reduced biofouling capacities are urgently sought. Previous research suggests that surface structures in the range of bacterial cell sizes seem to be a promising approach to modulate bacterial adhesion and biofilm formation. Here we investigated bioadhesion within the oral cavity on a low surface energy material (perfluorpolyether) with different texture types (line-, hole-, pillar-like), feature sizes in a range from 0.7–4.5 µm and graded distances (0.7–130.5 µm). As a model system, the materials were fixed on splints and exposed to the oral cavity. We analyzed the enzymatic activity of amylase and lysozyme, pellicle formation, and bacterial colonization after 8 h intraoral exposure. In opposite to in vitro experiments, these in situ experiments revealed no clear signs of altered bacterial surface colonization regarding structure dimensions and texture types compared to unstructured substrates or natural enamel. In part, there seemed to be a decreasing trend of adherent cells with increasing periodicities and structure sizes, but this pattern was weak and irregular. Pellicle formation took place on all substrates in an unaltered manner. However, pellicle formation was most pronounced within recessed areas thereby partially masking the three-dimensional character of the surfaces. As the natural pellicle layer is obviously the most dominant prerequisite for bacterial adhesion, colonization in the oral environment cannot be easily controlled by structural means.
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Affiliation(s)
- Ralf Helbig
- Max Bergmann Center of Biomaterials, Leibniz-Institut für Polymerforschung, Hohe Straße 6, 01069 Dresden, Germany;
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, 66421 Homburg, Germany; (M.H.); (J.O.)
| | - Sabine Basche
- Clinic of Operative and Pediatric Density, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (S.B.); (C.H.)
| | - Janis Ortgies
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, 66421 Homburg, Germany; (M.H.); (J.O.)
| | - Sebastian Killge
- Institute of Semiconductor and Microsystems, Chair of Nanoelectronics, Technische Universität Dresden, 01609 Dresden, Germany;
| | - Christian Hannig
- Clinic of Operative and Pediatric Density, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (S.B.); (C.H.)
| | - Torsten Sterzenbach
- Clinic of Operative and Pediatric Density, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (S.B.); (C.H.)
- Correspondence: ; Tel.: +49-351-458-2250
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Hertel S, Hannig M, Hannig C, Sterzenbach T. Mucins 5b and 7 and secretory IgA in the oral acquired pellicle of children with caries and caries-free children. Arch Oral Biol 2021; 134:105314. [PMID: 34861462 DOI: 10.1016/j.archoralbio.2021.105314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The objective of this study was to determine whether differences in the abundance of mucins 5b and 7 as well as secretory IgA exist in the oral acquired pellicle between children with active caries and caries-free children. DESIGN Pellicle formation was performed for 10 min in-situ on ceramic slabs in the oral cavity of children (5-7 years of age) with caries (n = 15) and without signs of caries (n = 13). Furthermore, unstimulated saliva was collected. Concentrations of Muc5b, Muc7 and sIgA were measured in desorbed pellicle eluates and in saliva. RESULTS Significantly larger concentrations of Muc5b, Muc7 and sIgA were detected in the pellicle obtained from children with caries compared to caries-free children. However, in the salivary samples concentrations of mucins Muc5b and Muc7 as well as sIgA did not differ significantly between the two groups. CONCLUSIONS All three pellicle components Muc5b, Muc7 as well as sIgA could be identified as potential biomarkers for early childhood caries with high sensitivity and specificity. This could contribute to a better understanding of the different caries susceptibility in children.
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Affiliation(s)
- Susann Hertel
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany.
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Faculty of Medicine, Saarland University, Kirrberger Straße, 66421 Homburg, Saar, Germany
| | - Christian Hannig
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany
| | - Torsten Sterzenbach
- Clinic of Operative Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany
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Zhang F, Cheng Z, Ding C, Li J. Functional biomedical materials derived from proteins in the acquired salivary pellicle. J Mater Chem B 2021; 9:6507-6520. [PMID: 34304263 DOI: 10.1039/d1tb01121a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In the oral environment, the acquired salivary pellicle (ASP) on the tooth surface comprises proteins, glycoproteins, carbohydrates, and lipids. The ASP can specifically and rapidly adsorb on the enamel surface to provide effective lubrication, protection, hydration, and remineralisation, as well as be recognised by various bacteria to form a microbial biofilm (plaque). The involved proteins, particularly various phosphoproteins such as statherins, histatins, and proline-rich proteins, are vital to their specific functions. This review first describes the relationship between the biological functions of these proteins and their structures. Subsequently, recent advances in functional biomedical materials derived from these proteins are reviewed in terms of dental/bone therapeutic materials, antibacterial materials, tissue engineering materials, and coatings for medical devices. Finally, perspectives and challenges regarding the rational design and biomedical applications of ASP-derived materials are discussed.
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Affiliation(s)
- Fan Zhang
- Physical Examination Center, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
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Sterzenbach T, Helbig R, Hannig C, Hannig M. Bioadhesion in the oral cavity and approaches for biofilm management by surface modifications. Clin Oral Investig 2020; 24:4237-4260. [PMID: 33111157 PMCID: PMC7666681 DOI: 10.1007/s00784-020-03646-1] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 10/15/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND All soft and solid surface structures in the oral cavity are covered by the acquired pellicle followed by bacterial colonization. This applies for natural structures as well as for restorative or prosthetic materials; the adherent bacterial biofilm is associated among others with the development of caries, periodontal diseases, peri-implantitis, or denture-associated stomatitis. Accordingly, there is a considerable demand for novel materials and coatings that limit and modulate bacterial attachment and/or propagation of microorganisms. OBJECTIVES AND FINDINGS The present paper depicts the current knowledge on the impact of different physicochemical surface characteristics on bioadsorption in the oral cavity. Furthermore, it was carved out which strategies were developed in dental research and general surface science to inhibit bacterial colonization and to delay biofilm formation by low-fouling or "easy-to-clean" surfaces. These include the modulation of physicochemical properties such as periodic topographies, roughness, surface free energy, or hardness. In recent years, a large emphasis was laid on micro- and nanostructured surfaces and on liquid repellent superhydrophic as well as superhydrophilic interfaces. Materials incorporating mobile or bound nanoparticles promoting bacteriostatic or bacteriotoxic properties were also used. Recently, chemically textured interfaces gained increasing interest and could represent promising solutions for innovative antibioadhesion interfaces. Due to the unique conditions in the oral cavity, mainly in vivo or in situ studies were considered in the review. CONCLUSION Despite many promising approaches for modulation of biofilm formation in the oral cavity, the ubiquitous phenomenon of bioadsorption and adhesion pellicle formation in the challenging oral milieu masks surface properties and therewith hampers low-fouling strategies. CLINICAL RELEVANCE Improved dental materials and surface coatings with easy-to-clean properties have the potential to improve oral health, but extensive and systematic research is required in this field to develop biocompatible and effective substances.
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Affiliation(s)
- Torsten Sterzenbach
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
| | - Ralf Helbig
- Max Bergmann Center of Biomaterials, Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany
| | - Christian Hannig
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, Building 73, 66421, Homburg/Saar, Germany
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Hong G, Chen Z, Han JM, Wang WQ, Gao P, Sasaki K. Effect of amylase activity on mechanical properties of dental composite resin. Dent Mater J 2020; 40:348-355. [PMID: 33087633 DOI: 10.4012/dmj.2020-079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to investigate the effect of amylase activity on the mechanical properties of three dental composite resin (Filtek Z350; Filtek Z250 and Polofil Supra). The specimens were immersed in amylase solution at four different activities (25, 50, 100 and 200 KIU/L) with an artificial saliva solution (AS) as a control. The flexural strength (FS) and elastic modulus (EM) were determined in a three-point bending test after immersion for periods up to 12 months. In addition, surface roughness and surface morphology also determined. The FS of Filtek Z350 reaching the lowest level of 67.86 MPa after AS immersion for one year. There was a general trend for FS to decrease following immersion in AS for all the tested materials. However, the amylase groups did not undergo a significant decrease in FS and EM, and there was a slight increase in FS and EM for Polofil Supra.
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Affiliation(s)
- Guang Hong
- Division for Globalization Initiative, Liaison Center for Innovative Dentistry, Graduate School of Dentistry, Tohoku University
| | - Zhen Chen
- Department of Operative Dentistry and Endodontology, School of Stomatology, Tianjin Medical University.,Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University
| | - Jian-Min Han
- Dental Materials Laboratory, National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology
| | - Wei-Qi Wang
- Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University
| | - Ping Gao
- Department of Prosthetic Dentistry, School of Stomatology, Tianjin Medical University
| | - Keiichi Sasaki
- Division of Advanced Prosthetic Dentistry, Graduate School of Dentistry, Tohoku University
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Grychtol S, Viergutz G, Pötschke S, Bowen WH, Hoth-Hannig W, Leis B, Umanskaya N, Hannig M, Hannig C. Enzymes in the in-situ pellicle of children with different caries activity. Eur J Oral Sci 2015; 123:319-326. [DOI: 10.1111/eos.12207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Susann Grychtol
- Clinic of Operative Dentistry; Medical Faculty Carl Gustav Carus; Technische Universität Dresden; Dresden Germany
| | - Gabriele Viergutz
- Clinic of Operative Dentistry; Medical Faculty Carl Gustav Carus; Technische Universität Dresden; Dresden Germany
| | - Sandra Pötschke
- Clinic of Operative Dentistry; Medical Faculty Carl Gustav Carus; Technische Universität Dresden; Dresden Germany
| | - William H. Bowen
- School of Medicine and Dentistry; University of Rochester Medical Center; Rochester NY USA
| | - Wiebke Hoth-Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry; University Hospital; Saarland University; Homburg/Saar Germany
| | - Birgit Leis
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry; University Hospital; Saarland University; Homburg/Saar Germany
| | - Natalia Umanskaya
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry; University Hospital; Saarland University; Homburg/Saar Germany
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry; University Hospital; Saarland University; Homburg/Saar Germany
| | - Christian Hannig
- Clinic of Operative Dentistry; Medical Faculty Carl Gustav Carus; Technische Universität Dresden; Dresden Germany
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Hotta M, Morikawa T, Tamura D, Kusakabe S. Adherence of Streptococcus sanguinis and Streptococcus mutans to saliva-coated S-PRG resin blocks. Dent Mater J 2014; 33:261-7. [PMID: 24615002 DOI: 10.4012/dmj.2013-242] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This in vitro study performed elemental analysis of the ions absorbed into the salivary coat covering the surfaces of S-PRG resin blocks and assessed the adherence of Streptococcus sanguinis and Streptococcus mutans to these saliva-coated S-PRG resin blocks. Elemental analysis of ions absorbed into the salivary coat of resin blocks exposed to the saliva was performed using an inductive coupled plasma atomic emission spectrometer and the fluoride electrode method. Quantitative adherence of radio-labeled test bacteria to the resin blocks was determined. As the results, the saliva-coated S-PRG resin showed significantly greater amounts of absorbed B, Al, Si, Sr, and F than the saliva-coated unfilled resin. It was of particular significance that the salivary coating of the S-PRG resin reduced the adherence of S. mutans to this resin. However, in the case of S. sanguinis, no significant difference in adherence could be recognized between saliva-coated S-PRG resin and saliva-coated unfilled resin.
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Affiliation(s)
- Masato Hotta
- Division of Oral Functional Science and Rehabilitation, Department of Operative Dentistry, Asahi University School of Dentistry
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10
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Fluorescence microscopic visualization of non cellular components during initial bioadhesion in situ. Arch Oral Biol 2013; 58:1271-81. [DOI: 10.1016/j.archoralbio.2013.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 07/18/2013] [Indexed: 11/19/2022]
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Influence of saliva substitute films on the initial adhesion of Candida albicans to dental substrata prior to and after artificial ageing. Arch Oral Biol 2010; 55:391-6. [DOI: 10.1016/j.archoralbio.2010.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Revised: 01/22/2010] [Accepted: 03/01/2010] [Indexed: 11/20/2022]
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Hannig C, Follo M, Hellwig E, Al-Ahmad A. Visualization of adherent micro-organisms using different techniques. J Med Microbiol 2010; 59:1-7. [PMID: 19815663 DOI: 10.1099/jmm.0.015420-0] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The visualization and quantification of adherent bacteria is still one of the most relevant topics in microbiology. Besides electron microscopic techniques such as transmission electron microscopy, scanning electron microscopy and environmental scanning electron microscopy, modern fluorescence microscopic approaches based on fluorogenic dyes offer detailed insight into bacterial biofilms. The aim of the present review was to provide an overview of the advantages and disadvantages of different methods for visualization of adherent bacteria with a special focus on the experiences gained in dental research.
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Affiliation(s)
- Christian Hannig
- Department of Operative Dentistry and Periodontology, University of Freiburg, Hugstetter Str. 55, D-79106 Freiburg, Germany
| | - Marie Follo
- Department of Hematology and Oncology, Core Facility, Albert-Ludwig University, Freiburg, Germany
| | - Elmar Hellwig
- Department of Operative Dentistry and Periodontology, University of Freiburg, Hugstetter Str. 55, D-79106 Freiburg, Germany
| | - Ali Al-Ahmad
- Department of Operative Dentistry and Periodontology, University of Freiburg, Hugstetter Str. 55, D-79106 Freiburg, Germany
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The oral cavity—a key system to understand substratum-dependent bioadhesion on solid surfaces in man. Clin Oral Investig 2009; 13:123-39. [DOI: 10.1007/s00784-008-0243-3] [Citation(s) in RCA: 158] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2008] [Accepted: 12/08/2008] [Indexed: 10/21/2022]
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Svendsen IE, Lindh L. The composition of enamel salivary films is different from the ones formed on dental materials. BIOFOULING 2009; 25:255-261. [PMID: 19177227 DOI: 10.1080/08927010802712861] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study utilized two-dimensional gel electrophoresis (2DE) to illustrate the compositional differences between in vitro salivary conditioning films (denoted pellicles) formed on human enamel as well as on the dental materials titanium and poly(methyl methacrylate). The salivary pellicles were formed by immersing each surface in individual tubes containing small volumes of freshly collected whole saliva. Saliva remaining in the tubes after the pellicle formation for 2 h was visualized by means of 2DE and silver staining. The results showed that the protein patterns in 2DE of the liquid phase of saliva left after the exposure to the respective surfaces, regarding proteins <100 kDa in size, were different depending on the surface used. Several protein groups and/or individual proteins were shown to be distinct for each surface used.
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Affiliation(s)
- I E Svendsen
- Biomedical Laboratory Science and Technology, Faculty of Health and Society, Malmö University, Malmö, Sweden.
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15
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Hahnel S, Rosentritt M, Handel G, Bürgers R. Influence of saliva substitute films on initial Streptococcus mutans adhesion to enamel and dental substrata. J Dent 2008; 36:977-83. [DOI: 10.1016/j.jdent.2008.08.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2008] [Revised: 07/20/2008] [Accepted: 08/07/2008] [Indexed: 11/29/2022] Open
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Wiegand A, Bliggenstorfer S, Magalhães AC, Sener B, Attin T. Impact of the in situ formed salivary pellicle on enamel and dentine erosion induced by different acids. Acta Odontol Scand 2008; 66:225-30. [PMID: 18607835 DOI: 10.1080/00016350802183401] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To investigate and compare the protective impact of the in situ formed salivary pellicle on enamel and dentine erosion caused by different acids at pH 2.6. METHODS Bovine enamel and dentine samples were exposed for 120 min in the oral cavity of 10 healthy volunteers. Subsequently, enamel and dentine pellicle-covered specimens were extraorally immersed in 1 ml hydrochloric, citric or phosphoric acid (pH 2.6, 60 s, each acid n=30 samples). Pellicle-free samples (each acid n=10) served as controls. Calcium release into the acid was determined by atomic absorption spectroscopy. The data were analysed by two-way ANOVA and Tukey's test (alpha=0.05). RESULTS Pellicle-covered samples showed significantly less calcium loss compared to pellicle-free samples in all acid groups. The mean (SD) pellicle protection (% reduction of calcium loss) was significantly better for enamel samples [60.9 (5.3)] than for dentine samples [30.5 (5.0)], but revealed no differences among the acids. CONCLUSION The efficacy of the in situ pellicle in reducing erosion was 2-fold better for enamel than for dentine. Protection of the pellicle was not influenced by the kind of acid when enamel and dentine erosion was performed at pH 2.6.
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Hannig C, Spitzmüller B, Miller M, Hellwig E, Hannig M. Intrinsic enzymatic crosslinking and maturation of the in situ pellicle. Arch Oral Biol 2008; 53:416-22. [DOI: 10.1016/j.archoralbio.2007.12.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 11/14/2007] [Accepted: 12/10/2007] [Indexed: 11/28/2022]
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Vitorino R, Calheiros-Lobo MJ, Duarte JA, Domingues PM, Amado FML. Peptide profile of human acquired enamel pellicle using MALDI tandem MS. J Sep Sci 2008; 31:523-37. [PMID: 18266264 DOI: 10.1002/jssc.200700486] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The present study proposes a strategy for human in vivo acquired enamel pellicle (AEP) peptidome characterisation based on sequential extraction with guanidine and TFA followed by MALDI-TOF/TOF identification. Three different nanoscale analytical approaches were used: samples were subjected to tryptic digestion followed by nano-HPLC and mass spectrometry (MS and MS/MS) analysis. Undigested samples were analysed by LC-MS (both linear and reflector modes) and LC-MS/MS analysis, and samples were subjected to nano-HPLC followed by on-plate digestion and mass spectrometry (MS and MS/MS) analysis. The majority of the identifications corresponded to peptide/protein fragments of salivary protein, belonging to the classes: acidic PRPs, basic PRPs, statherin, cystatins S and SN and histatin 1 (all also identified in intact form). Overall, more than 90 peptides/proteins were identified. Results clearly show that peptides with acidic groups are enriched in the TFA fraction while peptides with no acidic or phosphate groups are prevalent on the guanidine extract. Also, phosphorylated peptides were observed mainly on the TFA fraction. Fragments present in the AEP show a predominance of cleavage points located at Arg, Tyr and Lys residues. Obtained data suggest that proteolytic activity could influence AEP formation and composition.
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Affiliation(s)
- Rui Vitorino
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
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