151
|
Adhesion of Porphyromonas gingivalis and Tannerella forsythia to dentin and titanium with sandblasted and acid etched surface coated with serum and serum proteins - An in vitro study. Arch Oral Biol 2016; 75:81-88. [PMID: 27825675 DOI: 10.1016/j.archoralbio.2016.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/31/2016] [Accepted: 11/01/2016] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To evaluate the adhesion of selected bacterial strains incl. expression of important virulence factors at dentin and titanium SLA surfaces coated with layers of serum proteins. METHODS Dentin- and moderately rough SLA titanium-discs were coated overnight with human serum, or IgG, or human serum albumin (HSA). Thereafter, Porphyromonas gingivalis, Tannerella forsythia, or a six-species mixture were added for 4h and 24h. The number of adhered bacteria (colony forming units; CFU) was determined. Arg-gingipain activity of P. gingivalis and mRNA expressions of P. gingivalis and T. forsythia proteases and T. forsythia protease inhibitor were measured. RESULTS Coating specimens never resulted in differences exceeding 1.1 log10 CFU, comparing to controls, irrespective the substrate. Counts of T. forsythia were statistically significantly higher at titanium than dentin, the difference was up to 3.7 log10 CFU after 24h (p=0.002). No statistically significant variation regarding adhesion of the mixed culture was detected between surfaces or among coatings. Arg-gingipain activity of P. gingivalis was associated with log10 CFU but not with the surface or the coating. Titanium negatively influenced mRNA expression of T. forsythia protease inhibitor at 24h (p=0.026 uncoated, p=0.009 with serum). CONCLUSIONS The present findings indicate that: a) single bacterial species (T. forsythia) can adhere more readily to titanium SLA than to dentin, b) low expression of T. forsythia protease inhibitor may influence the virulence of the species on titanium SLA surfaces in comparison with teeth, and c) surface properties (e.g. material and/or protein layers) do not appear to significantly influence multi-species adhesion.
Collapse
|
152
|
Iviglia G, Cassinelli C, Bollati D, Baino F, Torre E, Morra M, Vitale-Brovarone C. Engineered porous scaffolds for periprosthetic infection prevention. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:701-715. [DOI: 10.1016/j.msec.2016.06.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/26/2016] [Accepted: 06/13/2016] [Indexed: 01/13/2023]
|
153
|
Menezes KM, Fernandes-Costa AN, Silva-Neto RD, Calderon PS, Gurgel BC. Efficacy of 0.12% Chlorhexidine Gluconate for Non-Surgical Treatment of Peri-Implant Mucositis. J Periodontol 2016; 87:1305-1313. [DOI: 10.1902/jop.2016.160144] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
154
|
Pranskunas M, Poskevicius L, Juodzbalys G, Kubilius R, Jimbo R. Influence of Peri-Implant Soft Tissue Condition and Plaque Accumulation on Peri-Implantitis: a Systematic Review. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2016; 7:e2. [PMID: 27833727 PMCID: PMC5100642 DOI: 10.5037/jomr.2016.7302] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/07/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To systematically examine influence of soft tissue condition and plaque accumulation around dental implants on peri-implantitis development. MATERIAL AND METHODS An electronic literature search was conducted of two databases - MEDLINE (Ovid) and EMBASE from 2011 to 2016. Sequential screenings at the title, abstract, and full-text levels were performed. Clinical human studies in the English language that had reported soft tissue condition or plaque accumulation influence on peri-implantitis development were included. The resulting articles were independently subjected to clear inclusion and exclusion criteria by two reviewers as follows. RESULTS The search resulted in 8 articles meeting the inclusion criteria. These studies reported gingival index, plaque index, pocket depth, bleeding on probing/modified bleeding index for sites with "adequate" (≥ 2 mm) and "inadequate" (< 2 mm) width of keratinized mucosa. Results demonstrated that the amount of keratinized mucosa has little influence on soft-tissue inflammation in the presence of good oral hygiene. However, suboptimal oral hygiene due to difficulty in access for plaque control in the areas of minimal keratinized mucosa may lead to greater tissue damage. CONCLUSIONS In cases with insufficient keratinized gingiva in the vicinity of implants, the insufficiency does not necessarily mediate adverse effects on the hygiene management and soft tissue health condition. Nonetheless, the risk of the increase of gingival index, plaque index, pocket depth, bleeding on probing/modified bleeding index is present. Therefore, the presence of an appropriate amount of keratinized gingiva is required.
Collapse
Affiliation(s)
- Mindaugas Pranskunas
- Department of Maxillofacial Surgery, Lithuanian University of Health Sciences, Kaunas Lithuania
| | - Lukas Poskevicius
- Department of Maxillofacial Surgery, Lithuanian University of Health Sciences, Kaunas Lithuania
| | - Gintaras Juodzbalys
- Department of Maxillofacial Surgery, Lithuanian University of Health Sciences, Kaunas Lithuania
| | - Ricardas Kubilius
- Department of Maxillofacial Surgery, Lithuanian University of Health Sciences, Kaunas Lithuania
| | - Ryo Jimbo
- Department of Oral and Maxillofacial Surgery and Oral Medicine Faculty of Odontology, Malmö University Sweden
| |
Collapse
|
155
|
Stokman MA, van Winkelhoff AJ, Vissink A, Spijkervet FKL, Raghoebar GM. Bacterial colonization of the peri-implant sulcus in dentate patients: a prospective observational study. Clin Oral Investig 2016; 21:717-724. [PMID: 27558381 PMCID: PMC5318475 DOI: 10.1007/s00784-016-1941-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 08/11/2016] [Indexed: 10/29/2022]
Abstract
OBJECTIVES The aim of the present study was to compare the composition of the periodontal microflora at baseline (T0) with the submucosal microflora at least 1 year after implant placement (T1) in periodontally healthy patients. MATERIAL AND METHODS For all 169 consecutive patients that visited our clinic during 1 year, we determined their periodontal parameters, implant mucosal index, and presence of implant calculus. At T0, self-reported smoking status was recorded and subgingival and submucosal biofilm samples were obtained and analyzed for the presence and numbers of selected periodontal pathogens. All measurements were repeated at T1. RESULTS One hundred twenty patients completed the study. Periodontal parameters were stable or had improved at T1. The total bacterial load was lower at implant sites (P < 0.05). The prevalence of Porphyromonas gingivalis was low at baseline, but at T1, detection rate and numbers were higher at implant sites compared to dentate sites. At T1, the frequency of detection of P. gingivalis (P = 0.01), Parvimonas micra (P = 0.018), and Fusobacterium nucleatum (P = 0.035) was higher in smoking patients (n = 23) than in non-smokers (n = 97). CONCLUSIONS Colonization of the submucosal peri-implant area is similar to the composition of subgingival microbiota. Smoking has a measurable effect on the colonization of implant-associated biofilms and may select for P. gingivalis, P. micra, and F. nucleatum. CLINICAL RELEVANCE The colonization of implants by well-known periodontal pathogens is very similar to that in normal dentition, also in a healthy cohort. Smoking status was related with the prevalence of periodontal pathogens where smokers harbored more often periodontal pathogens such as P. gingivalis, P. micra, and F. nucleatum.
Collapse
Affiliation(s)
- M A Stokman
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
| | - A J van Winkelhoff
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.,Department of Center for Dentistry and Oral Hygiene, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - A Vissink
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - F K L Spijkervet
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - G M Raghoebar
- Department of Oral and Maxillofacial Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| |
Collapse
|
156
|
Öztürk VÖ, Emingil G, Bostanci N, Belibasakis GN. Impact of implant-abutment connection on osteoimmunological and microbiological parameters in short implants: a randomized controlled clinical trial. Clin Oral Implants Res 2016; 28:e111-e120. [DOI: 10.1111/clr.12937] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Veli Özgen Öztürk
- Department of Periodontology; School of Dentistry; Adnan Menderes University; Aydın Turkey
| | - Gülnur Emingil
- Department of Periodontology; School of Dentistry; Ege University; Izmir Turkey
| | - Nagihan Bostanci
- Department of Dental Medicine; Karolinska Institute; Stockholm Sweden
- Division of Oral Microbiology and Immunology; Institute of Oral Biology; Center of Dental Medicine; University of Zürich; Zürich Switzerland
| | - Georgios N. Belibasakis
- Department of Dental Medicine; Karolinska Institute; Stockholm Sweden
- Division of Oral Microbiology and Immunology; Institute of Oral Biology; Center of Dental Medicine; University of Zürich; Zürich Switzerland
| |
Collapse
|
157
|
Chen CJ, Chen CC, Ding SJ. Effectiveness of Hypochlorous Acid to Reduce the Biofilms on Titanium Alloy Surfaces in Vitro. Int J Mol Sci 2016; 17:E1161. [PMID: 27447617 PMCID: PMC4964533 DOI: 10.3390/ijms17071161] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/15/2016] [Accepted: 07/15/2016] [Indexed: 11/17/2022] Open
Abstract
Chemotherapeutic agents have been used as an adjunct to mechanical debridement for peri-implantitis treatment. The present in vitro study evaluated and compared the effectiveness of hypochlorous acid (HOCl), sodium hypochlorite (NaOCl), and chlorhexidine (CHX) at eliminating Gram-negative (E. coli and P. gingivalis) and Gram-positive (E. faecalis and S. sanguinis) bacteria. The effect of irrigating volume and exposure time on the antimicrobial efficacy of HOCl was evaluated, and a durability analysis was completed. Live/dead staining, morphology observation, alamarBlue assay, and lipopolysaccharide (LPS) detection were examined on grit-blasted and biofilm-contaminated titanium alloy discs after treatment with the three chemotherapeutic agents. The results indicated that HOCl exhibited better antibacterial efficacy with increasing irrigating volumes. HOCl achieved greater antibacterial efficacy as treatment time was increased. A decrease in antimicrobial effectiveness was observed when HOCl was unsealed and left in contact with the air. All the irrigants showed antibacterial activity and killed the majority of bacteria on the titanium alloy surfaces of biofilm-contaminated implants. Moreover, HOCl significantly lowered the LPS concentration of P. gingivalis when compared with NaOCl and CHX. Thus, a HOCl antiseptic may be effective for cleaning biofilm-contaminated implant surfaces.
Collapse
Affiliation(s)
- Chun-Ju Chen
- Institute of Oral Science, Chung Shan Medical University, Taichung City 402, Taiwan.
| | - Chun-Cheng Chen
- School of Dentistry, Chung Shan Medical University, Taichung City 402, Taiwan.
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung City 402, Taiwan.
| | - Shinn-Jyh Ding
- Institute of Oral Science, Chung Shan Medical University, Taichung City 402, Taiwan.
- School of Dentistry, Chung Shan Medical University, Taichung City 402, Taiwan.
- Department of Dentistry, Chung Shan Medical University Hospital, Taichung City 402, Taiwan.
| |
Collapse
|
158
|
Karimi MR, Hasani A, Khosroshahian S. Efficacy of Antimicrobial Photodynamic Therapy as an Adjunctive to Mechanical Debridement in the Treatment of Peri-implant Diseases: A Randomized Controlled Clinical Trial. J Lasers Med Sci 2016; 7:139-145. [PMID: 28144432 DOI: 10.15171/jlms.2016.24] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: The purpose of the present study was to assess the clinical effects of anti-microbial photodynamic therapy (PDT) after closed surface scaling in the treatment of peri-implant diseases. Methods: Ten patients with a total of 15 pairs of dental implants, showing clinical and radiographic signs of peri-implant diseases, were included in this study. In each patient, one implant randomly served as control implant and the other served as test implant. The control implants were treated with closed surface scaling only and the test implants received additionally PDT, using light with a wavelength of 630 nm and intensity of 2000 mw/cm2 for 120 seconds after application of photosensitizer in peri-implant sulcus. Clinical parameters were evaluated before and 1.5 and 3 months after treatment. Results: Statistical analysis showed significant differences in probing pocket depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and gingival index (GI) at each time point between the two groups. There were no statistically significant changes with respect to any of the parameters in the control group. Complete resolution of BOP at 3 months was achieved in 100% of test implants. At 1.5 and 3 months, there were significant differences in the mean probing depth and CAL gain measurements at implants in the test group. Conclusion: The present study revealed that adjunctive use of PDT following closed surface scaling could lead to clinical improvement of peri-implant diseases. Further studies are necessary to confirm our results.
Collapse
Affiliation(s)
| | - Ali Hasani
- Department of Oral and Maxillofacial Surgery, Azad Islamic University, Tehran, Iran
| | | |
Collapse
|
159
|
Valente NA, Andreana S. Peri-implant disease: what we know and what we need to know. J Periodontal Implant Sci 2016; 46:136-51. [PMID: 27382503 PMCID: PMC4928203 DOI: 10.5051/jpis.2016.46.3.136] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 06/14/2016] [Indexed: 12/31/2022] Open
Abstract
Peri-implant disease is a serious problem that plagues today's dentistry, both in terms of therapy and epidemiology. With the expansion of the practice of implantology and an increasing number of implants placed annually, the frequency of peri-implant disease has greatly expanded. Its clinical manifestations, in the absence of a globally established classification, are peri-implant mucositis and peri-implantitis, the counterparts of gingivitis and periodontitis, respectively. However, many doubts remain about its features. Official diagnostic criteria, globally recognized by the dental community, have not yet been introduced. The latest studies using metagenomic methods are casting doubt on the assumption of microbial equivalence between periodontal and peri-implant crevices. Research on most of the features of peri-implant disease remains at an early stage; moreover, there is not a commonly accepted treatment for it. In any case, although the evidence so far collected is limited, we need to be aware of the current state of the science regarding this topic to better understand and ultimately prevent this disease.
Collapse
Affiliation(s)
- Nicola Alberto Valente
- Department of Periodontics and Endodontics, State University of New York at Buffalo School of Dental Medicine, Buffalo, NY, USA
| | - Sebastiano Andreana
- Department of Restorative Dentistry, State University of New York at Buffalo School of Dental Medicine, Buffalo, NY, USA
| |
Collapse
|
160
|
de Melo F, do Nascimento C, Souza DO, de Albuquerque RF. Identification of oral bacteria on titanium implant surfaces by 16S rDNA sequencing. Clin Oral Implants Res 2016; 28:697-703. [DOI: 10.1111/clr.12865] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Fabiana de Melo
- Department of Biochemistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre RS Brazil
- Faculty of Dentistry; McGill University; Montreal Quebec Canada
- Department of Periodontology; School of Dentistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre RS Brazil
| | - Cássio do Nascimento
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo (USP); Ribeirão Preto Brazil
| | - Diogo Onofre Souza
- Department of Biochemistry; Federal University of Rio Grande do Sul (UFRGS); Porto Alegre RS Brazil
| | - Rubens F. de Albuquerque
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo (USP); Ribeirão Preto Brazil
| |
Collapse
|
161
|
Sridhar S, Abidi Z, Wilson TG, Valderrama P, Wadhwani C, Palmer K, Rodrigues DC. In Vitro Evaluation of the Effects of Multiple Oral Factors on Dental Implants Surfaces. J ORAL IMPLANTOL 2016; 42:248-57. [DOI: 10.1563/aaid-joi-d-15-00165] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Presence of metal ions and debris resulting from corrosion processes of dental implants in vivo can elicit adverse tissue reactions, possibly leading to peri-implant bone loss and eventually implant failure. This study hypothesized that the synergistic effects of bacterial biofilm and micromotion can cause corrosion of dental implants and release of metal ions in vivo. The goal is to simulate the oral environment where an implant will be exposed to a combination of acidic electrochemical environment and mechanical forces. Four conditions were developed to understand the individual and synergistic effects of mechanical forces and bacterial biofilm on the surface of dental implants; In condition 1, it was found that torsional forces during surgical insertion did not generate wear particle debris or metal ions. In condition 2, fatigue tests were performed in a wet environment to evaluate the effect of cyclic occlusal forces. The mechanical forces applied on the implants were able to cause implant fracture as well as surface corrosion features such as discoloration, delamination, and fatigue cracks. Immersion testing (condition 3) showed that bacteria (Streptococcus mutans) were able to create an acidic condition that triggered surface damage such as discoloration, rusting, and pitting. A novel testing setup was developed to understand the conjoint effects of micromotion and bacterial biofilm (condition 4). Surface damage initiated by acidic condition due to bacteria (condition 3), can be accelerated in tandem with mechanical forces through fretting-crevice corrosion. Permanent damage to surface layers can affect osseointegration and deposition of metal ions in the surrounding tissues can trigger inflammation.
Collapse
Affiliation(s)
| | - Zain Abidi
- Department of Biological Sciences, University of Texas at Dallas, Richardson, Texas
| | | | | | - Chandur Wadhwani
- Department of Restorative Dentistry, University of Washington, Seattle, Wash
| | - Kelli Palmer
- Department of Biological Sciences, University of Texas at Dallas, Richardson, Texas
| | | |
Collapse
|
162
|
John G, Becker J, Schwarz F. Effects of different titanium zirconium implant surfaces on initial supragingival plaque formation. Clin Oral Implants Res 2016; 28:e84-e90. [DOI: 10.1111/clr.12878] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Gordon John
- Department of Oral Surgery; Westdeutsche Kieferklinik; Heinrich Heine University Düsseldorf; Düsseldorf Germany
| | - Jürgen Becker
- Department of Oral Surgery; Westdeutsche Kieferklinik; Heinrich Heine University Düsseldorf; Düsseldorf Germany
| | - Frank Schwarz
- Department of Oral Surgery; Westdeutsche Kieferklinik; Heinrich Heine University Düsseldorf; Düsseldorf Germany
| |
Collapse
|
163
|
Ciandrini E, Campana R, Casettari L, Perinelli DR, Fagioli L, Manti A, Palmieri GF, Papa S, Baffone W. Characterization of biosurfactants produced by Lactobacillus spp. and their activity against oral streptococci biofilm. Appl Microbiol Biotechnol 2016; 100:6767-6777. [PMID: 27102127 DOI: 10.1007/s00253-016-7531-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 03/22/2016] [Accepted: 03/31/2016] [Indexed: 01/29/2023]
Abstract
Lactic acid bacteria (LAB) can interfere with pathogens through different mechanisms; one is the production of biosurfactants, a group of surface-active molecules, which inhibit the growth of potential pathogens. In the present study, biosurfactants produced by Lactobacillus reuteri DSM 17938, Lactobacillus acidophilus DDS-1, Lactobacillus rhamnosus ATCC 53103, and Lactobacillus paracasei B21060 were dialyzed (1 and 6 kDa) and characterized in term of reduction of surface tension and emulsifying activity. Then, aliquots of the different dialyzed biosurfactants were added to Streptococcus mutans ATCC 25175 and Streptococcus oralis ATCC 9811 in the culture medium during the formation of biofilm on titanium surface and the efficacy was determined by agar plate count, biomass analyses, and flow cytometry. Dialyzed biosurfactants showed abilities to reduce surface tension and to emulsifying paraffin oil. Moreover, they significantly inhibited the adhesion and biofilm formation on titanium surface of S. mutans and S. oralis in a dose-dependent way, as demonstrated by the remarkable decrease of cfu/ml values and biomass production. The antimicrobial properties observed for dialyzed biosurfactants produced by the tested lactobacilli opens future prospects for their use against microorganisms responsible of oral diseases.
Collapse
Affiliation(s)
- Eleonora Ciandrini
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Raffaella Campana
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Luca Casettari
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Diego R Perinelli
- School of Pharmacy, University of Camerino, via S. Agostino 1, 62032, Camerino, MC, Italy
| | - Laura Fagioli
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Anita Manti
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | | | - Stefano Papa
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy
| | - Wally Baffone
- Department of Biomolecular Sciences, Division of Toxicological, Hygiene and Environmental Sciences, University of Urbino "Carlo Bo", Via S. Chiara 27, 61029, Urbino, Italy.
| |
Collapse
|
164
|
Feng H, Wang G, Jin W, Zhang X, Huang Y, Gao A, Wu H, Wu G, Chu PK. Systematic Study of Inherent Antibacterial Properties of Magnesium-based Biomaterials. ACS APPLIED MATERIALS & INTERFACES 2016; 8:9662-9673. [PMID: 27043895 DOI: 10.1021/acsami.6b02241] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Magnesium-based materials are preferred in temporary orthopedic implants because of their biodegradability, mechanical properties, and intrinsic antibacterial properties. However, the fundamental mechanism of bacteria killing and roles of various factors are not clearly understood. In this study, we performed a systematic study of the antibacterial properties of two common Mg-based materials using a biofilm forming bacterium. Complete annihilation of the initial 3 × 10(4) bacteria is achieved with both materials in 0.1 mL LB medium in 24 h, whereas in the control, they proliferate to 10(10). The bacteria are killed more effectively in the solution than on the surface, and the bacteria killing efficiency depends more on the concentrations of the magnesium ions and hydroxyl ions than the corrosion rate. The killing process is reproduced using formula solutions, and killing is revealed to stem from the synergetic effects of alkalinity and magnesium ions instead of either one of them or Mg(OH)2 precipitate. Reactive oxygen species (ROS) are detected from the bacteria during the killing process but are not likely produced by the redox reaction directly, because they are detected at least 3 h after the reaction has commenced. The average cell size increases during the killing process, suggesting that the bacteria have difficulty with normal division which also contributes to the reduced bacteria population.
Collapse
Affiliation(s)
- Hongqing Feng
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Guomin Wang
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Weihong Jin
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Xuming Zhang
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Yifan Huang
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Ang Gao
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Hao Wu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Guosong Wu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| | - Paul K Chu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong China
| |
Collapse
|
165
|
Brandenberg FD, Sailer I, Fehmer V, Büchi DLE, Hämmerle CHF, Thoma DS. Randomized controlled clinical pilot study of all-ceramic single-tooth implant reconstructions: clinical and microbiological outcomes at one year of loading. Clin Oral Implants Res 2016; 28:406-413. [DOI: 10.1111/clr.12813] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Francine D. Brandenberg
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zürich Switzerland
| | - Irena Sailer
- Division of Fixed Prosthodontics and Biomaterials; Clinic of Dental Medicine; University of Geneva; Geneva Switzerland
| | - Vincent Fehmer
- Division of Fixed Prosthodontics and Biomaterials; Clinic of Dental Medicine; University of Geneva; Geneva Switzerland
| | | | - Christoph H. F. Hämmerle
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zürich Switzerland
| | - Daniel S. Thoma
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science; University of Zurich; Zürich Switzerland
| |
Collapse
|
166
|
Liu Z, Ma S, Duan S, Xuliang D, Sun Y, Zhang X, Xu X, Guan B, Wang C, Hu M, Qi X, Zhang X, Gao P. Modification of Titanium Substrates with Chimeric Peptides Comprising Antimicrobial and Titanium-Binding Motifs Connected by Linkers To Inhibit Biofilm Formation. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5124-5136. [PMID: 26863404 DOI: 10.1021/acsami.5b11949] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bacterial adhesion and biofilm formation are the primary causes of implant-associated infection, which is difficult to eliminate and may induce failure in dental implants. Chimeric peptides with both binding and antimicrobial motifs may provide a promising alternative to inhibit biofilm formation on titanium surfaces. In this study, chimeric peptides were designed by connecting an antimicrobial motif (JH8194: KRLFRRWQWRMKKY) with a binding motif (minTBP-1: RKLPDA) directly or via flexible/rigid linkers to modify Ti surfaces. We evaluated the binding behavior of peptides using quartz crystal microbalance (QCM) and atomic force microscopy (AFM) techniques and investigated the effect of the modification of titanium surfaces with these peptides on the bioactivity of Streptococcus gordonii (S. gordonii) and Streptococcus sanguis (S. sanguis). Compared with the flexible linker (GGGGS), the rigid linker (PAPAP) significantly increased the adsorption of the chimeric peptide on titanium surfaces (p < 0.05). Concentration-dependent adsorption is consistent with a single Langmuir model, whereas time-dependent adsorption is in line with a two-domain Langmuir model. Additionally, the chimeric peptide with the rigid linker exhibited more effective antimicrobial ability than the peptide with the flexible linker. This finding was ascribed to the ability of the rigid linker to separate functional domains and reduce their interference to the maximum extent. Consequently, the performance of chimeric peptides with specific titanium-binding motifs and antimicrobial motifs against bacteria can be optimized by the proper selection of linkers. This rational design of chimeric peptides provides a promising alternative to inhibit the formation of biofilms on titanium surfaces with the potential to prevent peri-implantitis and peri-implant mucositis.
Collapse
Affiliation(s)
- Zihao Liu
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Shiqing Ma
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Shun Duan
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Deng Xuliang
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology , Beijing 100081, People's Republic of China
| | - Yingchun Sun
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Xi Zhang
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Xinhua Xu
- School of Materials Science and Engineering, Tianjin University , Tianjin 300072, People's Republic of China
| | - Binbin Guan
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Chao Wang
- School of Materials Science and Engineering, Tianjin University , Tianjin 300072, People's Republic of China
| | - Meilin Hu
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Xingying Qi
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Xu Zhang
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| | - Ping Gao
- School and Hospital of Stomatology, Tianjin Medical University , Tianjin 300070, People's Republic of China
| |
Collapse
|
167
|
Sousa V, Mardas N, Spratt D, Boniface D, Dard M, Donos N. Experimental models for contamination of titanium surfaces and disinfection protocols. Clin Oral Implants Res 2016; 27:1233-1242. [DOI: 10.1111/clr.12735] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2015] [Indexed: 12/29/2022]
Affiliation(s)
- Vanessa Sousa
- Periodontology Unit; Department of Clinical Research; UCL Eastman Dental Institute; London UK
- Department of Microbial Diseases; UCL Eastman Dental Institute; London UK
| | - Nikos Mardas
- Centre for Adult Oral Health; Periodontology Unit, QMUL Bart's and The London School of Dentistry and Hospital; London UK
| | - David Spratt
- Department of Microbial Diseases; UCL Eastman Dental Institute; London UK
| | - David Boniface
- Health Behaviour Research Centre; Department of Epidemiology and Public Health; University College London; London UK
| | - Michel Dard
- Department of Periodontology and Implant Dentistry; New York University College of Dentistry; New York NY USA
| | - Nikolaos Donos
- Periodontology Unit; Department of Clinical Research; UCL Eastman Dental Institute; London UK
- Centre for Oral Clinical Research; Institute of Dentistry, Barts & The London School of Medicine & Dentistry; QMUL London UK
| |
Collapse
|
168
|
Widodo A, Spratt D, Sousa V, Petrie A, Donos N. An in vitro study on disinfection of titanium surfaces. Clin Oral Implants Res 2016; 27:1227-1232. [PMID: 26863898 DOI: 10.1111/clr.12733] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2015] [Indexed: 01/07/2023]
Abstract
OBJECTIVE The aim of this in vitro study was to evaluate the efficacy of different methods used for the decontamination of titanium surfaces previously infected with a Staphylococcus aureus biofilm. MATERIALS AND METHODS S. aureus biofilms were grown on three different titanium surfaces (n = 114); polished, sandblasted large-grit acid-etched (SLA) and SLActive. The experimental groups were divided into six different disinfection modalities as follows: (i) rinsing with phosphate-buffered saline, (ii) rinsing with chlorhexidine digluconate 0.2% (CHX), (iii) application of photodynamic therapy (PDT), (iv) use of cotton pellet, (v) use of titanium brush (TiB) and (vi) the use of TiB and PDT. The decontamination effect of each modality was evaluated by microbial culture analysis and by scanning electron microscopy imaging. Two-way analysis of variance (ANOVA) and Bonferroni's post hoc comparisons were used to compare mean differences between colony-forming units per millilitre (CFU/ml) values, surfaces and treatments (P < 0.025). RESULTS This study demonstrated that the combination protocol (TiB and PDT) was the most effective in reducing S. aureus (P < 0.025) on polished (2.0 × 103 CFU/Disc) and SLA surface (6.9 × 103 CFU/Disc). On the SLActive surface, the combination treatment was not significantly different to the TiB group (1.0 × 105 CFU/Disc) or the PDT group (2.0 × 105 CFU/Disc). CONCLUSION The combined technique of TiB and PDT was shown to be an efficient method in reducing the number of S. aureus in both polished and rough titanium surfaces. These findings prompt further investigations in titanium decontamination techniques with a combination of TiB and PDT within a natural microcosm bacterial environment.
Collapse
Affiliation(s)
- Arifo Widodo
- Periodontology Unit, Department of Clinical Research, UCL Eastman Dental Institute, London, UK
| | - David Spratt
- Department of Microbial Diseases, UCL Eastman Dental Institute, London, UK
| | - Vanessa Sousa
- Periodontology Unit, Department of Clinical Research, UCL Eastman Dental Institute, London, UK.,Department of Microbial Diseases, UCL Eastman Dental Institute, London, UK
| | - Aviva Petrie
- Biostatistics Unit, UCL Eastman Dental Institute, London, UK.,Centre for Oral Clinical Research, Institute of Dentistry, Barts & The London School of Medicine & Dentistry, QMUL, London, UK
| | - Nikolaos Donos
- Periodontology Unit, Department of Clinical Research, UCL Eastman Dental Institute, London, UK.
| |
Collapse
|
169
|
Dalago HR, Schuldt Filho G, Rodrigues MAP, Renvert S, Bianchini MA. Risk indicators for Peri-implantitis. A cross-sectional study with 916 implants. Clin Oral Implants Res 2016; 28:144-150. [DOI: 10.1111/clr.12772] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Haline Renata Dalago
- Implant Dentistry; Federal University of Santa Catarina (UFSC); Florianópolis Brazil
| | - Guenther Schuldt Filho
- Implant Dentistry; Federal University of Santa Catarina (UFSC); Florianópolis Brazil
- Universität Bern; Bern Switzerland
| | | | - Stefan Renvert
- Department of Health Sciences; Kristianstad University; Kristianstad Sweden
- Blekinge Institute of Technology; Karlskrona Sweden
- School of Dental Sciences; Trinity College; Dublin Ireland
| | | |
Collapse
|
170
|
Abstract
The oral microbiota represents an important part of the human microbiota, and includes several hundred to several thousand diverse species. It is a normal part of the oral cavity and has an important function to protect against colonization of extrinsic bacteria which could affect systemic health. On the other hand, the most common oral diseases caries, gingivitis and periodontitis are based on microorganisms. While (medical) research focused on the planktonic phase of bacteria over the last 100 years, it is nowadays generally known, that oral microorganisms are organised as biofilms. On any non-shedding surfaces of the oral cavity dental plaque starts to form, which meets all criteria for a microbial biofilm and is subject to the so-called succession. When the sensitive ecosystem turns out of balance - either by overload or weak immune system - it becomes a challenge for local or systemic health. Therefore, the most common strategy and the golden standard for the prevention of caries, gingivitis and periodontitis is the mechanical removal of this biofilms from teeth, restorations or dental prosthesis by regular toothbrushing.
Collapse
Affiliation(s)
- Nicole B Arweiler
- Department of Periodontology, University of Marburg, Georg-Voigt-Str., 35039, Marburg, Germany.
| | - Lutz Netuschil
- Department of Periodontology, University of Marburg, Georg-Voigt-Str., 35039, Marburg, Germany
| |
Collapse
|
171
|
Liu M, Zhou J, Yang Y, Zheng M, Yang J, Tan J. Surface modification of zirconia with polydopamine to enhance fibroblast response and decrease bacterial activity in vitro : A potential technique for soft tissue engineering applications. Colloids Surf B Biointerfaces 2015; 136:74-83. [DOI: 10.1016/j.colsurfb.2015.06.047] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 04/22/2015] [Accepted: 06/24/2015] [Indexed: 10/23/2022]
|
172
|
Schienle S, Al-Ahmad A, Kohal RJ, Bernsmann F, Adolfsson E, Montanaro L, Palmero P, Fürderer T, Chevalier J, Hellwig E, Karygianni L. Microbial adhesion on novel yttria-stabilized tetragonal zirconia (Y-TZP) implant surfaces with nitrogen-doped hydrogenated amorphous carbon (a-C:H:N) coatings. Clin Oral Investig 2015; 20:1719-32. [DOI: 10.1007/s00784-015-1655-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 11/09/2015] [Indexed: 12/14/2022]
|
173
|
Gomi K, Matsushima Y, Ujiie Y, Shirakawa S, Nagano T, Kanazashi M, Yashima A. Full-mouth scaling and root planing combined with azithromycin to treat peri-implantitis. Aust Dent J 2015; 60:503-10. [DOI: 10.1111/adj.12257] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2014] [Indexed: 11/27/2022]
Affiliation(s)
- K Gomi
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| | - Y Matsushima
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| | - Y Ujiie
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| | - S Shirakawa
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| | - T Nagano
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| | - M Kanazashi
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| | - A Yashima
- Department of Periodontology; School of Dental Medicine; Tsurumi University; Japan
| |
Collapse
|
174
|
Narendrakumar K, Kulkarni M, Addison O, Mazare A, Junkar I, Schmuki P, Sammons R, Iglič A. Adherence of oral streptococci to nanostructured titanium surfaces. Dent Mater 2015; 31:1460-8. [PMID: 26467718 DOI: 10.1016/j.dental.2015.09.011] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 07/15/2015] [Accepted: 09/21/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Peri-implantitis and peri-mucositis pose a severe threat to the success of dental implants. Current research focuses on the development of surfaces that inhibit biofilm formation while not inferring with tissue integration. This study compared the adherence of two oral bacterial species, Streptococcus sanguinis and Streptococcus mutans to nanostructured titanium surfaces. METHODS The samples included TiO2 nanotubes formed by anodization of titanium foil of 100, 50 and 15nm diameter (NT15, NT50, NT100), a nanoporous (15nm pore diameter) surface and compact TiO2 control. Adherent surviving bacteria were enumerated after 1h in an artificial saliva medium containing bovine mucin. RESULTS Lowest numbers of adherent bacteria of both species were recovered from the original titanium foil and nanoporous surface and highest numbers from the Ti100 nanotubes. Numbers of attached S. sanguinis increased in the order (NT15<NT50<NT100), correlated with increasing percentage of surface fluoride. The lowest adhesion of S. sanguinis and S. mutans on TiO2 nanostructured surfaces was observed for small diameter nanoporous surfaces which coincides with the highest osteoblast adhesion on small diameter nanotubular/nanoporous surfaces shown in previous work. SIGNIFICANCE This study indicates that the adherence of oral streptococci can be modified by titanium anodization and nanotube diameter.
Collapse
Affiliation(s)
- Krunal Narendrakumar
- School of Dentistry, University of Birmingham, St Chad's Queensway, Birmingham B4 6NN, UK
| | - Mukta Kulkarni
- Laboratory of Biophysics, Faculty of Electrical Engineering, University of Ljubljana, Ljubljana SI-1000, Slovenia
| | - Owen Addison
- School of Dentistry, University of Birmingham, St Chad's Queensway, Birmingham B4 6NN, UK
| | - Anca Mazare
- Department of Materials Science and Engineering, Chair of Surface Science and Corrosion, University of Erlangen-Nuremberg, WW4-LKO, Erlangen, Germany
| | - Ita Junkar
- Jožef Stefan Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Patrik Schmuki
- Department of Materials Science and Engineering, Chair of Surface Science and Corrosion, University of Erlangen-Nuremberg, WW4-LKO, Erlangen, Germany
| | - Rachel Sammons
- School of Dentistry, University of Birmingham, St Chad's Queensway, Birmingham B4 6NN, UK.
| | - Aleš Iglič
- Laboratory of Biophysics, Faculty of Electrical Engineering, University of Ljubljana, Ljubljana SI-1000, Slovenia
| |
Collapse
|
175
|
Renvert S, Quirynen M. Risk indicators for peri-implantitis. A narrative review. Clin Oral Implants Res 2015; 26 Suppl 11:15-44. [DOI: 10.1111/clr.12636] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Stefan Renvert
- Department of Oral Health Sciences; Kristianstad University; Kristianstad Sweden
- School of Dental Sciences; Trinity College; Dublin Ireland
- Blekinge Institute of Technology; Karlskrona Sweden
| | - Marc Quirynen
- Department of Oral Health Sciences; Katholieke Universiteit Leuven; University Hospitals Leuven; Leuven Belgium
| |
Collapse
|
176
|
Glauser R. Implants with an Oxidized Surface Placed Predominately in Soft Bone Quality and Subjected to Immediate Occlusal Loading: Results from an 11-Year Clinical Follow-Up. Clin Implant Dent Relat Res 2015; 18:429-38. [PMID: 26268951 DOI: 10.1111/cid.12327] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE The purpose of this clinical follow-up was to document the 11-year outcome of implants with a moderately rough oxidized surface subjected to immediate occlusal loading. MATERIALS AND METHODS Twenty-six of 38 patients enrolled in a 5-year prospective study were available for this follow-up analysis, with 33 restorations supported by 66 slightly tapered implants (Brånemark System MkIV, Nobel Biocare, Gothenburg, Sweden). The majority of implants were placed in posterior regions (88%) and into soft bone (76%). Parameters included cumulative survival rate (CSR), radiographic marginal bone level, bleeding on probing (BOP), intrasulcular counts of perio-pathogenic markers (DNA probes), and total bacterial load (TBL). RESULTS The CSR was 97.1% at 11.2 years mean follow-up. Mean marginal bone remodeling was 0.47 mm (SD 1.09, n = 65) from 1 year postplacement to 11-year follow-up. BOP was absent at most sites (63.6%). No statistically significant differences in TBL or perio-pathogenic marker species were observed at implants and teeth. CONCLUSION The results of the present follow-up show high long-term survival, stable marginal bone levels, and soft tissue outcomes of oxidized surface implants placed predominately in posterior regions and soft bone. The quantity and quality of intrasulcular microbiota were comparable at implants and teeth.
Collapse
Affiliation(s)
- Roland Glauser
- Zurich, Switzerland.,Department of Periodontics, College of Dental Medicine, Georgia Regents University, Augusta, GA, USA
| |
Collapse
|
177
|
Oral Streptococci Biofilm Formation on Different Implant Surface Topographies. BIOMED RESEARCH INTERNATIONAL 2015; 2015:159625. [PMID: 26273590 PMCID: PMC4529887 DOI: 10.1155/2015/159625] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/04/2014] [Accepted: 11/04/2014] [Indexed: 11/23/2022]
Abstract
The establishment of the subgingival microbiota is dependent on successive colonization of the implant surface by bacterial species. Different implant surface topographies could influence the bacterial adsorption and therefore jeopardize the implant survival. This study evaluated the biofilm formation capacity of five oral streptococci species on two titanium surface topographies. In vitro biofilm formation was induced on 30 titanium discs divided in two groups: sandblasted acid-etched (SAE- n = 15) and as-machined (M- n = 15) surface. The specimens were immersed in sterilized whole human unstimulated saliva and then in fresh bacterial culture with five oral streptococci species: Streptococcus sanguinis, Streptococcus salivarius, Streptococcus mutans, Streptococcus sobrinus, and Streptococcus cricetus. The specimens were fixed and stained and the adsorbed dye was measured. Surface characterization was performed by atomic force and scanning electron microscopy. Surface and microbiologic data were analyzed by Student's t-test and two-way ANOVA, respectively (P < 0.05). S. cricetus, S. mutans, and S. sobrinus exhibited higher biofilm formation and no differences were observed between surfaces analyzed within each species (P > 0.05). S. sanguinis exhibited similar behavior to form biofilm on both implant surface topographies, while S. salivarius showed the lowest ability to form biofilm. It was concluded that biofilm formation on titanium surfaces depends on surface topography and species involved.
Collapse
|
178
|
Tawse-Smith A, Atieh MA, Tompkins G, Duncan WJ, Reid MR, Stirling CH. The effect of piezoelectric ultrasonic instrumentation on titanium discs: a microscopy and trace elemental analysis in vitro study. Int J Dent Hyg 2015; 14:191-201. [PMID: 26094557 DOI: 10.1111/idh.12142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2015] [Indexed: 11/27/2022]
Abstract
AIM To evaluate in vitro topographical and composition changes by piezoelectric ultrasonic instrumentation with metallic and plastic tips on machined and moderately roughened titanium surfaces. METHODS Twenty machined and moderately roughened laser-marked titanium discs were ultrasonically instrumented with metallic and plastic tips. Surface instrumentation was carried out with controlled pressure for 20 and 30 seconds at two power settings. For each time and power setting, instrumentation was repeated four times with one instrumentation per disc quadrant. Surface topography analysis was performed using scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). Surface roughness measurements were compared between instrumented and non-instrumented surfaces. Surface element composition and rinsing solutions were evaluated using energy-dispersive spectroscopy (EDS) and trace elemental analysis using inductively coupled plasma mass spectrometry (ICPMS), respectively. RESULTS SEM photomicrographs and CLSM 3D surface plot images of instrumented machined and moderately roughened surfaces demonstrated severe surface topographical alterations with metallic tips and mild to moderate changes for plastic tip instrumented sites. ICPMS analysis of the rinsing solutions identified titanium and other metal traces with the use of metallic tips, and mainly titanium and carbon when plastic tips were used. Surface EDS analysis showed elemental traces of the ultrasonic tips. CONCLUSION Ultrasonic instrumentation with metallic or plastic tips created surface topographical and compositional changes. Different changes in surface topography were noted between the surfaces, as the roughness of the machined surfaces increased while the extent of roughness of the moderately roughened surfaces decreased. The clinical relevance of these changes is yet to be determined.
Collapse
Affiliation(s)
- A Tawse-Smith
- Oral Implantology Research Group, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M A Atieh
- Private practice, Dunedin, 9010, New Zealand
| | - G Tompkins
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - W J Duncan
- Oral Sciences Department, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M R Reid
- Department of Chemistry, University of Otago, Dunedin, New Zealand.,Centre for Trace Element Analysis, University of Otago, Dunedin, New Zealand
| | - C H Stirling
- Department of Chemistry, University of Otago, Dunedin, New Zealand.,Centre for Trace Element Analysis, University of Otago, Dunedin, New Zealand
| |
Collapse
|
179
|
Antifouling coatings for dental implants: Polyethylene glycol-like coatings on titanium by plasma polymerization. Biointerphases 2015; 10:029505. [DOI: 10.1116/1.4913376] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
180
|
Surgical Treatment of Peri-Implantitis: A 17-Year Follow-Up Clinical Case Report. Case Rep Dent 2015; 2015:574676. [PMID: 26064700 PMCID: PMC4443933 DOI: 10.1155/2015/574676] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/27/2015] [Indexed: 12/16/2022] Open
Abstract
The purpose of the present case report was to describe the surgical treatment of a peri-implantitis lesion associated with a regenerative approach. A 48-year-old patient came to authors' attention 36 months after the placement of a dental implant (ITI-Bonefit Straumann, Waldenburg, Switzerland) in position 46. A swelling of the peri-implant soft tissues was observed, associated with bleeding on probing and probing depth > 10 mm. A significant peri-implant bone loss was clearly visible on the periapical radiograph. A nonsurgical periodontal supportive therapy was firstly conducted to reduce the inflammation, followed by the surgical treatment of the defect. After mechanical and chemical decontamination with tetracycline solution, a regenerative approach consisting in the application of deproteinized bovine bone mineral (Bio-Oss, Geistlich Pharma AG, Wolhusen, Switzerland) and a collagen membrane (Bio-Gide, Geistlich Pharma AG, Wolhusen, Switzerland) was performed. An antibiotic therapy was associated with the treatment. The 17-year follow-up showed a physiological probing depth with no clinical signs of peri-implant inflammation and bleeding on probing. No further radiographic bone loss was observed. The treatment described in the present case report seemed to show improved clinical results up to a relevant follow-up period.
Collapse
|
181
|
Gehrke P, Tabellion A, Fischer C. Microscopical and chemical surface characterization of CAD/CAM zircona abutments after different cleaning procedures. A qualitative analysis. J Adv Prosthodont 2015; 7:151-9. [PMID: 25932314 PMCID: PMC4414946 DOI: 10.4047/jap.2015.7.2.151] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/19/2014] [Accepted: 02/04/2015] [Indexed: 01/24/2023] Open
Abstract
PURPOSE To describe and characterize the surface topography and cleanliness of CAD/CAM manufactured zirconia abutments after steaming and ultrasonic cleaning. MATERIALS AND METHODS A total of 12 ceramic CAD/CAM implant abutments of various manufacturers were produced and randomly divided into two groups of six samples each (control and test group). Four two-piece hybrid abutments and two one-piece abutments made of zirconium-dioxide were assessed per each group. In the control group, cleaning by steam was performed. The test group underwent an ultrasonic cleaning procedure with acetone, ethyl alcohol and antibacterial solution. Groups were subjected to scanning electron microscope (SEM) analysis and Energy-dispersive X-ray spectroscopy (EDX) to verify and characterize contaminant chemical characterization non-quantitatively. RESULTS All zirconia CAD/CAM abutments in the present study displayed production-induced wear particles, debris as well as organic and inorganic contaminants. The abutments of the test group showed reduction of surface contamination after undergoing an ultrasonic cleaning procedure. However, an absolute removal of pollutants could not be achieved. CONCLUSION The presence of debris on the transmucosal surface of CAD/CAM zirconia abutments of various manufacturers was confirmed. Within the limits of the study design, the results suggest that a defined ultrasonic cleaning process can be advantageously employed to reduce such debris, thus, supposedly enhancing soft tissue healing. Although the adverse long-term influence of abutment contamination on the biological stability of peri-implant tissues has been evidenced, a standardized and validated polishing and cleaning protocol still has to be implemented.
Collapse
|
182
|
Riben-Grundstrom C, Norderyd O, André U, Renvert S. Treatment of peri-implant mucositis using a glycine powder air-polishing or ultrasonic device: a randomized clinical trial. J Clin Periodontol 2015; 42:462-9. [DOI: 10.1111/jcpe.12395] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Caroline Riben-Grundstrom
- Department of Periodontology/Endodontics and Oral Prosthodontics; Institute for Postgrad Dental Education; Jönköping Sweden
| | - Ola Norderyd
- Department of Periodontology/Endodontics and Oral Prosthodontics; Institute for Postgrad Dental Education; Jönköping Sweden
- Faculty of Odontology; Malmö University; Malmö Sweden
| | - Ulrika André
- Department of Periodontology/Endodontics and Oral Prosthodontics; Institute for Postgrad Dental Education; Jönköping Sweden
| | - Stefan Renvert
- Department of Oral Sciences; Kristianstad University; Kristianstad Sweden
- Blekinge Institute of Technology; Karlskrona Sweden
- School of Dental Sciences; Trinity College; Dublin Ireland
| |
Collapse
|
183
|
Wang Y, Zhang Y, Miron RJ. Health, Maintenance, and Recovery of Soft Tissues around Implants. Clin Implant Dent Relat Res 2015; 18:618-34. [PMID: 25873299 DOI: 10.1111/cid.12343] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The health of peri-implant soft tissues is one of the most important aspects of osseointegration necessary for the long-term survival of dental implants. PURPOSE To review the process of soft tissue healing around osseointegrated implants and discuss the maintenance requirements as well as the possible short-comings of peri-implant soft tissue integration. MATERIALS AND METHODS Literature search on the process involved in osseointegration, soft tissue healing and currently available treatment modalities was performed and a brief description of each process was provided. RESULTS The peri-implant interface has been shown to be less effective than natural teeth in resisting bacterial invasion because gingival fiber alignment and reduced vascular supply make it more vulnerable to subsequent peri-implant disease and future bone loss around implants. And we summarized common procedures which have been shown to be effective in preventing peri-implantitis disease progression as well as clinical techniques utilized to regenerate soft tissues with bone loss in advanced cases of peri-implantitis. CONCLUSION Due to the difference between peri-implant interface and natural teeth, clinicians and patients should pay more attention in the maintenance and recovery of soft tissues around implants.
Collapse
Affiliation(s)
- Yulan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Richard J Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| |
Collapse
|
184
|
Eick S, Ramseier CA, Rothenberger K, Brägger U, Buser D, Salvi GE. Microbiota at teeth and implants in partially edentulous patients. A 10-year retrospective study. Clin Oral Implants Res 2015; 27:218-25. [DOI: 10.1111/clr.12588] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Sigrun Eick
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Christoph A. Ramseier
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Kathrin Rothenberger
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Urs Brägger
- Department of Reconstructive Dentistry and Gerodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Daniel Buser
- Department of Oral Surgery and Stomatology; School of Dental Medicine; University of Bern; Bern Switzerland
| | - Giovanni E. Salvi
- Department of Periodontology; School of Dental Medicine; University of Bern; Bern Switzerland
| |
Collapse
|
185
|
Jakobi ML, Stumpp SN, Stiesch M, Eberhard J, Heuer W. The Peri-Implant and Periodontal Microbiota in Patients with and without Clinical Signs of Inflammation. Dent J (Basel) 2015; 3:24-42. [PMID: 29567923 PMCID: PMC5851201 DOI: 10.3390/dj3020024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 03/25/2015] [Indexed: 11/29/2022] Open
Abstract
Late implant failures, caused by the inflammation of surrounding tissues are a problem in implant dentistry. The path of bacterial transmission from teeth to implants is not completely understood. Therefore, the purpose of this study was to analyze intraindividual bacterial transmission characterizing subgingival microbiomes in teeth and implants, both in healthy subjects and in those with signs of periodontitis or peri-implantitis. Samples of peri-implant and dental sulcus fluid were collected. To identify the predominant microbiota, amplified fragments of bacterial 16S rRNA gene were separated by single strand conformation polymorphism analysis, sequenced and taxonomically classified. A total of 25 different predominant genera were found in the diseased group and 14 genera in the healthy group. Species richness did not differ significantly between implants, neighboring teeth and teeth with largest probing depth in the diseased group. Additionally, no differences between teeth and implants in the healthy group were detected. In contrast, microbial diversity varied between the different sampling points. Species richness is similar in healthy and diseased sites, but the composition of the bacterial community differed within the individual subjects. The underlying analyses strongly suggest that complete transmission from neighboring teeth to implants is unlikely.
Collapse
Affiliation(s)
| | - Sascha Nico Stumpp
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Strasse 1, Hannover 30625, Germany.
| | - Meike Stiesch
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Strasse 1, Hannover 30625, Germany.
| | - Jörg Eberhard
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Strasse 1, Hannover 30625, Germany.
| | - Wieland Heuer
- Department of Prosthetic Dentistry and Biomedical Materials Science, Hannover Medical School, Carl-Neuberg-Strasse 1, Hannover 30625, Germany.
| |
Collapse
|
186
|
Aziz SR. Hard and soft tissue surgical complications in dental implantology. Oral Maxillofac Surg Clin North Am 2015; 27:313-8. [PMID: 25770889 DOI: 10.1016/j.coms.2015.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This article discusses surgical complications associated with the placement of dental implants, specifically focusing on how they occur (etiology), as well as their management and prevention. Dental implant surgical complications can be classified into those of hard and soft tissues. In general, complications can be avoided with thorough preoperative treatment planning and proper surgical technique.
Collapse
Affiliation(s)
- Shahid R Aziz
- Department of Oral and Maxillofacial Surgery, Rutgers School of Dental Medicine, 110 Bergen Street, Room B854, Newark, NJ 07103, USA.
| |
Collapse
|
187
|
Inhibition of initial bacterial adhesion on titanium surfaces by lactoferrin coating. Biointerphases 2015; 9:029006. [PMID: 24985210 DOI: 10.1116/1.4867415] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Because dental implant abutments are located at transmucosal sites, their surface should inhibit bacterial accumulation to prevent peri-implantitis. The authors examined the effects of human lactoferrin (LF), an antibacterial protein present in saliva, as an antibacterial coating on the titanium surface and evaluated its effects before and after mucin-containing artificial saliva (AS) incubation. In the control group, titanium disks were soaked in distilled water, whereas in the LF group, titanium disks were soaked in LF solution to coat the disks. In the control-AS and LF-AS groups, half of the control and LF disks were incubated with AS. To confirm LF adsorption, the fluorescence intensity of fluorescein isothiocyanate-labeled LF was measured. The LF and LF-AS groups showed significantly higher intensity than the control and control-AS groups (P < 0.01). There was no significant difference between the LF and LF-AS groups (P > 0.05). The amount of adhered Streptococcus gordonii significantly increased by incubation with AS (P < 0.01) and significantly decreased by adsorption of LF (P < 0.01). There was no interaction between the two factors, LF adsorption and AS incubation (P = 0.561). These results suggest that the adsorbed LF inhibited bacterial adhesion following AS incubation. According to qualitative LIVE/DEAD analysis, viable bacteria appeared to be decreased in the presence of LF and SEM observation indicated that altered morphologies increased in LF and LF-AS groups. These results suggest that the adsorbed LF remained on the titanium surface after incubation with AS, and the remaining LF inhibited bacterial adhesion and exhibited bactericidal effects. Therefore, the adsorption of LF on the abutment material appears to be effective in preventing peri-implantitis.
Collapse
|
188
|
Zangrando MS, Damante CA, Sant’Ana AC, Rubo de Rezende ML, Greghi SL, Chambrone L. Long-Term Evaluation of Periodontal Parameters and Implant Outcomes in Periodontally Compromised Patients: A Systematic Review. J Periodontol 2015; 86:201-21. [DOI: 10.1902/jop.2014.140390] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
189
|
Canullo L, Peñarrocha-Oltra D, Covani U, Botticelli D, Serino G, Penarrocha M. Clinical and microbiological findings in patients with peri-implantitis: a cross-sectional study. Clin Oral Implants Res 2015; 27:376-82. [DOI: 10.1111/clr.12557] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2014] [Indexed: 12/21/2022]
Affiliation(s)
- Luigi Canullo
- Private Practice in Rome; Rome; Italy
- Istituto Stomatologico Toscano; Viareggio Italy
| | | | - Ugo Covani
- Istituto Stomatologico Toscano; Viareggio Italy
| | | | - Giovanni Serino
- Specialistic Clinic in Periodontics; Södra Älvsborg Hospital; Borås Sweden
- Research and developments Unit (FOU); Borås Sweden
| | - Miguel Penarrocha
- Oral Surgery; University of Valencia Medical and Dental School; Valencia Spain
| |
Collapse
|
190
|
John G, Sahm N, Becker J, Schwarz F. Nonsurgical treatment of peri-implantitis using an air-abrasive device or mechanical debridement and local application of chlorhexidine. Twelve-month follow-up of a prospective, randomized, controlled clinical study. Clin Oral Investig 2015; 19:1807-14. [DOI: 10.1007/s00784-015-1406-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 01/12/2015] [Indexed: 10/24/2022]
|
191
|
Zhuang LF, Watt RM, Mattheos N, Si MS, Lai HC, Lang NP. Periodontal and peri-implant microbiota in patients with healthy and inflamed periodontal and peri-implant tissues. Clin Oral Implants Res 2014; 27:13-21. [PMID: 25399962 DOI: 10.1111/clr.12508] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2014] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To compare the prevalence and levels of six bacterial pathogens within the subgingival/submucosal microbiota at teeth versus implants with various clinical conditions. MATERIAL AND METHODS Twenty-two Chinese were included. Four subgingival/submucosal sites were selected for microbiological sampling within each subject, that is, (1) healthy peri-implant tissues; (2) peri-implantitis [PPD ≥ 5 mm, presence of bleeding on probing (BOP) and confirmed radiographic bone loss]; (3) healthy gingiva; and (4) periodontitis (PPD ≥4 mm). Subgingival/submucosal plaque was sampled using paper points. Quantitative real-time polymerase chain reaction (q-PCR) was used to quantify six pathogens, including Porphyromonas gingivalis (P.g.), Treponema denticola (T.d.), Aggregatibacter actinomycetemcomitans (A.a.), Fusobacterium nucleatum (F.n.), Prevotella intermedia (P.i.), and Staphylococcus aureus (S.a.). Counts were log10-transformed. RESULTS The most commonly detected species were S. a. and F. n., while A. a. and. P. i. had the lowest detection frequency. The detection frequencies of diseased tooth or implant sites for each of the six target species were either equal to or higher than the respective frequencies at the corresponding healthy sites. There were no statistically significant differences for any of the species or clinical sites (P > 0.05, Cochran's Q test). No statistically significant differences in the bacterial loads were found among the four clinical sites; with the exception of F. nucleatum. This was more abundant in periodontitis sites (P = 0.023, Friedman's 2-way anova). Both periodontal and peri-implant sites, irrespective of their health status, were revealed to harbor S. aureus cells. The log10-transformed loads of S. aureus were approximately 3.5 within each of the clinical sites (P = 0.232). This was the highest of the six species analyzed. CONCLUSIONS Within the same subjects, putative periodontal pathogens were common to both periodontal and peri-implant sites irrespective of health status. The prevalence and levels of P. gingivalis and F. nucleatum were significantly associated with periodontitis, but not with peri-implantitis. A. actinomycetemcomitans was associated with both disease conditions, periodontitis and peri-implantitis, but not with either gingival or mucosal health.
Collapse
Affiliation(s)
- Long-Fei Zhuang
- Implant Dentistry, Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Rory M Watt
- Oral Biosciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Nikos Mattheos
- Implant Dentistry, Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Mi-Si Si
- Department of Oral & Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hong-Chang Lai
- Department of Oral & Maxillofacial Implantology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Niklaus P Lang
- Implant Dentistry, Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China.,School of Dental Medicine, University of Zurich, Zurich, Switzerland.,School of Dental Medicine, University of Bern, Bern, Switzerland
| |
Collapse
|
192
|
Antimicrobial GL13K peptide coatings killed and ruptured the wall of Streptococcus gordonii and prevented formation and growth of biofilms. PLoS One 2014; 9:e111579. [PMID: 25372402 PMCID: PMC4221044 DOI: 10.1371/journal.pone.0111579] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 10/06/2014] [Indexed: 12/14/2022] Open
Abstract
Infection is one of the most prevalent causes for dental implant failure. We have developed a novel antimicrobial peptide coating on titanium by immobilizing the antimicrobial peptide GL13K. GL13K was developed from the human salivary protein BPIFA2. The peptide exhibited MIC of 8 µg/ml against planktonic Pseudonomas aeruginosa and their biofilms were reduced by three orders of magnitude with 100 µg/ml GL13K. This peptide concentration also killed 100% of Streptococcus gordonii. At 1 mg/ml, GL13K caused less than 10% lysis of human red blood cells, suggesting low toxicity to mammalian cells. Our GL13K coating has also previously showed bactericidal effect and inhibition of biofilm growth against peri-implantitis related pathogens, such as Porphyromonas gingivalis. The GL13K coating was cytocompatible with human fibroblasts and osteoblasts. However, the bioactivity of antimicrobial coatings has been commonly tested under (quasi)static culture conditions that are far from simulating conditions for biofilm formation and growth in the oral cavity. Oral salivary flow over a coating is persistent, applies continuous shear forces, and supplies sustained nutrition to bacteria. This accelerates bacteria metabolism and biofilm growth. In this work, the antimicrobial effect of the coating was tested against Streptococcus gordonii, a primary colonizer that provides attachment for the biofilm accretion by P. gingivalis, using a drip-flow biofilm bioreactor with media flow rates simulating salivary flow. The GL13K peptide coatings killed bacteria and prevented formation and growth of S. gordonii biofilms in the drip-flow bioreactor and under regular mild-agitation conditions. Surprisingly the interaction of the bacteria with the GL13K peptide coatings ruptured the cell wall at their septum or polar areas leaving empty shell-like structures or exposed protoplasts. The cell wall rupture was not detected under regular culture conditions, suggesting that cell wall rupture induced by GL13K peptides also requires media flow and possible attendant biological sequelae of the conditions in the bioreactor.
Collapse
|
193
|
Lv H, Chen Z, Yang X, Cen L, Zhang X, Gao P. Layer-by-layer self-assembly of minocycline-loaded chitosan/alginate multilayer on titanium substrates to inhibit biofilm formation. J Dent 2014; 42:1464-72. [DOI: 10.1016/j.jdent.2014.06.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 05/29/2014] [Accepted: 06/04/2014] [Indexed: 12/25/2022] Open
|
194
|
John G, Schwarz F, Becker J. Taurolidine as an effective and biocompatible additive for plaque-removing techniques on implant surfaces. Clin Oral Investig 2014; 19:1069-77. [PMID: 25346373 DOI: 10.1007/s00784-014-1337-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 10/14/2014] [Indexed: 01/28/2023]
Abstract
OBJECTIVES The aim of the present study was the evaluation of the effectiveness and efficiency of two plaque-removing techniques, plastic curettes (PC) and glycine powder airflow (GLY) in combination with taurolidine (T), chlorhexidine (CHX), or pure water (PW) as additives and compared to groups without previous treatment (NT). MATERIALS AND METHODS Plaque was collected on titanium samples for 48 h in six subjects. Specimens were worn in a special splint in the upper jaw and randomly assigned to test and control groups. After biofilm removal procedures, clean implant surface (CIS) on the samples and treatment time were taken as parameters. RESULTS Mean CIS was determined in the following descending order: T-GLY > CHX-GLY > NT-GLY > T-PC > PW-GLY > PW-PC > CHX-PC > NT-PC. Mean treatment time was determined in the following ascending order: T-GLY < CHX-GLY < PW-GLY < NT-GLY < T-PC < CHX-PC < PW-PC < NT-PC. CONCLUSIONS Within the limits of this study, it can be concluded that T showed the highest CIS in the GLY and PC groups. T-GLY showed significantly more CIS than all other GLY groups. The T-PC group showed significantly more CIS than all other PC groups. The treatment times of the T groups were significantly lower than their corresponding PC or GLY groups. CLINICAL RELEVANCE The results of the current study indicate that taurolidine seems to enhance effectiveness of plaque-removing procedures with plastic curettes and glycine powder airflow. Also, the efficiency of both treatment procedures seems to be increased.
Collapse
Affiliation(s)
- Gordon John
- Department of Oral Surgery, Heinrich Heine University, Moorenstr. 5, 40225, Düsseldorf, Germany,
| | | | | |
Collapse
|
195
|
Abstract
Implants are exposed to a diverse oral environment and host responses that contribute to health or disease. For the last few decades, clinicians have relied on standard clinical and radiographic findings to assess the health of implants. However, recent studies involving the pathogenesis of peri-implantitis have identified microbial species and several putative biomarkers that could aid clinicians in this diagnostic process in the near future. This article provides an overview of the microbial species involved in implant health and disease and biomarkers found in oral fluids that relate to the underlying biological phases of a failing implant.
Collapse
Affiliation(s)
- Pinar Emecen-Huja
- Division of Periodontics, Department of Oral Health Practice, College of Dentistry, University of Kentucky, D-440 Dental Science Building, 800 Rose Street, Lexington, KY 40536, USA.
| | - Iquebal Hasan
- Department of Oral Health Practice, College of Dentistry, University of Kentucky, MN320, Lexington, KY 40536-0297, USA
| | - Craig S Miller
- Department of Oral Health Practice, College of Dentistry, University of Kentucky, MN324, Lexington, KY 40536-0297, USA
| |
Collapse
|
196
|
Sánchez M, Llama-Palacios A, Fernández E, Figuero E, Marín M, León R, Blanc V, Herrera D, Sanz M. An in vitro biofilm model associated to dental implants: Structural and quantitative analysis of in vitro biofilm formation on different dental implant surfaces. Dent Mater 2014; 30:1161-71. [DOI: 10.1016/j.dental.2014.07.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 03/26/2014] [Accepted: 07/15/2014] [Indexed: 12/18/2022]
|
197
|
Hallström H, Persson GR, Strömberg U, Twetman S, Renvert S. Reproducibility of subgingival bacterial samples from patients with peri-implant mucositis. Clin Oral Investig 2014; 19:1063-8. [PMID: 25261401 DOI: 10.1007/s00784-014-1324-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 09/15/2014] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The aim of the present study was to investigate the reproducibility of bacterial enumeration from subsequent subgingival samples collected from patients with peri-implant mucositis. MATERIAL AND METHODS Duplicate microbial samples from 222 unique implant sites in 45 adult subjects were collected with paper points and analyzed using the checkerboard DNA-DNA hybridization technique. Whole genomic probes of 74 preselected bacterial species were used. Based on the bacterial scores, Cohen's kappa coefficient was used to calculate the inter-annotator agreement for categorical data. The percentage agreement was considered as "good" when the two samples showed the same score or differed by 1 to the power of 10. RESULTS Moderate to fair kappa values were displayed for all bacterial species in the test panel (range 0.21-0.58). There were no significant differences between Gram-positive and Gram-negative species. The percentage of good agreement between the first and second samples averaged 74.7 % (n = 74; range 56-83 %), while the proportion of poor agreement ranged from 1 to 19 % for the various strains. CONCLUSION While an acceptable clinical agreement was obtained in most cases, diverging bacterial scores may appear in subgingival samples collected at the same time point from patients with peri-implant mucositis. CLINICAL RELEVANCE The broad bulky base of implant crowns may present an obstacle for the collection of reproducible subgingival samples with paper points.
Collapse
Affiliation(s)
- Hadar Hallström
- Department of Periodontology, Faculty of Odontology, Malmö University, SE-20506, Malmö, Sweden,
| | | | | | | | | |
Collapse
|
198
|
Covalent immobilization of hLf1-11 peptide on a titanium surface reduces bacterial adhesion and biofilm formation. Acta Biomater 2014; 10:3522-34. [PMID: 24704699 DOI: 10.1016/j.actbio.2014.03.026] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Revised: 03/19/2014] [Accepted: 03/24/2014] [Indexed: 01/18/2023]
Abstract
Bacterial infection represents a major cause of implant failure in dentistry. A common approach to overcoming this issue and treating peri-implant infection consists in the use of antibiotics. However, the rise of multidrug-resistant bacteria poses serious concerns to this strategy. A promising alternative is the use of antimicrobial peptides due to their broad-spectrum activity against bacteria and reduced bacterial resistance responses. The aim of the present study was to determine the in vitro antibacterial activity of the human lactoferrin-derived peptide hLf1-11 anchored to titanium surfaces. To this end, titanium samples were functionalized with the hLf1-11 peptide either by silanization methods or physical adsorption. X-ray photoelectron spectroscopy analyses confirmed the successful covalent attachment of the hLf1-11 peptide onto titanium surfaces. Lactate dehydrogenase assay determined that hLf1-11 peptide did not affect fibroblast viability. An outstanding reduction in the adhesion and early stages of biofilm formation of Streptococcus sanguinis and Lactobacillus salivarius was observed on the biofunctionalized surfaces compared to control non-treated samples. Furthermore, samples coated with the hLf1-11 peptide inhibited the early stages of bacterial growth. Thus, this strategy holds great potential to develop antimicrobial biomaterials for dental applications.
Collapse
|
199
|
Antibacterial properties of metal and metalloid ions in chronic periodontitis and peri-implantitis therapy. Acta Biomater 2014; 10:3795-810. [PMID: 24704700 DOI: 10.1016/j.actbio.2014.03.028] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 03/07/2014] [Accepted: 03/26/2014] [Indexed: 12/21/2022]
Abstract
Periodontal diseases like periodontitis and peri-implantitis have been linked with Gram-negative anaerobes. The incorporation of various chemotherapeutic agents, including metal ions, into several materials and devices has been extensively studied against periodontal bacteria, and materials doped with metal ions have been proposed for the treatment of periodontal and peri-implant diseases. The aim of this review is to discuss the effectiveness of materials doped with metal and metalloid ions already used in the treatment of periodontal diseases, as well as the potential use of alternative materials that are currently available for other applications but have been proved to be cytotoxic to the specific periodontal pathogens. The sources of this review included English articles using Google Scholar™, ScienceDirect, Scopus and PubMed. Search terms included the combinations of the descriptors "disease", "ionic species" and "bacterium". Articles that discuss the biocidal properties of materials doped with metal and metalloid ions against the specific periodontal bacteria were included. The articles were independently extracted by two authors using predefined data fields. The evaluation of resources was based on the quality of the content and the relevance to the topic, which was evaluated by the ionic species and the bacteria used in the study, while the final application was not considered as relevant. The present review summarizes the extensive previous and current research efforts concerning the use of metal ions in periodontal diseases therapy, while it points out the challenges and opportunities lying ahead.
Collapse
|
200
|
Martínez-Hernández M, Olivares-Navarrete R, Almaguer-Flores A. Influence of the Periodontal Status on the Initial-Biofilm Formation on Titanium Surfaces. Clin Implant Dent Relat Res 2014; 18:174-81. [DOI: 10.1111/cid.12251] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Miryam Martínez-Hernández
- Laboratorio de Biología Periodontal; Facultad de Odontología; Universidad Nacional Autónoma de México; México DF México
| | | | - Argelia Almaguer-Flores
- Laboratorio de Biología Periodontal; Facultad de Odontología; Universidad Nacional Autónoma de México; México DF México
| |
Collapse
|