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Bueno FL, Badaró MM, Pagnano VO, Curylofo PA, Oliveira VDC, Macedo AP, Watanabe E, Paranhos HDFO, Silva-Lovato CH. Effect of disinfectants on multispecies biofilm, the physical and mechanical properties of polymethyl methacrylate, and the corrosion of cobalt chromium alloy. J Prosthet Dent 2024:S0022-3913(24)00446-3. [PMID: 39019725 DOI: 10.1016/j.prosdent.2024.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 07/19/2024]
Abstract
STATEMENT OF PROBLEM The optimal disinfection protocol that controls adverse effects and promotes effective antimicrobial action on removable prostheses is unclear. PURPOSE This in vitro study investigated the effect of disinfectant solutions on the biological, physical, mechanical, and chemical properties of removable prosthesis materials. MATERIAL AND METHODS Specimens of polymethyl methacrylate (PMMA) and cobalt chromium (Co-Cr) alloy were immersed in distilled water (PMMA) or artificial saliva (Co-Cr) as the control and in 0.25% sodium hypochlorite (NaOCl0.25%), 0.5% chloramine T (CT0.5%), and 0.15% Triclosan (TR0.15%). The antibiofilm activity was evaluated by microbial load and cell metabolisms of the mixed biofilm. Physical (color change, sorption, solubility, and surface roughness), mechanical (hardness, flexural, and impact strength), and chemical (corrosion) properties were analyzed before and after simulating a 5-year immersion. Laser confocal microscopy, scanning electron microscopy (SEM), and dispersive energy spectroscopy (EDS) complemented the analyses. The data were analyzed by using the Mann-Whitney U test, Kruskal-Wallis with Dunn posttests, 1-way ANOVA, and repeated measures ANOVA (α=.05). RESULTS All solutions were effective against bacteria, but only NaOCl0.25% eliminated Candida spp. TR0.15%, and CT0.5% increased cell metabolisms. For interaction (time and solution), there was a reduction in PMMA hardness in the control and TR0.15%. Color, sorption, solubility, and flexural strength did not change. CT0.5% and TR0.15% were similar for impact resistance. CT0.5% caused the lowest roughness. NaOCl0.25% showed the greatest corrosive potential. Dark spots were seen under SEM in Co-Cr stored with NaOCl0.25% and TR0.15%. EDS indicated different proportions of oxygen, cobalt, chromium, and molybdenum. CONCLUSIONS NaOCl0.25% had the best antimicrobial action. CT0.5% and TR0.15% have potential. Hardness and roughness changes were clinically acceptable, and the other properties remained unchanged. All the solutions caused color changes. NaOCl0.25% was unsatisfactory for use with Co-Cr, CT0.5% was intermediate, and TR0.15% was suitable.
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Affiliation(s)
- Frank Lucarini Bueno
- PhD student, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Mauricio Malheiros Badaró
- Adjunct Professor, Department of Dentistry, Federal University of Santa Catarina (UFSC), Florianopolis, SC, Brazil.
| | - Valéria Oliveira Pagnano
- Associate Professor, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Patrícia Almeida Curylofo
- PhD student, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Viviane de Cássia Oliveira
- Specialized Laboratory Technician, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Ana Paula Macedo
- Specialized Laboratory Technician, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Evandro Watanabe
- Associate Professor, Department of Restorative Dentistry, School of Dentistry of Ribeirao Preto, University of São Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Helena de Freitas Oliveira Paranhos
- Full Professor, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
| | - Cláudia Helena Silva-Lovato
- Full Professor, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, Brazil
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Kaypetch R, Rudrakanjana P, Tua-Ngam P, Tosrisawatkasem O, Thairat S, Tonput P, Tantivitayakul P. Effects of two novel denture cleansers on multispecies microbial biofilms, stain removal and the denture surface: an in vitro study. BMC Oral Health 2023; 23:852. [PMID: 37951865 PMCID: PMC10640750 DOI: 10.1186/s12903-023-03535-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/12/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND The continuously increasing demand for removable denture appliances and the importance of adequate denture cleaning have led to the development of various denture cleansing products. The aim of this study was to evaluate the efficacy of two novel denture cleansing agents (GE and TM) and three commonly available cleansers (0.5% sodium hypochlorite; NaClO, 0.12% chlorhexidine gluconate; CHX, and Polident®; POL) on multispecies microbial biofilm formation, stain removal and physical properties of dentures. METHODS The antimicrobial activities of denture cleansing agents were determined against major oral opportunistic pathogens including Streptococcus mutans, Staphylococcus aureus, Escherichia coli and Candida albicans, using time-kill assays. Multispecies microbial biofilms grown on acrylic resins for 72 h were generated to determine the antibiofilm effects of cleansing agents by confocal laser scanning microscopy (CLSM). Evaluations of the tea and coffee stain removal properties and the alterations in the physical properties of dentures were also performed. The toxicity of cleanser residues released from denture acrylics to fibroblast cells was investigated using MTT assay. RESULTS All denture cleansing agents tested could effectively kill oral bacteria and Candida albicans. Furthermore, after immersion for more than 3 h, the cleansers Polident®, GE and TM could efficiently penetrate and inhibit multispecies denture biofilms with effects similar to 10 min of immersion in 0.5% NaClO. However, immersion in 0.12% CHX for 20 min showed less antibiofilm activity. The NaClO solution had the highest efficacy for removing stains from the artificial teeth. Conversely, the CHX solution enhanced tea and coffee staining, and the teeth immersed in this solution showed clinically unacceptable colour changes (ΔE > 5.5). However, the colour differences of teeth stained and immersed in POL, GE and TM cleansers were in the clinically acceptable range. There was no significant difference among the POL, GE and TM cleansers in terms of stain removal efficacy. The cleansers GE and TM did not alter the surface roughness and colour of the materials, moreover the residues of both cleansers did not exhibit cytotoxicity. CONCLUSION Two novel denture cleansing agents containing natural products, GE and TM exhibited effective antimicrobial activity, antibiofilm and stain removal capabilities without toxicity or disturbance of the physical properties of acrylics.
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Affiliation(s)
- Rattiporn Kaypetch
- Research office, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | | | - Peerapong Tua-Ngam
- Research office, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Orada Tosrisawatkasem
- Department of Oral Microbiology, Faculty of Dentistry, Mahidol University, 6 Yothi Street, Rajthevi, Bangkok, 10400, Thailand
| | - Sarut Thairat
- Research office, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Pairin Tonput
- Research office, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - Pornpen Tantivitayakul
- Department of Oral Microbiology, Faculty of Dentistry, Mahidol University, 6 Yothi Street, Rajthevi, Bangkok, 10400, Thailand.
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AlGhamdi AS, Alotaibi B, Alsalhi H, Aljuailan RI, Barakat A. Photo-induced photoacoustic streaming and pineapple peel extract as final irrigant on extrusion bond strength of root filling material to canal wall. Pak J Med Sci 2023; 39:983-987. [PMID: 37492341 PMCID: PMC10364286 DOI: 10.12669/pjms.39.4.7370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/06/2023] [Accepted: 03/26/2023] [Indexed: 07/27/2023] Open
Abstract
Objective Photon-induced photoacoustic streaming (PIPS) with pineapple peel extract (PPE) and ethylenediaminetetraacetic acid (EDTA) as a final endodontic irrigant on the push-out bond strength (PBS) of root filling material to conventional irrigation NaOCl with EDTA. Methods An in vitro study at Dar Al Uloom University was conducted over three months. Root canal preparation was performed. Based on final irrigation, all the specimens were divided randomly into four groups (n=10) Group 1: 2.25% NaOCl+ 17% EDTA (control), Group-2: 2.25% NaOCl+PIPS + 6.25% PPE, Group-3: 2.25% NaOCl+PIPS + 17% EDTA, Group-4: 2.25% NaOCl + 6.25% PPE. Canals were obturated and sealed with AH Plus sealer. Root sectioning was performed at 1mm thickness and PBS testing was performed using the universal testing machine. The debonded samples were analyzed for failure mode. ANOVA compared the means and standard deviations (SD) of all investigated group. Assessment of multiple comparisons was performed using Tukey's post hoc test. Results The maximum PBS was demonstrated by the coronal section of Group-2 (2.25%NaOCl +PIPS+6.25%PPE) specimens (8.21±0.81MPa). The apical section of Group-1 (2.25% NaOCl+17% EDTA) specimens demonstrated minimum bond strength (2.80±0.18 MPa). The intergroup comparison revealed that Group-3 (2.25% NaOCl +PIPS +17% EDTA) and Group-2 demonstrated comparable outcomes (p>0.05). Group-4 (2.25% NaOCl +6.25% PPE) specimens established significantly lower values than Group-3 and Group-4 (p<0.05). Conclusion Photon-induced photoacoustic streaming with pineapple peel extract and EDTA demonstrated better bond strength of root canal sealer and have the potential to be used as the final irrigant.
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Affiliation(s)
- AbdulRahman Saeed AlGhamdi
- AbdulRahman Saeed AlGhamdi, Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia
| | - Badi Alotaibi
- Badi Alotaibi, Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Al-Mulayda, Qassim, Saudi Arabia
| | - Hanin Alsalhi
- Hanin Alsalhi, Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Al-Mulayda, Qassim, Saudi Arabia
| | - Roqayah Ibrahim Aljuailan
- Roqayah Ibrahim Aljuailan, Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Al-Mulayda, Qassim, Saudi Arabia
| | - Ali Barakat
- Ali Barakat, Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia
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Gogula SR, Manivasakan S, Livingstone D, Madaan J. Sargassum polycystum and Turbinaria conoides Seaweed-based Novel Denture Cleanser: An In Vitro Study. J Contemp Dent Pract 2023; 24:261-267. [PMID: 37469266 DOI: 10.5005/jp-journals-10024-3498] [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] [Indexed: 07/21/2023]
Abstract
AIM The study ventures into evaluating the antifungal and antibacterial efficacy of commercially available denture cleanser with Sargassum polycystum, Turbinaria conoides seaweeds, and the combination of seaweeds. MATERIALS AND METHODS Poly(methyl methacrylate) disks measuring 10 × 2 mm were fabricated. The samples are divided into four groups of 21 samples each. The denture base was coated with Candida albicans and Streptococcus mutans individually. Group I was treated with Fittydent, group II (S. polycystum and T. conoides seaweeds combination), group III (S. polycystum), and group IV (T. conoides). The colony-formation units present on the surface of the denture were evaluated before and after treatment with different denture cleansers using the serial dilution method. Statistical analysis was done using descriptive statistics, analysis of variance, and post hoc Bonferroni analysis. RESULTS At 10-5 dilution, T. conoides (group IV) was statistically significant in reducing both C. albicans and S. mutans. At 10-10 dilution, T. conoides (group IV) and S. polycystum and T. conoides combination (group II) had high antibacterial efficacy and were statistically significant. Fittydent (group I) had higher antifungal efficacy and was statistically significant in comparison to S. polycystum (group III) alone. At 10-10 dilution, the T. conoides (group IV), S. polycystum, and T. conoides combination (group II) showed no evidence of a significant difference in comparison to Fittydent (group I). Fittydent had higher antibacterial efficacy and was statistically significant in comparison to S. polycystum (group III) alone. CONCLUSION Sargassum polycystum and T. conoides combination and T. conoides were found to have higher antibacterial efficacy in comparison to commercially available denture cleanser and also were found to have equal antifungal efficacy in comparison to commercially available denture cleanser.
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Affiliation(s)
- Sree Roopa Gogula
- Department of Prosthodontics, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, Puducherry, India
| | - Shivasakthy Manivasakan
- Department of Prosthodontics, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, Puducherry, India, Phone: +91 9940724320, e-mail:
| | - David Livingstone
- Department of Prosthodontics, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, Puducherry, India
| | - Jahnavi Madaan
- Department of Prosthodontics, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, Puducherry, India
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Alfouzan AF, Tuwaym M, Aldaghri EN, Alojaymi T, Alotiabi HM, Taweel SMA, Al-Otaibi HN, Ali R, Alshehri H, Labban N. Efficacy of Denture Cleansers on Microbial Adherence and Surface Topography of Conventional and CAD/CAM-Processed Denture Base Resins. Polymers (Basel) 2023; 15:polym15020460. [PMID: 36679340 PMCID: PMC9866049 DOI: 10.3390/polym15020460] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/06/2023] [Accepted: 01/11/2023] [Indexed: 01/19/2023] Open
Abstract
This study assessed the efficacy of five denture cleansers on the microbial adherence and surface topography of conventional and CAD/CAM denture base resins. Acrylic resin discs were fabricated using conventional, milling, and 3D printing methods (N = 180). The discs were contaminated with dual species of Candida albicans and Streptococcus mutans biofilm for 72 h and then disinfected with either of the denture cleansers (Fittydent cleansing tablets, 2% Chlorhexidine gluconate, 0.2% Chlorhexidine gluconate, 0.5% sodium hypochlorite, and 1% sodium hypochlorite (n = 10). Distilled water served as the control group. The colony-forming units of the microorganisms were calculated, followed by post-treatment surface roughness. Data were statistically analyzed using one-way ANOVA, paired t-test, and post hoc Tukey HSD test (α = 0.05). Among the denture cleansers, 2% Chlorhexidine gluconate, 0.5% sodium hypochlorite, and 1% sodium hypochlorite had the best cleansing effect on the resin discs and demonstrated zero growth of colonies for both the species. Comparing the material groups, the 3D-processed discs showed higher colony-forming units followed by the conventional and CAD/CAM milled group. The highest surface roughness was demonstrated by the 3D-printed discs (0.690 ± 0.08 μm), followed by the conventional (0.493 ± 0.11 μm) and the milled groups (0.301 ± 0.08 μm). The tested chemical denture cleansers affected the Candida albicans and Streptococcus mutans adhesion compared to control discs immersed in distilled water. The clinician may recommend to their patient to use 2% chlorhexidine gluconate for the disinfection of CAD/CAM PMMA denture base materials.
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Affiliation(s)
- Afnan F. Alfouzan
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
- Correspondence:
| | - Malath Tuwaym
- College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia
| | - Ebtihal N. Aldaghri
- College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia
| | - Tagreed Alojaymi
- College of Dentistry, King Saud University, P.O. Box 60169, Riyadh 11545, Saudi Arabia
| | - Hadeel Minife Alotiabi
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh 14611, Saudi Arabia
| | - Sara M. Al Taweel
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Hanan N. Al-Otaibi
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Rizwan Ali
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh 14611, Saudi Arabia
| | - Huda Alshehri
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Nawaf Labban
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
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De Souza R, Chaves C, Rohani K, Bouferguene S, Barbeau J, Borie E, Weber B, Fuentes R, Crizostomo L, Silva-Lovato C, Emami E. Palatal brushing for the treatment of denture stomatitis: A multicentre randomized controlled trial. J Prosthodont Res 2023; 67:93-102. [PMID: 35264510 DOI: 10.2186/jpr.jpr_d_21_00258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
PURPOSE To determine the effectiveness of palatal brushing in the treatment of denture-related erythematous stomatitis (DES) in complete denture wearers. METHODS This two-parallel-arm RCT was conducted in three university clinics in Brazil, Canada, and Chile. Participants (n=77) were randomly allocated to receive (i) instructions for palatal brushing and standard oral/denture hygiene ("intervention"); or (ii) standard oral/denture hygiene instructions only ("control"). Data collection was carried out at the baseline and at 3 and 6 months after intervention. Outcomes included the magnitude of oral Candida carriage and the degree of inflammation of denture-bearing tissues. Groups were compared using generalized estimating equations and chi-square test (α=0.05). RESULTS Palatal inflammation levels were reduced significantly in the "intervention" compared to "control" group at 6 months (intervention: 70%, control: 40%; chi-square, p=0.04). There was no between-group significant difference in the Candida count from denture and palatal biofilms; however, a subgroup analysis restricted to baseline Candida carriers showed further reduction with the intervention at 6 months. No adversity was observed by trialist or reported by participants. CONCLUSIONS Including palatal brushing in oral instructions for denture wearers has positive impact on DES-related mucosal inflammation. Thus, our findings endorse the inclusion of palatal brushing in standard oral hygiene instructions to treat DES.
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Affiliation(s)
- Raphael De Souza
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
| | - Carolina Chaves
- Faculté de Médecine Dentaire, Université de Montréal, Montreal, Canada
| | - Kimia Rohani
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
| | - Sabrina Bouferguene
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
| | - Jean Barbeau
- Faculté de Médecine Dentaire, Université de Montréal, Montreal, Canada
| | - Eduardo Borie
- CICO Research Centre, Integral Dentistry of Adults Department, Faculty of Dentistry, Universidad de la Frontera, Temuco, Chile
| | - Benjamin Weber
- CICO Research Centre, Integral Dentistry of Adults Department, Faculty of Dentistry, Universidad de la Frontera, Temuco, Chile
| | - Ramon Fuentes
- CICO Research Centre, Integral Dentistry of Adults Department, Faculty of Dentistry, Universidad de la Frontera, Temuco, Chile
| | - Luciana Crizostomo
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Claudia Silva-Lovato
- Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Elham Emami
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
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Hayashi H, Naiki Y, Murakami M, Oishi A, Takeuchi R, Nakagawa M, Kimoto S, Hasegawa Y, Araki A. Effects of cleaning sports mouthguards with ethylene-vinyl acetate on oral bacteria. PeerJ 2022; 10:e14480. [PMID: 36523462 PMCID: PMC9745906 DOI: 10.7717/peerj.14480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/07/2022] [Indexed: 12/07/2022] Open
Abstract
Background Sports mouthguards, worn in the oral cavity to prevent sports injuries, are constantly exposed to various microorganisms that cause oral infections. Hence, the optimal cleaning methods for sports mouthguards have been thoroughly examined. In this study, we evaluated the efficiency of cleaning effects with a mouthguard cleaner (MC) on microbial biofilm formation in sports mouthguards in vitro and in vivo. Methods We evaluated the cleaning effects of the discs produced by ethylene-vinyl acetate (EVA) on bacterial biofilms formed by the commensal bacterium Streptococcus oralis, the cariogenic bacterium Streptococcus mutans, and the opportunistic pathogen Staphylococcus aureus in vitro. EVA discs with biofilm were subjected to sterile distilled water (CTRL) and ultrasonic washing (UW), followed by treatment with MC and sodium hypochlorite (NaClO) as positive controls. Thereafter, the viable bacterial cell counts were determined. The bacteria adhering to the sheets before and after the treatment were observed under an electron microscope. The degree of cleanliness and measurement of viable microbial cell counts for total bacteria, Streptococci and Candida, opportunistic fungi, were evaluated on the used experimental sports mouthguards with and without UW and MC treatment in vivo. Results The number of bacterial cells significantly decreased against all the tested biofilm bacteria upon treatment with MC, compared with CTRL and UW. Electron microscopy analysis revealed the biofilm formation by all bacteria on the EVA discs before cleaning. We observed fewer bacteria on the EVA discs treated with MC than those treated with CTRL and UW. Furthermore, the degree of cleanliness of the used experimental sports mouthguards cleaned using MC was significantly higher than that of the CTRL-treated mouthguards. Moreover, the viable microbial cell counts on the used experimental sports mouthguard were considerably lower than those on the CTRL ones. Conclusion The cleaning effect of MC against oral bacteria was more effective than that of UW. MC treatment might have a potential future application as a cleaning method for sports mouthguards to protect athletes from oral infection.
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Affiliation(s)
- Hiroki Hayashi
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan,Department of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Yoshikazu Naiki
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Masahiro Murakami
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan,Department of Gerodontology and Home Care Dentistry, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Akihiro Oishi
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Rihoko Takeuchi
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan,Department of Gerodontology and Home Care Dentistry, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Masayoshi Nakagawa
- Department of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Suguru Kimoto
- Department of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan,Department of Gerodontology and Home Care Dentistry, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Yoshiaki Hasegawa
- Department of Microbiology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Akizumi Araki
- Department of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
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Alzahrani KM, Alrabiah M, AlAali KA, Vohra F, Abduljabbar T. Fracture strength of Er,Yag laser treated PMMA denture-based polymer (DBP) colonized with C. albicans, S. aureus, S.mutans, and E.coli. Photodiagnosis Photodyn Ther 2022; 40:103074. [PMID: 36028171 DOI: 10.1016/j.pdpdt.2022.103074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/17/2022] [Accepted: 08/22/2022] [Indexed: 12/14/2022]
Abstract
AIM To assess and equate the efficacy of different disinfection protocols autoclave, chlorhexidine (CHX), PDT utilizing Rose Bengal (RB), chitosan, and Er, Yag laser and their effect on fracture strength of PMMA denture-based polymer (DBP) colonized with C. Albicans, S. aureus, S.mutans, and E.coli. MATERIAL AND METHODS A total of 50 (n = 10) PMMA DBP were manufactured and adulterated with the American Type Culture Collection (ATCC) of diverse microbial colonies inhabited by C. Albicans, S. aureus, S.mutans, and E.coli. The specimens were subjected to different denture disinfection approaches by randomly distributing in into five groups i.e., Er, Yag laser, RB, autoclave, CHX, and Chitosan, respectively for appraising antimicrobial effectiveness. PMMA fracture load was also assessed and statistical analysis was performed for CFU/mL (log10) of exposed C. Albicans, S. aureus, S.mutans, and E.coli by one-way ANOVA and Tukey's multiple comparison test at a significance level of p < 0.05. RESULTS Intergroup comparison disclosed that denture disinfection with Er, Yag laser, autoclave, Chitosan, and CHX (control) validated comparable antimicrobial efficacy to denture against all inspected CFU/mL (log10) (p>0.05). The intragroup comparison revealed that DBP sanitization with Er, Yag laser, autoclave, Chitosan, RB, and CHX substantiated equivalent effective antimicrobial efficacy in plummeting CFU/mL (log10) of S. mutans and E. coli (p>0.05) but in consideration to S.aureus and C.albicans, all groups resulted in declining their count except 5µm RB activated by PDT(p < 0.05). No significant difference was perceived in fracture load of PMMA denture base among Er, Yag laser, RB, chitosan, and CHX (control) (p > 0.05) except autoclave decontamination procedure that indicated the least fracture strength of DBP when disinfected (p < 0.05). CONCLUSION Er, Yag laser, and Chitosan activated by PDT have the potential to be used as an alternative to chlorhexidine for disinfecting Polymethyl methacrylate denture base as they demonstrated the highest antimicrobial efficacy against E. coli, C. Albicans, S aureus, and S. mutans with optimal fracture load.
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Affiliation(s)
- Khaled M Alzahrani
- Department of Prosthetic Dental Sciences, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Mohammed Alrabiah
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, P. O. Box 60169, Riyadh 11545, Saudi Arabia
| | - Khulud A AlAali
- Department Of Clinical Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, P. O. Box 60169, Riyadh 11545, Saudi Arabia
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, P. O. Box 60169, Riyadh 11545, Saudi Arabia.
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Noorollahian S, Tabibi A. The effect of hydrochloric acid and sodium hypochlorite on fracture resistance of orthodontic self-cure acrylic base. Dent Res J (Isfahan) 2022; 19:74. [PMID: 36407776 PMCID: PMC9667494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/10/2021] [Accepted: 09/15/2021] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Patient cooperation is necessary for treatment success in removable orthodontics. Every factor has an adverse effect on appliances appearance can impede appliance wearing. This study investigated the effect of immersion in household cleaner and bleach liquids on fracture resistance of self-cure orthodontic acrylic resins. MATERIALS AND METHODS This in vitro study two orthodontic acrylic resins (Megadental® and Acropars®) were used. Eighty identical acrylic samples (50 mm × 5 mm × 3 mm) from each acrylic resin were fabricated and divided into four groups (n = 20). For each type of acrylic resin; Group 1: 15 min immersion in household cleaner liquid (hydrochloric acid [HCl], 10%), 1 min rinsing with running water, 15 min immersion in household bleach liquid (sodium hypochlorite [NaOCl], 5.25%) and 1 min rinsing with running water were done. For Group 2, two times and for Group 3, three times immersion just like Group 1, were done. Group 4, as control, had no immersion. Fracture resistance of samples was measured with universal testing machine (Instron) in 3-point bending set-up. Data were analyzed with two-way repeated measurement ANOVA. Significance level was set at 0.05. RESULTS Fracture resistance of Acropars groups was greater than counterpart Megadental ones (P < 0.001). Immersion factor, alone (P = 0.375) and in combination with material (P = 0.603), did not make a significant difference among fracture resistance of each acrylic resin groups. CONCLUSION 15 min immersion in household cleaner liquid (HCl acid) followed by 15 min immersion in household bleach liquid (NaOCl 5.25%) and even 3 times repetition of this process had not significant adverse effect on fracture resistance of acrylic resins.
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Affiliation(s)
- Saeed Noorollahian
- Department of Orthodontics, Dental Implants Research Center, Dental Research Institute, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Atefeh Tabibi
- Department of Orthodontics, Faculty of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
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10
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Abstract
Dentures are an excellent treatment modality for partial and edentate patients; however, improper denture care and hygiene can result in both decreased longevity of the prosthesis and increased risk of developing dental caries, periodontal disease and oral candidosis. Previously, it has been shown that patients and dental professionals are unaware of the different materials and methods available for optimum denture care and hygiene. This article provides an overview of the key legislation and main commercially available methods for denture cleanliness and hygiene, and serves as a basis for providing tailored denture hygiene for denture wearers. Patients typically demonstrate poor levels of denture hygiene which impacts oral health. Denture hygiene instructions comprise mechanical and chemical methods; both should be tailored to the denture wearer. Denture base and denture teeth materials had different compatibility with different denture cleaning methods.
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11
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AlHamdan EM. Soft Denture liner and microbial disinfection with contemporary and conventional agents. Photodiagnosis Photodyn Ther 2022; 38:102768. [PMID: 35183780 DOI: 10.1016/j.pdpdt.2022.102768] [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: 02/06/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 10/19/2022]
Abstract
AIM The present study aimed to assess the effect of PDT, herbal and chemical disinfectants on the dental pathogen adherence to soft denture liner colonized with E. coli, C. Albicans, S.aureus, and S. mutans. MATERIAL AND METHODS A total of 20 samples of soft-lined removable acrylic complete dentures were fabricated and subjected to the American Type Culture Collection (ATCC) for the inoculation of E.coli, C.albicans, S.mutans and S.aureus in an in-vitro setup. The samples were then randomly divided into four groups and immersed in group 1: 5 µm of Rose Bengal (RB), group 2: Neem extract, group 3: Tea tree oil (TTO), and group 4: 0.12% CHX solutions respectively. Statistical analysis was accomplished by the SPSS 10 statistical software for Windows at a significance level p< 0.05. Two-way ANOVA and Tukey's multiple comparison test were used to analyze the data and compare the means and standard deviation values of CFU/mL (log10) for exposed E. coli, C. albicans, S aureus, and S. mutans. RESULTS Intragroup comparison indicated E.coli and C.albicans did not unveil a decrease in reduction CFU/mL (log10) when SDL irradiated with RB 5 µm. Whereas, CFU/mL (log10) values of S.aureus; 2.62±0.68 CFU/mL and S.mutans: 3.41±0.13 CFU/mL plunged significantly (p<0.05). Likewise, S. aureus and S. mutans CFU/mL (log10) strain values display reduction when treated with all four disinfectants while the count of C.albicans unveiled a significant plunge with CHX, TTO and neem extract except RB (p<0.05) CONCLUSION: 0.12% CHX and TTO have enhanced antimicrobial efficacy in reducing adhered bacterial colonies of E.coli, C.albicans, S.aureus, and S.mutans (CFU)/mL on a denture soft liner.
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Affiliation(s)
- Eman M AlHamdan
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
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12
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Tulbah HI. Anticandidal efficacy on Polymide based denture resin using Photodynamic therapy, chemical and herbal disinfectants and their effect on surface roughness and hardness. Photodiagnosis Photodyn Ther 2022; 39:102874. [DOI: 10.1016/j.pdpdt.2022.102874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 10/18/2022]
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13
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Bacterial biofilms and their resistance mechanisms: a brief look at treatment with natural agents. Folia Microbiol (Praha) 2022; 67:535-554. [DOI: 10.1007/s12223-022-00955-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 01/29/2022] [Indexed: 12/14/2022]
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14
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Moraes GS, Albach T, Sugio CY, de Oliveira FB, Neppelenbroek KH, Urban VM. Experimental animal models for denture stomatitis: A methodological review. Lab Anim 2022; 56:331-343. [PMID: 35072576 DOI: 10.1177/00236772211069249] [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: 11/15/2022]
Abstract
Denture stomatitis is the most prevalent form of oral candidiasis and the most frequent oral lesion in removable prosthesis wearers. It is characterized by an inflammatory response of the denture-bearing mucosa, especially the palatal mucosa, and its clinical signs include chronic edema and erythema, and papillary hyperplasia. Despite having a multifactorial etiology, its main etiological agent is the infection by Candida albicans. Given its high treatment failure rates, an in vivo model of denture stomatitis should be established to test alternative treatments. The aim of this study is to review the existing denture stomatitis models and to provide an overview of the main methodological differences between them. Over the last 40 years, different animal models were developed in order to study denture stomatitis etiopathogenesis and to assess novel therapies. Many approaches, including the use of antibiotics and immunosuppressors, have to be further investigated in order to establish which protocol is more appropriate and effective for the development of an animal model of denture stomatitis.
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Affiliation(s)
- Gustavo S Moraes
- Department of Dentistry, 67883State University of Ponta Grossa, State University of Ponta Grossa, Brazil
| | - Thaís Albach
- Department of Dentistry, 67883State University of Ponta Grossa, State University of Ponta Grossa, Brazil
| | - Carolina Yc Sugio
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Brazil
| | - Fabio B de Oliveira
- Department of Dentistry, 67883State University of Ponta Grossa, State University of Ponta Grossa, Brazil
| | - Karin H Neppelenbroek
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry, University of São Paulo, Brazil
| | - Vanessa M Urban
- Department of Dentistry, 67883State University of Ponta Grossa, State University of Ponta Grossa, Brazil
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Comparing the Antifungal Effect of Sodium Hypochlorite Gel versus Different Types of Root Canal Medicaments at Different Time Intervals Using the Agar Diffusion Test: An In Vitro Study. Int J Dent 2021; 2021:6550054. [PMID: 34938336 PMCID: PMC8687846 DOI: 10.1155/2021/6550054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022] Open
Abstract
Aims The purpose of this study was to compare the antifungal activity of sodium hypochlorite gel to those of four intracanal medicaments at various time intervals. Materials and Methods The agar well diffusion technique was utilized to test the antifungal activity of the following medicaments against Candida albinans (C. albicans): sodium hypochlorite gel, chlorhexidine gel, calcium hydroxide paste, Ledermix, and Diapex Plus. The inhibition zone related to each medicine was measured in millimeter after 24, 48, and 72 hours of incubation at 37°C. The data were analyzed using one-way ANOVA and Games–Howell tests, at a significance level of P < 0.05. Results Except for Ledermix and Diapex Plus, which had no antifungal action, all of the medicaments showed varied inhibitory zones for C. albicans. At all periods, the NaOCl gel had the most significant inhibition zones, followed by the CHX gel and calcium hydroxide. At all time intervals, the NaOCl gel demonstrated comparable antifungal efficacy. When compared to a 24-hour time interval, the CHX gel showed an increased antifungal activity at the 48-hour and 72-hour intervals. Calcium hydroxide, on the other hand, showed a decrease in its antifungal activity at the 72-hour interval. Conclusion The antifungal activity of sodium hypochlorite gel was the highest among the investigated medicaments. Chlorhexidine gel's antifungal activity improved over time, whereas calcium hydroxide's antifungal activity declined. Diapex Plus and Ledermix did not have any antifungal properties.
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Schmutzler A, Rauch A, Nitschke I, Lethaus B, Hahnel S. CLEANING OF REMOVABLE DENTAL PROSTHESES - A SYSTEMATIC REVIEW. J Evid Based Dent Pract 2021; 21:101644. [PMID: 34922732 DOI: 10.1016/j.jebdp.2021.101644] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 09/19/2021] [Accepted: 09/26/2021] [Indexed: 10/20/2022]
Abstract
Objectives The aim of this systematic review was to provide an overview of the scientific evidence available from prospective clinical studies regarding denture hygiene interventions. Therefore, investigations addressing the efficacy of removing microorganisms and biofilms formed on the surface of removable dental prostheses (RDPs) and denture base materials in situ and their impact on the properties of denture base materials, such as color stability, surface roughness, and dimensional stability, were included. Methods A systematic literature search was conducted from June 1975-May 2020 and included articles published in English that have been indexed in the digital archives of PubMed and Cochrane (including PubMed, Embase, ICTRP, CT.gov). A complementary manual search of the initially retrieved studies was conducted. Inclusion criteria comprised prospective clinical trials with a minimum of ten participants investigating (1) approaches and methods to remove biofilms formed on the surface of RDPs and denture base materials in situ and/or (2) the influence of these biofilms on denture base materials. A total of forty-four studies were included in this systematic review, which was registered in the PROSPERO database (CRD42020189649). Results and Conclusions Data gathered from the systematic review indicate that the combined use of chemical and mechanical denture hygiene interventions is significantly more effective than single cleaning approaches. Only limited evidence is available from clinical studies regarding the effect of denture hygiene interventions on the properties of denture base materials.
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Affiliation(s)
- Anne Schmutzler
- Department of Prosthetic Dentistry and Dental Materials Science, University of Leipzig, Leipzig, Germany.
| | - Angelika Rauch
- Department of Prosthetic Dentistry and Dental Materials Science, University of Leipzig, Leipzig, Germany
| | - Ina Nitschke
- Department of Prosthetic Dentistry and Dental Materials Science, University of Leipzig, Leipzig, Germany; Clinic of General, Special Care and Geriatric Dentistry, University of Zurich, Zürich, Switzerland
| | - Bernd Lethaus
- Department of Oral and Maxillofacial Surgery, University of Leipzig, Leipzig, Germany
| | - Sebastian Hahnel
- Department of Prosthetic Dentistry and Dental Materials Science, University of Leipzig, Leipzig, Germany
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Furquim Dos Santos Cardoso V, Amaral Roppa RH, Antunes C, Silva Moraes AN, Santi L, Konrath EL. Efficacy of medicinal plant extracts as dental and periodontal antibiofilm agents: A systematic review of randomized clinical trials. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114541. [PMID: 34416298 DOI: 10.1016/j.jep.2021.114541] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/11/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The presence of biofilm in oral cavity is associated with dental plaque and related diseases, including gingivitis, periodontitis and inflammatory responses. Some medicinal plants traditionally used for biofilm-associated pathologies such as Camellia sinensis (L.) Kuntze, Punica granatum L. and Lippia sidoides Cham. are currently incorporated into dosage forms as antiplaque agents. AIMS OF THE STUDY To present the current application of medicinal plant extracts associated in drug dosages to control microbial biofilms, with emphasis on those present in the oral cavity, especially to treat dental plaque. MATERIALS AND METHODS A PRISMA-compliant systematic search was conducted using the PubMed, Web of Science and Scopus databases. After the abstract and full-text analysis, the Cochrane Collaboration's tools for clinical studies was applied to assess the methodological quality of randomized clinical trials. RESULTS Of 964 potentially eligible studies, 47 studies met the inclusion criteria and were included in the systematic review. Camellia sinensis was the most commonly used species (8 studies), with positive results in reducing both the PI and GI in the form of mouthwash, toothpaste and gel. The Melaleuca alternifolia oil (5 studies) demonstrated low reduction in PI but important effects on GI scores. Azadirachta indica (4 studies) extracts presented efficacy similar to CHX to improve the periodontal parameters, including PI and GI. Ricinus communis oil (3 studies), despite reducing microbiological counts and GI, did not prove to be better than the hypochlorite solution, used as an alternative treatment for dentures. The main bioactive compounds described for the plant species are polyphenols, essential oils and alkaloids, most of them with identified antibiofilm activities. CONCLUSIONS These active species could lead to future development of safer and newer treatments for oral biofilm-associated infections. However, more studies are needed to further understand the clinical relevance of their application.
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Affiliation(s)
| | - Ricardo Haack Amaral Roppa
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Carolina Antunes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Amanda Naiara Silva Moraes
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Lucélia Santi
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Eduardo Luis Konrath
- Departamento de Produção de Matéria-Prima, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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18
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Badaró MM, Bueno FL, Makrakis LR, Araújo CB, Oliveira VDC, Macedo AP, Paranhos HDFO, Watanabe E, Silva-Lovato CH. Action of disinfectant solutions on adaptive capacity and virulence factors of the Candida spp. biofilms formed on acrylic resin. J Appl Oral Sci 2021; 29:e20210024. [PMID: 34495107 PMCID: PMC8425898 DOI: 10.1590/1678-7757-2021-0024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/19/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Understanding the behavior of Candida spp. when exposed to denture disinfectants is essential to optimize their effectiveness. Changes in the virulence factors may cause increased resistance of Candida spp. to disinfectant agents. OBJECTIVE To evaluate the microbial load, cellular metabolism, hydrolytic enzyme production, hyphae formation, live cell and biofilm quantification of Candida albicans, Candida tropicalis and Candida glabrata after exposure to disinfectant solutions. METHODOLOGY Simple biofilms were grown on heat-polymerized acrylic resin specimens, and divided into groups according to solutions/strains: distilled water (control); 0.25% sodium hypochlorite (NaOCl 0.25% ); 10% Ricinus communis (RC 10%); and 0.5% Chloramine T (CT 0.5%). The virulence factors were evaluated using the CFU count (microbial load), XTT method (cell metabolism), epifluorescence microscopy (biofilm removal and live or dead cells adhered), protease and phospholipase production and hyphae formation. Data were analyzed (α=0.05) by one-way ANOVA/ Tukey post hoc test, Kruskal-Wallis test and Wilcoxon test. RESULTS NaOCl 0.25% was the most effective solution. CT 0.5% reduced the number of CFUs more than RC 10% and the control. RC 10% was effective only against C. glabrata. RC 10% and CT 0.5% decreased the cellular metabolism of C. albicans and C. glabrata. Enzyme production was not affected. Hyphal growth in the RC 10% and CT 0.5% groups was similar to that of the control. CT 0.5% was better than RC 10% against C. albicans and C. tropicalis when measuring the total amount of biofilm and number of living cells. For C. glabrata, CT 0.5% was equal to RC 10% in the maintenance of living cells; RC 10% was superior for biofilm removal. CONCLUSIONS The CT 0.5% achieved better results than those of Ricinus communis at 10%, favoring the creation of specific products for dentures. Adjustments in the formulations of RC 10% are necessary due to efficacy against C. glabrata. The NaOCl 0.25% is the most effective and could be suitable for use as a positive control.
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Affiliation(s)
- Mauricio Malheiros Badaró
- Universidade Federal de Santa Catarina (UFSC), Departamento de Odontologia, Florianópolis, SC, Brasil
| | - Frank Lucarini Bueno
- Universidade José do Rosário Vellano (UNIFENAS), Departamento de Odontologia, Alfenas, MG, Brasil
| | - Lais Ranieri Makrakis
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Camila Borba Araújo
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Viviane de Cássia Oliveira
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Ana Paula Macedo
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Helena de Freitas Oliveira Paranhos
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Evandro Watanabe
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Odontologia Restauradora, Ribeirão Preto, SP, Brasil
| | - Cláudia Helena Silva-Lovato
- Universidade de São Paulo (USP), Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
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Rocha MM, Carvalho AM, Coimbra FCT, Arruda CNFD, Oliveira VDC, Macedo AP, Silva-Lovato CH, Pagnano VO, Paranhos HDFO. Complete denture hygiene solutions: antibiofilm activity and effects on physical and mechanical properties of acrylic resin. J Appl Oral Sci 2021; 29:e20200948. [PMID: 34495105 PMCID: PMC8425897 DOI: 10.1590/1678-7757-2020-0948] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/18/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Appropriated denture hygiene is a predictive factor for longevity of rehabilitation treatment and maintenance of the oral mucosal health. Although, disinfectant solutions are commonly used as denture cleansers, the impact of these solutions on acrylic resin-based dentures remain unclear. OBJECTIVE To evaluate, in vitro, the antibiofilm activity of complete denture hygiene solutions and their effects on physical and mechanical properties of acrylic resin. METHODOLOGY For antibiofilm activity measurement acrylic resin specimens were contaminated with Candida albicans, Candida glabrata and Streptococcus mutans. After biofilm growth, the specimens were assigned to the hygiene solutions: Distilled water (Control); 0.2% Sodium hypochlorite (SH); Efferdent Power Clean Crystals (EPC) and 6.25% Ricinus communis (RC). The viability of microorganisms was evaluated by agar plate counts. In parallel, physical, and mechanical properties of the acrylic resin were evaluated after simulating a 5-year period of daily immersion in the previously mentioned solutions. The changes in surface roughness, color, microhardness, flexural strength, impact strength, sorption and solubility were evaluated. Data were compared by ANOVA followed by the Tukey test or Kruskal-Wallis followed by the Dunn test depending on the distribution (α=0.05). RESULTS Regarding antibiofilm action, SH eliminated all microorganisms while EPC and RC exhibited moderate action against S. mutans (p=0.001) and C. glabrata (p<0.001), respectively. Relative to effects on the physical and mechanical properties of the acrylic resin, RC led to higher values of color change (p=0.030), hardness (p<0.001), surface roughness (p=0.006) and flexural strength (p<0.001). Moreover, RC induced the highest values of changes in solubility (p<0.001). EPC promoted greater changes in surface morphology, whereas immersion in SH retained the initial appearance of the acrylic resin surface. All hygiene solutions reduced the impact strength (p<0.05). CONCLUSION SH presented the most effective antibiofilm activity. In addition, changes on properties were observed after immersion in RC, which were considered within acceptable limits.
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Affiliation(s)
- Millena Mangueira Rocha
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Adrianne Moura Carvalho
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Flávia Cristina Targa Coimbra
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Carolina Noronha Ferraz de Arruda
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Viviane de Cássia Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Ana Paula Macedo
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Cláudia Helena Silva-Lovato
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Valéria Oliveira Pagnano
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
| | - Helena de Freitas Oliveira Paranhos
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brasil
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20
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Alhenaki AM, Alqarawi FK, Tanveer SA, Alshahrani FA, Alshahrani A, AlHamdan EM, Alzahrani KM, Aldahiyan N, Naseem M, Vohra F, Abduljabbar T. Disinfection of acrylic denture resin polymer with Rose Bengal, Methylene blue and Porphyrin derivative in photodynamic therapy. Photodiagnosis Photodyn Ther 2021; 35:102362. [PMID: 34062305 DOI: 10.1016/j.pdpdt.2021.102362] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/19/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022]
Abstract
AIM The study aimed to assess the effect of in-vitro chlorhexidine and antimicrobial photodynamic therapy (aPDT) disinfection protocols against acrylic resin specimens colonized with S. mutans, S. aureus, E. coli, and C. albicans. MATERIAL AND METHODS Reference strains of S. mutans, S. aureus, E. coli, and C. albicans were tested. Sixteen blocks of acrylic specimens were prepared by heat-cure acrylic resin and contaminated by in-vitro biofilm growth. Specimens in group 1, group 2 and group 3 were treated with Rose Bengal (RB), methylene blue (MB) 500 mg/L and porphyrin derivative (PD) 5 ml respectively, for the sensitization of biofilms. All photosensitizers (PS) were activated by LED at different wavelength. CHX was prepared in sterile distilled water and applied for 60 s. Each contaminated specimen was sprayed on all its surfaces with the aforementioned photosensitizers and control CHX. One-way analysis of variance (ANOVA) model was used to test the effect of the treatments and Tukey multiple comparison tests to compare means OF CFU/mL (log10) for exposed E. coli, C. albicans, S aureus, and S. mutans RESULTS: Specimens treated with 0.12% CHX (control) demonstrated a significant reduction in CFU/mL (log10) for exposed E. coli; 2.04±0.07 CFU/mL, C. albicans; 2.09±0.85 CFU/mL, S aureus; 3.04±0.11 CFU/mL, and S. mutans; 2.54±0.91 CFU/mL. The intragroup comparison revealed E.coli did not exhibit a decrease in reduction CFU/mL (log10) when acrylic resin irradiated with RB 5 µm. Whereas, CFU/mL (log10) values of S.aureus; 3.62±0.68 and S.mutans; 3.41±0.13 plummeted (p<0.05). Intergroup comparison showed E.coli values to display comparable reduction when disinfected with MB 500 mg/L and 0.12% CHX; 3.16±0.34 and 2.04±0.07 CFU/mL (log10) (p<0.05). CONCLUSION Photosensitizers (RB, MB, PD) are selective in reducing bacterial count on acrylic resin blocks. CHX was found to be effective against all bacteria E.coli, C.albicans, S.aureus, and S.mutans at a concentration of 0.12%.
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Affiliation(s)
- Aasem M Alhenaki
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Firas K Alqarawi
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Syeda A Tanveer
- Department of Oral Biology, College of Dentistry, Dow international Dental College. Karachi, Pakistan.
| | - Faris A Alshahrani
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Abdullah Alshahrani
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Eman M AlHamdan
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Khaled M Alzahrani
- Department of Prosthetic Dental sciences, College of Dentistry, Prince Sattam Bin AbdulAziz University, 11942 Alkharj Saudi Arabia.
| | - Nada Aldahiyan
- Post-Graduate Student. Department of Restorative Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
| | - Mustafa Naseem
- Department of Community and Preventive Dental sciences, Dow International Dental College, Dow University of Health Sciences, Karachi, Pakistan.
| | - Fahim Vohra
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Tariq Abduljabbar
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
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Coelho A, Amaro I, Apolónio A, Paula A, Saraiva J, Ferreira MM, Marto CM, Carrilho E. Effect of Cavity Disinfectants on Adhesion to Primary Teeth-A Systematic Review. Int J Mol Sci 2021; 22:4398. [PMID: 33922376 PMCID: PMC8122819 DOI: 10.3390/ijms22094398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
Some authors have been proposing the use of cavity disinfectants in order to reduce, or even eliminate, the effect of the microorganisms present in a dental cavity before a restoration is placed. The aim of this study was to evaluate the effect of different cavity disinfectants on bond strength and clinical success of composite and glass ionomer restorations on primary teeth. The research was conducted using Cochrane Library, PubMed/MEDLINE, SCOPUS, and Web of Science for articles published up to February 2021. The search was performed according to the PICO strategy. The evaluation of the methodological quality of each in vitro study was assessed using the CONSORT checklist for reporting in vitro studies on dental materials. Sixteen in vitro studies and one in situ study fulfilled the inclusion criteria and were analyzed. Chlorhexidine was the most studied cavity disinfectant, and its use does not compromise dentin bonding. Sodium hypochlorite is a promising alternative, but more research on its use is required to clearly state that it can safely be used as a cavity disinfectant for primary teeth. Although other disinfectants were studied, there is a low-level evidence attesting their effects on adhesion, therefore their use should be avoided.
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Affiliation(s)
- Ana Coelho
- Faculty of Medicine, Institute of Integrated Clinical Practice, University of Coimbra, 3000-075 Coimbra, Portugal; (I.A.); (A.A.); (A.P.); (J.S.); (E.C.)
- Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, 3000-548 Coimbra, Portugal; (M.M.F.); (C.M.M.)
- Clinical Academic Center of Coimbra (CACC), 3004-561 Coimbra, Portugal
| | - Inês Amaro
- Faculty of Medicine, Institute of Integrated Clinical Practice, University of Coimbra, 3000-075 Coimbra, Portugal; (I.A.); (A.A.); (A.P.); (J.S.); (E.C.)
| | - Ana Apolónio
- Faculty of Medicine, Institute of Integrated Clinical Practice, University of Coimbra, 3000-075 Coimbra, Portugal; (I.A.); (A.A.); (A.P.); (J.S.); (E.C.)
| | - Anabela Paula
- Faculty of Medicine, Institute of Integrated Clinical Practice, University of Coimbra, 3000-075 Coimbra, Portugal; (I.A.); (A.A.); (A.P.); (J.S.); (E.C.)
- Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, 3000-548 Coimbra, Portugal; (M.M.F.); (C.M.M.)
- Clinical Academic Center of Coimbra (CACC), 3004-561 Coimbra, Portugal
| | - José Saraiva
- Faculty of Medicine, Institute of Integrated Clinical Practice, University of Coimbra, 3000-075 Coimbra, Portugal; (I.A.); (A.A.); (A.P.); (J.S.); (E.C.)
| | - Manuel Marques Ferreira
- Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, 3000-548 Coimbra, Portugal; (M.M.F.); (C.M.M.)
- Clinical Academic Center of Coimbra (CACC), 3004-561 Coimbra, Portugal
- Faculty of Medicine, Institute of Endodontics, University of Coimbra, 3000-075 Coimbra, Portugal
| | - Carlos Miguel Marto
- Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, 3000-548 Coimbra, Portugal; (M.M.F.); (C.M.M.)
- Clinical Academic Center of Coimbra (CACC), 3004-561 Coimbra, Portugal
- Faculty of Medicine, Institute of Biophysics, University of Coimbra, 3004-548 Coimbra, Portugal
- Faculty of Medicine, Institute of Experimental Pathology, University of Coimbra, 3004-548 Coimbra, Portugal
| | - Eunice Carrilho
- Faculty of Medicine, Institute of Integrated Clinical Practice, University of Coimbra, 3000-075 Coimbra, Portugal; (I.A.); (A.A.); (A.P.); (J.S.); (E.C.)
- Area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR), University of Coimbra, 3000-548 Coimbra, Portugal; (M.M.F.); (C.M.M.)
- Clinical Academic Center of Coimbra (CACC), 3004-561 Coimbra, Portugal
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Monteiro DR, de Souza Batista VE, Caldeirão ACM, Jacinto RDC, Pessan JP. Oral prosthetic microbiology: aspects related to the oral microbiome, surface properties, and strategies for controlling biofilms. BIOFOULING 2021; 37:353-371. [PMID: 34139899 DOI: 10.1080/08927014.2021.1912741] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/21/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
The oral cavity is an environment that allows for the development of complex ecosystems; the placement of prosthetic devices as a consequence of partial or total tooth loss may alter the diversity of microbial communities. Biofilms on the surface of materials used in dental prostheses can promote important changes in the mechanic and aesthetic properties of the material itself and may cause local and systemic diseases for the prosthetic wearer. This review presents the main features of the oral microbiome associated with complete or partial dentures and dental implants. The main diseases associated with microbial colonization of prosthetic surfaces, factors that may affect biofilm formation on prosthetic materials, as well as novel alternative therapies aiming to reduce biofilm formation and/or to eradicate biofilms formed on these materials are also explored.
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Affiliation(s)
- Douglas Roberto Monteiro
- Graduate Program in Dentistry, University of Western São Paulo (UNOESTE), Presidente Prudente, São Paulo, Brazil
- School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), Araçatuba, São Paulo, Brazil
| | | | | | - Rogério de Castilho Jacinto
- School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), Araçatuba, São Paulo, Brazil
| | - Juliano Pelim Pessan
- School of Dentistry, Araçatuba, Department of Preventive and Restorative Dentistry, São Paulo State University (Unesp), Araçatuba, São Paulo, Brazil
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23
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Lu L, Li M, Yi G, Liao L, Cheng Q, Zhu J, Zhang B, Wang Y, Chen Y, Zeng M. Screening strategies for quorum sensing inhibitors in combating bacterial infections. J Pharm Anal 2021; 12:1-14. [PMID: 35573879 PMCID: PMC9073242 DOI: 10.1016/j.jpha.2021.03.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 03/04/2021] [Accepted: 03/25/2021] [Indexed: 01/20/2023] Open
Abstract
Interference with quorum sensing (QS) represents an antivirulence strategy with a significant promise for the treatment of bacterial infections and a new approach to restoring antibiotic tolerance. Over the past two decades, a novel series of studies have reported that quorum quenching approaches and the discovery of quorum sensing inhibitors (QSIs) have a strong impact on the discovery of anti-infective drugs against various types of bacteria. The discovery of QSI was demonstrated to be an appropriate strategy to expand the anti-infective therapeutic approaches to complement classical antibiotics and antimicrobial agents. For the discovery of QSIs, diverse approaches exist and develop in-step with the scale of screening as well as specific QS systems. This review highlights the latest findings in strategies and methodologies for QSI screening, involving activity-based screening with bioassays, chemical methods to seek bacterial QS pathways for QSI discovery, virtual screening for QSI screening, and other potential tools for interpreting QS signaling, which are innovative routes for future efforts to discover additional QSIs to combat bacterial infections. Interference with QSrepresents a promising antivirulence strategy for the treatment of bacterial infections. The discovery ofQSIs was demonstrated as an appropriate strategy to expand the anti-infective therapeutic arsenal to complement classical antibiotics and antimicrobial agents. For the discovery of QSIs, diverse approaches exist and develop in-step with the scale of screening and targeted QS systems. Few previous reviews have summarized the strategies and approaches of QSI screening, whereas this review highlights the recent findings in QSI screening strategies and methodologies.
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Affiliation(s)
- Lan Lu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
- Corresponding author.
| | - Mingxing Li
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Guojuan Yi
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Li Liao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Qiang Cheng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Jie Zhu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Bin Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Yingying Wang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Yong Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
| | - Ming Zeng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610000, China
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Araujo CB, Ribeiro AB, Fortes CV, Bueno FL, De Wever B, Oliveira VC, Macedo AP, Paranhos HFO, da Silva CHL. Effect of local hygiene protocols on denture-related stomatitis, biofilm, microbial load, and odor: A randomized controlled trial. J Prosthet Dent 2021; 128:664-673. [PMID: 33736863 DOI: 10.1016/j.prosdent.2020.12.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/18/2020] [Accepted: 12/18/2020] [Indexed: 12/20/2022]
Abstract
STATEMENT OF PROBLEM Denture stomatitis affects complete denture wearers and is frequently treated with antifungals drugs, as well as treating the denture with sodium hypochlorite. Whether the limitations of these treatments can be overcome with local hygiene protocols that do not damage the denture materials or adversely affect the patient is unclear. PURPOSE The purpose of this randomized controlled trial was to evaluate the effect of denture hygiene protocols on complete denture wearers with denture stomatitis. MATERIAL AND METHODS For this randomized, double-blind controlled clinical trial, 108 participants were assigned to parallel groups: 0.25% sodium hypochlorite (positive control) 0.15% Triclosan, denture cleaning tablets, or denture cleaning tablets plus gingival cleaning tablets. The participants were instructed to brush the dentures and the palate and immerse the denture in the solutions. The outcomes of denture stomatitis remission, biofilm removal, decrease of microbial load (colony-forming units), and odor level of the mouth and denture were measured at baseline and after 10 days. Descriptive analyses were used for sociodemographic characterization of the participants; the Pearson chi-square test was used to compare participant frequency with different degrees of denture stomatitis. The data were not normally distributed (Shapiro-Wilks test) or homogeneous (Levene test). So, the Kruskal-Wallis and Dunn post hoc tests and Wilcoxon test were used to compare the effects of solutions and time on the variables (α=.05). RESULTS The frequency of the highest to lowest denture stomatitis scores was significantly different for the 0.15% Triclosan and denture cleaning tablets groups. No significant difference was found among the groups in terms of denture stomatitis scores, biofilm, or colony-forming unit count of Candida spp. or C. albicans and S. mutans; a significant reduction was found in these parameters. The 0.25% sodium hypochlorite and 0.15% Triclosan treatments caused a significant reduction in Gram-negative microorganisms; these 2 protocols, and the denture cleaning tablets showed a significant reduction in Staphylococcus spp.; all protocols had similar effects. Only the S. mutans count of the palate decreased after 10 days. The odor level of the mouth and the denture was not significantly different (P=.778). CONCLUSIONS The evaluated protocols can be recommended for the hygiene of complete dentures, since they were effective for all the variables studied.
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Affiliation(s)
- Camila B Araujo
- Master student, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Adriana B Ribeiro
- Collaboration Professor, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Caroline V Fortes
- Master student, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Frank L Bueno
- Doctoral student, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Bart De Wever
- Chief Scientific Officer, bonyf AG, Vaduz, Liechtenstein
| | - Viviane C Oliveira
- Specialized Laboratory Technician, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Ana P Macedo
- Specialized Laboratory Technician, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Helena F O Paranhos
- Titular professor, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Claudia Helena Lovato da Silva
- Titular professor, Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP), Ribeirão Preto, SP, Brazil.
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25
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Shui Y, Li J, Lyu X, Wang Y. Phytotherapy in the management of denture stomatitis: A systematic review and meta-analysis of randomized controlled trials. Phytother Res 2021; 35:4111-4126. [PMID: 33751681 DOI: 10.1002/ptr.7073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 02/09/2021] [Accepted: 02/23/2021] [Indexed: 02/05/2023]
Abstract
Medicinal plant extracts are commonly applied for infectious diseases and are perceived as alternatives to conventional antimicrobial agents. We aimed to confirm the efficacy of phytotherapy for denture stomatitis compared with conventional therapies and placebo. A comprehensive literature search was conducted in Pubmed, Embase, Cochrane Library (CENTRAL), Scopus, and Web of Science, in addition to manual searching. Randomized controlled trials (RCTs) published in English, and studying the treatment of denture stomatitis with herbal medicines, were included. The outcome measures included the relief of clinical signs, reduced Candida colony counts, adverse effects, and patient satisfaction. Nineteen RCTs were included for a systematic review based on selection criteria. Two of them were analyzed using a random-effects model. There was no difference in the relief of clinical signs (odds ratio (OR) = 0.96; 95% confidence interval (CI): 0.43-2.15) and microbiological improvement (OR = 1.74; 95% CI: 0.55-5.45) between propolis and miconazole. Most of the included studies showed that phytomedicines had fewer side effects and more patient satisfaction than antifungals or disinfectants. However, further RCTs with more standardly prepared herbal formulations are required to verify the clinical efficacy of phytotherapy as an alternative or adjunctive therapy for denture stomatitis.
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Affiliation(s)
- Yusen Shui
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingya Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoying Lyu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yan Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Dept. of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Sodium bicarbonate gels: a new promising strategy for the treatment of vulvovaginal candidosis. Eur J Pharm Sci 2021; 157:105621. [PMID: 33122009 DOI: 10.1016/j.ejps.2020.105621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/07/2020] [Accepted: 10/21/2020] [Indexed: 12/18/2022]
Abstract
Vulvovaginal candidosis (VVC), caused mainly by the yeast Candida albicans, is the second most prevalent vaginal infection. It has been found to have a large impact on women's quality of life, self-esteem and routines. The prevalence of recurrent vulvovaginal candidosis (RVVC) remains high so the development of alternative treatments is needed. The main objective of this study was to develop and characterize sodium bicarbonate gels to treat VVC. We described key formulation characteristics and analyzed their influence on in vitro performance evaluations. The potential to inhibit Candida albicans's growth, the pH, osmolality, viscosity and rheological performance in contact with vaginal fluid simulant and the bioadhesion's profile (using a vaginal ex vivo porcine model) were studied for all formulations. Among the formulations, formulation C (5% sodium bicarbonate, 1% carbomer and 94% water) was the most effective in inhibiting the C. albicans' growth. This gel presented the same potential (the same MIC 2.5%) to inhibit other etiological agents of VVC (C. glabrata, C. krusei, C. tropicalis and C. parapsilosis) for all species tested. Additionally, sensorial characteristics of gel C were in accord with users' preferences. This gel exhibited physicochemical characteristics acceptable for short term treatments, suggesting good overall performance for the treatment of VVC. Furthermore, Gel C was biocompatible with the HeLa cell line (MTT assay) and was classified as a non-severe irritant in the HET-CAM assay (irritation score 4 ± 1). Overall, gel C was deemed the best performing of the set tested, and suitable for further development.
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Volchkova I, Yumashev A, Borisov V, Doroshina V, Kristal E, Repina S. Influence of Removable Denture Cleaning Agents on Adhesion of Oral Pathogenic Microflora In Vitro: A Randomized Controlled Trial. Open Dent J 2021. [DOI: 10.2174/1874210602014010656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Introduction:
Removable dentures are used by 20% of the population. These may be accompanied by denture stomatitis in 15-70% of patients. The choice of the optimal cleansing agent for removable dental prostheses is of high significance.
Aim:
The aim of our research was to study the influence of removable denture cleansing products on the adhesion of microorganisms and yeast.
Materials and Methods:
We manufactured 144 specimens of standardized round shape with a diameter of 10 mm from 4 types of modern polymeric materials used by prosthetic dentistry to produce removable dentures, 12 specimens of each material were placed into suspensions of bacterial cultures of Staphylococcus aureus, Escherichia coli, Candida albicans, then into “ClearaSept” (Test group 1), “Рrotefix active cleanser” (Test group 2), saline solution (Control group), followed by nutrient media. The adhesion index was calculated and analyzed.
Results:
There was no reliable lowering of adhesion index of Staphylococcus Aureus to all materials detected in Test group 1 (U=6, p>0.05 for Bio XS; U=8, p>0.05 for Dental D, Denotokeep Peek, Vertex Rapid Simplified). In Test group 2, the adhesion index of Staphylococcus Aureus reliably decreased to all materials compared to the Control group (U=0, p≤0.01). The adhesion index of Candida albicans and Escherichia coli to all materials in Test group 1 had a minor to moderate reliable reduction compared to the Control group (U=0, p≤0.01). Test group 2 showed a significant reliable decrease in Candida albicans and Escherichia coli adhesion index to all materials in comparison with the Control group (U=0, p≤0.01).
Conclusion:
The research showed an unreliable or minor and moderate reliable decrease in microorganisms adhesion index depending on the microorganism species after treatment of denture material specimens by antibacterial soap “ClearaSept” and a reliable significant decrease in microbial and yeast adhesion after application of Protefix active cleaner solution, which demonstrates a more significant antimicrobial effect in comparison to “ClearaSept” against Staphylococcus aureus, Escherichia coli, and Candida albicans.
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28
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The effects of three disinfection protocols on Candida spp., denture stomatitis, and biofilm: A parallel group randomized controlled trial. J Prosthet Dent 2020; 124:690-698. [DOI: 10.1016/j.prosdent.2019.09.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/25/2019] [Accepted: 09/25/2019] [Indexed: 02/06/2023]
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Ribeiro Rocha GDS, Neves Duarte T, de Oliveira Corrêa G, Nampo FK, de Paula Ramos S. Chemical cleaning methods for prostheses colonized by Candida spp.: A systematic review. J Prosthet Dent 2020; 124:653-658. [DOI: 10.1016/j.prosdent.2019.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 09/09/2019] [Accepted: 10/24/2019] [Indexed: 01/31/2023]
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Melo Neto CLDM, Bannwart LC, de Melo Moreno AL, Goiato MC. SARS-CoV-2 and Dentistry-Review. Eur J Dent 2020; 14:S130-S139. [PMID: 32932534 PMCID: PMC7775231 DOI: 10.1055/s-0040-1716438] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
SARS-CoV-2 (or 2019-nCoV) is the novel Coronavirus that affects humans. It originated in China at the end of 2019 due to the consumption of animals contaminated with this pathogen. SARS-CoV-2 causes the disease known as COVID-19 (coronavirus disease - 2019), and until May 21, 2020, approximately 213 countries and territories had been affected by SARS-CoV-2. The objective of this study was to review the origin and characteristics of this virus (SARS-CoV-2), symptoms and diagnosis of COVID-19, treatment of people with COVID-19, forms of transmission of the SARS-CoV-2, and precautions in dentistry. A literature search on PubMed/Medline was performed on the May 21, 2020, using the keywords (Mesh terms) "COVID-19" or "SARS-CoV-2" or "Coronavirus" associated with "dentistry" or "dental care" or "oral medicine." SARS-CoV-2 articles about the origin and characteristics of this virus (SARS-CoV-2), symptoms and diagnosis of COVID-19, treatment of people with COVID-19, forms of transmission of the SARS-CoV-2, and precautions in dentistry were included. The search was expanded according to necessity. Articles related to precautions in dentistry and SARS-CoV-1 or MERS-CoV were also selected, since precautions used in the dental clinic to avoid these viruses also apply to SARS-CoV-2. In addition, the references cited in the publications of articles included were also considered when appropriate. There was no limit in relation to the year of publication, and only articles written in English were included. In this study, suggestions for the safety of dental professionals were also included. Forty-seven articles and nine websites were included in this review.
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Affiliation(s)
| | - Lisiane Cristina Bannwart
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | | | - Marcelo Coelho Goiato
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
- Oral Oncology Center, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
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31
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de Almeida MAL, Batista AUD, de Araújo MRC, de Almeida VFDS, Bonan PRF, Nóbrega Alves D, da Costa TKVL, Nóbrega DF, de Castro RD. Cinnamaldehyde is a biologically active compound for the disinfection of removable denture: blinded randomized crossover clinical study. BMC Oral Health 2020; 20:223. [PMID: 32807162 PMCID: PMC7433048 DOI: 10.1186/s12903-020-01212-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/09/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Fungal infections associated with the use of dentures, like denture stomatitis, are difficult to prevent and treat. This in situ study aimed to investigate the efficacy of cinnamaldehyde for the disinfection of complete removable dentures, and the effect on the physical and mechanical properties (Vickers microhardness, color, and surface roughness) of the acrylic resin. METHODS Acrylic resin disks were inserted into the dentures of a probabilistic sample of 33 complete denture users, that used cinnamaldehyde (27 μg/mL) and 0.5% sodium hypochlorite solutions in a 20 min/7-days protocol of dentures immersion in each solution, with a wash-out period of 7 days, to constitute a crossover-study. The disks were analyzed before and after the immersion, for the presence of microorganisms (CFU/mL) and by scanning electron microscope (SEM). Also, the surface roughness (Ra) and Vickers microhardness were measured, and color parameters were analyzed using the National Bureau of Standards (NBS) method. Data was analyzed by Wilcoxon and Friedman (microbiological evaluation), paired t-test (color and roughness) and independent t-test (Vickers hardness) (α = 0.05). RESULTS A significant reduction (P < 0.05) in the number of microorganisms was observed for each species (total microorganisms, Streptococcus mutans, and Candida spp.), with no significant differences (P > 0.05) between hypochlorite and cinnamaldehyde. There was an increase in the roughness and a decrease in the hardness of the test specimens, with no difference between the two disinfectant substances (P > 0.05). Both hypochlorite and cinnamaldehyde also caused changes in color, considered as "perceptible" by the NBS classification, but with no significant difference between disinfectant substances (P < 0.05), and under the clinically acceptable limit (ΔE ≤ 3.7). CONCLUSION The 27 μg/mL cinnamaldehyde solution was effective against all evaluated microorganisms and caused minor alterations in hardness, surface roughness, and color parameters, with no clinical relevance.
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Affiliation(s)
- Marco Antônio Lavorato de Almeida
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | - André Ulisses Dantas Batista
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | - Maria Rejane Cruz de Araújo
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | | | - Paulo Rogério Ferreti Bonan
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | - Danielle Nóbrega Alves
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | - Tereza Karla Vieira Lopes da Costa
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | - Diego Figueiredo Nóbrega
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
| | - Ricardo Dias de Castro
- Faculty of Dentistry, Department of Clinical and Social Dentistry, Federal University of Paraíba, Campus I, João Pessoa, PB 58051-970 Brazil
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Antifungal Effect of Silver Nitrate on Prosthodontic Dentures. BALKAN JOURNAL OF DENTAL MEDICINE 2020. [DOI: 10.2478/bjdm-2020-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Summary
Background/Aim: Although there are studies about the antimicrobial activity of silver, there is no study evaluating it as a denture disinfectant. The purpose of this study was to explore the effectiveness of 6 disinfectant solutions (50% vinegar, 100% vinegar, 1% silver nitrate, 2% silver nitrate, %1 sodium hypochlorite, 0,12% chlorhexidine digluconate) in the disinfection of acrylic resin specimens contaminated in vitro by Candida albicans, as measured by residual colony-forming unit (CFU).
Material and Methods: 66 pieces of 10mmx2mm acrylic resin disc samples were prepared and incubated in 1x106 cell/ml suspension of C. albicans ATCC 18804 for 24 h (one of them as a control, n=11/group). The specimens were then transferred into tubes containing 10 ml of the tested disinfectants and kept for 10 minutes in the disinfectant. After washing with saline, the specimens were vortexed to remove the microorganisms adhered to the surfaces. Colony counting of the collected microorganisms was performed on Sabouroud dextrose medium using 10−1, 10−2 and 10−3 dilutions. The results were analysed using Kruskal-Wallis and Mann-Whitney U tests (p<0,05).
Results: The results showed that 1% sodium hypochlorite, %1 silver nitrate and 2% silver nitrate were the most effective against Candida Albicans (p<0,05), followed by 100% vinegar, 0,12% chlorhexidine digluconate and 50% vinegar (p<0,05).
Conclusions: Within the boundaries of this study, we conclude that 1% silver nitrate is a promising alternative disinfectant to 1% sodium hypochlorite and performs better compared to 0,12 % chlorhexidine gluconate, 50% and 100% vinegar.
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Salehi B, Kregiel D, Mahady G, Sharifi-Rad J, Martins N, Rodrigues CF. Management of Streptococcus mutans- Candida spp. Oral Biofilms' Infections: Paving the Way for Effective Clinical Interventions. J Clin Med 2020; 9:E517. [PMID: 32075040 PMCID: PMC7074106 DOI: 10.3390/jcm9020517] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/10/2020] [Accepted: 02/12/2020] [Indexed: 12/18/2022] Open
Abstract
Oral diseases are considered the most common noncommunicable diseases and are related to serious local and systemic disorders. Oral pathogens can grow and spread in the oral mucosae and frequently in biomaterials (e.g., dentures or prostheses) under polymicrobial biofilms, leading to several disorders such as dental caries and periodontal disease. Biofilms harbor a complex array of interacting microbes, increasingly unapproachable to antimicrobials and with dynamic processes key to disease pathogenicity, which partially explain the gradual loss of response towards conventional therapeutic regimens. New drugs (synthesized and natural) and other therapies that have revealed promising results for the treatment or control of these mixed biofilms are presented and discussed here. A structured search of bibliographic databases was applied to include recent research. There are several promising new approaches in the treatment of Candida spp.-Streptococcus mutans oral mixed biofilms that could be clinically applied in the near future. These findings confirm the importance of developing effective therapies for oral Candida-bacterial infections.
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Affiliation(s)
- Bahare Salehi
- Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran;
| | - Dorota Kregiel
- Department of Environmental Biotechnology, Lodz University of Technology, 90-924 Lodz, Wolczanska 171/173, Poland;
| | - Gail Mahady
- Department of Pharmacy Practice, Clinical Pharmacognosy Laboratories, University of Illinois at Chicago, Chicago, IL 60612, USA;
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
- Department of Chemistry, Richardson College for the Environmental Science Complex, The University of Winnipeg, 599 Portage Avenue, Winnipeg, MB R3B 2G3, Canada
| | - Natália Martins
- Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, Porto 4200-319, Portugal
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto 4200-135, Portugal
| | - Célia F. Rodrigues
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, Porto 4200-465, Portugal
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Lu L, Hu W, Tian Z, Yuan D, Yi G, Zhou Y, Cheng Q, Zhu J, Li M. Developing natural products as potential anti-biofilm agents. Chin Med 2019; 14:11. [PMID: 30936939 PMCID: PMC6425673 DOI: 10.1186/s13020-019-0232-2] [Citation(s) in RCA: 170] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/13/2019] [Indexed: 02/06/2023] Open
Abstract
Biofilm is a natural form of bacterial growth ubiquitously in environmental niches. The biofilm formation results in increased resistance to negative environmental influences including resistance to antibiotics and antimicrobial agents. Quorum sensing (QS) is cell-to-cell communication mechanism, which plays an important role in biofilm development and balances the environment when the bacteria density becomes high. Due to the prominent points of biofilms implicated in infectious disease and the spread of multi-drug resistance, it is urgent to discover new antibacterial agents that can regulate biofilm formation and development. Accumulated evidences demonstrated that natural products from plants had antimicrobial and chemo-preventive properties in modulation of biofilm formation in the last two decades. This review will summarize recent studies on the discovery of natural anti-biofilm agents from plants with clear-cut mechanisms or identified molecular addresses, as well as some herbs with unknown mechanisms or unidentified bioactive ingredients. We also focus on the progression of techniques on the extraction and identification of natural anti-biofilm substances. Besides, anti-biofilm therapeutics undergoing clinical trials are discussed. These newly discovered natural anti-biofilm agents are promising candidates which could provide novel strategies for biofilm-associated infections.
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Affiliation(s)
- Lan Lu
- 1Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan People's Republic of China.,2Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan People's Republic of China
| | - Wei Hu
- 4Department of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong People's Republic of China.,5Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Zeru Tian
- 6School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Dandan Yuan
- 7Department of Internal Oncology, Shandong Cancer Hospital and Institute, Shandong Academy of Medical Sciences, Jinan, Shandong People's Republic of China
| | - Guojuan Yi
- 1Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan People's Republic of China
| | - Yangyang Zhou
- 1Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan People's Republic of China
| | - Qiang Cheng
- 1Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan People's Republic of China
| | - Jie Zhu
- 1Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan People's Republic of China
| | - Mingxing Li
- 2Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan People's Republic of China.,South Sichuan Institute of Translational Medicine, Luzhou, Sichuan People's Republic of China
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Hajrah NH, Abdul WM, Al-Garni SM, Sheikh A, Ahmed MMM, Hall N, Saini KS, Mohammad Sabir JS, Bora RS. Gene expression profiling to elucidate the pharmacological and toxicological effects of Ricinus communis L. leaf extract in mammalian cells. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1578691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Nahid Hassan Hajrah
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Waseem Mohammed Abdul
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Saleh Mohammed Al-Garni
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdullah Sheikh
- College of Veterinary Medicine, King Faisal University, Al Ahsa, Saudi Arabia
| | - Mohamed Morsi Mohamed Ahmed
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Nucleic Acids Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City for Scientific Research and Technology Applications, Alexandria, Egypt
| | - Neil Hall
- The Earlham Institute, Norwich Research Park, Norwich, England, UK
| | - Kulvinder Singh Saini
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Biotechnology, College of Agriculture, Eternal University, Baru Sahib, HP, India
| | | | - Roop Singh Bora
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Biotechnology, College of Agriculture, Eternal University, Baru Sahib, HP, India
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De Abrew Abeysundara P, Dhowlaghar N, Nannapaneni R. Influence of cold stress on the survival of Listeria monocytogenes Bug600 and ScottA in lethal alkali, acid and oxidative stress. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.10.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Arruda CNF, Salles MM, Badaró MM, Sorgini DB, Oliveira VC, Macedo AP, Silva-Lovato CH, Paranhos HFO. Evaluation of biofilm removal and adverse effects on acrylic resin by diluted concentrations of sodium hypochlorite and Ricinus communis solutions. Gerodontology 2018; 35:246-253. [PMID: 29790590 DOI: 10.1111/ger.12348] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2018] [Indexed: 12/14/2022]
Abstract
PURPOSE To verify whether 0.1% and 0.2% sodium hypochlorite (NaOCl), and 8% Ricinus communis (RC) were able to remove denture biofilm without causing deleterious effects to acrylic resin. BACKGROUND Previous data show that denture cleansers are effective in reducing biofilm; however, they can change acrylic resin properties. METHODS In a crossover trial, 47 denture wearers brushed and soaked their dentures (20 min/14 d): control, 0.85% saline; SH1, 0.1% NaOCl; SH2, 0.2% NaOCl and RC. Denture biofilm on the intaglio surface was stained, photographed and quantified (Image Tool® ). Furthermore, 80 rectangular and 80 disc-shaped specimens (Lucitone 550) were assigned into tested solutions (n = 20), simulating 5 years of daily short immersions (20 minutes). A colorimeter and the National Bureau of Standards units (NBS) determined colour data (ΔE). Surface roughness and flexural strength were measured using rugosimeter and universal testing machine, respectively. Data were compared by the Friedman test (α = .05) followed by Wilcoxon, corrected by Bonferroni (α = .005) (clinical) and Kruskal-Wallis followed by the Dunn test (α = .05) (laboratorial). RESULTS SH2 (MR=1.77) showed lower biofilm coverage; SH1 (MR = 2.37) and RC (MR = 2.74) presented intermediated values. RC (1.10 [0.96:1.75]) revealed higher colour alteration than SH1 (0.71 [0.62:0.80]) and SH2 (0.74 [0.58:0.85]); however, NBS classified all solutions as "trace" (0.0-0.5). There was no statistical significance for surface roughness (P = .760) and flexural strength (P = .547). CONCLUSIONS The 0.2% NaOCl showed the best clinical performance and did not cause adverse effects on acrylic resin on laboratory analyses.
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Affiliation(s)
- Carolina N F Arruda
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Marcela M Salles
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Maurício M Badaró
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Danilo B Sorgini
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Viviane C Oliveira
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Ana P Macedo
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Cláudia H Silva-Lovato
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Helena F O Paranhos
- Department of Dental Materials and Prosthodontics, Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Pinheiro JB, Vomero MP, do Nascimento C, Watanabe E, Paranhos HDFO, Coto NP, Dias RB, Oliveira VCD, Silva-Lovato CH. Genomic identification of microbial species adhering to maxillofacial prostheses and susceptibility to different hygiene protocols. BIOFOULING 2018; 34:15-25. [PMID: 29258349 DOI: 10.1080/08927014.2017.1403591] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 11/03/2017] [Indexed: 06/07/2023]
Abstract
This study investigated the microbial colonization of maxillofacial prostheses and support tissues using the Checkerboard DNA-DNA hybridization method, and the efficacy of 0.12% chlorhexidine gluconate, 10% Ricinus communis solutions, or brushing, on colony forming unit (CFU) reduction in monospecies biofilms (Candida glabrata, Staphylococcus aureus, Streptococcus mutans, Escherichia coli, Enterococcus faecalis, and Pseudomonas aeruginosa) formed on two silicones (MDX 4-4210 and Bio-Skin). Biofilm was harvested from 43 maxillofacial prosthesis wearers for detection of 38 species of microorganisms. The CFU counts of the six above mentioned species were recorded after using the hygiene protocols. All 38 investigated species were identified in prostheses and tissues, with a higher prevalence in the prostheses. 0.12% chlorhexidine gluconate immersion showed the greatest antimicrobial effectiveness, followed by mechanical brushing protocols. MDX 4-4210 silicone produced lower CFU counts than Bio-Skin.
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Affiliation(s)
- Juliana Barchelli Pinheiro
- a Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto , University of Sao Paulo , Sao Paulo , Brazil
| | - Marina Peris Vomero
- a Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto , University of Sao Paulo , Sao Paulo , Brazil
| | - Cássio do Nascimento
- a Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto , University of Sao Paulo , Sao Paulo , Brazil
| | - Evandro Watanabe
- b Department of Restorative Dentistry, School of Dentistry of Ribeirao Preto , University of Sao Paulo , Sao Paulo , Brazil
| | | | - Neide Pena Coto
- c Department of Maxillofacial Surgery, Prostheses and Traumatology, School of Dentistry of Sao Paulo , University of Sao Paulo , Sao Paulo , Brazil
| | - Reinaldo Brito Dias
- c Department of Maxillofacial Surgery, Prostheses and Traumatology, School of Dentistry of Sao Paulo , University of Sao Paulo , Sao Paulo , Brazil
| | - Viviane Cássia de Oliveira
- a Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto , University of Sao Paulo , Sao Paulo , Brazil
| | - Cláudia Helena Silva-Lovato
- a Department of Dental Materials and Prostheses, School of Dentistry of Ribeirao Preto , University of Sao Paulo , Sao Paulo , Brazil
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Badaró MM, Prates TP, Leite-Fernandes VMF, Oliveira VDC, Paranhos HDFO, Silva-Lovato CH. In Vitro Evaluation of Resilient Liner after Brushing with Conventional and Experimental Ricinus communis-Based Dentifrices. J Prosthodont 2017; 28:e857-e862. [PMID: 29235702 DOI: 10.1111/jopr.12680] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2017] [Indexed: 11/30/2022] Open
Abstract
PURPOSE To evaluate the effect of experimental (Ricinus communis) and commercial dentifrices used for denture cleaning on abrasiveness (gravimetric method; roughness), hardness, and color stability of a resilient relining material. MATERIALS AND METHODS Sixty circular (15 × 3 mm) specimens were distributed into four groups: C (control; brushing with water); CO (brushing with Colgate - for natural teeth); CB (brushing with Corega Brite - for complete dentures); RC (brushing with experimental dentifrice). Brushing was performed in a toothbrushing machine with a soft brush and a dentifrice suspension for 50 minutes, calculated to correspond to 1 year of regular brushing. Variables were measured initially and after the trial period. For the gravimetric method, the difference in mass was considered. The surface roughness was measured by a rugosimeter, and the hardness test was performed by a Shore A durometer. Color changes (ΔE; CIE L*a*b* and NBS systems) were measured by a portable spectrophotometer. Results were analyzed by ANOVA/Tukey's test (α = 0.05). RESULTS The largest mass variation (μg; p < 0.0001) occurred in C (-6.21 ± 3.18). Concerning roughness, CB (0.26 ± 0.04) showed the lowest value, followed by RC (0.29 ± 0.08) and CO (0.34 ± 0.24) (p < 0.0001). Group C produced the greatest surface roughness (0.72 ± 0.25). Hardness values decreased after brushing with water (p = 0.014). No significant differences were found among RC (50.31 ± 1.03), CO (49.11 ± 1.31), CB (49.17 ± 1.23), and C (48.02 ± 1.26). Color stability was similar in all groups (p = 0.135; C: 2.3 ± 0.77; CO: 2.6 ± 0.54; CB: 2.2 ± 0.44; RC: 2.9 ± 1.56). CONCLUSIONS The use of experimental dentifrice could be indicated, as it showed similar results to the specific dentifrice, keeping the resilient material properties within acceptable values.
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Affiliation(s)
- Maurício Malheiros Badaró
- Department of Dental Materials and Prosthodontics, University of São Paulo, School of Dentistry of Ribeirão Preto, Brazil
| | - Talita Pereira Prates
- Department of Pediatric Dentistry, University of São Paulo, School of Dentistry of Ribeirão Preto, Brazil
| | | | - Viviane de Cássia Oliveira
- Department of Dental Materials and Prosthodontics, University of São Paulo, School of Dentistry of Ribeirão Preto, Brazil
| | | | - Cláudia Helena Silva-Lovato
- Department of Dental Materials and Prosthodontics, University of São Paulo, School of Dentistry of Ribeirão Preto, Brazil
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Papadiochou S, Polyzois G. Hygiene practices in removable prosthodontics: A systematic review. Int J Dent Hyg 2017; 16:179-201. [DOI: 10.1111/idh.12323] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2017] [Indexed: 12/20/2022]
Affiliation(s)
- S Papadiochou
- Department of Prosthodontics; School of Dentistry; Faculty of Health Sciences; National and Kapodistrian University of Athens; Athens Greece
| | - G Polyzois
- Department of Prosthodontics; School of Dentistry; Faculty of Health Sciences; National and Kapodistrian University of Athens; Athens Greece
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Badaró MM, Salles MM, Leite VMF, Arruda CNFD, Oliveira VDC, Nascimento CD, Souza RFD, Paranhos HDFDO, Silva-Lovato CH. Clinical trial for evaluation of Ricinus communis and sodium hypochlorite as denture cleanser. J Appl Oral Sci 2017; 25:324-334. [PMID: 28678952 PMCID: PMC5482256 DOI: 10.1590/1678-7757-2016-0222] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 11/27/2016] [Indexed: 11/22/2022] Open
Abstract
Objective This study evaluated Ricinus communis and sodium hypochlorite solutions in terms of biofilm removal ability, remission of candidiasis, antimicrobial activity, and participant satisfaction. Material and Methods It was conducted a controlled clinical trial, randomized, double-blind, and crossover. Sixty-four denture wearers with (n=24) and without candidiasis (n=40) were instructed to brush (3 times/day) and immerse their dentures (20 min/day) in different storage solutions (S1 / S2: 0.25% / 0.5% sodium hypochlorite; S3: 10% R. communis; S4: Saline).The trial period for each solution was seven days and a washout period of seven days was used before starting the use of another solution. The variables were analyzed at baseline and after each trial period. The biofilm of inner surfaces of maxillary dentures was disclosed, photographed, and total and dyed areas were measured (Image Tool software). The percentage of biofilm was calculated. Remission of candidiasis was assessed by visual scale and score were attributed. Antimicrobial activity was assessed by the DNA-Checkerboard hybridization method. Patient satisfaction was measured using a questionnaire. Results S1 (4.41±7.98%) and S2 (2.93±5.23%) were more effective then S3 (6.95±10.93%) in biofilm remotion(P<0.0001). All solutions were different from the control (11.07±11.99%). S3 was the most effective solution in remission of candidiasis (50%), followed by S1 (46%). Concerning antimicrobial action, S1/S2 were similar and resulted in the lowest microorganism mean count (P=0.04), followed by S3. No significant differences were found with patient's satisfaction. Conclusions 10% R. communis and 0.25% sodium hypochlorite were effective in biofilm removal, causing remission of candidiasis and reducing the formation of microbial colonies in denture surfaces. All solutions were approved by patients.
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Affiliation(s)
- Maurício Malheiros Badaró
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | - Marcela Moreira Salles
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | - Vanessa Maria Fagundes Leite
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | - Carolina Noronha Ferraz de Arruda
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | - Viviane de Cássia Oliveira
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | - Cássio do Nascimento
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | - Raphael Freitas de Souza
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
| | | | - Cláudia Helena Silva-Lovato
- Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Departamento de Materiais Dentários e Prótese, Ribeirão Preto, SP, Brazil
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Effect of sodium hypochlorite and Ricinus communis solutions on control of denture biofilm: A randomized crossover clinical trial. J Prosthet Dent 2017; 117:729-734. [DOI: 10.1016/j.prosdent.2016.08.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 11/18/2022]
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Peracini A, Regis RR, Souza RFD, Pagnano VO, Silva CHLD, Paranhos HDFO. Alkaline Peroxides Versus Sodium Hypochlorite for Removing Denture Biofilm: a Crossover Randomized Trial. Braz Dent J 2016; 27:700-704. [PMID: 27982182 DOI: 10.1590/0103-6440201600913] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 09/01/2016] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the efficacy of cleanser solutions on denture biofilm removal by a crossover randomized clinical trial. Thirty two edentulous patients were instructed to brush their dentures (specific brush and liquid soap) three times a day (after breakfast, lunch and dinner) and to soak them (≥ 8 h) in: (C) control -water; (AP): alkaline peroxide; or (SH) 0.5% sodium hypochlorite. Each solution was used for 21 days (three cycles of 7 days). At the end of each cycle, the inner surfaces of maxillary dentures were disclosed (1% neutral red) and photographed (HX1 - Sony). Areas (total and stained biofilm) were measured (Image Tool software) and the percentage of biofilm calculated as the ratio between the area of the biofilm multiplied by 100 and total surface area of the internal base of the denture. Data were compared by means of generalized estimating equation (α=5%) and multiple comparisons (Bonferroni; α=1.67%). Immersion in SH reduced biofilm (%) (8.3 ± 13.3B) compared to C (18.2 ± 14.9A) and AP (18.2 ± 16.6A). The 0.5% sodium hypochlorite solution was the most efficacious for biofilm removal. Alkaline peroxides may not lead to further biofilm removal in patients with adequate denture maintenance habits.
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Affiliation(s)
- Amanda Peracini
- Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Raphael Freitas de Souza
- Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Valéria Oliveira Pagnano
- Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Cláudia Helena Lovato da Silva
- Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Helena de Freitas Oliveira Paranhos
- Department of Dental Materials and Prosthetics, School of Dentistry of Ribeirão Preto, USP - University of São Paulo, Ribeirão Preto, SP, Brazil
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Neppelenbroek KH. The importance of daily removal of the denture biofilm for oral and systemic diseases prevention. J Appl Oral Sci 2016; 23:547-8. [PMID: 26814455 PMCID: PMC4716691 DOI: 10.1590/1678-77572015ed006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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