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Zhang K, Zhang S, Shi Y, Zhang L, Fu B. Effects of disinfectants on physical properties of denture base resins: A systematic review and meta-analysis. J Prosthet Dent 2024; 131:841-858. [PMID: 35465961 DOI: 10.1016/j.prosdent.2022.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/16/2022]
Abstract
STATEMENT OF PROBLEM The disinfection of removable dental prostheses and orthodontic appliances is essential to preventing transmission of pathogens. However, whether different disinfection solutions and durations affect the physical properties of denture base resins is unclear. PURPOSE The purpose of this systematic review and meta-analysis was to statistically analyze the influence of disinfectants on the physical properties of denture base resins. MATERIAL AND METHODS A systematic search in Medline, Embase, PubMed, and Cochrane Library databases was conducted to evaluate the effects of chemical disinfection on the physical properties of denture base resins such as surface morphology, roughness, hardness, and flexural strength. Of 1909 studies, 44 studies were included in the systematic review and 41 in the meta-analysis. Heterogeneity was analyzed by using I2 statistics. The influence of different disinfection solutions and durations on the physical properties was further analyzed, and the risk of bias evaluated. Statistical analyses were performed by using the RevMan 5.4 software program with the standardized mean differences (SMDs) and 95% confidence intervals (CIs). RESULTS Of the 44 included studies, 40 studies were assessed as having a low risk of bias, and 4 had an unclear risk of bias. Meta-analysis results showed that compared with the control, disinfection could not significantly affect surface roughness and hardness within 60 minutes of immersion in disinfectant solutions or flexural strength within 30 minutes (roughness: P=.79, I2=0%; flexural strength: P=.08, I2=0%; hardness: P=.05, I2=19%). In addition, the physical properties were not significantly affected when glutaraldehyde, chlorhexidine, and peracetic acid were repeatedly used for more than 30 minutes. CONCLUSIONS Most of the disinfectants did not reduce the physical properties of denture base resin within 30 minutes of immersion. Glutaraldehyde, chlorhexidine, and peracetic acid are recommended if longer immersion or repeated disinfection is required.
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Affiliation(s)
- Kai Zhang
- Postgraduate student, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Biomaterials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Sisi Zhang
- Postgraduate student, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Biomaterials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Ying Shi
- Resident, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Biomaterials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Ling Zhang
- Associate Professor, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Biomaterials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Baiping Fu
- Professor, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Biomaterials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, Zhejiang, PR China.
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Choi SS, Lee JH, Kong H, Park EJ. Biofilm removal effect of diatom complex on 3D printed denture base resin. Sci Rep 2024; 14:4034. [PMID: 38369560 PMCID: PMC10874960 DOI: 10.1038/s41598-024-54408-y] [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: 12/07/2023] [Accepted: 02/12/2024] [Indexed: 02/20/2024] Open
Abstract
For patients who have difficulty in mechanical cleaning of dental appliances, a denture cleaner that can remove biofilm with dense extracellular polymeric substances is needed. The purpose of this study is to evaluate the efficacy of diatom complex with active micro-locomotion for removing biofilms from 3D printed dentures. The diatom complex, which is made by doping MnO2 nanosheets on diatom biosilica, is mixed with H2O2 to generate fine air bubbles continuously. Denture base resin specimens were 3D printed in a roof shape, and Pseudomonas aeruginosa (107 CFU/mL) was cultured on those for biofilm formation. Cleaning solutions of phosphate-buffered saline (negative control, NC), 3% H2O2 with peracetic acid (positive control, PC), denture cleanser tablet (DCT), 3% H2O2 with 2 mg/mL diatom complex M (Melosira, DM), 3% H2O2 with 2 mg/mL diatom complex A (Aulacoseira, DA), and DCT with 2 mg/mL DM were prepared and applied. To assess the efficacy of biofilm removal quantitatively, absorbance after cleaning was measured. To evaluate the stability of long-term use, surface roughness, ΔE, surface micro-hardness, and flexural strength of the 3D printed dentures were measured before and after cleaning. Cytotoxicity was evaluated using Cell Counting Kit-8. All statistical analyses were conducted using SPSS for Windows with one-way ANOVA, followed by Scheffe's test as a post hoc (p < 0.05). The group treated with 3% H2O2 with DA demonstrated the lowest absorbance value, followed by the groups treated with 3% H2O2 with DM, PC, DCT, DCT + DM, and finally NC. As a result of Scheffe's test to evaluate the significance of difference between the mean values of each group, statistically significant differences were shown in all groups based on the NC group. The DA and DM groups showed the largest mean difference though there was no significant difference between the two groups. Regarding the evaluation of physical and mechanical properties of the denture base resin, no statistically significant differences were observed before and after cleaning. In the cytotoxicity test, the relative cell count was over 70%, reflecting an absence of cytotoxicity. The diatom complex utilizing active micro-locomotion has effective biofilm removal ability and has a minimal effect in physical and mechanical properties of the substrate with no cytotoxicity.
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Affiliation(s)
- Sung-Sil Choi
- Department of Dental Laboratory Technology, Graduate School of Clinical Dentistry, Ewha Womans University, Seoul, 07985, Republic of Korea
| | - Joo Hun Lee
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, 61801, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, 61801, USA
| | - Eun-Jin Park
- Department of Prosthodontics, College of Medicine, Ewha Womans University, 25, Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Republic of Korea.
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Coelho SRG, da Silva MDD, Nunes TSBS, Viotto HEC, Marin DOM, Pero AC. Effect of immersion in disinfectants on the color stability of denture base resins and artificial teeth obtained by 3D printing. J Prosthodont 2024; 33:157-163. [PMID: 36740784 DOI: 10.1111/jopr.13663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 01/27/2023] [Indexed: 02/07/2023] Open
Abstract
PURPOSE To evaluate the effect of immersion in disinfecting solutions on the color stability of denture base resins and artificial teeth obtained by 3D printing. MATERIALS AND METHODS Forty discs (15 × 3 mm) were obtained for each group: Lucitone 550 and Cosmos Denture 3D (denture base resins), Duralay and Cosmos TEMP 3D (artificial teeth resins). The discs were immersed in disinfectant solutions: Corega Tabs, 2% chlorhexidine digluconate, 0.25% sodium hypochlorite, and distilled water. Color measurements were obtained with a spectrophotometer before immersion in disinfectants and after the simulated periods of 6 and 12 months. Data (ΔE00 ) were submitted to mixed three-way ANOVA and Bonferroni post-test. RESULTS For denture base resins, Cosmos Denture 3D showed greater color change regardless of the solution and immersion time. The immersion time of 6 months influenced the color change of the denture base resins regardless of the disinfectant solution. For the artificial teeth resins, the immersion time of 12 months showed a significant color change when compared to 6 months. Cosmos TEMP 3D showed greater color change for all solutions, except for 0.25% sodium hypochlorite. Duralay resin showed greater color change in 2% chlorhexidine, regardless of immersion time. CONCLUSIONS For denture base resins, the immersion time significantly changed the color regardless of the solution. For artificial teeth resins, Cosmos TEMP 3D showed greater color changes in all solutions when compared to Duralay, except for 0.25% sodium hypochlorite. Chlorhexidine digluconate significantly changed the color of Duralay.
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Affiliation(s)
- Sabrina R G Coelho
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brazil
| | - Marcela D D da Silva
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brazil
| | - Thais S B S Nunes
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brazil
| | - Hamile E C Viotto
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brazil
| | - Danny O M Marin
- Department of Dentistry, Federal University of Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brazil
| | - Ana C Pero
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brazil
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Çakmak G, Hess JA, Dönmez MB, Yılmaz D, Alhotan A, Schimmel M, Peutzfeldt A, Yilmaz B. Effect of polishing and denture cleansers on the surface roughness of new-generation denture base materials and their color change after cleansing. J Prosthodont 2023. [PMID: 37624691 DOI: 10.1111/jopr.13755] [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] [Received: 05/11/2023] [Revised: 07/20/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
Abstract
PURPOSE To evaluate the effect of polishing and denture cleansers on the surface roughness (Ra ) of new-generation denture base materials that are additively, subtractively, and conventionally fabricated, while also assessing their color change after cleansing. MATERIAL AND METHODS One hundred and fifty disk-shaped specimens (Ø10 × 2 mm) were prepared from five denture base materials (one subtractively manufactured nanographene-reinforced prepolymerized polymethylmethacrylate (PMMA) (SM-GC), one subtractively manufactured prepolymerized PMMA (SM-PM), two additively manufactured denture base resins (AM-DT and AM-ND), and one heat-polymerized PMMA (CV) (n = 30). The Ra of the specimens was measured before and after conventional laboratory polishing, while color coordinates were measured after polishing. Specimens were then divided into three subgroups based on the denture cleanser: distilled water, 1% sodium hypochlorite (NaOCl), and effervescent tablet (n = 10). The Ra and color coordinates were remeasured after nine cleansing cycles over a period of 20 days. The CIEDE2000 formula was used to calculate the color differences (ΔE00 ). Two-way analysis of variance (ANOVA) was used to analyze the Ra values before (n = 30) and after (n = 10) cleansing, while repeated measures ANOVA was used to analyze the Ra of material-time point pairs within each denture cleanser (n = 10). ΔE00 data after denture cleansing was also analyzed by using two-way ANOVA (n = 10) (α = 0.05). RESULTS Before polishing, Ra varied significantly among the materials. SM-GC and SM-PM had the lowest and AM-ND the highest Ra values (P < 0.001). Polishing significantly reduced Ra of all materials (P < 0.001), and after polishing, Ra differences among materials were nonsignificant (P ≥ 0.072). Regardless of the denture cleanser, the Ra of AM-DT, AM-ND, and CV was the highest before polishing when different time points were considered (P < 0.001). After cleansing, AM-ND had the highest Ra of all the materials, regardless of the cleanser (P ≤ 0.017). AM-DT had higher Ra than SM-PM when distilled water (P = 0.040) and higher Ra than SM-GC, SM-PM, and CV when NaOCl was used (P < 0.001). The type of cleanser significantly influenced the Ra of AM-DT, AM-ND, and CV. For AM-DT, NaOCl led to the highest Ra and the tablet led to the lowest Ra (P ≤ 0.042), while for AM-ND, distilled water led to the lowest Ra (P ≤ 0.024). For CV, the tablet led to lower Ra than distilled water (P = 0.009). Color change varied among the materials. When distilled water was used, SM-GC had higher ΔE00 than SM-PM and AM-DT (P ≤ 0.034). When NaOCl was used, AM-ND had higher ΔE00 than SM-GC, SM-PM, and AM-DT, while CV and SM-GC had higher ΔE00 than SM-PM and AM-DT (P ≤ 0.039). Finally, when the tablet was used, AM-ND and CV had the highest ΔE00 , while AM-DT had lower ΔE00 than SM-GC (P ≤ 0.015). CONCLUSIONS The tested materials had unacceptable surface roughness (>0.2 μm) before polishing. Roughness decreased significantly after polishing (<0.2 μm). Denture cleansers did not significantly affect the surface roughness of the materials, and roughness remained clinically acceptable after cleansing (<0.2 μm). Considering previously reported color thresholds, AM-ND and CV had unacceptable color change regardless of the denture cleanser, and the effervescent tablet led to perceptible, but acceptable color change for SM-GC, SM-PM, and AM-DT.
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Affiliation(s)
- Gülce Çakmak
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Julia Anouk Hess
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Mustafa Borga Dönmez
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Prosthodontics, Faculty of Dentistry, Istinye University, Istanbul, Turkey
| | - Deniz Yılmaz
- Department of Prosthodontics, Faculty of Dentistry, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Abdulaziz Alhotan
- Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Martin Schimmel
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Anne Peutzfeldt
- Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Burak Yilmaz
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland
- Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, Ohio, USA
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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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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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Effect of simulated brushing and disinfection on the surface roughness and color stability of CAD-CAM denture base materials. J Mech Behav Biomed Mater 2022; 134:105390. [DOI: 10.1016/j.jmbbm.2022.105390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/13/2022] [Accepted: 07/17/2022] [Indexed: 11/23/2022]
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8
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Effects of long-term cinnamaldehyde immersion on the surface roughness and color of heat-polymerized denture base resin. J Prosthet Dent 2022; 128:521.e1-521.e8. [PMID: 35970612 DOI: 10.1016/j.prosdent.2022.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 11/21/2022]
Abstract
STATEMENT OF PROBLEM Cinnamaldehyde has been successfully used for the short-term disinfection of dentures; however, its long-term effects on the surface and color properties of denture base materials remain unknown. PURPOSE The purpose of this in vitro study was to evaluate the effects of simulated immersion in cinnamaldehyde for up to 5 years on the surface roughness and color parameters of a heat-polymerized denture resin. MATERIAL AND METHODS Eighty Ø10×5-mm disk-shaped specimens were prepared from microwave heat-polymerized polymethylmethacrylate (PMMA) and immersed in 4 solutions (n=20): TW-tap water (control), SH - 0.5% sodium hypochlorite, PX-alkaline peroxide, and CA-cinnamaldehyde (27 μg/mL). The immersion protocol simulated 104 cycles (3.5 months), 913 cycles (2.5 years), and 1825 immersion cycles (5 years) of a daily immersion cleaning protocol, with immersion times ranging from 10 to 20-minutes. Surface roughness (Sa) and the color parameters of CIELab (L∗ a∗ b∗, ΔEab), CIEDE2000 (ΔE00), and the National Bureau of Standards (NBS) were analyzed at baseline (t=0) and after the immersion cycles. The data were analyzed by 2-way analysis of variance (ANOVA) for repeated measures and the Tukey post hoc test (α=.01). RESULTS Sa was significantly increased in all groups after 1825 cycles compared with baseline (P<.01), regardless of the solution. Only the time factor significantly affected ΔEab, ΔE00, and NBS parameters, which were below the perceptibility and acceptability thresholds. After a simulated 5-year immersion, the surface roughness and color values of CA-treated specimens were not statistically different from those of the other groups (P>.01). CONCLUSIONS Cinnamaldehyde solution (27 μg/mL) produced minor effects on the surface roughness and color parameters of a heat-polymerized denture base resin similar to those of 0.5% sodium hypochlorite and alkaline peroxide after a 5-year simulated immersion.
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9
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Melo CBF, Feitosa MD, Maia SDB, Barreto JO, Peixoto RF, Regis RR. Effect of a continuous mechanical polishing protocol on the color stainability, microhardness, mass, and surface roughness of denture base acrylic resin. J Prosthet Dent 2021; 126:796-802. [PMID: 34486976 DOI: 10.1016/j.prosdent.2020.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 06/29/2020] [Accepted: 06/29/2020] [Indexed: 12/15/2022]
Abstract
STATEMENT OF PROBLEM The acrylic resin used in dental prostheses, which is subject to changes in its properties caused by hygiene chemicals, brushing, and colored beverages, can benefit from mechanical polishing methods. However, studies evaluating whether such procedures can be performed continuously without damaging the prosthetic materials are lacking. PURPOSE The purpose of this in vitro study was to evaluate the effect of a continuous mechanical polishing protocol on the color stainability, surface roughness, microhardness, and mass of a denture base acrylic resin. MATERIAL AND METHODS The polishing protocol was tested in specimens submitted to one of the following conditions: immersion in coffee (CF) (n=20); toothbrushing (Br, 35 600 cycles in a brushing simulation machine) (n=20); and immersion in 1% sodium hypochlorite (HYP) (n=20). For each condition, half of the specimens were polished (aluminum oxide paste and felt wheel attached to an electric motor, 3000 rpm) at simulated biweekly intervals. Two groups (n=10) of specimens were immersed in distilled water and used as the control for the immersion groups. Thus, the present study consisted of a total of 8 groups (n=80). Before and after simulated periods of 12 and 24 months, surface roughness was evaluated by using a contact profilometer; a spectrophotometer was used to calculate color changes (ΔE00); and a Knoop microdurometer and a precision balance were used to assess microhardness and mass changes. Data were compared by using 2-way mixed ANOVA. The Tukey HSD and Student t tests were used for post hoc analysis (α=.05). RESULTS The polishing influenced surface roughness (Br, CF, HYP: P<.001) and color stainability (Br: P=.008; CF: P<.001). Significant increase in roughness was observed for the Br and HYP groups, and the polishing significantly reduced roughness under all experimental conditions. In general, the polishing did not affect the microhardness and caused minimum wear of the acrylic resin. ΔE00 values were above the clinical perceptibility threshold (ΔE00>1.30) for the Br group, exceeding the clinical acceptability threshold for the CF group (ΔE00= 2.51). Polishing reduced ΔE00 in these groups, making values similar to those found in the groups immersed in distilled water. The color in the HYP group was not influenced by polishing. CONCLUSIONS In general, the tested polishing protocol reduced the deleterious effects of brushing and contact with 1% sodium hypochlorite and coffee, reducing surface roughness and color change without affecting microhardness and mass in any clinically relevant way.
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Affiliation(s)
- Ciro B F Melo
- Postgraduate student, Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Márcia D Feitosa
- Predoctoral student, Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Sabrina D B Maia
- Predoctoral student, Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Joel O Barreto
- Postgraduate student, Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Raniel F Peixoto
- Professor, Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Rômulo R Regis
- Adjunct Professor, Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil.
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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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Barreto JO, do Nascimento FBSA, Fonseca SGDC, Serpa Sampaio L, da Silva CR, de Andrade Neto JB, Júnior HVN, Regis RR. Microbiological evaluation of an experimental denture cleanser containing essential oil of Lippia sidoides. BIOFOULING 2021; 37:117-130. [PMID: 33593175 DOI: 10.1080/08927014.2021.1885649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 01/21/2021] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
The antimicrobial activity of an experimental solution containing essential oil of Lippia sidoides for denture cleaning was evaluated by (1) minimum inhibitory (MIC) and fungicidal/bactericidal concentration (MFC/MBC) tests against Candida albicans, Staphylococcus aureus, and Pseudomona aeruginosa; (2) the metabolic activity of C. albicans biofilm formed on flat-bottom microplates and denture base specimens based on the reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT); and (3) scanning electron microscopy, to evaluate the fungal biofilm morphology. The solution showed antimicrobial action against the pathogens tested (C. albicans - MIC and MFC: 19.53 µg ml-1, S. aureus - MIC and MBC: 78.12 µg ml-1, P. aeruginosa - MIC: 625 µg ml-1, MBC: 2,500 µg ml-1), reduced the metabolic activity of C. albicans biofilm up to 97%, and caused cell wall damage at low concentrations (195.3-390.6 µg ml-1) and in short time periods (20 min). Therefore, the experimental solution has the potential to be used as an alternative in the prevention and treatment of denture-induced infections.
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Affiliation(s)
- Joel Oliveira Barreto
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry, and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Francisca Bruna Stefany Aires do Nascimento
- Department of Clinical & Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza, Brazil
| | | | - Letícia Serpa Sampaio
- Department of Clinical & Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza, Brazil
| | - Cecília Rocha da Silva
- Department of Clinical & Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza, Brazil
| | - João Batista de Andrade Neto
- Department of Clinical & Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza, Brazil
| | - Hélio Vitoriano Nobre Júnior
- Department of Clinical & Toxicological Analysis, School of Pharmacy, Laboratory of Bioprospection in Antimicrobial Molecules (LABIMAN), Federal University of Ceará, Fortaleza, Brazil
| | - Rômulo Rocha Regis
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry, and Nursing, Federal University of Ceará, Fortaleza, Brazil
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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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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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Bitencourt SB, Catanoze IA, da Silva EVF, Dos Santos PH, Dos Santos DM, Turcio KHL, Guiotti AM. Effect of acidic beverages on surface roughness and color stability of artificial teeth and acrylic resin. J Adv Prosthodont 2020; 12:55-60. [PMID: 32377317 PMCID: PMC7183855 DOI: 10.4047/jap.2020.12.2.55] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 03/04/2020] [Accepted: 03/12/2020] [Indexed: 12/12/2022] Open
Abstract
PURPOSE The aim was to evaluate the effect of four acidic beverages on the roughness (Ra) and color change (ΔEab) of two brands of artificial teeth and a heat-polymerized acrylic resin (HPAR) for use in a prosthetic base. MATERIALS AND METHODS All materials were divided into 5 groups, according to the used acidic beverage (artificial saliva - control, red wine, orange juice, coke-based, and lemon juice-based soft drink). The immersion process was divided into two stages: T1 - immersion in the acidic solutions for 10 minutes for 14 days; T2 - after T1, the samples were immersed in grape juice for 14 days. The Ra of the samples was evaluated in a rugosimeter and the ΔEab in a spectrophotometer, before and after the immersions. The analysis of variance of one (ΔEab) and two factors (Ra) and Tukey were performed (α=.05). RESULTS There was a statistical difference for roughness after immersion (T1) for Trilux and Tritone teeth, regardless of the acid solution. For Trilux teeth, all acid solutions increased Ra (P<.05). For Tritone teeth, only the coke-based soft drink did not statistically change Ra. Grape juice (T2) altered Ra only of artificial teeth (P<.05). The color was changed for all materials, after T1 and T2. CONCLUSION In general, the acidic solutions changed the Ra and ΔEab of HPAR and artificial teeth after T1. The grape juice altered the roughness only of the artificial teeth, promoting a clinically acceptable color change in the materials.
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Affiliation(s)
- Sandro Basso Bitencourt
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
| | - Isabela Araguê Catanoze
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
| | - Emily Vivianne Freitas da Silva
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
| | - Paulo Henrique Dos Santos
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
| | - Daniela Micheline Dos Santos
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
| | - Karina Helga Leal Turcio
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
| | - Aimée Maria Guiotti
- Department of Dental Materials and Prosthodontics, São Paulo State University (UNESP), School of Dentistry, São Paulo, Brazil
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Properties of an acrylic resin after immersion in antiseptic soaps: Low-cost, easy-access procedure for the prevention of denture stomatitis. PLoS One 2018; 13:e0203187. [PMID: 30161256 PMCID: PMC6117035 DOI: 10.1371/journal.pone.0203187] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 08/14/2018] [Indexed: 01/22/2023] Open
Abstract
Denture stomatitis triggered by Candida species requires better preventive measures. This study evaluated the physical and biological properties of a denture base acrylic resin after immersion in antiseptic soaps. Acrylic resin specimens were prepared and stored in distinct solutions for 0, 7, 14, 21, and 28 days. The solutions were as follows: DW: distilled water at 37°C (control group); DS: cycles of daily immersion in Dettol soap for 8 hours at room temperature, followed by immersion in distilled water for 16 hours at 37°C; PS: cycles of daily immersion in Protex soap, as described for the previous group; LS: cycles of daily immersion in Lifebuoy soap, as described for the DS group. The parameters evaluated at each time point were the following: biofilm formation capacity by Candida albicans and reduction of preformed fungal biofilms, cytotoxicity, surface roughness, hardness, and color change. For the fungal adhesion phase, the type of soap had a statistically significant effect (p = 0.0292), but after 24 hours, no differences were found between solutions or between storage times. Regarding the efficacy of biofilm reduction, there was a significant difference when the groups were compared to each other (p = 0.014). Dettol and Lifebuoy eliminated the preformed biofilm on the specimens. Moreover, all the soaps were classified as non-cytotoxic (on HaCaT cell line) because there was no difference in cell viability between the different groups, except after 21 days, when a decrease in cell viability occurred, regardless of the type of soap. Regarding the roughness, there was no statistically significant difference (p > 0.05) between the groups. Lifebuoy decreased resin hardness regardless of storage time (p = 0.003). After 21 and 28 days of storage, there was an increase in hardness value, regardless of the type of soap. The specimens’ color, according to the National Bureau of Standards values, ranged from 0.27 to 0.58 (i.e., imperceptible or mild color changes). In general, the disinfectant soaps were not able to prevent biofilm formation, but all the soaps were effective in reducing the preformed biofilm. In addition, all soaps were non-cytotoxic and did not change surface roughness, hardness (except Lifebuoy), and color (except Lifebuoy). Therefore, immersion in two antiseptic soaps (Protex and Dettol) may be a cheap and easy procedure for preventing denture stomatitis.
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Fortes CBB, Collares FM, Leitune VCB, Schiroky PR, Rodrigues SB, Samuel SMW, Petzhold CL, Stefani V. Effect of disinfection techniques on physical-mechanical properties of a microwave-activated acrylic resin. POLIMEROS 2018. [DOI: 10.1590/0104-1428.004616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Koseki Y, Tanaka R, Murata H. Development of antibacterial denture cleaner for brushing containing tea tree and lemongrass essential oils. Dent Mater J 2018; 37:659-666. [PMID: 29731487 DOI: 10.4012/dmj.2017-295] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We evaluated effectiveness of tea tree oil (TO) and lemongrass oil (LO) for removal of Candida biofilm from denture base resin and their influence on that surface. Biofilm of C. albicans was formed on resins, and immersed in various concentrations of each oil and distilled water (DW). The biofilm removal effect was determined by incubating specimens in RPMI medium containing Alamar blue (AB) and measuring absorbance. Wear test was also conducted, and surface condition of resins was determined using laser scanning microscope and digital microscope. Specimens immersed in the TO and LO solutions tended to have a lower AB value at higher concentrations and longer soaking times. Use of these agents resulted in less surface roughness as compared to DW. Our results suggest that TO and LO were valid to remove biofilm attached to resin with lower levels of abrasion, and these are effective for use in denture cleaner.
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Affiliation(s)
- Yusaku Koseki
- Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University
| | | | - Hiroshi Murata
- Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University
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Zoidis P, Polychronakis N, Lagouvardos P, Polyzois G, Ngo HC. Evaluation of a Realistic Cleansing Protocol for Preventing Discoloration of Denture Resins. J Prosthodont 2018; 28:e89-e95. [PMID: 29468768 DOI: 10.1111/jopr.12763] [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: 11/16/2017] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To evaluate the efficacy of a realistic staining/cleansing protocol for long-term prevention of discoloration of denture base resins. MATERIALS AND METHODS Sixty discs (20 × 2.5 mm) of auto- and heat-polymerizing denture acrylic resins were fabricated following manufacturer's instructions, polished on one side and stored in water (37°C) for 24 hours before they were assigned randomly into 6 groups (3 for each material, n = 10) to receive 220 cycles of three immersion protocols. Group A was immersed in the following baths: (1) filtered coffee at 45°C for 2 minutes, (2) tap water at 24°C for 20 seconds, (3) as bath 1, (4) as bath 2, (5) Corega Extradent cleansing solution at 45°C for 3 minutes, and (6) water at 24°C for 20 seconds. Group B was immersed in the four first baths of group A (without cleansing action) and group C in bath 1 for the cumulative action of 20 cycles (80 minutes in 45°C coffee) and bath 2 for 40 seconds. A noncontact optical interferometric profilometer was used for qualitative evaluation of the specimens and a contact colorimeter to estimate color change values (ΔΕ*ab) at baseline and every 20 cycles in the baths for a total of 220 cycles. Data were statistically analyzed using a 2-way-repeated measures ANOVA with Bonferoni multiple comparisons and trend analysis at α = 0.05 level of significance. RESULTS Data indicated changes in color from 1.7 to 14.2 ΔΕ*ab units. The highest values were related to the number of cycles and group B immersion protocol. Significant differences were found among immersion protocols (p < 0.001) and immersion cycles (p < 0.001) with a significant interaction between protocols and cycles (p < 0.001) but not between denture resins (p = 0.991). CONCLUSION The evaluated protocol A was found effective in preventing color changes in both denture resins even after a long period of action. Protocol C had a much lower staining effect on both resins than protocol B and behaved similarly to protocol A until 140 to 160 cycles. Therefore, it is probably not appropriate for use in short-term color stability experiments.
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Affiliation(s)
- Panagiotis Zoidis
- Department of Prosthodontics, Dental School, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Polychronakis
- Department of Prosthodontics, Dental School, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Lagouvardos
- Department of Operative Dentistry, Dental School, National and Kapodistrian University of Athens, Athens, Greece
| | - Gregory Polyzois
- Department of Prosthodontics, Dental School, National and Kapodistrian University of Athens, Athens, Greece
| | - Hien Chi Ngo
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjha, Sharjha, United Arab Emirates
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Köroğlu A, Şahin O, Dede DÖ, Deniz ŞT, Karacan Sever N, Özkan S. Efficacy of denture cleaners on the surface roughness and Candida albicans adherence of sealant agent coupled denture base materials. Dent Mater J 2017; 35:810-816. [PMID: 27725519 DOI: 10.4012/dmj.2016-103] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study investigated the effect of denture cleansers on the surface roughness and Candida albicans adherence of surface sealant agent coupled denture base resins. One hundred and twenty specimens were fabricated from 2 polymethyl methacrylate (PMMA) (Meliodent; Acron MC) and 1 polyamide (Deflex) denture base materials, coated with a sealant agent (Palaseal) and divided into 4 groups (n=10) according to overnight cleaning procedures: distilled water (control), 5% sodium hypochlorite (NaOCl) and two different sodium perborate (Corega; Rapident). The surface roughness values were measured with a profilometer before (Ra0) and after 90 days immersion in denture cleaners (Ra1). Specimens were incubated with Candida albicans suspension and Candida colony- forming units (CFU) (Cfu/mm) were counted. Significant differences were found, between the Ra0 and Ra1 values of 5% NaOCl applied Acron MC, Deflex and also Rapident applied Deflex groups (p<0.05). Denture cleaning procedures had no significant effects on the quantitiy of Candida albicans.
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Affiliation(s)
- Ayşegül Köroğlu
- Department of Prosthodontics, Faculty of Dentistry, Bulent Ecevit University
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Shankar T, Gowd S, Suresan V, Mantri S, Saxena S, Mishra P, Panday P. Denture Hygiene Knowledge and Practices among Complete Denture Wearers attending a Postgraduate Dental Institute. J Contemp Dent Pract 2017; 18:714-721. [PMID: 28816196 DOI: 10.5005/jp-journals-10024-2113] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
AIMS The aim of this study was to assess the denture hygiene knowledge and practices among patients using complete dentures attending a postgraduate dental hospital in Jabalpur city. The objective of this study was to assess the relationship between hygiene knowledge and practices to the denture wearer's gender, education, and income. MATERIALS AND METHODS A descriptive, cross-sectional survey was conducted using a self-administered questionnaire involving the complete denture patients attending the Department of Prosthodontics. The study subjects were randomly selected by recruiting old dentures wearers visiting the Department of Prosthodontics for a recall visit or for new dentures on the odd dates of the month. All subjects signed an informed consent before filling the questionnaire. The institutional review committee approved the study. Descriptive statistics included computation of frequencies and percentages. Nonparametric test, namely, chi-square test, was used for further data analysis; p-value <0.05 was considered statistically significant. RESULTS A total of 530 individuals were approached for participation in our survey, 30 (5.66%) subjects declined to participate. The results showed that 195 (39%) subjects were wearing the same dentures for more than 5 years. In this study, 51 (10.2%) subjects reported never having been advised by their dentists as to how to clean their dentures. Among all the subjects interviewed, 264 (52.8%) reported to clean the oral tissues daily. This study disclosed that 66 (13.2%) of the subjects usually slept with their dentures. Maximum subjects in illiterate group had experienced bad breath sometimes when compared with subjects in postgraduate group (χ2 = 47.452, p < 0.001). There was a significant difference for method of denture cleaning according to gender (χ2 = 101.076, p < 0.001). CONCLUSION The majority of the denture wearers have limited knowledge of denture cleansing and oral hygiene practices. Hygiene habits and practices may not always present a positive correlation with the gender, educational level, and income of the subjects. CLINICAL SIGNIFICANCE Periodic recall for evaluation of denture and mucosal surfaces along with reinforcement of denture hygiene instructions will go a long way in helping the patients reap maximum benefits out of their prostheses.
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Affiliation(s)
- Thatapudi Shankar
- Department of Prosthodontics, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar, Odisha, India
| | - Snigdha Gowd
- Department of Dento-facial Orthopaedics and Orthodontics Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar Odisha, India
| | - Vinay Suresan
- Department of Public Health Dentistry, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar, Odisha, India, Phone: +918763799695 e-mail:
| | - Sneha Mantri
- Department of Prosthodontics, Hitkarini Dental College & Hospital, Jabalpur, Madhya Prades, India
| | - Sudhanshu Saxena
- Department of Public Health Dentistry, Hazaribagh Dental College & Hospital, Hazaribagh, Jharkhand, India
| | - Prateek Mishra
- Department of Prosthodontics, Hitkarini Dental College & Hospital, Jabalpur, Madhya Prades, India
| | - Pragya Panday
- Department of Prosthodontics, Guru Gobind Singh College & Hospital, Bhuranpur, Madhya Pradesh, India
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MOURA CDVSD, VASCONCELOS US, SILVA TSDO, SILVA ÂARID, MARANDUBA ECCSA, PACHECO DDS, MESQUITA ABDS. Análise da eficácia antimicrobiana do ácido peracético na desinfecção de moldes de hidrocoloide irreversível. REVISTA DE ODONTOLOGIA DA UNESP 2016. [DOI: 10.1590/1807-2577.27915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Resumo Introdução Nos últimos anos, o ácido peracético tem sido utilizado na Odontologia para desinfecção de moldes de hidrocoloide irreversível. Objetivo Avaliar a eficácia antimicrobiana do ácido peracético nas técnicas de nebulização e pulverização, em moldes de hidrocoloide irreversível. Material e método Oitenta moldes de hemiarcos de voluntários foram distribuídos aleatoriamente em quatro grupos experimentais (n=20), com respectivos controles. Os moldes foram submetidos à desinfecção por dez minutos com ácido peracético 0,2% e hipoclorito de sódio 1%, pelos métodos de nebulização, com atmosfera de 100% de umidade relativa, e pulverização. Após desinfecção, cada molde foi imerso em solução salina e submetido à vibração ultrassônica para dispersão de possíveis microrganismos. Para análise microbiológica desta solução, foi realizada contagem de colônias que cresceram em meio de cultura estéril BHI-ágar após 24 h em estufa incubadora a 37°C. Resultado Em todos os grupos, foi significante a diferença no número médio de colônias decorrentes da análise estatística do controle e do grupo experimental correspondente (p<0,05). Comparando-se o ácido peracético (0,2%) nos dois métodos, não houve diferença significativa (p=0,420); no entanto, comparando-se o hipoclorito de sódio (1%) nos dois métodos, a diferença foi estatisticamente significante (p=0,010). No mesmo método e com soluções diferentes, a nebulização com ácido peracético 0,2% foi mais eficaz que o hipoclorito de sódio 1% (p=0,030). Conclusão Ácido peracético 0,2% pode ser usado para desinfecção de moldes de hidrocoloide irreversível nos métodos de pulverização e nebulização. Hipoclorito de sódio 1% mostrou ser mais eficaz quando se usou o método de pulverização.
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Badaró MM, Salles MM, de Arruda CNF, Oliveira VDC, de Souza RF, Paranhos HFO, Silva-Lovato CH. In Vitro Analysis of Surface Roughness of Acrylic Resin Exposed to the Combined Hygiene Method of Brushing and Immersion in Ricinus communis and Sodium Hypochlorite. J Prosthodont 2016; 26:516-521. [PMID: 26833793 DOI: 10.1111/jopr.12436] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2015] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To evaluate a solution based on Ricinus communis (Castor oil) for denture cleansing, comparing it to sodium hypochlorite (NaOCl) for the surface roughness of heat-polymerized acrylic resin. MATERIALS AND METHODS Forty polished and unpolished resin specimens (90 × 30 × 4 mm) were evaluated before and after their exposure to protocol hygiene: brushing the specimens with a specific denture brush and mild soap for 3 minutes, three times a day, and immersing them in hygiene solutions (0.25% NaOCl-S1 and 0.5% NaOCl-S2; 10% R. communis-S3; saline-S4: control) for 20 minutes. Surface roughness was evaluated by rugosimeter and scanning electron microscopy (SEM) before and after the protocol. For evaluation of surface roughness, polished and unpolished surfaces were used. RESULTS The roughness of the polished surface was not affected by time (p = 0.062), but was affected by solutions (p < 0.0001) and the interaction between factors (p = 0.005). For S1 and S4, the period did not influence the roughness. For S2, there was a change after 7 days, remaining stable after 14 days. For S3, there were changes, and stabilization occurred after 14 days. After 7 and 14 days, S2 and S3 promoted major changes, but after 21 days, there were no differences among solutions, except saline. The unpolished surface was not influenced by factors: period (p = 0.115), solution (p = 0.120), and their interaction (p = 0.382). SEM analysis showed similar results on the evaluation of surface roughness. CONCLUSIONS The polished surface of the prosthesis was more susceptible to changes when exposed to hygiene solutions, and although the 0.5% NaOCl solution promoted an increase in the surface roughness compared with the same solution at 0.25% and R. communis at 10%, the values are clinically acceptable.
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Affiliation(s)
| | - Marcela Moreira Salles
- School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | | | - Raphael Freitas de Souza
- School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Effects of thermal cycling on surface roughness, hardness and flexural strength of polymethylmethacrylate and polyamide denture base resins. J Appl Biomater Funct Mater 2015; 13:e280-6. [PMID: 26350350 DOI: 10.5301/jabfm.5000236] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2015] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The purpose of this study was to evaluate the effects of thermal cycling on the surface roughness, hardness and flexural strength of denture resins. METHODS Polyamide (PA; Deflex and Valplast) and polymethylmethacrylate (PMMA; QC-20 and Acron MC) denture materials were selected. A total of 180 specimens were fabricated and then divided into 3 groups. The first group (group 1) acted as a control and was not thermocycled. The second group (group 2) was subjected to thermocycling for 10,000 cycles in artificial saliva and 5,000 cycles in distilled water. The last group (group 3) was thermocycled for 20,000 cycles in artificial saliva and 10,000 cycles in distilled water. The surface roughness were measured with a profilometer. The hardness of the resins were measured with a Vickers Hardness Tester using a 100-gf load. The flexural strength test was performed using the universal test machine with a crosshead speed of 5 mm/min. Data were analyzed using statistical software. The results of the measurements in the 3 different tests were analyzed by Kruskal-Wallis test with Bonferroni correction. Multiple comparisons were made by Conover and Wilcoxon tests. RESULTS AND CONCLUSIONS There was a significant difference between the PMMA and PA groups in terms of surface roughness, hardness and transverse strength before and after thermal cycling (p<0.001). Thermal cycling did not change the surface roughness, hardness and flexural strength values of either the PMMA or PA group (p>0.001).
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Pithon MM, Ferraz CS, Rosa FCS, Rosa LP. Sterilizing elastomeric chains without losing mechanical properties. Is it possible? Dental Press J Orthod 2015; 20:96-100. [PMID: 26154462 PMCID: PMC4520144 DOI: 10.1590/2176-9451.20.3.096-100.oar] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 09/26/2014] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To investigate the effects of different sterilization/disinfection methods on the mechanical properties of orthodontic elastomeric chains. METHODS Segments of elastomeric chains with 5 links each were sent for sterilization by cobalt 60 (Co60) (20 KGy) gamma ray technology. After the procedure, the elastomeric chains were contaminated with clinical samples of Streptococcus mutans. Subsequently, the elastomeric chains were submitted to sterilization/disinfection tests carried out by means of different methods, forming six study groups, as follows: Group 1 (control - without contamination), Group 2 (70°GL alcohol), Group 3 (autoclave), Group 4 (ultraviolet), Group 5 (peracetic acid) and Group 6 (glutaraldehyde). After sterilization/disinfection, the effectiveness of these methods, by Colony forming units per mL (CFU/mL), and the mechanical properties of the material were assessed. Student's t-test was used to assess the number of CFUs while ANOVA and Tukey's test were used to assess elastic strength. RESULTS Ultraviolet treatment was not completely effective for sterilization. No loss of mechanical properties occurred with the use of the different sterilization methods (p > 0.05). CONCLUSION Biological control of elastomeric chains does not affect their mechanical properties.
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Affiliation(s)
- Matheus Melo Pithon
- Professor of Orthodontics, Universidade Estadual do Sudoeste da Bahia
(UESB), Jequié, Bahia, Brazil
| | - Caio Souza Ferraz
- Undergraduate student in Dentistry, Universidade Estadual do Sudoeste da
Bahia (UESB), Jequié, Bahia, Brazil
| | | | - Luciano Pereira Rosa
- Professor of Radiology, Universidade Federal da Bahia (UFBA), Vitória da
Conquista, Bahia, Brazil
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Sczepanski F, Sczepanski CRB, Berger SB, Consani RLX, Gonini-Júnior A, Guiraldo RD. Effect of sodium hypochlorite and peracetic acid on the surface roughness of acrylic resin polymerized by heated water for short and long cycles. Eur J Dent 2014; 8:533-537. [PMID: 25512737 PMCID: PMC4253112 DOI: 10.4103/1305-7456.143638] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To evaluate the surface roughness of acrylic resin submitted to chemical disinfection via 1% sodium hypochlorite (NaClO) or 1% peracetic acid (C2H4O3). MATERIALS AND METHODS The disc-shaped resin specimens (30 mm diameter ×4 mm height) were polymerized by heated water using two cycles (short cycle: 1 h at 74°C and 30 min at 100°C; conventional long cycle: 9 h at 74°C). The release of substances by these specimens in water solution was also quantified. Specimens were fabricated, divided into four groups (n = 10) depending on the polymerization time and disinfectant. After polishing, the specimens were stored in distilled deionized water. Specimens were immersed in 1% NaClO or 1% C2H4O3 for 30 min, and then were immersed in distilled deionized water for 20 min. The release of C2H4O3 and NaClO was measured via visual colorimetric analysis. Roughness was measured before and after disinfection. Roughness data were subjected to two-way ANOVA and Tukey's test. RESULTS There was no interaction between polymerization time and disinfectant in influencing the average surface roughness (Ra, P = 0.957). Considering these factors independently, there were significant differences between short and conventional long cycles (P = 0.012), but no significant difference between the disinfectants hypochlorite and C2H4O3 (P = 0.366). Visual colorimetric analysis did not detect release of substances. CONCLUSION It was concluded that there was the difference in surface roughness between short and conventional long cycles, and disinfection at acrylic resins polymerized by heated water using a short cycle modified the properties of roughness.
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Affiliation(s)
- Felipe Sczepanski
- Department of Restorative Dentistry, School of Dentistry, University North of Parana (UNOPAR), Londrina, PR, Brazil
| | | | - Sandrine Bittencourt Berger
- Department of Restorative Dentistry, School of Dentistry, University North of Parana (UNOPAR), Londrina, PR, Brazil
| | - Rafael Leonardo Xediek Consani
- Department of Prosthodontics and Periodontics, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP, Brazil
| | - Alcides Gonini-Júnior
- Department of Restorative Dentistry, School of Dentistry, University North of Parana (UNOPAR), Londrina, PR, Brazil
| | - Ricardo Danil Guiraldo
- Department of Restorative Dentistry, School of Dentistry, University North of Parana (UNOPAR), Londrina, PR, Brazil
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Cortelli SC, Costa FO, Rode SDM, Haas AN, Andrade AKPD, Pannuti CM, Escobar EC, Almeida ERD, Cortelli JR, Pedrazzi V. Mouthrinse recommendation for prosthodontic patients. Braz Oral Res 2014; 28 Spec No:S1806-83242014000200201. [PMID: 25003786 DOI: 10.1590/1807-3107bor-2014.vol28.0020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Accepted: 04/16/2014] [Indexed: 11/21/2022] Open
Abstract
Different reasons can contribute to classifying dental prosthesis wearers as high-risk individuals in relation to dental biofilm accumulation. These include a past history of oral disease, age and additional retentive areas. Other common complaints include inflammation and halitosis. Moreover, prosthesis replacement and prosthetic pillar loss are generally associated with caries and periodontal disease recurrence. Therefore, the present study undertook to make a critical review of the literature, aiming at discussing the main aspects related to chemical agent prescriptions for dental prosthesis wearers. Most of the articles were selected based on relevance, methods and availability in regard to the specific subject under investigation, without considering publication year limitations. Different types of prostheses and their impact on teeth and other oral tissues were reported. It was demonstrated that there is greater biofilm buildup and increased inflammatory levels in the presence of different types of prostheses, suggesting that additional measures are required both on population-wide and individual levels in order to control these factors. Mechanical control consists of a combination of manual or electric toothbrush and toothpaste, as well as specific devices for interdental cleaning. Although many chemical agents exhibit antimicrobial benefits when used for prosthesis disinfection, only a few agents can be used safely without causing damage. Regarding the selection of antiseptics by the overall population, chlorhexidine is the most indicated in the short term and in sporadic cases. The most indicated adjuncts to overcome the deficiencies and limitations of daily mechanical biofilm control are products containing essential oils as active ingredients.
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Affiliation(s)
- Sheila Cavalca Cortelli
- Periodontology Department, School of Dentistry, Universidade de Taubaté, Taubaté, SP, Brazil
| | - Fernando Oliveira Costa
- Periodontology Department, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Sigmar de Mello Rode
- Dental Materials and Prosthesis Department, Instituto de Ciência e Tecnologia, Univ Estadual Paulista, São José dos Campos, SP, Brazil
| | - Alex Nogueira Haas
- Periodontology Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rio Grande do Sul, RS, Brazil
| | | | - Claudio Mendes Pannuti
- Periodontology Department, School of Dentistry, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Elaine Cristina Escobar
- Periodontology Department, School of Dentistry, Faculdades Metropolitanas Unidas, São Paulo, SP, Brazil
| | - Eliete Rodrigues de Almeida
- Epidemiology and Pediatric Dentistry Department, School of Dentistry, Universidade Cruzeiro do Sul, São Paulo, SP, Brazil
| | - José Roberto Cortelli
- Periodontology Department, School of Dentistry, Universidade de Taubaté, Taubaté, SP, Brazil
| | - Vinicius Pedrazzi
- Endodontics and Prosthesis Department, Faculdade de Odontologia de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
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Piskin B, Sipahi C, Akin H. Effect of Different Chemical Disinfectants on Color Stability of Acrylic Denture Teeth. J Prosthodont 2014; 23:476-83. [DOI: 10.1111/jopr.12131] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2013] [Indexed: 11/27/2022] Open
Affiliation(s)
- Bulent Piskin
- Associate Professor, Department of Prosthodontics; Gulhane Military Medical Academy; Ankara Turkey
| | - Cumhur Sipahi
- Associate Professor, Department of Prosthodontics; Gulhane Military Medical Academy; Ankara Turkey
| | - Hakan Akin
- Associate Professor, Department of Prosthodontics; Faculty of Dentistry, Cumhuriyet University; Sivas Turkey
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