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Elrahim RAA, Shown A, Abdellah M, Abualsaud R, Helal MA. Impact of different chemical denture cleansers on the properties of digitally fabricated denture base resin materials. J Prosthodont 2024; 33:691-699. [PMID: 37767991 DOI: 10.1111/jopr.13761] [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: 11/28/2022] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
PURPOSE To compare the impact of three different chemical denture cleansers (CDCs) (Corega, chlorhexidine, and hydrogen peroxide) on the surface roughness, microhardness, and color stability of 3D-printed, computer-aided design and computer-aided manufacturing (CAD-CAM) milled, and heat-polymerized denture base material (DBM). MATERIALS AND METHODS A total of 420 disc-shaped specimens (10 ± 0.1 × 2 ±0.1 mm) were fabricated using three different construction techniques: three-dimensional (3D) printing (n = 140), CAD-CAM milling (n = 140), and heat-polymerization (n = 140). Sixty specimens (20 of each DBM) were used for baseline (pre-immersion) measurements (T1) for the tested surface properties (hardness [n = 10/material] and roughness [n = 10/material]). The remaining 360 specimens (n = 120/material) were investigated for surface roughness, microhardness, and color change after immersion for 1 year (T2) in distilled water or CDCs (n = 30/solution and n = 10/test). The data were analyzed using two-way ANOVA, one-way ANOVA followed by post-hoc Tukey's test at a significance level of less than 0.05. RESULTS Significant differences were observed in the effects of the tested CDCs on the surface roughness, micro-hardness, and color stability of varying DBM specimens (p < 0.05). Corega showed the highest surface roughness and color change in all DBMs while H2O2 resulted in the lowest microhardness for all DBMs. The lowest changes in all tested properties were seen with distilled water followed by chlorhexidine. A significant effect of type of cleanser, denture base material, and the interaction between the two was seen on all measured properties (p < 0.05). CONCLUSIONS The tested CDCs significantly affected the surface properties of all DBMs but at varying degrees. Corega produced the highest negative effect on roughness and color change while H2O2 dramatically affected the microhardness. Prolonged use of CDCs should be cautiously followed.
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Affiliation(s)
| | - Ahmed Shown
- Department of Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt
- Al Mouwasat Hospital, Al Madinah Al Mounawarah, KSA
| | - Mahmoud Abdellah
- Department of Dental Biomaterials, Faculty of Dental Medicine, Al-Azhar University, Assuit, Egypt
| | - Reem Abualsaud
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mohamed Ahmed Helal
- Department of Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt
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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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Kalyoncuoğlu ÜT, Atik E. Impact of effervescent denture cleaning tablets on color and surface characteristics of additively manufactured and hand-cast splint materials. Clin Oral Investig 2023; 28:54. [PMID: 38157078 DOI: 10.1007/s00784-023-05433-0] [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: 09/02/2023] [Accepted: 11/20/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVES This study is to evaluate the color stability, surface roughness, and hardness of additively manufactured and hand-cast splint materials after a 6-month commercially available denture cleaning tablet immersion simulation. MATERIALS AND METHODS Disc-shaped additively manufactured and hand-cast auto polymerizing acrylic resin specimens were prepared (N = 40 each). All specimens were exposed to coffee solution totally 2 days. Thereafter, all specimens were immersed into three different effervescent solutions that simulated 6 months of clinical use. The total color change (ΔE*ab), surface roughness (Ra), and Vickers hardness (Vh) were measured at baseline and after immersion protocols. A two-way ANOVA and Bonferroni's post hoc test were used for color change. The dependent t-test and ANOVA were used for roughness and hardness evaluation. RESULTS Additively manufactured splint materials were more affected by coffee immersion. It was observed that all denture cleaning tablets induced a noticeable alteration in color of the specimens (p < 0.05). Roughness and hardness measurement changes after solution immersions were statistically significant for both splint groups (p < 0.05). On the other hand, distilled water and denture cleaning tablets created similar roughness and hardness measurements at baseline and after immersion. CONCLUSIONS After 6 months use of tested cleaning tables, the color stability, surface roughness, and hardness of both groups were affected. The evaluation of the surface properties of splint materials could be recommended to the dentists in periodic controls during splint treatments. CLINICAL RELEVANCE The use effervescent denture cleaning tablets altered the surface characteristics of tested splint materials over time with nonsignificant difference between each other. After 6 months, awareness should be raised about surface characteristics of splint materials.
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Affiliation(s)
- Ülkü Tuğba Kalyoncuoğlu
- Department of Prosthodontics, Gülhane Faculty of Dentistry, University of Health Science, 06018 Emrah Mah., Etlik, Keçiören, Ankara, Turkey.
| | - Ezgi Atik
- Department of Orthodontics, Faculty of Dentistry, Hacettepe University, 06230Sıhhiye, Altındağ, Ankara, Turkey
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Teixeira ÉF, Girundi ALG, Alexandrino LD, Morel LL, de Almeida MVR, Dos Santos VR, Fraga S, da Silva WJ, Mengatto CM. Effects of disinfection with a vinegar-hydrogen peroxide mixture on the surface characteristics of denture acrylic resins. Clin Oral Investig 2023; 28:45. [PMID: 38153515 DOI: 10.1007/s00784-023-05405-4] [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: 09/22/2023] [Accepted: 12/02/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE This study aimed to investigate changes in the surface characteristics of two denture resins when disinfected with a vinegar-hydrogen peroxide (VHP) mixture. MATERIALS AND METHODS Microwave-polymerized or 3D printed acrylic resin disks were immersed for 900 min (simulating 90 daily uses) in the following solutions (N = 10): water; 0.5% sodium hypochlorite; hydrogen peroxide and water dilution (1:1 ratio); vinegar and water dilution (1:1 ratio); and VHP mixture. Surface roughness, Knoop microhardness, surface free energy, and scanning electron microscopic images were assessed before and after the immersions. Results were compared using the 2-way ANOVA for repeated measures and Tukey test, at 5% significance. RESULTS Surface roughness and microhardness did not differ (P > .05) among the solutions and times. Surface free energy and its dispersive component increased (P < .05) for all solutions. All solutions, except for water and VHP mixture, degraded microtopography. CONCLUSIONS The VHP mixture was not deleterious to conventional and 3D-printed resin surfaces. CLINICAL RELEVANCE Conventional and 3D printed resin dentures can be disinfected with a VHP mixture in a 1:1 ratio because this mixture does not substantially affect the surface characteristics after 90 daily immersions. On the contrary, sodium hypochlorite, hydrogen peroxide, and vinegar solutions, even in low concentrations, should be used with caution for denture disinfection because they may alter the resin microtopography over time.
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Affiliation(s)
- Érico Fabbro Teixeira
- School of Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ana Luíza Gonçalves Girundi
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, Brazil
| | - Larissa Dolfini Alexandrino
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, Brazil
| | - Laura Lourenço Morel
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, Brazil
| | - Marcus Vinicius Rocha de Almeida
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, Brazil
| | - Vinicius Rodrigues Dos Santos
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, Brazil
| | - Sara Fraga
- Division of Prosthodontics, Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Brazil
| | - Wander José da Silva
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Av. Limeira, 901, Piracicaba, Sao Paulo, Brazil
| | - Cristiane Machado Mengatto
- Division of Prosthodontics, Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Rua Ramiro Barcelos, 2492, Porto Alegre, Rio Grande do Sul, Brazil.
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Nunes TSBS, Silva MDDD, Coelho SRG, Viotto HEDC, Pero AC. Effectiveness of disinfectant solutions associated or not with brushing on the biofilm control of a 3D printed-denture base resin. J Appl Oral Sci 2023; 31:e20230104. [PMID: 37466551 DOI: 10.1590/1678-7757-2023-0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/12/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND The formation of biofilm on denture bases is a recurrent clinical problem that favors the development of denture stomatitis. The effectiveness of a hygiene protocol in a 3D-printed denture base resin is still uncertain. OBJECTIVE To evaluate of the effectiveness of immersion, associated or not with brushing in a soap solution, on the biofilm control of a 3D-printed denture base resin. METHODOLOGY Specimens of denture base resins [Cosmos Denture (COS) and Classico (CLA/control)] were contaminated in vitro with Candida albicans and immersed in sodium hypochlorite 0.25% (SH, alkaline peroxide) AP, chlorhexidine digluconate 2% (CD or PBS-Control), associated or not with brushing with 0.78% Lifebuoy soap. Roughness was evaluated before and after brushing and immersion. The effectiveness of the protocols was assessed by CFU/mL, cellular metabolism (XTT), scanning electron microscopy (SEM), and confocal scanning laser microscopy. Data were analyzed by T student, ANOVA/Welch, and Tukey/Gomes-Howell pos-hoc tests (α = 0.05). RESULTS CLA showed greater roughness than COS. CFU/mL and XTT were higher in COS resin with a higher hyphae formation. Immersion in SH and CD eliminated CFU/mL and reduced XTT for both resins, associated or not with brushing. AP reduced CFU/mL only when associated with brushing. CONCLUSIONS The biofilm on the 3D-printed resin was thicker and presumably more pathogenic, regardless of its smoother surface. Immersions in SH 0.25% and CD 2% are effective hygiene protocols for both resins, associated or not with brushing. AP should be recommended when associated with brushing with a Lifebuoy 0.78% solution.
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Affiliation(s)
- Thaís Soares Bezerra Santos Nunes
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Departamento de Materiais Dentários e Prótese, Araraquara, São Paulo, Brasil
| | - Marcela Dantas Dias da Silva
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Departamento de Materiais Dentários e Prótese, Araraquara, São Paulo, Brasil
| | - Sabrina Romão Gonçalves Coelho
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Departamento de Materiais Dentários e Prótese, Araraquara, São Paulo, Brasil
| | - Hamile Emanuella do Carmo Viotto
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Departamento de Materiais Dentários e Prótese, Araraquara, São Paulo, Brasil
| | - Ana Carolina Pero
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia, Departamento de Materiais Dentários e Prótese, Araraquara, São Paulo, Brasil
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AlRumaih HS, Albarrak AA, AlMedaires M, Alsulaiman AA, Baba NZ, Alshahrani FA, Alqarawi FK, Al-Dulaijan YA, Alzoubi F, Alhumaidan AA, Gad MM. Influence of Denture Cleansers on the Retention Loss of Attachment Systems Retained Implant Overdenture. Int J Biomater 2023; 2023:5077785. [PMID: 37159616 PMCID: PMC10163970 DOI: 10.1155/2023/5077785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/10/2023] [Accepted: 04/08/2023] [Indexed: 05/11/2023] Open
Abstract
Background This study aimed to evaluate the effects of different denture cleansing solutions (DCSs) on the retention of Locator and Locator R-Tx attachment systems of implant retained overdentures (IRO). Methods Two part acrylic resin blocks were fabricated, upper part contained metal housing and plastic inserts and lower part contained implant analogs and abutments. Eighty pink plastic inserts (40/attachment, 10/solution) were immersed in Corega, Fittydent, sodium hypochlorite, and water for a time simulating upto 1-year of clinical usage. Acrylic blocks were held on a universal testing machine for a pull-out test to record the dislodgement force. Measurements were conducted after 6 months (T1) and 12 months (T2). One-way ANOVA followed by Tukey's HSD test was used to analyze the results (α = 0.05). Results For both attachments, retention significantly decreased after immersion in different solutions at T2 (P < 0.001). Locator R-Tx attachment in NaOCl showed a significant decrease in retention compared with other solutions at T1. At T2, there was a significant decrease in retention for all DCS compared with water (P < 0.001). Locator R-TX showed higher retention values per solution compared to Locator attachment (P < 0.001). In terms of retention loss %, NaOCl recorded the highest (61.87%) loss, followed by Corega (55.54%) and Fittydent (43.13%), whereas water demonstrated the best retention (16.13%) in both groups. Conclusion Locator R-TX has better retention with different DCS immersion. The loss of retention varied with different types of DCS and NaOCl recorded the highest retention loss. Therefore, denture cleanser selection must be guided by the type of IRO attachment.
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Affiliation(s)
- Hamad S. AlRumaih
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Alhanouf A. Albarrak
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Muneera AlMedaires
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Ahmed A. Alsulaiman
- Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Nadim Z. Baba
- Advanced Dental Education Program in Implant Dentistry, Loma Linda University, School of Dentistry, Loma Linda, CL, USA
| | - Faris A. Alshahrani
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Firas K. Alqarawi
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Yousif A. Al-Dulaijan
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Fawaz Alzoubi
- Department of General Dental Practice, Faculty of Dentistry, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait
| | - Abdulkareem A. Alhumaidan
- Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Mohammed M. Gad
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
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