Effect of Denture Disinfectants on the Mechanical Performance of 3D-Printed Denture Base Materials

Alkaltham, Nora; Aldhafiri, Reem; Al‐Thobity, Ahmad M.; Alramadan, Hassan; Aljubran, Hussain; Ateeq, Ijlal Shahrukh; Khan, Soban Qadir; Akhtar, Sultan; Gad, Mohammed M.

doi:10.3390/polym15051175

Cited by 8 publications

(9 citation statements)

References 57 publications

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“… 38 , 39 Previous studies showed that 3D printed-denture base resins have lower hardness compared to PMMA-based resins. 40 , 41 Alkaltham, et al 41 (2023) found that immersion in alkaline peroxide and sodium hypochlorite 1% for 180 days decreased the Vickers hardness of 3D-printed resins and did not change the hardness of PMMA. Thus, we hypothesize that the lower hardness of the 3D-printed resins, as well as the hardness reduction when these materials are immersed in disinfectant solutions, increases the susceptibility to the adhesion of microorganisms.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of disinfectant solutions associated or not with brushing on the biofilm control of a 3D printed-denture base resin

et al. 2023

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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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Section: Discussionmentioning

confidence: 99%

Effectiveness of disinfectant solutions associated or not with brushing on the biofilm control of a 3D printed-denture base resin

et al. 2023

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“…Our results showed that when selecting a cleaning solution, it is important to consider which cleaning solution will result in the best long-term retention when used with a specific attachment system. For removable dental prostheses wearers, different denture cleansers and cleaning methods were recommended to prevent microbial adhesion and subsequently prevent denture stomatitis occurrences [ 19 , 27 ]. Effervescent denture cleansers (Corega and Fittydent) are most commonly used due to their efficacy in decreasing C. albicans adhesion in addition to its ability in removing light stains and debris loosing from denture surfaces [ 19 , 20 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of Denture Cleansers on the Retention Loss of Attachment Systems Retained Implant Overdenture

AlRumaih

Albarrak

Almedaires

et al. 2023

International Journal of Biomaterials

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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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“…11,19 Biofilm that develops on denture surfaces is to be removed as part of denture care to prevent oral infections. 10 Several CDCs have been investigated for their antimicrobial characteristics in the past. Among these are the readily available and easyto-use alkaline peroxides (Corega), H 2 O 2 , and mouth rinses (CHX).…”

Section: Discussionmentioning

confidence: 99%

“…5 In such cases, chemical denture cleansers (CDCs) are recommended instead of mechanical cleansing. [8][9][10][11] In addition, CDCs alone or in combination with mechanical brushing can be used by denture wearers to prevent microbial infections that frequently cause denture stomatitis. 11 CDCs may come in liquid, powder, or tablet form, [5][6][7] and can be classified according to their constituents and mechanism of action into hypochlorite, peroxides, enzymes, weak acids, and mouth rinses.…”

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confidence: 99%

Impact of different chemical denture cleansers on the properties of digitally fabricated denture base resin materials

Elrahim,

Shown,

Abdellah

et al. 2023

Journal of Prosthodontics

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PurposeTo 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 methodsA 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.ResultsSignificant 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 DW followed by CHX. A significant effect of CDC, DBM, and the interaction between the two was seen on all measured properties (P<0.05).ConclusionsThe 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.This article is protected by copyright. All rights reserved

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Effect of Denture Disinfectants on the Mechanical Performance of 3D-Printed Denture Base Materials

Cited by 8 publications

References 57 publications

Effectiveness of disinfectant solutions associated or not with brushing on the biofilm control of a 3D printed-denture base resin

Effectiveness of disinfectant solutions associated or not with brushing on the biofilm control of a 3D printed-denture base resin

Influence of Denture Cleansers on the Retention Loss of Attachment Systems Retained Implant Overdenture

Impact of different chemical denture cleansers on the properties of digitally fabricated denture base resin materials

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