Antimicrobial effect and the mechanical and surface properties of a self-disinfecting and a chlorhexidine-incorporated Type IV dental stone

Gouveia, Cíntia de Lima; Marques, Iasmin Lima; Maciel, Panmella Pereira; Lima, Jefferson Muniz de; Castellano, Lúcio Roberto Cançado; Bonan, Roberta Ferreti; Bonan, Paulo Rogério Ferreti; Batista, André Ulisses Dantas

doi:10.1016/j.prosdent.2022.10.014

Cited by 4 publications

(4 citation statements)

References 44 publications

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“…In general, to reduce the crosscontaminations in dental laboratories and dental clinics with minimum effect on the stone cast and impression materials properties, 0.2% chlorohexidine is preferred to be used wither by adding it to the stone cast or to the dental impression materials as proved in this study and agreed by many recent studies 3,5,6 . This result is in agreement with Dulaimi SF., et al 1 which evaluated the effect of 0.525% sodium hypochlorite, 0.2% Chlorehexidine Gluconate, and 4% Povidone Iodine on the surface quality and detail properties of impression materials and the resultant gypsum.…”

Section: Fluiditysupporting

confidence: 76%

“…1,2 The contaminated dental impression will be poured with stone cast later and thus microorganisms will be transmitted to the stone, which may risks the dentist, dental assistant and laboratory technician to get a serious infection. 1,3,4 Therefore, disinfect the impression before pouring and even disinfect the gypsum cast must be made with suitable disinfectant agents as recommended by the World Dental Federation (FDI) and the American Dental Association # 25 (ADA). 5,6 Many disinfectant solutions have been introduced for that purpose such as glutaraldehyde, phenols, chlorhexidine digluconate and penols.…”

Section: Introductionmentioning

confidence: 99%

“…6,10 Chlorhexidine, in the dental field, is one of the more commonly prescribed antiseptic agents due to its antimicrobial effect. 3,5,11 Therefore, it was used in many research and tests related to many dental industries. CHX for many decades was used and incorporated in many dental applications such as dental materials, disinfecting moist wounds, orthodontic appliances, mouth washes, root canal sealers and irrigation, restorative materials and dental implants.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, is used in this study to be compared to the Hi-stone (control group). 3,23 The purpose of the research is to assess the impact of adding 0.2% CHX liquid on the reproduction of detail compatibility with impression materials, and fluidity of Iraqi stone comparing with Hi-stone (control group).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Dental Stone Fluidity Properties, Compatibility with Impression Materials, and Detail Reproduction after Incorporation of 0.2% Chlorhexidine Solution

Abdulateef,

Alfahdawi,

Yaseen

2024

Ain Shams Dental Journal

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Aim: Evaluate the effect of incorporation of 0.2% CHX solution on the detail reproduction compatibility with impression materials, and fluidity of Iraqi stone comparing with Hi-stone. Materials and Methods: W/P ratio 33ml/100g for Hi-stone and 38ml/100g for Iraqi stone. For detail reproduction detail test block which had 60-degree angle grooves width (0.025, 0.050, 0.075, 0.1, 0.2, 0.3) mm with cross line. Silicone, alginate, and zinc oxide eugenol (ZOE) used for compatibility with impression materials test (n= 10), after setting of impression material, poured with stone and scored. Fluidity was obtained with a different w/p ratio by a slump plate diameter. Results: The mean reproduction of detail was 1.03 ± 0.4 Iraqi stone and 1.03±0.4 Hi-stones. The mean scoring with silicone of Hi-stone was 1.03±0.4 while Iraqi stone was 1.03±0.4. The mean diameter of the slump test was 99.0±1 with Hi-stone, a higher mean of 99.6±1.34 of new Iraqi stone. Conclusion: 0.2% CHX improved the reproduction of detail ability of both types of stone, the same compatibility with silicone and alginate impression materials but less compatibility with ZOE for the two types of stone. Both stones demonstrated reasonable and similar fluidity.

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Section: Fluiditysupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Dental Stone Fluidity Properties, Compatibility with Impression Materials, and Detail Reproduction after Incorporation of 0.2% Chlorhexidine Solution

Abdulateef,

Alfahdawi,

Yaseen

2024

Ain Shams Dental Journal

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Disinfection and Hygiene Protocols

Dayan,

Şeşen,

Kaffaf

2024

Removable Partial Dentures

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Study on the effect of chlorogenic acid on the antimicrobial effect, physical properties and model accuracy of alginate impression materials

Jiang,

Chen,

et al. 2024

PeerJ

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Background Dental impressions are essential for accurately capturing the detailed anatomy of teeth and surrounding oral structures. However, these impressions often become contaminated with saliva and blood, making proper disinfection necessary. The application of chemical disinfectants has been associated with negative side effects, leading to suboptimal disinfection practices in clinical settings. Objective The purpose of this study was to evaluate the effectiveness of chlorogenic acid (CA) as a disinfectant for alginate impression materials, the impact of CA disinfection on the physical properties and dimensional accuracy of alginate impressions was also investigated. Methods The physical properties of alginate impression materials, such as elastic recovery, strain-in-compression, initial setting time, and fluidity, were assessed after mixing the alginate impression materials with three different concentrations of CA solution (10 mg/mL, 15 mg/mL, 20 mg/mL). To evaluate the antimicrobial effect of CA, alginate impressions mixed with a 10 mg/mL CA solution and impressions mixed with distilled water (control group) were contaminated with four types of microorganism: Escherichia coli, Staphylococcus aureus, Candida albicans, and Streptococcus pneumoniae. Following a five-minute incubation period, a CA solution at a concentration of either 50 mg/mL, 55 mg/mL, or 60 mg/mL was sprayed on the samples for disinfection. Samples were collected at different time intervals (10 min, 20 min, 30 min) and cultured to determine the number of colony-forming units (CFU/mL), providing insight into the antimicrobial efficacy of these CA solutions. The dimensional accuracy of alginate impressions was assessed in three groups: one with alginate impressions mixed with distilled water, another with alginate impressions sterilized with available chlorine (2,000 mg/L) mixed with distilled water, and the last group consisting of alginate impressions mixed with 10 mg/mL CA solution and sprayed with 60 mg/mL CA solution. Both the standard model and the plaster model underwent 3D scanning, and the data were processed and compared by software. The root mean square (RMS) was used as a parameter to evaluate the deviation between models. Results All alginate impression materials mixed with either 10 mg/mL, 15 mg/mL, or 20 mg/mL concentrations of CA solution met the ISO 21563 standard for elastic recovery, strain-in-compression, and fluidity. However, only the material mixed with a concentration of 10 mg/mL CA had an initial setting time within the range specified by the T-6505 Japanese industrial standard. The application of CA solution by mixing or spraying showed significant antimicrobial effects on Staphylococcus aureus, Escherichia coli, Candida albicans, and Streptococcus pneumoniae. There was no significant difference in the dimensional accuracy of the alginate impressions between the group of the CA solution applied, the blank group, or the chlorine intervention group.

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Antimicrobial effect and the mechanical and surface properties of a self-disinfecting and a chlorhexidine-incorporated Type IV dental stone

Cited by 4 publications

References 44 publications

Effect of Dental Stone Fluidity Properties, Compatibility with Impression Materials, and Detail Reproduction after Incorporation of 0.2% Chlorhexidine Solution

Effect of Dental Stone Fluidity Properties, Compatibility with Impression Materials, and Detail Reproduction after Incorporation of 0.2% Chlorhexidine Solution

Disinfection and Hygiene Protocols

Study on the effect of chlorogenic acid on the antimicrobial effect, physical properties and model accuracy of alginate impression materials

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