Atomic force microscopy analysis of the surface alterations of enamel, dentin, composite and ceramic materials exposed to low oral pH in GERD

Picoș, Andrei; Petean, Ioan; Dădârlat-Pop, Alexandra; Răchișan, Andreea-Liana; Tomşa, Anamaria Magdalena; Petrachescu, Narcisa; Petri, Cristian; Badea, Mândra; Magurean, Irina Dora

doi:10.3892/etm.2021.10105

Cited by 8 publications

(5 citation statements)

References 44 publications

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“…Kukiattrakoon et al [ 15 ] have concluded that acidic agents used in their study decreased the surface roughness of four types of tested ceramics. On the other hand, the behavior of ceramic in contact with gastric acid in studies is inconsistent with different exposure times and study design [ 14 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Vickers micro-hardness study of the effect of fluoride mouthwash on two types of CAD/CAM ceramic materials erosion

et al. 2022

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Background The aim of this study was to evaluate the protective effects of fluoride mouthwash on the surface micro-hardness of two types of CAD/CAM ceramics after exposure to acidic solutions. Methods 40 samples (5 × 5 × 3 mm3) were prepared from two different ceramics: Vitabloc Mark II CAD, and IPS e.max CAD. The samples were randomly divided into 5 groups in each ceramic (n = 8) immersed in different solutions: Gs: saliva: GGA: gastric acid, GAA: acetic acid, GFGA: sodium fluoride + gastric acid, GFAA: sodium fluoride + acetic acid. The microhardness of samples was measured before and after immersion in different solutions by Vickers microhardness tester. By subtracting the microhardness values after and before immersion, the microhardness changes of the samples were obtained. Data were analyzed by Two-way analysis of variance, one-way analysis of variance, and Tukey test (α = 0.05). Results Immersion in different solutions reduced the microhardness. Microhardness loss was significantly affected in G FAA and G FGA groups in both types of ceramics (P < 0.05). For Vitabloc Mark II groups, the microhardness loss was significantly higher in GFAA and GFGA compared to IPS e.max CAD P < 0.001). Conclusion Fluoride mouthwash in conjunction with acidic solutions may adversely affect microhardness of Vitabloc Mark II CAD, and IPS e.max CAD that may consequently compromise the clinical service. Vitabloc Mark II CAD was significantly more affected than IPS e.max CAD.

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Section: Introductionmentioning

confidence: 99%

Vickers micro-hardness study of the effect of fluoride mouthwash on two types of CAD/CAM ceramic materials erosion

et al. 2022

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“…However even if Z showed decreased surface roughness it was still highest in terms of roughness values compared to RBC and HIPC. According to Picos et al (17) surface roughness of enamel is 0.00969µm. The surface roughness value after acid immersion in Z group, RBC group, HIPC group was 0.0587+0.00637µm, 0.0324+0.00802µm and 0.0198+0.0025µm respectively.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the Effect of Simulated Gastric Juice on Surface Roughness and Flexural Strength of Three Different Computer Aided Designing Computer Aided Manufacturing Blocks: An In Vitro Study

MDS,

DNB

2024

jaz

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Purpose:To evaluate the effect of simulated gastric juice on surface roughness and flexural strength of three different CAD/CAM blocks. Materials and Methods: Resin based ceramic (RBC Group), High impact polymer composite (HIPC Group) and Zirconia (Z Group) as 3 groups were considered for the study (90 samples, 30 samples per group). In each group, 10 samples were evaluated without immersion in gastric juice (Baseline). Remaining 20 samples were immersed for total of 24 hours in simulated gastric juice (pH 1.2). The surface roughness and flexural strength of samples was evaluated at the end of 6 hours and 24 hours. This was repeated for all groups. The data obtained was subjected to One way and Multivariate ANOVA and Tukey HSD tests. The significance level was fixed at 5% (p<0.05) Results: One way ANOVA showed surface roughness of Z group decreased significantly after acid immersion whereas RBC group and HIPC group showed significant increase in the surface roughness after acid immersion. One way multivariate ANOVA revealed statistically significant differences between the groups. Tukey HSD revealed a significant difference from base line to 24 hours across all groups. The surface changes were not significant between 6 hours to 24 hours in Z (p=0.261), RBC (p=0.797), HIPC (p=0.401) and baseline to 6 hours in HIPC group (p=0.397). The flexural strength of all the groups decreased significantly after acid immersion. The change in flexural strength from baseline to 6 hours was not significant in RBC (p=0.123) and HIPC groups (p=0.126) and 6 hours to 24 hours in RBC group (p=0.096). Z group showed a significant reduction from baseline to 6, 6 to 24 and baseline to 24 hrs. RBC

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“…The physiological pH value of the oral cavity ranged between 6.6 and 7.1, whereas different implants can generate various interfacial pH values and significantly influence the nearby microenvironments [116]. However, acidic environments caused by degradable polymers are usually acidic, which can inhibit osteoblast-mediated bone formation [19].…”

Section: Surface Proton Concentration (Ph) Of Substitutes Regulating ...mentioning

confidence: 99%

Strategies for advanced particulate bone substitutes regulating the osteo-immune microenvironment

YANG¹,

Chu²,

Xiao³

et al. 2022

Biomed. Mater.

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The usage of bone substitute granule materials has improved the clinical results of alveolar bone deficiencies treatment and thus broadened applications in implant dentistry. However, because of the complicated mechanisms controlling the foreign body response, no perfect solution can avoid the fibrotic encapsulation of materials till now, which may impair the results of bone regeneration, even cause the implant materials rejection. Recently, the concept of ‘osteoimmunology’ has been stressed. The outcomes of bone regeneration are proved to be related to the bio-physicochemical properties of biomaterials, which allow them to regulate the biological behaviours of both innate and adaptive immune cells. With the development of single cell transcriptome, the truly heterogeneity of osteo-immune cells has been clarifying, which is helpful to overcome the limitations of traditional M1/M2 macrophage nomenclature and drive the advancements of particulate biomaterials applications. This review aims at introducing the mechanisms of optimal osseointegration regulated by immune systems and provides feasible strategies for the design of next generation ‘osteoimmune-smart’ particulate bone substitute materials in dental clinic.

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Atomic force microscopy analysis of the surface alterations of enamel, dentin, composite and ceramic materials exposed to low oral pH in GERD

Cited by 8 publications

References 44 publications

Vickers micro-hardness study of the effect of fluoride mouthwash on two types of CAD/CAM ceramic materials erosion

Vickers micro-hardness study of the effect of fluoride mouthwash on two types of CAD/CAM ceramic materials erosion

Comparison of the Effect of Simulated Gastric Juice on Surface Roughness and Flexural Strength of Three Different Computer Aided Designing Computer Aided Manufacturing Blocks: An In Vitro Study

Strategies for advanced particulate bone substitutes regulating the osteo-immune microenvironment

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