• فهرست مقالات Glass ionomer

      • دسترسی آزاد مقاله

        1 - The effect of remineralizing agents on artificial caries lesions by laser Fluorescence
        Zohreh Maleki MohammadReza Malekipour Leila Pishevar
        Background: The present study aimed to use a DIAGNOdetnt unit to compare the effects of casein phosphopeptideamorphous calcium phosphate fluoride (CPP-ACPF), 0.05% sodium fluoride (NaF) mouth rinse, and glass ionomer (GI) on enamel remineralization.Materials and Methods چکیده کامل
        Background: The present study aimed to use a DIAGNOdetnt unit to compare the effects of casein phosphopeptideamorphous calcium phosphate fluoride (CPP-ACPF), 0.05% sodium fluoride (NaF) mouth rinse, and glass ionomer (GI) on enamel remineralization.Materials and Methods: This in vitro study was performed on 50 intact human premolars in five groups: A (artificial saliva), B (CPP-ACPF), C (NAF), D (GI), and E(GI+NAF). All samples were assessed using a DIGNOdetnt unit before and after demineralization. The teeth in each group were treated (except for the control group) then pH cycled repeatedly for 30 days. After this, the remineralization evaluation was evaluated. Data gathered by DIAGNOdetnt were analyzed by One way analysis of variance. The least significant difference (LSD) test was used for multiple comparisons (α=0.05).Results: After the treatment, the mean DIAGNOdetnt values in groups B(3.6), C(4.7), D (5.1), and E(3.5) were significantly lower than that in group A(P<0.0001). LSD test showed that the mean DIAGNOdetnt value in groups B and E was lower than for groups C and D(P<0.001).Conclusion: Although the repeated application of all the experimental materials was efficient, CPP-ACPF and GI+NAF had more prominent remineralization potential in comparison to NAF and GI alone. پرونده مقاله
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        2 - Reinforcement of Glass Ionomer Cement: Incorporating with Silk Fiber
        Mina Bahrami-Abadi Masoumeh Khaghani Ahmad Monshi Ali Doostmohammadi Sara Alizadeh
        The aim of this study was to synthesis of glass ionomer-silk fiber composite and to evaluate the effect of adding natural degummed silk fiber on the mechanical properties of glass ionomer cement (GIC). For this purpose, natural degummed silk fibers with 1 mm in length a چکیده کامل
        The aim of this study was to synthesis of glass ionomer-silk fiber composite and to evaluate the effect of adding natural degummed silk fiber on the mechanical properties of glass ionomer cement (GIC). For this purpose, natural degummed silk fibers with 1 mm in length and 13-16 µm in diameter were added to the ceramic component of a commercial glass ionomer cement in 1, 3 and 5 wt. %. Compressive strength (CS), three-point flexural strength (FS) and diametral tensile strength (DTS) of the prepared glass ionomer-silk fiber were measured. Analysis of variance (ANOVA) was used to compare the obtained results. Moreover, SEM technique was used for investigation of the surface morphology of as-prepared composite and fractured area. The results showed that the highest compressive strength, flexural strength and diametral tensile strength were obtained using 3, 3 and 5 wt. % of silk fiber, respectively. However, at 3 wt. % silk fiber, all three measures of strength exhibited a significant increase compared to the commercial GIC. Therefore, it can be suggested that the addition of 3 wt. % silk fiber to the ceramic component of GIC is desired for dental restorations and orthopedic implant applications, where the maximum strength in all three modes of loading would be beneficial. پرونده مقاله
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        3 - Mechanical properties improvement and bone regeneration of calcium phosphate bone cement, Polymethyl methacrylate and glass ionomer
        Rezvan Fada Niusha Farhadi Babadi Reyhane Azimi Majid Karimian Mohamad Shahgholi
        Advancement in nanoscience and biotechnology of bone materials and cement has been increasing over the past several decades. The combination of biomaterials with trace elements for bone cement has verified their better mechanical strength and biocompatibility response. چکیده کامل
        Advancement in nanoscience and biotechnology of bone materials and cement has been increasing over the past several decades. The combination of biomaterials with trace elements for bone cement has verified their better mechanical strength and biocompatibility response. Also, the ionic replacement has affected the chemical, physical and biological properties of the substance. Pyrophosphate has supported better absorption of calcium phosphates (CaPs) and bone formation. Bone cement is the ionomer of an important material in tooth repair application used in the tooth filling, tooth cover, and to fix adhesions of the tooth and crown. Nanoparticle additives (magnesium oxide (MgO), hydroxyapatite (HA), chitosan (CH), barium sulfate and silica) and alternate monomers can be effective with Polymethyl methacrylate (PMMA) granules and methyl methacrylate monomers (MMAs) to decrease the isothermal temperature. These materials can be used for the growth and development of bone cements. This paper aims to demonstrate a general and different view of the applications of CaP, PMMA, glass ionomer and bone repair cements in various methods under different experiments procedure. پرونده مقاله
      • دسترسی آزاد مقاله

        4 - Mechanical properties improvement and bone regeneration of calcium phosphate bone cement, Polymethyl methacrylate and glass ionomer
        Rezvan Fada Niusha Farhadi Babadi Reyhaneh Azimi Majid Karimian mohamad shahgholi
        Advancement in nanoscience and biotechnology of bone materials and cement hasbeen increasing over the past several decades. The combination of biomaterialswith trace elements for bone cement has verified their better mechanical strengthand biocompatibility response. Als چکیده کامل
        Advancement in nanoscience and biotechnology of bone materials and cement hasbeen increasing over the past several decades. The combination of biomaterialswith trace elements for bone cement has verified their better mechanical strengthand biocompatibility response. Also, the ionic replacement has affected thechemical, physical and biological properties of the substance. Pyrophosphate hassupported better absorption of calcium phosphates (CaPs) and bone formation.Bone cement is the ionomer of an important material in tooth repair applicationused in the tooth filling, tooth cover, and to fix adhesions of the tooth and crown.Nanoparticle additives (magnesium oxide (MgO), hydroxyapatite (HA), chitosan(CH), barium sulfate and silica) and alternate monomers can be effective withPolymethyl methacrylate (PMMA) granules and methyl methacrylate monomers(MMAs) to decrease the isothermal temperature. These materials can be used forthe growth and development of bone cements. This paper aims to demonstratea general and different view of the applications of CaP, PMMA, glass ionomer andbone repair cements in various methods under different experiments procedure پرونده مقاله