Properties of fluoride-releasing light-activated resin cement

Yoshida, Kazuhiko; Atsuta, Mitsuru

doi:10.1016/s0109-5641(99)00054-8

Cited by 5 publications

(5 citation statements)

References 26 publications

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“…It has been found that a linear correlation exists between fluoride release and recharge capabilities. In other words, a material with higher initial fluoride release also has a higher fluoride recharge capability 22,24) . Therefore, for fluoridereleasing fissure sealants, their ability to absorb fluoride from topical agents and subsequently release it serves as an excellent delivery system for fluoride intraorally 7,29,35) .…”

Section: Discussionmentioning

confidence: 99%

“…It has been reported that a negative correlation exists between fluoride release and compressive strength of glass ionomer and resinbased fissure sealants [22][23][24] . Results of the present study agreed with the published literature [22][23][24] , whereby it was shown that materials with high fluoride release had lower compressive strengths.…”

Section: Discussionmentioning

confidence: 99%

“…This is because most forces of mastication are compressive. Moreover, when comparing materials that are brittle and generally weak in tension ( and hence not employed where tensile forces predominate), compressive strength is a useful benchmark [21][22][23][24] . Another well-documented factor that contributes to the success of dental restorations is a smooth surface [25][26][27] .…”

Section: Introductionmentioning

confidence: 99%

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Compressive Strength, Surface Roughness, Fluoride Release and Recharge of Four New Fluoride-releasing Fissure Sealants

Çıldır

Sandallı

2007

Dent. Mater. J.

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The aim of this study was to investigate the compressive strength and surface roughness of two glass ionomer cements and two resin-based fissure sealants before and after fluoride release and recharge. Twenty-one specimens were prepared and divided into three groups for each material. First group was loaded in compression until failure. Fluoride released was measured from the remaining specimens, and then the second group of seven specimens was loaded at 28 th day. The remaining seven specimens were exposed to 0.05％ NaF solution and 1.23％ APF gel. Fluoride amount was measured, and the last group was loaded at 70 th day. Surface roughness measurement of five more disk-shaped specimens from each material was also carried out. After exposure to APF gel, all materials were recharged. At the end of experimental period, it was found that surface roughness increased, whereas compressive strength decreased, over time. In conclusion, fluoride-releasing fissure sealants could act as show, rechargeable fluoride release systems. However, if a fissure sealant exhibited high fluoride release, it had inferior mechanical properties.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Compressive Strength, Surface Roughness, Fluoride Release and Recharge of Four New Fluoride-releasing Fissure Sealants

Çıldır

Sandallı

2007

Dent. Mater. J.

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“…Among other anti-bacterial agents, different forms of silver (Ag) have been previously incorporated into dental materials (Yoshida and Atsuta, 1999;Cheng et al, 2012;Zhang et al, 2012). Although these strategies have shown various degrees of success in inhibiting bacterial growth, the resulting modified materials lack bioactive properties that can induce remineralisation of the mineral-depleted dental tissue, repair and regeneration.…”

Section: Discussionmentioning

confidence: 99%

Biological and bactericidal properties of Ag-doped bioactive glass in a natural extracellular matrix hydrogel with potential application in dentistry

Wang

Chatzistavrou

Faulk

et al. 2015

eCM

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The aim of this study was the fabrication and evaluation of a novel bioactive and bactericidal material, which could have applications in dentistry by supporting tissue regeneration and killing oral bacteria. Our hypothesis was that a new scaffold for pulp-dentin tissue engineering with enhanced antibacterial activity could be obtained by associating extracellular matrix derived from porcine bladder with an antibacterial bioactive glass. Our study combines in vitro approaches and ectopic implantation in scid mice. The novel material was fabricated by incorporating a sol-gel derived silver (Ag)-doped bioactive glass (BG) in a natural extracellular matrix (ECM) hydrogel in ratio 1:1 in weight % (Ag-BG/ECM). The biological properties of the Ag-BG/ECM were evaluated in culture with dental pulp stem cells (DPSCs). In particular, cell proliferation, cell apoptosis, stem cells markers profile, and cell differentiation potential were studied. Furthermore, the antibacterial activity against Streptococcus mutans and Lactobacillus casei was measured. Moreover, the capability of the material to enhance pulp/dentin regeneration in vivo was also evaluated. Our data show that Ag-BG/ECM significantly enhances DPSCs' proliferation, it does not affect cell morphology and stem cells markers profile, protects cells from apoptosis, and enhances in vitro cell differentiation and mineralisation potential as well as in vivo dentin formation. Furthermore, Ag-BG/ECM strongly inhibits S. mutans and L. casei growth suggesting that the new material has also anti-bacterial properties. This study provides foundation for future clinical applications in dentistry. It could potentially advance the currently available options of dental regenerative materials.

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“…It should be noted that the amount of fluoride released from dental restoratives is far less than the amounts shown in Figure 5. Accumulated release varies between material types and products, but resin cements have been shown to have similar release profiles as resin-modified and conventional glass-ionomer cements, which are able to reach 15 ppm in the first week [20, 28, 29]. However, with the occurrence of shrinkage during setting, which allows gaps or voids to form between the cement and tooth, a strong initial fluoride release could increase fluoride concentration in the area, reducing the proliferation of bacteria and helping prevent secondary caries.…”

Section: Discussionmentioning

confidence: 99%

Antibacterial Properties of Dental Luting Agents: Potential to Hinder the Development of Secondary Caries

Unosson

Cai

Jiang

et al. 2012

International Journal of Dentistry

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A modified direct contact test was used to evaluate the antibacterial properties of four commercially available dental luting agents (RelyX Unicem, Ketac Cem, Ceramir Crown & Bridge and Harvard Cement) and two reference materials (glass-ionomer cement and calcium aluminate cement) compared to a negative-control material (PMMA). Streptococcus mutans bacteria were placed in direct contact with specimens that had been aged for 10 min, 1 day, and 7 days, in order to test the antibacterial properties of the materials. A metabolic assay containing resazurin was used to quantify the amount of viable bacteria remaining after the direct contact tests. The effects of pH and fluoride on bacteria proliferation were also evaluated. Strongest antibacterial properties were found for calcium aluminate cement, followed by Ceramir Crown & Bridge and RelyX Unicem. Ketac Cem, Harvard Cement, and the reference glass-ionomer cement showed bacteria content either higher than or not significantly different from the PMMA control in all instances. pH levels below 6.3 and above 9.0 were found to have negative effects on bacterial proliferation. No correlation between either acidic materials or fluoride release and antibacterial properties could be seen; rather, basic materials showed stronger antibacterial properties.

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Properties of fluoride-releasing light-activated resin cement

Cited by 5 publications

References 26 publications

Compressive Strength, Surface Roughness, Fluoride Release and Recharge of Four New Fluoride-releasing Fissure Sealants

Compressive Strength, Surface Roughness, Fluoride Release and Recharge of Four New Fluoride-releasing Fissure Sealants

Biological and bactericidal properties of Ag-doped bioactive glass in a natural extracellular matrix hydrogel with potential application in dentistry

Antibacterial Properties of Dental Luting Agents: Potential to Hinder the Development of Secondary Caries

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