In vitro secondary caries inhibition around fluoride releasing materials

Pereira, Patrícia; Inokoshi, S; Tagami, Junji

doi:10.1016/s0300-5712(98)00008-6

Cited by 78 publications

(70 citation statements)

References 13 publications

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“…The in vitro secondary caries tests and evaluation methods have been developed that assess demineralized lesions and inhibition zones of dentin due to acid challenge. These methods include polarized light microscopy 7,8,9) , a microhardness test 8,10,11) , microradiography 5,12) , confocal laser-scanning microscopy and the x-ray analytical microscope 13,14) . However, the magnification of such methods is limited if more detailed information at the interface between the cavity and restoration is required.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of dentin bonding performance and acid-base resistance of the interface of two-step self-etching adhesive systems

et al. 2009

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The purpose of this study was to evaluate dentin bond strengths and to observe the adhesive-dentin interface after acid-base challenge using fluoride-free and fluoride-releasing self-etching adhesive systems; Clearfil SE Bond (SE), FL-Bond (FL) and FL-Bond II(FL II). Fifteen dentin surfaces from human molars were ground and bonded with one of three adhesive systems. The microtensile bond strength (µTBS) test was performed at a crosshead speed of 1 mm/min. The interface of the bonded specimens after acid-base challenge were also examined by a SEM.The µTBS of SE were significantly higher than those of FL and FL II (p<0.05), however, there were no significant differences between FL and FL II (p>0.05). An acid-base resistant zone (ABRZ) was observed in all the groups, however, formation of the ABRZ was material dependent. Fluoride-release from the adhesive is a key factor to create thick ABRZ.

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Section: Introductionmentioning

confidence: 99%

Evaluation of dentin bonding performance and acid-base resistance of the interface of two-step self-etching adhesive systems

et al. 2009

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“…Control of carious lesions is mainly related to the presence of fluoride in the oral cavity, and may not be considered as directly dependent on the amount incorporated by the tooth 6,17) , since the main mechanism of action of fluoride is dynamic, inhibiting demineralization and enhancing remineralization 4,19) . Therefore, the constant presence of fluoride in the oral cavity, in saliva or oral fluids, dental plaque and enamel, may control or even inhibit the appearance of secondary carious lesions, as well as lead to arrest of existing lesions, preventing progression of incipient lesions to formation of cavity 6,22) .…”

Section: Discussionmentioning

confidence: 99%

“…This leads to the assumption that the cariostatic property of CHELON FIL (Group 6) may be explained by the intensive fluoride release of this material 17,19,25) , and the amount of fluoride released depends on its concentration in the material; in addition, ionic fluoride is present in this material, which favors its release 17) . This is corroborated by the mean values observed in this study, which demonstrated that the material employed in Group 6 (CHELON FIL), with high fluoride release and bonding to the tooth structure, presented a better performance for control of demineralization.…”

Section: Discussionmentioning

confidence: 99%

“…Glass ionomer cement, initially described in the early 1970s, is regarded as the material of choice in cases where cavity sealing and prevention of secondary caries are desirable, due to its properties of adhesion to dental structures and its high rate of fluoride release 16,17,22) . However, the predominance of resin composites among esthetic restorative materials is evident, especially due to their highly satisfactory esthetics and easy manipulation.…”

Section: Introductionmentioning

confidence: 99%

“…However, the predominance of resin composites among esthetic restorative materials is evident, especially due to their highly satisfactory esthetics and easy manipulation. The greatest difficulty with this material is the occurrence of secondary carious lesions adjacent to the restoration, which is observed less frequently in teeth restored with glass ionomer 1,13,17,22) . In an attempt to obtain an ideal material that would combine the good properties of both resin composites and glass ionomer cements, new materials have been developed, such as resin-modified glass ionomers and polyacid-modified resin composites.…”

Section: Introductionmentioning

confidence: 99%

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Detection of Microsatellite Alterations in Plasma DNA of Malignant Mucosal Melanoma Using Whole Genome Amplification

Nakamoto

Yamamoto

Takagi

et al. 2008

Bull. Tokyo Dent. Coll.

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The objective of this in vitro study was to evaluate demineralization around restorations. Class V preparations were made on the buccal and lingual surfaces of each tooth. TPH (Group 1), Fuji II LC (Group 2), Tetric (Group 3), Dyract (Group 4), GS 80 (Group 5) and Chelon Fil (Group 6) were randomly placed in equal numbers of teeth. The teeth were submitted to a pH-cycling model associated with a thermocycling model. Sections were made and the specimens were examined for the presence of demineralization under polarized light microscopy. Demineralization was significantly reduced with Chelon Fil (Group 6). Furthermore, a similar inhibitory effect on the development of demineralization was observed in Groups 2, 4 and 5.

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Cunnington¹,

Kane²

2011

Arthritis & Rheumatism

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We read Drs. Villaseñor-Ovies and Canoso's comments with interest. They make an interesting argument for the important role of the nondominant hand in performing joint injection. However, their interpretation of our study and their subsequent hypothesis that we introduced a bias by restricting use of the nondominant hand is incorrect, as it is based on an erroneous assumption.The sham ultrasound was not performed by the same doctor who was performing the CE-guided injection, but rather was performed by a third party holding an ultrasound probe near the injection site. The system was turned off and the screen was not visible to the patient. As the patients had no previous experience of an ultrasound-guided injection, they would have been blinded with regard to the technique used.The CE-guided injectors were allowed to practice their normal injection technique without any restraint and with the full use of both hands. In fact, they may have had an advantage, rather than a disadvantage, over standard injection technique. For purposes of localizing the injectate on a plain radiograph, the joint was injected with a much larger volume (6 ml for the knee, 4 ml for all other joints) than is usual in rheumatology practice. In smaller joints, such as the wrist and ankle, this may have led to an increased likelihood of some of the injectate reaching the joint cavity, thus being one of the causes of our CE-guided injectors' having a better accuracy rate than those published in other studies (1,2).To establish how well the blinding had worked, patients were asked during followup to report which method of guidance they thought they had received. Of these patients, 13.8% were unsure as to how the injection was guided, 70% thought they had received an ultrasound-guided injection, and 16% thought they had received a CE-guided injection. The agreement by kappa statistic between the actual method of guiding the injection and the method the patient thought they had received was 0.19, indicating poor agreement and confirming that the strategy used to blind patients to the method of guidance was successful.Despite CE-guided injections being performed using the clinician's usual technique and using a large injectate volume, ultrasound-guided injection by a much less experienced rheumatologist (9 months of rheumatology experience) had an accuracy rate of 83%, while CE-guided injections by more experienced rheumatologists (9 consultants with a median of 15.0 years of rheumatology experience [range 9-33 years] and 9 specialist registrars with a median of 3.0 years of rheumatology experience [range 1-8 years]) had an accuracy rate of 66% (a statistically significant difference). Experienced ultrasonographers can obtain close to 100% accuracy with real-time guidance (3), while experienced clinicians can, at best, achieve 66% accuracy using the 2-hand clinically guided technique.

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In vitro secondary caries inhibition around fluoride releasing materials

Cited by 78 publications

References 13 publications

Evaluation of dentin bonding performance and acid-base resistance of the interface of two-step self-etching adhesive systems

Evaluation of dentin bonding performance and acid-base resistance of the interface of two-step self-etching adhesive systems

Detection of Microsatellite Alterations in Plasma DNA of Malignant Mucosal Melanoma Using Whole Genome Amplification

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