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001-es BibID:BIBFORM062658
Első szerző:Nagy Gábor (fogorvos, Semmelweis)
Cím:A preliminary study on efficacy of cone beam CT contrast density measurements to assess in vitro enamel erosion. / Gábor Nagy, Tamás Bányász, Melinda Madléna, Rita Mohácsi, János Angyal
Megjegyzések:Objective: The aim of this study was to test the protective effects of Elmex? Erosion Protection anti-erosive mouth rinse on acid induced tooth material loss in vitro by CBCT and digital image analysis.Methods: Enamel samples taken from crowns of 20 human impacted molars were embedded into resin blocks. Half of the enamel sample (cca. 3?3 mm) was covered by acrylate, and the other half was exposed to acidic challenge. During a 5 days period each specimen was immersed in 0.05 M citric acid, pH2.3, for 6?5 min daily, then rinsed with water and stored for the remaining time in remineralising solution. In test group after the first and last acidic attack, samples were treated for two minutes with Elmex? Erosion Protection anti-erosive mouthrinse (500 ppm fluoride from AmF and NaF). Each sample was scanned by a dental CBCT unit (3D Accuitomo-XYZ Slice View Tomograph J. Morita, Kyoto, Japan). After the 5th day each tooth was scanned by a dental CBCT unit (3D Accuitomo-XYZ Slice View Tomograph J. Morita, Kyoto, Japan). The radiographic pictures were digitally analyzed to compare the linear densitometricprofile of the control and treated sides.Results: The acid treated sides of samples exhibited significantly lower enamel density values by CBCT in both groups than that seen on control sides. In the anti-erosive mouthrinse treated group differences were smaller indicating either effective protection or more completeremineralization.Conclusion: These findings are in good correlation with our previously published profilometric study, showing the beneficial effect of some antierosive rinses. Based on this preliminary study, CBCT could be a potential, promisingmethod to assess density changes in dental erosion in vitro, but further examinations with higher sample numbers are needed.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
cone-beam CT
dental erosion
Megjelenés:Clinical Oral Investigations. - 17 (2013), p. 1101. -
További szerzők:Bányász Tamás (1960-) (élettanász) Madléna Melinda (1960-) (fogorvos) Mohácsi Rita (1983-) (fogorvos) Angyal János (1962-) (fogszakorvos)
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