EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Fluoride Release from Light cured Orthodontic Bonding Materials

Download or read book Fluoride Release from Light cured Orthodontic Bonding Materials written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fluoride Release from Light cured Orthodontic Bonding Materials

Download or read book Fluoride Release from Light cured Orthodontic Bonding Materials written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to compare the rate of fluoride release with time of one non-fluoridated and three fluoride-containing orthodontic bonding materials in distilled water and artificial saliva. Materials tested were: Assure (Reliance, Itasca, IL), Fuji Ortho LC (GC America Inc., Alsip, IL), Python (TP Orthodontics Inc., LaPorte, IN), and Transbond XT (3M, St Paul, MN). Twenty specimens of each material were polymerized and placed in polyethylene tubes. Half the specimens were stored in 1 mL of distilled water and half in 1 mL of unstimulated artificial saliva, at 37C and 100% relative humidity. Fluoride release was measured with an ion-specific electrode. Readings were taken-at 1, 2, 3, 5, 7 and 9 days from time of immersion, then weekly for three weeks and monthly for 5 months. To prevent cumulative measurements, storage solutions were changed 24 h prior to the weekly and monthly readings. Results showed Assure to release the most fluoride, followed by Fuji Ortho LC, Python, and Transbond. The fluoride release rates were greatest during the first days of testing, declining to low but stable levels. The type of storage medium did not dramatically affect fluoride release. Throughout the study, daily fluoride release rates of all three fluoride-containing materials were within the therapeutic range for the reduction of enamel demineralization. The second part of the study tested the twenty samples of Assure for a further two-week period, after exposure to running and still distilled water. Although fluoride release rates declined with time, they were again within the therapeutic range. Release rates were similar in running and still water at all time points.

Book Cumulated Index Medicus

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1999 with total page 1848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Metal Ion Release from Four Orthodontic Wires in Commercial Fluoride Prophylactic Agents

Download or read book Metal Ion Release from Four Orthodontic Wires in Commercial Fluoride Prophylactic Agents written by David Paul Blackburn and published by . This book was released on 2011 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book An in Vitro Study of Fluoride Ion Release from Orthodontic Elastomeric Modules

Download or read book An in Vitro Study of Fluoride Ion Release from Orthodontic Elastomeric Modules written by Kathryn Mary Therese Arneman and published by . This book was released on 1994 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Fluoride Recharging Capability of Orthodontic Materials

Download or read book The Fluoride Recharging Capability of Orthodontic Materials written by Christine Marie Farah and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Enamel demineralization in the form of white spot lesions (WSLs) around fixed orthodontic appliances is a persistent problem in patients with poor oral hygiene. These lesions can form rapidly within 4 weeks of bracket placement. The purpose of this in-vitro study was to investigate the fluoride recharging capability ofa commercially available orthodontic primer used to minimize the development of WSLs in patients. The three groups tested were: OpalSeal (n=20, Ultradent, South Jordan, UT), ProSeal (n=20, Reliance, Itasca, IL) and Transbond XT (control, n=10, 3M Unitek, Monrovia, CA). The samples(5mmin diameter x 1mm in thickness) weresuspended individually in vials filled with 10mL of deionized water usinga fishing line. The baseline fluoride ion release from all of the samples was measured after two weeks of changing the solution every other day. The samples were then randomly divided into two groups, toothbrush or gel. The samples in the toothbrush group were brushed for one minute every day for 7d, with fluoride containing toothpaste (Colgate-Palmolive Company, New York, NY) and placed in a new solution after each brushing. After 7d of brushing the fluoride ion release was measured. The samples in the gel group were immersed in 10mL of acidulated phosphoric fluoride gel (APF) for one minute, following manufacturer0́9s instructions, and then placed in a new vial with 10mL of deionized water. At the end of 24hrs fluoride ion release measurementswere made and the samples were placed individually in a new solution. The solution was changed weekly in the gel group over six weeks to simulate the typical length of time between two orthodontic appointments. A final fluoride ion release measurement was taken of all the discs in the gel group 6 weeks after the fluoride gel treatment. The results of repeated-measures analysis indicated that there were no significant differences between the groups at baseline and after 7d of toothbrushing time points. Opal Seal exhibited a significant increase in fluoride uptake (1.0ppm) after 24hrs of fluoride gel exposure but these levels gradually decreasedover 6 weeks (0.04ppm). Pro Seal and Transbond showed no significant fluoride release after the gel or toothpaste applications. The fluoride-containing primer, Opal Seal, had the ability to be recharged with fluoride ions from APF gel. However, the amount of fluoride released from recharged discs decreased gradually over a 6 weeks of time.

Book Effectiveness of Fluoride Containing Bonding Resins in Preventing Demineralization of Enamel During Orthodontic Treatment

Download or read book Effectiveness of Fluoride Containing Bonding Resins in Preventing Demineralization of Enamel During Orthodontic Treatment written by Robin J. Choi and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: Although orthodontics can correct a variety of dental and skeletal malocclusions, research has shown an increased risk of enamel demineralization leading to white spot lesions (WSLs). The purpose of this study was to compare the effectiveness of Pro Seal and Opal Seal, two fluoridated bonding agents, to Assure, a nonfluoridated bonding agent, in preventing demineralization during orthodontic treatment. Methods: 26 patients beginning comprehensive orthodontic treatment were divided into 3 groups. 9 patients were bonded with Assure (control), 9 patients were bonded with Pro Seal, and 8 patients were bonded with Opal Seal. Pretreatment and six-month progress photographs were used to calculate demineralization rates, and statistical analysis was performed to determine if any bonding agent is better at preventing WSLs. Results: There was no statistically significant difference in demineralization rates between the three bonding agents; however, descriptive statistics suggest that Pro Seal and Opal Seal may prevent demineralization more effectively than Assure.

Book Fluoride Release from a Variety of Commercially Available Orthodontic Bonding Systems

Download or read book Fluoride Release from a Variety of Commercially Available Orthodontic Bonding Systems written by D. M. Wyness and published by . This book was released on 1995 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Fluoride Recharging Capability of an Orthodontic Primer

Download or read book The Fluoride Recharging Capability of an Orthodontic Primer written by Samuel Brooks Allen and published by . This book was released on 2014 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objective: The purpose of this study was to determine the fluoride recharging capability of Opal Seal, a fluoride releasing orthodontic primer, as compared to Transbond XT, the control. Material and Methods: 1mm x 5mm disks of Opal Seal and Transbond were prepared according to the respective manufacturer's instructions. Initially, the samples were stored in deionized water (DI) for 8 weeks. The samples were then randomly divided into one of two groups: Over-the-counter (OTC) fluoride mouthwash and prescription strength (PS) fluoride mouthwash. The OTC group samples were immersed in 5mL of 0.0219% sodium fluoride containing mouthwash for one minute every day for seven days. The PS group samples were immersed in 5mL of 0.2% sodium fluoride containing mouthwash for one minute. All of the samples were suspended in 5mL fresh DI water and fluoride release measurements were taken at baseline (the end of initial 8 weeks of storage), 24 hours, 3 days, 5 days, 7 days, and 14 days. Results: Opal Seal samples treated with the OTC fluoride mouthwash exhibited significant fluctuation in fluoride ion release across time (p=0.0058). However, there were no statistically significant differences in fluoride ion release between the individual timepoints and baseline. Similarly, Opal Seal samples treated with the PS fluoride mouthwash exhibited significant variation in the fluoride ion concentration across time (p

Book Fluoride Calcium and Phosphate Ion Release From Ion Permeable Microcapsules Incorporated Into A Two Part Orthodontic Adhesive System

Download or read book Fluoride Calcium and Phosphate Ion Release From Ion Permeable Microcapsules Incorporated Into A Two Part Orthodontic Adhesive System written by Michael Slater and published by . This book was released on 2014 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examines the ion release rate from polyurethane based microcapsules formulated into orthodontic cement. The release of fluoride, calcium and phosphate ions promotes remineralization in the oral environment. Ion permeable microcapsules containing bioavailable fluoride, calcium, and phosphate aqueous salt solutions were formulated into both the primer and paste of the Dentsply® NeoBond© orthodontic adhesive system. The microcapsules were incorporated into both parts of the system to investigate the effect the continuous phase had on ion release. Furthermore, formulations were varied with both microcapsule identity, and w/w percentage loading of microcapsules. This was done to investigate the effect that the presence of multiple ions has on the apparent release rate. The objective of this research was to validate and quantify the release of bioavailable ions, in hopes of the development of a remineralizing orthodontic adhesive with the capability to combat white spot lesion development. The results of this study support that sustained release of fluoride, calcium, and phosphate from ion permeable microcapsules is achievable from both the primer and paste. An orthodontic adhesive with these capabilities could potentially stop the demineralization process and promote the remineralization process.

Book An in Vitro Comparative Study of Fluoride Release and Shear Bond Strengths of Different Light cured Glass Ionomers in Direct Bonding of Orthodontic Brackets

Download or read book An in Vitro Comparative Study of Fluoride Release and Shear Bond Strengths of Different Light cured Glass Ionomers in Direct Bonding of Orthodontic Brackets written by Darin Boyd Ashcraft and published by . This book was released on 1994 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Comparison of Fluoride Release from Four Potential Orthodontic Bonding Materials

Download or read book A Comparison of Fluoride Release from Four Potential Orthodontic Bonding Materials written by G. Campbell and published by . This book was released on 1998 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: