Effect of metallic flask closure and investment materials on the stability of the denture base resin
Identifieur interne : 005325 ( Main/Curation ); précédent : 005324; suivant : 005326Effect of metallic flask closure and investment materials on the stability of the denture base resin
Auteurs : Rafael Leonardo Xediek Consani [Brésil] ; Marcelo Ferraz Mesquita [Brésil] ; Lourenço Correr Sobrinho [Brésil] ; Mario Alexandre Coelho Sinhoreti [Brésil]Source :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2010-05-05.
Descripteurs français
English descriptors
- KwdEn :
- Adaptation, Assoc, Best denture base resin adaptation, Better adaptation, Braz dent, Canine, Canines region, Case letters, Closure, Complete denture, Complete denture procedure, Confidence level, Consani, Dent, Dent assoc, Dental stone, Denture, Denture base, Denture base adaptation, Denture base resin, Denture base resin adaptation, Dimensional changes, Dimensional stability, First molars, First molars region, Flask, Flask closure, Flask closure techniques, Flask cooling, Future studies, Intermediate value, Investment material, Investment materials, Molar, Palatal, Pmma, Pmma dough, Pmma polymer, Polymer, Polymer science, Polymerization shrinkage, Posterior palatal, Posterior palatal region, Posterior palate, Prosthet, Prosthet dent, Prosthodont, Resin, Screws methods, Significant difference, Significant differences, Silicone, Silicone investment, Silicone investments, Standard deviation, Stone cast, Upper case letters.
- Teeft :
- Adaptation, Assoc, Best denture base resin adaptation, Better adaptation, Braz dent, Canine, Canines region, Case letters, Closure, Complete denture, Complete denture procedure, Confidence level, Consani, Dent, Dent assoc, Dental stone, Denture, Denture base, Denture base adaptation, Denture base resin, Denture base resin adaptation, Dimensional changes, Dimensional stability, First molars, First molars region, Flask, Flask closure, Flask closure techniques, Flask cooling, Future studies, Intermediate value, Investment material, Investment materials, Molar, Palatal, Pmma, Pmma dough, Pmma polymer, Polymer, Polymer science, Polymerization shrinkage, Posterior palatal, Posterior palatal region, Posterior palate, Prosthet, Prosthet dent, Prosthodont, Resin, Screws methods, Significant difference, Significant differences, Silicone, Silicone investment, Silicone investments, Standard deviation, Stone cast, Upper case letters.
Abstract
This study evaluated the dimensional stability of the poly‐methylmethacrylate (PMMA) denture bases under the effect of different metallic flask closure techniques (FCT) and investment materials (IM). Sixty stone cast maxillary‐wax base plate sets were randomly assigned to six groups (n = 10) for the following treatments: 1 and 4—stone or silicone investments and flask closure with clamp; 2 and 5—stone or silicone investments and flask closure with RS system; 3 and 6—stone or silicone investments and flask closure with screws. PMMA denture bases were polymerized in a water bath at 74°C for 9 h. PMMA base‐stone cast sets were sectioned at regions (R) of the canines, first molars, and posterior palatal zone. Gap discrepancies were measured at five points: right and left ridge crests, palatal midline, and right and left marginal limits of the flanges. An optical micrometer with accuracy of 0.0005 mm was used for measurement purposes. Data were submitted to ANOVA and Tukey's test (α = 0.05). Silicone showed an adaptation mean (0.177 mm) significantly different when compared with stone (0.207 mm). The RS system presented a statistically different adaptation mean (0.166 mm) in relation to the traditional clamp (0.200 mm) and flask with screws (0.211 mm). Adaptation values for the regions of the canines (0.141 mm), first molars (0.185 mm), and posterior palatal (0.250 mm) were statistically different. For all flask closure techniques, better adaptation was shown with the RS system and silicone investment. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
Url:
DOI: 10.1002/app.31713
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type="state">État de São Paulo</region></placeName></affiliation></author><author><name sortKey="Sinhoreti, Mario Alexandre Coelho" sort="Sinhoreti, Mario Alexandre Coelho" uniqKey="Sinhoreti M" first="Mario Alexandre Coelho" last="Sinhoreti">Mario Alexandre Coelho Sinhoreti</name><affiliation wicri:level="2"><country xml:lang="fr">Brésil</country><wicri:regionArea>Department of Restorative Dentistry, Piracicaba Dental School, State University of Campinas, Piracicaba, CEP‐13414‐903 SP</wicri:regionArea><placeName><region type="state">État de São Paulo</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Applied Polymer Science</title><title level="j" type="alt">JOURNAL OF APPLIED POLYMER SCIENCE</title><idno type="ISSN">0021-8995</idno><idno type="eISSN">1097-4628</idno><imprint><biblScope unit="vol">116</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="1467">1467</biblScope><biblScope unit="page" to="1474">1474</biblScope><biblScope unit="page-count">8</biblScope><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2010-05-05">2010-05-05</date></imprint><idno type="ISSN">0021-8995</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0021-8995</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adaptation</term><term>Assoc</term><term>Best denture base resin adaptation</term><term>Better adaptation</term><term>Braz dent</term><term>Canine</term><term>Canines region</term><term>Case letters</term><term>Closure</term><term>Complete denture</term><term>Complete denture procedure</term><term>Confidence level</term><term>Consani</term><term>Dent</term><term>Dent assoc</term><term>Dental stone</term><term>Denture</term><term>Denture base</term><term>Denture base adaptation</term><term>Denture base resin</term><term>Denture base resin adaptation</term><term>Dimensional changes</term><term>Dimensional stability</term><term>First molars</term><term>First molars region</term><term>Flask</term><term>Flask closure</term><term>Flask closure techniques</term><term>Flask cooling</term><term>Future studies</term><term>Intermediate value</term><term>Investment material</term><term>Investment materials</term><term>Molar</term><term>Palatal</term><term>Pmma</term><term>Pmma dough</term><term>Pmma polymer</term><term>Polymer</term><term>Polymer science</term><term>Polymerization shrinkage</term><term>Posterior palatal</term><term>Posterior palatal region</term><term>Posterior palate</term><term>Prosthet</term><term>Prosthet dent</term><term>Prosthodont</term><term>Resin</term><term>Screws methods</term><term>Significant difference</term><term>Significant differences</term><term>Silicone</term><term>Silicone investment</term><term>Silicone investments</term><term>Standard deviation</term><term>Stone cast</term><term>Upper case letters</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Adaptation</term><term>Assoc</term><term>Best denture base resin adaptation</term><term>Better adaptation</term><term>Braz dent</term><term>Canine</term><term>Canines region</term><term>Case letters</term><term>Closure</term><term>Complete denture</term><term>Complete denture procedure</term><term>Confidence level</term><term>Consani</term><term>Dent</term><term>Dent assoc</term><term>Dental stone</term><term>Denture</term><term>Denture base</term><term>Denture base adaptation</term><term>Denture base resin</term><term>Denture base resin adaptation</term><term>Dimensional changes</term><term>Dimensional stability</term><term>First molars</term><term>First molars region</term><term>Flask</term><term>Flask closure</term><term>Flask closure techniques</term><term>Flask cooling</term><term>Future studies</term><term>Intermediate value</term><term>Investment material</term><term>Investment materials</term><term>Molar</term><term>Palatal</term><term>Pmma</term><term>Pmma dough</term><term>Pmma polymer</term><term>Polymer</term><term>Polymer science</term><term>Polymerization shrinkage</term><term>Posterior palatal</term><term>Posterior palatal region</term><term>Posterior palate</term><term>Prosthet</term><term>Prosthet dent</term><term>Prosthodont</term><term>Resin</term><term>Screws methods</term><term>Significant difference</term><term>Significant differences</term><term>Silicone</term><term>Silicone investment</term><term>Silicone investments</term><term>Standard deviation</term><term>Stone cast</term><term>Upper case letters</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Polymère</term><term>Résine</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study evaluated the dimensional stability of the poly‐methylmethacrylate (PMMA) denture bases under the effect of different metallic flask closure techniques (FCT) and investment materials (IM). Sixty stone cast maxillary‐wax base plate sets were randomly assigned to six groups (n = 10) for the following treatments: 1 and 4—stone or silicone investments and flask closure with clamp; 2 and 5—stone or silicone investments and flask closure with RS system; 3 and 6—stone or silicone investments and flask closure with screws. PMMA denture bases were polymerized in a water bath at 74°C for 9 h. PMMA base‐stone cast sets were sectioned at regions (R) of the canines, first molars, and posterior palatal zone. Gap discrepancies were measured at five points: right and left ridge crests, palatal midline, and right and left marginal limits of the flanges. An optical micrometer with accuracy of 0.0005 mm was used for measurement purposes. Data were submitted to ANOVA and Tukey's test (α = 0.05). Silicone showed an adaptation mean (0.177 mm) significantly different when compared with stone (0.207 mm). The RS system presented a statistically different adaptation mean (0.166 mm) in relation to the traditional clamp (0.200 mm) and flask with screws (0.211 mm). Adaptation values for the regions of the canines (0.141 mm), first molars (0.185 mm), and posterior palatal (0.250 mm) were statistically different. For all flask closure techniques, better adaptation was shown with the RS system and silicone investment. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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