The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials
Identifieur interne : 001739 ( Pmc/Checkpoint ); précédent : 001738; suivant : 001740The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials
Auteurs : Supneet Singh Wadhwa ; Richa Mehta ; Nidhi Duggal ; Kamlesh VasudevaSource :
- Contemporary Clinical Dentistry [ 0976-237X ] ; 2013.
Abstract
To determine the time dependent accuracy of casts made from three different irreversible hydrocolloids.
The effect of delayed pouring on the accuracy of three different irreversible hydrocolloid impression materials – Regular set CA 37(Cavex, The Netherlands), regular set chromatic (Jeltrate, Dentsply), and fast set (Hydrogum soft, Zhermack Clinical) was investigated. A brass master die that contained two identical posts simulating two complete crown-tapered abutment preparations with reference grooves served as a standardized master model. A total of 120 impressions were made using specially prepared stock-perforated brass tray with 40 impressions of each material. The impressions were further sub-grouped according to four different storage time intervals: 0 min (immediately), 12 min, 30 min, and 1 h. The impressions were stored at room temperature in a zip-lock plastic bag. Interabutment and intraabutment distances were measured in the recovered stone dies (Type IV, Kalrock) using a profile projector with an accuracy of 0.001 mm. The data so obtained was analyzed statistically.
Results of this study showed no statistically significant differences in the accuracy of casts obtained at different time intervals.
Because it is not always possible to pour the impression immediately in routine clinical practice, all irreversible hydrocolloid materials studied could be stored in a zip-lock plastic bag for upto 1 h without any significant distortion.
Url:
DOI: 10.4103/0976-237X.118368
PubMed: 24124296
PubMed Central: 3793551
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials</title><author><name sortKey="Wadhwa, Supneet Singh" sort="Wadhwa, Supneet Singh" uniqKey="Wadhwa S" first="Supneet Singh" last="Wadhwa">Supneet Singh Wadhwa</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Mehta, Richa" sort="Mehta, Richa" uniqKey="Mehta R" first="Richa" last="Mehta">Richa Mehta</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Duggal, Nidhi" sort="Duggal, Nidhi" uniqKey="Duggal N" first="Nidhi" last="Duggal">Nidhi Duggal</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Vasudeva, Kamlesh" sort="Vasudeva, Kamlesh" uniqKey="Vasudeva K" first="Kamlesh" last="Vasudeva">Kamlesh Vasudeva</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24124296</idno><idno type="pmc">3793551</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3793551</idno><idno type="RBID">PMC:3793551</idno><idno type="doi">10.4103/0976-237X.118368</idno><date when="2013">2013</date><idno type="wicri:Area/Pmc/Corpus">002B42</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002B42</idno><idno type="wicri:Area/Pmc/Curation">002B42</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002B42</idno><idno type="wicri:Area/Pmc/Checkpoint">001739</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">001739</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials</title><author><name sortKey="Wadhwa, Supneet Singh" sort="Wadhwa, Supneet Singh" uniqKey="Wadhwa S" first="Supneet Singh" last="Wadhwa">Supneet Singh Wadhwa</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Mehta, Richa" sort="Mehta, Richa" uniqKey="Mehta R" first="Richa" last="Mehta">Richa Mehta</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Duggal, Nidhi" sort="Duggal, Nidhi" uniqKey="Duggal N" first="Nidhi" last="Duggal">Nidhi Duggal</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Vasudeva, Kamlesh" sort="Vasudeva, Kamlesh" uniqKey="Vasudeva K" first="Kamlesh" last="Vasudeva">Kamlesh Vasudeva</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></analytic><series><title level="j">Contemporary Clinical Dentistry</title><idno type="ISSN">0976-237X</idno><idno type="eISSN">0976-2361</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="st1"><title>Aims and Objectives:</title><p>To determine the time dependent accuracy of casts made from three different irreversible hydrocolloids.</p></sec><sec id="st2"><title>Materials and Methods:</title><p>The effect of delayed pouring on the accuracy of three different irreversible hydrocolloid impression materials – Regular set CA 37(Cavex, The Netherlands), regular set chromatic (Jeltrate, Dentsply), and fast set (Hydrogum soft, Zhermack Clinical) was investigated. A brass master die that contained two identical posts simulating two complete crown-tapered abutment preparations with reference grooves served as a standardized master model. A total of 120 impressions were made using specially prepared stock-perforated brass tray with 40 impressions of each material. The impressions were further sub-grouped according to four different storage time intervals: 0 min (immediately), 12 min, 30 min, and 1 h. The impressions were stored at room temperature in a zip-lock plastic bag. Interabutment and intraabutment distances were measured in the recovered stone dies (Type IV, Kalrock) using a profile projector with an accuracy of 0.001 mm. The data so obtained was analyzed statistically.</p></sec><sec id="st3"><title>Results:</title><p>Results of this study showed no statistically significant differences in the accuracy of casts obtained at different time intervals.</p></sec><sec id="st4"><title>Conclusion:</title><p>Because it is not always possible to pour the impression immediately in routine clinical practice, all irreversible hydrocolloid materials studied could be stored in a zip-lock plastic bag for upto 1 h without any significant distortion.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Faria, Ac" uniqKey="Faria A">AC Faria</name></author><author><name sortKey="Rodrigues, Rc" uniqKey="Rodrigues R">RC Rodrigues</name></author><author><name sortKey="Macedo, Ap" uniqKey="Macedo A">AP Macedo</name></author><author><name sortKey="Mattos, Mda G" uniqKey="Mattos M">Mda G Mattos</name></author><author><name sortKey="Ribeiro, Rf" uniqKey="Ribeiro R">RF 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Contemp Clin Dent</journal-id><journal-id journal-id-type="iso-abbrev">Contemp Clin Dent</journal-id><journal-id journal-id-type="publisher-id">CCD</journal-id><journal-title-group><journal-title>Contemporary Clinical Dentistry</journal-title></journal-title-group><issn pub-type="ppub">0976-237X</issn><issn pub-type="epub">0976-2361</issn><publisher><publisher-name>Medknow Publications & Media Pvt Ltd</publisher-name><publisher-loc>India</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">24124296</article-id><article-id pub-id-type="pmc">3793551</article-id><article-id pub-id-type="publisher-id">CCD-4-313</article-id><article-id pub-id-type="doi">10.4103/0976-237X.118368</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>The effect of pouring time on the dimensional accuracy of casts made from different irreversible hydrocolloid impression materials</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Wadhwa</surname><given-names>Supneet Singh</given-names></name><xref ref-type="aff" rid="aff1"></xref><xref ref-type="corresp" rid="cor1"></xref></contrib><contrib contrib-type="author"><name><surname>Mehta</surname><given-names>Richa</given-names></name><xref ref-type="aff" rid="aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Duggal</surname><given-names>Nidhi</given-names></name><xref ref-type="aff" rid="aff1"></xref></contrib><contrib contrib-type="author"><name><surname>Vasudeva</surname><given-names>Kamlesh</given-names></name><xref ref-type="aff" rid="aff1"></xref></contrib></contrib-group><aff id="aff1"><italic>Department of Prosthodontics, Government Dental College and Hospital, Patiala, Punjab, India</italic></aff><author-notes><corresp id="cor1"><bold>Correspondence:</bold> Dr. Supneet Singh Wadhwa, Department of Prosthodontics, Christian Dental College, C.M.C. and Hospital, Ludhiana, Punjab, India. E-mail: <email xlink:href="wadhwasupneet19@gmail.com">wadhwasupneet19@gmail.com</email></corresp></author-notes><pub-date pub-type="ppub"><season>Jul-Sep</season><year>2013</year></pub-date><volume>4</volume><issue>3</issue><fpage>313</fpage><lpage>318</lpage><permissions><copyright-statement>Copyright: © Contemporary Clinical Dentistry</copyright-statement><copyright-year>2013</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc-sa/3.0"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec id="st1"><title>Aims and Objectives:</title><p>To determine the time dependent accuracy of casts made from three different irreversible hydrocolloids.</p></sec><sec id="st2"><title>Materials and Methods:</title><p>The effect of delayed pouring on the accuracy of three different irreversible hydrocolloid impression materials – Regular set CA 37(Cavex, The Netherlands), regular set chromatic (Jeltrate, Dentsply), and fast set (Hydrogum soft, Zhermack Clinical) was investigated. A brass master die that contained two identical posts simulating two complete crown-tapered abutment preparations with reference grooves served as a standardized master model. A total of 120 impressions were made using specially prepared stock-perforated brass tray with 40 impressions of each material. The impressions were further sub-grouped according to four different storage time intervals: 0 min (immediately), 12 min, 30 min, and 1 h. The impressions were stored at room temperature in a zip-lock plastic bag. Interabutment and intraabutment distances were measured in the recovered stone dies (Type IV, Kalrock) using a profile projector with an accuracy of 0.001 mm. The data so obtained was analyzed statistically.</p></sec><sec id="st3"><title>Results:</title><p>Results of this study showed no statistically significant differences in the accuracy of casts obtained at different time intervals.</p></sec><sec id="st4"><title>Conclusion:</title><p>Because it is not always possible to pour the impression immediately in routine clinical practice, all irreversible hydrocolloid materials studied could be stored in a zip-lock plastic bag for upto 1 h without any significant distortion.</p></sec></abstract><kwd-group><kwd>Accuracy</kwd><kwd>delayed pouring</kwd><kwd>dimensional stability</kwd><kwd>irreversible hydrocolloids</kwd><kwd>profile projector</kwd></kwd-group></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Duggal, Nidhi" sort="Duggal, Nidhi" uniqKey="Duggal N" first="Nidhi" last="Duggal">Nidhi Duggal</name><name sortKey="Mehta, Richa" sort="Mehta, Richa" uniqKey="Mehta R" first="Richa" last="Mehta">Richa Mehta</name><name sortKey="Vasudeva, Kamlesh" sort="Vasudeva, Kamlesh" uniqKey="Vasudeva K" first="Kamlesh" last="Vasudeva">Kamlesh Vasudeva</name><name sortKey="Wadhwa, Supneet Singh" sort="Wadhwa, Supneet Singh" uniqKey="Wadhwa S" first="Supneet Singh" last="Wadhwa">Supneet Singh Wadhwa</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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