Effect of Mixing Methods on Mechanical Properties of Alginate Impression Materials
Background: A commercial mechanical mixer is available to make the mixing of alginate more convenient and more consistent for the practitioner; however, there is very little information on the mechanical properties of alginate mixed with this device as compared with hand mixing. Purpose: To compare...
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| Veröffentlicht in: | Journal of prosthodontics 2005-12, Vol.14 (4), p.221-225 |
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| creator | Frey, Gary Lu, Huan Powers, John |
| description | Background: A commercial mechanical mixer is available to make the mixing of alginate more convenient and more consistent for the practitioner; however, there is very little information on the mechanical properties of alginate mixed with this device as compared with hand mixing.
Purpose: To compare the mechanical properties of alginate impression materials mixed with a mechanical mixer (Alginator II, Cadco) and hand mixing.
Material and Methods: Three alginate impression materials (Identic, Jeltrate, and Kromopan) were tested. Strain in compression, elastic recovery, and compressive strength were measured according to ANSI/ADA specification no. 18‐1992; tear energy was measured using a pants tear test. Five specimens were prepared for each group with 12 groups for the mechanical mixer and 12 groups for hand mixing, for a total of 120 specimens. A two‐way analysis of variance and Fisher's PLSD test at the 0.05 level of significance were used to analyze the data.
Results: There were statistically significant differences in properties among the materials, but mixing technique had no statistically significant effect on strain in compression and tear energy.
Conclusion: The mechanical mixer improved elastic recovery and compressive strength of the alginate impression materials tested and had no effect on strain in compression and tear energy. A mechanical mixer facilitates the mixing of alginate impression materials and improves some mechanical properties. |
| doi_str_mv | 10.1111/j.1532-849X.2005.00047.x |
| format | Article |
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Purpose: To compare the mechanical properties of alginate impression materials mixed with a mechanical mixer (Alginator II, Cadco) and hand mixing.
Material and Methods: Three alginate impression materials (Identic, Jeltrate, and Kromopan) were tested. Strain in compression, elastic recovery, and compressive strength were measured according to ANSI/ADA specification no. 18‐1992; tear energy was measured using a pants tear test. Five specimens were prepared for each group with 12 groups for the mechanical mixer and 12 groups for hand mixing, for a total of 120 specimens. A two‐way analysis of variance and Fisher's PLSD test at the 0.05 level of significance were used to analyze the data.
Results: There were statistically significant differences in properties among the materials, but mixing technique had no statistically significant effect on strain in compression and tear energy.
Conclusion: The mechanical mixer improved elastic recovery and compressive strength of the alginate impression materials tested and had no effect on strain in compression and tear energy. A mechanical mixer facilitates the mixing of alginate impression materials and improves some mechanical properties.</description><identifier>ISSN: 1059-941X</identifier><identifier>EISSN: 1532-849X</identifier><identifier>DOI: 10.1111/j.1532-849X.2005.00047.x</identifier><identifier>PMID: 16359477</identifier><language>eng</language><publisher>350 Main Street , Malden , MA 02148-5020 , USA , and PO Box 1354, 9600 Garsington Road , Oxford OX4 2XG , England: Blackwell Science Ltd</publisher><subject>Alginates - chemistry ; Chemical Phenomena ; Chemistry, Physical ; Colloids - chemistry ; Compressive Strength ; Dental Impression Materials - chemistry ; Dental Impression Technique - instrumentation ; Dentistry ; Drug Compounding ; elastic recovery ; Elasticity ; hand mixing ; Humans ; irreversible hydrocolloid ; Materials Testing ; mechanical mixing ; Organic Chemicals - chemistry ; strain in compression ; Stress, Mechanical ; Surface Properties ; tear energy</subject><ispartof>Journal of prosthodontics, 2005-12, Vol.14 (4), p.221-225</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3867-bcf271ba830d337c643a596c8d66859efc6fd02a8957ef3589d4e167c99b781d3</citedby><cites>FETCH-LOGICAL-c3867-bcf271ba830d337c643a596c8d66859efc6fd02a8957ef3589d4e167c99b781d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1532-849X.2005.00047.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1532-849X.2005.00047.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16359477$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Frey, Gary</creatorcontrib><creatorcontrib>Lu, Huan</creatorcontrib><creatorcontrib>Powers, John</creatorcontrib><title>Effect of Mixing Methods on Mechanical Properties of Alginate Impression Materials</title><title>Journal of prosthodontics</title><addtitle>J Prosthodont</addtitle><description>Background: A commercial mechanical mixer is available to make the mixing of alginate more convenient and more consistent for the practitioner; however, there is very little information on the mechanical properties of alginate mixed with this device as compared with hand mixing.
Purpose: To compare the mechanical properties of alginate impression materials mixed with a mechanical mixer (Alginator II, Cadco) and hand mixing.
Material and Methods: Three alginate impression materials (Identic, Jeltrate, and Kromopan) were tested. Strain in compression, elastic recovery, and compressive strength were measured according to ANSI/ADA specification no. 18‐1992; tear energy was measured using a pants tear test. Five specimens were prepared for each group with 12 groups for the mechanical mixer and 12 groups for hand mixing, for a total of 120 specimens. A two‐way analysis of variance and Fisher's PLSD test at the 0.05 level of significance were used to analyze the data.
Results: There were statistically significant differences in properties among the materials, but mixing technique had no statistically significant effect on strain in compression and tear energy.
Conclusion: The mechanical mixer improved elastic recovery and compressive strength of the alginate impression materials tested and had no effect on strain in compression and tear energy. A mechanical mixer facilitates the mixing of alginate impression materials and improves some mechanical properties.</description><subject>Alginates - chemistry</subject><subject>Chemical Phenomena</subject><subject>Chemistry, Physical</subject><subject>Colloids - chemistry</subject><subject>Compressive Strength</subject><subject>Dental Impression Materials - chemistry</subject><subject>Dental Impression Technique - instrumentation</subject><subject>Dentistry</subject><subject>Drug Compounding</subject><subject>elastic recovery</subject><subject>Elasticity</subject><subject>hand mixing</subject><subject>Humans</subject><subject>irreversible hydrocolloid</subject><subject>Materials Testing</subject><subject>mechanical mixing</subject><subject>Organic Chemicals - chemistry</subject><subject>strain in compression</subject><subject>Stress, Mechanical</subject><subject>Surface Properties</subject><subject>tear energy</subject><issn>1059-941X</issn><issn>1532-849X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkE9P2zAYh61p0wpsX2HKiVsyO47_HTggBoypHVW1QW-W67wGlzQpdirKt8dZq3KdL-_P8vN7LT0IZQQXJJ3vy4IwWuayUvOixJgVGONKFNsP6Ojw8DFlzFSuKjIfoeMYlxgTwiT5jEaEU6YqIY7Q7NI5sH3WuWzit759yCbQP3Z1zLo2RftoWm9Nk01Dt4bQe4gDet48-Nb0kN2s1gFi9AOc7sGbJn5Bn1wa8HU_T9Dfq8s_Fz_z8e31zcX5OLdUcpEvrCsFWRhJcU2psLyihiluZc25ZAqc5a7GpZGKCXCUSVVXQLiwSi2EJDU9Qae7vevQPW8g9nrlo4WmMS10m6i5VITwkiRQ7kAbuhgDOL0OfmXCqyZYDz71Ug_a9KBNDz71P596m6rf9n9sFiuo34t7gQk42wEvvoHX_16sf91OZymlfr7r-9jD9tA34UlzQQXT97-vNSM_hLwr55rSNzLmk04</recordid><startdate>200512</startdate><enddate>200512</enddate><creator>Frey, Gary</creator><creator>Lu, Huan</creator><creator>Powers, John</creator><general>Blackwell Science Ltd</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>200512</creationdate><title>Effect of Mixing Methods on Mechanical Properties of Alginate Impression Materials</title><author>Frey, Gary ; Lu, Huan ; Powers, John</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3867-bcf271ba830d337c643a596c8d66859efc6fd02a8957ef3589d4e167c99b781d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Alginates - chemistry</topic><topic>Chemical Phenomena</topic><topic>Chemistry, Physical</topic><topic>Colloids - chemistry</topic><topic>Compressive Strength</topic><topic>Dental Impression Materials - chemistry</topic><topic>Dental Impression Technique - instrumentation</topic><topic>Dentistry</topic><topic>Drug Compounding</topic><topic>elastic recovery</topic><topic>Elasticity</topic><topic>hand mixing</topic><topic>Humans</topic><topic>irreversible hydrocolloid</topic><topic>Materials Testing</topic><topic>mechanical mixing</topic><topic>Organic Chemicals - chemistry</topic><topic>strain in compression</topic><topic>Stress, Mechanical</topic><topic>Surface Properties</topic><topic>tear energy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Frey, Gary</creatorcontrib><creatorcontrib>Lu, Huan</creatorcontrib><creatorcontrib>Powers, John</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of prosthodontics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Frey, Gary</au><au>Lu, Huan</au><au>Powers, John</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Mixing Methods on Mechanical Properties of Alginate Impression Materials</atitle><jtitle>Journal of prosthodontics</jtitle><addtitle>J Prosthodont</addtitle><date>2005-12</date><risdate>2005</risdate><volume>14</volume><issue>4</issue><spage>221</spage><epage>225</epage><pages>221-225</pages><issn>1059-941X</issn><eissn>1532-849X</eissn><abstract>Background: A commercial mechanical mixer is available to make the mixing of alginate more convenient and more consistent for the practitioner; however, there is very little information on the mechanical properties of alginate mixed with this device as compared with hand mixing.
Purpose: To compare the mechanical properties of alginate impression materials mixed with a mechanical mixer (Alginator II, Cadco) and hand mixing.
Material and Methods: Three alginate impression materials (Identic, Jeltrate, and Kromopan) were tested. Strain in compression, elastic recovery, and compressive strength were measured according to ANSI/ADA specification no. 18‐1992; tear energy was measured using a pants tear test. Five specimens were prepared for each group with 12 groups for the mechanical mixer and 12 groups for hand mixing, for a total of 120 specimens. A two‐way analysis of variance and Fisher's PLSD test at the 0.05 level of significance were used to analyze the data.
Results: There were statistically significant differences in properties among the materials, but mixing technique had no statistically significant effect on strain in compression and tear energy.
Conclusion: The mechanical mixer improved elastic recovery and compressive strength of the alginate impression materials tested and had no effect on strain in compression and tear energy. A mechanical mixer facilitates the mixing of alginate impression materials and improves some mechanical properties.</abstract><cop>350 Main Street , Malden , MA 02148-5020 , USA , and PO Box 1354, 9600 Garsington Road , Oxford OX4 2XG , England</cop><pub>Blackwell Science Ltd</pub><pmid>16359477</pmid><doi>10.1111/j.1532-849X.2005.00047.x</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of prosthodontics, 2005-12, Vol.14 (4), p.221-225 |
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| language | eng |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Alginates - chemistry Chemical Phenomena Chemistry, Physical Colloids - chemistry Compressive Strength Dental Impression Materials - chemistry Dental Impression Technique - instrumentation Dentistry Drug Compounding elastic recovery Elasticity hand mixing Humans irreversible hydrocolloid Materials Testing mechanical mixing Organic Chemicals - chemistry strain in compression Stress, Mechanical Surface Properties tear energy |
| title | Effect of Mixing Methods on Mechanical Properties of Alginate Impression Materials |
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