Assessment of Microleakage in Class II Cavities having Gingival Wall in Cementum using Three Different Posterior Composites
Identifieur interne : 001201 ( Ncbi/Merge ); précédent : 001200; suivant : 001202Assessment of Microleakage in Class II Cavities having Gingival Wall in Cementum using Three Different Posterior Composites
Auteurs : Vanamala Narayana [Inde] ; Srirekha Ashwathanarayana [Inde] ; Gururaj Nadig [Inde] ; Sushma Rudraswamy [Inde] ; Nagabhushana Doggalli [Inde] ; S. Vijai [Inde]Source :
- Journal of International Oral Health : JIOH [ 0976-7428 ] ; 2014.
Abstract
Dental composites are one of the most desired restorative materials today. Composite materials can be bonded successfully to human tooth enamel; however, developing the same degree of adhesion to dentin or cementum is a more challenging task. Polymerization contraction stress of dental composites is often associated with marginal and interfacial failures of bonded restorations. The magnitude of stress depends on composite composition and its ability to flow before gelation, which is related to the cavity configuration and curing characteristics of the composite.
This study was carried out on 24 extracted human molars and divided into three groups. Class II (slot) cavities were prepared on the mesial and distal surfaces of the teeth with the gingival wall in dentin/cementum, and the microleakage was observed. After preparation the teeth were randomly assigned into three groups of eight specimens each. The cavities were restored with: Group 1: Packable composite (Surefil, Dentsply); Group 2: Hybrid composite (Filtek Z250, 3M Dental Products); Group 3: Nanocomposite (Filtek Z350, 3M Dental Products). Sixteen samples of each group were subjected to 500 cycles of thermocycling between 5°C and 55°C. All the teeth were immersed in methylene blue for 8 h and then left in tap water for 12 h. The teeth were sectioned mesiodistally with a diamond disc, and examined under a stereomicroscope.
The analysis indicated that packable composite showed more microleakage than all the other groups. Hybrid composite showed less microleakage than packable composite, but more leakage than nanocomposite.
All composites under the study exhibited a certain amount of microleakage in the dentin/cementum margin. Packable composite showed the most microleakage and nanocomposite showed least microleakage.
Since these results were obtained in vitro, long-term clinical trials are needed to fully understand the performance of these materials.
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PubMed: 25214730
PubMed Central: 4148570
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Assessment of Microleakage in Class II Cavities having Gingival Wall in Cementum using Three Different Posterior Composites</title><author><name sortKey="Narayana, Vanamala" sort="Narayana, Vanamala" uniqKey="Narayana V" first="Vanamala" last="Narayana">Vanamala Narayana</name><affiliation wicri:level="1"><nlm:aff id="aff1">Senior Lecturer, Department of Conservative Dentistry and Endodontics, DAPMRV Dental College and Hospital, Bangalore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Senior Lecturer, Department of Conservative Dentistry and Endodontics, DAPMRV Dental College and Hospital, Bangalore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Ashwathanarayana, Srirekha" sort="Ashwathanarayana, Srirekha" uniqKey="Ashwathanarayana S" first="Srirekha" last="Ashwathanarayana">Srirekha Ashwathanarayana</name><affiliation wicri:level="1"><nlm:aff id="aff2">Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Nadig, Gururaj" sort="Nadig, Gururaj" uniqKey="Nadig G" first="Gururaj" last="Nadig">Gururaj Nadig</name><affiliation wicri:level="1"><nlm:aff id="aff3">Former Professor and Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Former Professor and Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Rudraswamy, Sushma" sort="Rudraswamy, Sushma" uniqKey="Rudraswamy S" first="Sushma" last="Rudraswamy">Sushma Rudraswamy</name><affiliation wicri:level="1"><nlm:aff id="aff4">Senior Lecturer, Department of Public Health Dentistry, JSS Dental College and Hospital, JSS University, Mysore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Senior Lecturer, Department of Public Health Dentistry, JSS Dental College and Hospital, JSS University, Mysore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Doggalli, Nagabhushana" sort="Doggalli, Nagabhushana" uniqKey="Doggalli N" first="Nagabhushana" last="Doggalli">Nagabhushana Doggalli</name><affiliation wicri:level="1"><nlm:aff id="aff5">Reader, Department of Oral Medicine and Radiology, JSS Dental College and Hospital, JSS University, Mysore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Reader, Department of Oral Medicine and Radiology, JSS Dental College and Hospital, JSS University, Mysore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Vijai, S" sort="Vijai, S" uniqKey="Vijai S" first="S" last="Vijai">S. Vijai</name><affiliation wicri:level="1"><nlm:aff id="aff6">Reader, Department of Pedodontics and Public Health Dentistry, Sri Aurobindo Dental College and Hospital, Indore, Madhya Pradesh, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Reader, Department of Pedodontics and Public Health Dentistry, Sri Aurobindo Dental College and Hospital, Indore, Madhya Pradesh</wicri:regionArea><wicri:noRegion>Madhya Pradesh</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25214730</idno><idno type="pmc">4148570</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148570</idno><idno type="RBID">PMC:4148570</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000656</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000656</idno><idno type="wicri:Area/Pmc/Curation">000656</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000656</idno><idno type="wicri:Area/Pmc/Checkpoint">000463</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000463</idno><idno type="wicri:Area/Ncbi/Merge">001201</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Assessment of Microleakage in Class II Cavities having Gingival Wall in Cementum using Three Different Posterior Composites</title><author><name sortKey="Narayana, Vanamala" sort="Narayana, Vanamala" uniqKey="Narayana V" first="Vanamala" last="Narayana">Vanamala Narayana</name><affiliation wicri:level="1"><nlm:aff id="aff1">Senior Lecturer, Department of Conservative Dentistry and Endodontics, DAPMRV Dental College and Hospital, Bangalore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Senior Lecturer, Department of Conservative Dentistry and Endodontics, DAPMRV Dental College and Hospital, Bangalore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Ashwathanarayana, Srirekha" sort="Ashwathanarayana, Srirekha" uniqKey="Ashwathanarayana S" first="Srirekha" last="Ashwathanarayana">Srirekha Ashwathanarayana</name><affiliation wicri:level="1"><nlm:aff id="aff2">Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Nadig, Gururaj" sort="Nadig, Gururaj" uniqKey="Nadig G" first="Gururaj" last="Nadig">Gururaj Nadig</name><affiliation wicri:level="1"><nlm:aff id="aff3">Former Professor and Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Former Professor and Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Rudraswamy, Sushma" sort="Rudraswamy, Sushma" uniqKey="Rudraswamy S" first="Sushma" last="Rudraswamy">Sushma Rudraswamy</name><affiliation wicri:level="1"><nlm:aff id="aff4">Senior Lecturer, Department of Public Health Dentistry, JSS Dental College and Hospital, JSS University, Mysore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Senior Lecturer, Department of Public Health Dentistry, JSS Dental College and Hospital, JSS University, Mysore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Doggalli, Nagabhushana" sort="Doggalli, Nagabhushana" uniqKey="Doggalli N" first="Nagabhushana" last="Doggalli">Nagabhushana Doggalli</name><affiliation wicri:level="1"><nlm:aff id="aff5">Reader, Department of Oral Medicine and Radiology, JSS Dental College and Hospital, JSS University, Mysore, Karnataka, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Reader, Department of Oral Medicine and Radiology, JSS Dental College and Hospital, JSS University, Mysore, Karnataka</wicri:regionArea><wicri:noRegion>Karnataka</wicri:noRegion></affiliation></author><author><name sortKey="Vijai, S" sort="Vijai, S" uniqKey="Vijai S" first="S" last="Vijai">S. Vijai</name><affiliation wicri:level="1"><nlm:aff id="aff6">Reader, Department of Pedodontics and Public Health Dentistry, Sri Aurobindo Dental College and Hospital, Indore, Madhya Pradesh, India</nlm:aff><country xml:lang="fr">Inde</country><wicri:regionArea>Reader, Department of Pedodontics and Public Health Dentistry, Sri Aurobindo Dental College and Hospital, Indore, Madhya Pradesh</wicri:regionArea><wicri:noRegion>Madhya Pradesh</wicri:noRegion></affiliation></author></analytic><series><title level="j">Journal of International Oral Health : JIOH</title><idno type="ISSN">0976-7428</idno><idno type="eISSN">0976-1799</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="st1"><title>Background:</title><p>Dental composites are one of the most desired restorative materials today. Composite materials can be bonded successfully to human tooth enamel; however, developing the same degree of adhesion to dentin or cementum is a more challenging task. Polymerization contraction stress of dental composites is often associated with marginal and interfacial failures of bonded restorations. The magnitude of stress depends on composite composition and its ability to flow before gelation, which is related to the cavity configuration and curing characteristics of the composite.</p></sec><sec id="st2"><title>Materials and Methods:</title><p>This study was carried out on 24 extracted human molars and divided into three groups. Class II (slot) cavities were prepared on the mesial and distal surfaces of the teeth with the gingival wall in dentin/cementum, and the microleakage was observed. After preparation the teeth were randomly assigned into three groups of eight specimens each. The cavities were restored with: Group 1: Packable composite (Surefil, Dentsply); Group 2: Hybrid composite (Filtek Z250, 3M Dental Products); Group 3: Nanocomposite (Filtek Z350, 3M Dental Products). Sixteen samples of each group were subjected to 500 cycles of thermocycling between 5°C and 55°C. All the teeth were immersed in methylene blue for 8 h and then left in tap water for 12 h. The teeth were sectioned mesiodistally with a diamond disc, and examined under a stereomicroscope.</p></sec><sec id="st3"><title>Results:</title><p>The analysis indicated that packable composite showed more microleakage than all the other groups. Hybrid composite showed less microleakage than packable composite, but more leakage than nanocomposite.</p></sec><sec id="st4"><title>Conclusion:</title><p>All composites under the study exhibited a certain amount of microleakage in the dentin/cementum margin. Packable composite showed the most microleakage and nanocomposite showed least microleakage.</p><p>Since these results were obtained in vitro, long-term clinical trials are needed to fully understand the performance of these materials.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Neiva, If" uniqKey="Neiva I">IF Neiva</name></author><author><name sortKey="De Andrada, Ma" uniqKey="De Andrada M">MA de Andrada</name></author><author><name sortKey="Baratieri, Ln" uniqKey="Baratieri L">LN Baratieri</name></author><author><name sortKey="Monteiro, S" uniqKey="Monteiro S">S Monteiro</name></author><author><name sortKey="Ritter, Av" uniqKey="Ritter A">AV Ritter</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Braga, Rr" uniqKey="Braga R">RR Braga</name></author><author><name sortKey="Ferracane, Jl" uniqKey="Ferracane J">JL 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<front><journal-meta><journal-id journal-id-type="nlm-ta">J Int Oral Health</journal-id><journal-id journal-id-type="iso-abbrev">J Int Oral Health</journal-id><journal-id journal-id-type="publisher-id">JIOH</journal-id><journal-title-group><journal-title>Journal of International Oral Health : JIOH</journal-title></journal-title-group><issn pub-type="ppub">0976-7428</issn><issn pub-type="epub">0976-1799</issn><publisher><publisher-name>Dentmedpub Research and Printing Co</publisher-name><publisher-loc>India</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25214730</article-id><article-id pub-id-type="pmc">4148570</article-id><article-id pub-id-type="publisher-id">JIOH-6-35</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Research</subject></subj-group></article-categories><title-group><article-title>Assessment of Microleakage in Class II Cavities having Gingival Wall in Cementum using Three Different Posterior Composites</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Narayana</surname><given-names>Vanamala</given-names></name><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="corresp" rid="cor1"></xref></contrib><contrib contrib-type="author"><name><surname>Ashwathanarayana</surname><given-names>Srirekha</given-names></name><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name><surname>Nadig</surname><given-names>Gururaj</given-names></name><xref ref-type="aff" rid="aff3">3</xref></contrib><contrib contrib-type="author"><name><surname>Rudraswamy</surname><given-names>Sushma</given-names></name><xref ref-type="aff" rid="aff4">4</xref></contrib><contrib contrib-type="author"><name><surname>Doggalli</surname><given-names>Nagabhushana</given-names></name><xref ref-type="aff" rid="aff5">5</xref></contrib><contrib contrib-type="author"><name><surname>Vijai</surname><given-names>S</given-names></name><xref ref-type="aff" rid="aff6">6</xref></contrib></contrib-group><aff id="aff1"><label>1</label>Senior Lecturer, Department of Conservative Dentistry and Endodontics, DAPMRV Dental College and Hospital, Bangalore, Karnataka, India</aff><aff id="aff2"><label>2</label>Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka, India</aff><aff id="aff3"><label>3</label>Former Professor and Head, Department of Conservative Dentistry and Endodontics, The Oxford Dental College Hospital and Research Center, Bangalore, Karnataka, India</aff><aff id="aff4"><label>4</label>Senior Lecturer, Department of Public Health Dentistry, JSS Dental College and Hospital, JSS University, Mysore, Karnataka, India</aff><aff id="aff5"><label>5</label>Reader, Department of Oral Medicine and Radiology, JSS Dental College and Hospital, JSS University, Mysore, Karnataka, India</aff><aff id="aff6"><label>6</label>Reader, Department of Pedodontics and Public Health Dentistry, Sri Aurobindo Dental College and Hospital, Indore, Madhya Pradesh, India</aff><author-notes><corresp id="cor1"><bold><italic>Correspondence</italic>:</bold> Dr. Narayana V. Senior Lecturer, Department of Conservative Dentistry and Endodontics, DAPMRV Dental College and Hospital, Bangalore, Karnataka, India. Phone: +91-9880010512. Email: <email xlink:href="vanamalahere@rediffmail.com">vanamalahere@rediffmail.com</email></corresp></author-notes><pub-date pub-type="ppub"><season>Jul-Aug</season><year>2014</year></pub-date><volume>6</volume><issue>4</issue><fpage>35</fpage><lpage>41</lpage><history><date date-type="received"><day>12</day><month>1</month><year>2014</year></date><date date-type="accepted"><day>13</day><month>4</month><year>2014</year></date></history><permissions><copyright-statement>Copyright: © J. Int Oral Health</copyright-statement><copyright-year>2014</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>Background:</title><p>Dental composites are one of the most desired restorative materials today. Composite materials can be bonded successfully to human tooth enamel; however, developing the same degree of adhesion to dentin or cementum is a more challenging task. Polymerization contraction stress of dental composites is often associated with marginal and interfacial failures of bonded restorations. The magnitude of stress depends on composite composition and its ability to flow before gelation, which is related to the cavity configuration and curing characteristics of the composite.</p></sec><sec id="st2"><title>Materials and Methods:</title><p>This study was carried out on 24 extracted human molars and divided into three groups. Class II (slot) cavities were prepared on the mesial and distal surfaces of the teeth with the gingival wall in dentin/cementum, and the microleakage was observed. After preparation the teeth were randomly assigned into three groups of eight specimens each. The cavities were restored with: Group 1: Packable composite (Surefil, Dentsply); Group 2: Hybrid composite (Filtek Z250, 3M Dental Products); Group 3: Nanocomposite (Filtek Z350, 3M Dental Products). Sixteen samples of each group were subjected to 500 cycles of thermocycling between 5°C and 55°C. All the teeth were immersed in methylene blue for 8 h and then left in tap water for 12 h. The teeth were sectioned mesiodistally with a diamond disc, and examined under a stereomicroscope.</p></sec><sec id="st3"><title>Results:</title><p>The analysis indicated that packable composite showed more microleakage than all the other groups. Hybrid composite showed less microleakage than packable composite, but more leakage than nanocomposite.</p></sec><sec id="st4"><title>Conclusion:</title><p>All composites under the study exhibited a certain amount of microleakage in the dentin/cementum margin. Packable composite showed the most microleakage and nanocomposite showed least microleakage.</p><p>Since these results were obtained in vitro, long-term clinical trials are needed to fully understand the performance of these materials.</p></sec></abstract><kwd-group><kwd>Class II cavity</kwd><kwd>microleakage</kwd><kwd>gingival wall</kwd><kwd>posterior composites</kwd></kwd-group></article-meta></front></pmc><affiliations><list><country><li>Inde</li></country></list><tree><country name="Inde"><noRegion><name sortKey="Narayana, Vanamala" sort="Narayana, Vanamala" uniqKey="Narayana V" first="Vanamala" last="Narayana">Vanamala Narayana</name></noRegion><name sortKey="Ashwathanarayana, Srirekha" sort="Ashwathanarayana, Srirekha" uniqKey="Ashwathanarayana S" first="Srirekha" last="Ashwathanarayana">Srirekha Ashwathanarayana</name><name sortKey="Doggalli, Nagabhushana" sort="Doggalli, Nagabhushana" uniqKey="Doggalli N" first="Nagabhushana" last="Doggalli">Nagabhushana Doggalli</name><name sortKey="Nadig, Gururaj" sort="Nadig, Gururaj" uniqKey="Nadig G" first="Gururaj" last="Nadig">Gururaj Nadig</name><name sortKey="Rudraswamy, Sushma" sort="Rudraswamy, Sushma" uniqKey="Rudraswamy S" first="Sushma" last="Rudraswamy">Sushma Rudraswamy</name><name sortKey="Vijai, S" sort="Vijai, S" uniqKey="Vijai S" first="S" last="Vijai">S. 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