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The Effect of Different Chemical Surface Treatments of Denture Teeth on Shear Bond Strength: A Comparative Study

Identifieur interne : 000346 ( Main/Merge ); précédent : 000345; suivant : 000347

The Effect of Different Chemical Surface Treatments of Denture Teeth on Shear Bond Strength: A Comparative Study

Auteurs : Gauravi Jain ; Umesh Palekar ; Vaibav Awinashe ; Sunil Kumar Mishra ; Abhishek Kawadkar ; Tripti Rahangdale

Source :

Journal of Clinical and Diagnostic Research : JCDR [ 2249-782X ] ; 2014.

RBID : PMC:4129317

Abstract

Background: The development of better cross linked acrylic resin teeth has solved the problems related to wearing and discoloration of acrylic teeth. The same cross linking at ridge lap region acts as a double edge sword as it weakens the bond between denture base and tooth.

Aim of Study: The purpose of study was to evaluate the effect of surface treatment on the bond strength of resin teeth to denture base resin using monomethyl methacrylate monomer and dichloromethane with no surface treatment acting as control.

Settings and Design:Denture base cylinder samples in wax (n=180) were made with maxillary central incisor attached at 450 (JIST 6506). These samples were randomly and equally divided into three groups of 60 each. These specimens were then flasked, dewaxed as per the standard protocol.

Materials and Methods: Before acrylization, ridge lap area was treated as follows: Group A- no surface treatment act as control, Group B treated with monomethyl methacrylate monomer, Group C treated with dichloromethane. Digitally controlled acryliser was used for acrylization as per manufacturer’s instructions and shear bond strength was tested on Universal Testing Machine (Servo Hydraulic, 50kN High Strain, BISS Research).

Statistical Analysis used: Result was statistically analyzed with One-way analysis of variance (ANOVA) and Post-hoc ANOVA Tukey’s HSD test at 5% level of significance.

Results: The application of dichloromethane showed increased bond strength between cross linked acrylic resin teeth and heat cure denture base resin followed by monomethyl methacrylate monomer and control group.

Conclusion: The application of dichloromethane on the ridge lap surface of the resin teeth before packing of the dough into the mold significantly increased the bond strength between cross linked acrylic resin teeth and heat cure denture base resin.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129317

DOI: 10.7860/JCDR/2014/8420.4474
PubMed: 25121057
PubMed Central: 4129317

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PMC:4129317

Le document en format XML

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<author><name sortKey="Jain, Gauravi" sort="Jain, Gauravi" uniqKey="Jain G" first="Gauravi" last="Jain">Gauravi Jain</name>
<affiliation><nlm:aff id="aff1">Reader, Department of Maxillofacial Prosthodontics and Implantology,<institution>Rishiraj College of Dental Sciences and Research Centre</institution>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">The Effect of Different Chemical Surface Treatments of Denture Teeth on Shear Bond Strength: A Comparative Study</title>
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<affiliation><nlm:aff id="aff2">Professor & Head, Department of Maxillofacial Prosthodontics and Implantology,<institution>Modern Dental College & Research Centre</institution>
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.</nlm:aff>
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.</nlm:aff>
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<affiliation><nlm:aff id="aff6">Reader, Department of Prosthodontics,<institution>Mansarovar Dental College and Research Centre</institution>
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<front><div type="abstract" xml:lang="en"><p><bold>Background:</bold>
 The development of better cross linked acrylic resin teeth has solved the problems related to wearing and discoloration of acrylic teeth. The same cross linking at ridge lap region acts as a double edge sword as it weakens the bond between denture base and tooth.</p>
<p><bold>Aim of Study:</bold>
 The purpose of study was to evaluate the effect of surface treatment on the bond strength of resin teeth to denture base resin using monomethyl methacrylate monomer and dichloromethane with no surface treatment acting as control.</p>
<p><bold>Settings and Design:</bold>
Denture base cylinder samples in wax (n=180) were made with maxillary central incisor attached at 450 (JIST 6506). These samples were randomly and equally divided into three groups of 60 each. These specimens were then flasked, dewaxed as per the standard protocol. </p>
<p><bold>Materials and Methods:</bold>
 Before acrylization, ridge lap area was treated as follows: Group A- no surface treatment act as control, Group B treated with monomethyl methacrylate monomer, Group C treated with dichloromethane. Digitally controlled acryliser was used for acrylization as per manufacturer’s instructions and shear bond strength was tested on Universal Testing Machine (Servo Hydraulic, 50kN High Strain, BISS Research). </p>
<p><bold>Statistical Analysis used:</bold>
 Result was statistically analyzed with One-way analysis of variance (ANOVA) and Post-hoc ANOVA Tukey’s HSD test at 5% level of significance. </p>
<p><bold>Results:</bold>
 The application of dichloromethane showed increased bond strength between cross linked acrylic resin teeth and heat cure denture base resin followed by monomethyl methacrylate monomer and control group. </p>
<p><bold>Conclusion:</bold>
 The application of dichloromethane on the ridge lap surface of the resin teeth before packing of the dough into the mold significantly increased the bond strength between cross linked acrylic resin teeth and heat cure denture base resin.</p>
</div>
</front>
</TEI>
</record>

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The Effect of Different Chemical Surface Treatments of Denture Teeth on Shear Bond Strength: A Comparative Study

The Effect of Different Chemical Surface Treatments of Denture Teeth on Shear Bond Strength: A Comparative Study

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Abstract

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