The Effect of Smear Layer on Push - Out Bond Strength to Dentin of Bioceramic Sealer ( in Vitro Study )

Hamid Abbas Hamid; Abdul-Kareem Jassim Al-Azzawi

doi:10.12816/0015057

Article Details

The Effect of Smear Layer on Push - Out Bond Strength to Dentin of Bioceramic Sealer ( in Vitro Study )

Authors:

Hamid Abbas Hamid | Abdul-Kareem Jassim Al-Azzawi

Publisher:

College of Dentistry : University of Baghdad

Main Topics:

Medicine

Journal:

Journal of Baghdad College of Dentistry 2013 Vol.25 Issue 4, pp.5-11

Document Type:

Article

Publication Date:

12/2013

Document Language:

English

Document ID (Org No.):

71024

Frequency:

Quarterly

eISSN:

23115270

pISSN:

16800087

DOI:

10.12816/0015057

Descriptors:

Keywords:

Abstract:

 Background: Sealers should demonstrate adhesive properties to dentin, decreasing the chance of endodontictreatment failure. Increased adhesive properties to dentin may lead to greater strength of the restored tooth, whichmay provide greater resistance to tooth fracture and clinical longevity of an endodontically treated tooth. The aimof this study was to evaluate the shear bond strength of Bioceramic iRoot SP sealer, AH plus sealer and Apexit plussealer in absence or presence of smear layer using push out bond strength test.Materials and Methods: Sixty straight single roots of the mandibular premolars were selected for this study. All canalswere instrumented using ProTaper rotary instruments to achieve tapered canal walls, instrumentation was done withcopious irrigation of 5.25% sodium hypochlorite. Roots were randomly divided into three groups according to thetype of sealer used (twenty teeth for each group): Group A: Apexit plus + gutta percha, Group B: AH plus sealer +gutta percha, Group C: iRoot SP sealer + gutta percha .Then groups were subdivided according to types of finalirrigation into two subgroups. Groups (A1, B1, and C1) were irrigated with 5 ml of 5.25% NaOCl for 1 minute whileGroups (A2, B2, and C2), the smear layer was removed with 5 ml of 17% EDTA for 1 minute. All groups were rinsed withdistilled water and then obturated with cold lateral condensation technique, the roots then stored in moistenvironment at 37°C for one week. The roots were embedded in clear acrylic resin and three horizontal sectionswere prepared at a thickness of 1 mm ±0.1 in the apical, middle and coronal parts of each root. The test specimenswere subjected to the push-out test method using a Universal Test Machine that carried 1-mm, 0.5- mm and 0.3-mmplungers for coronal, middle and apical specimens, respectively. The loading speed was 0.5 mm/ min. The computershowed the higher bond force before dislodgment of the filling material. These forces were divided by the surfacearea to obtain the bond strength in MPa.Results: The results showed that the bond strengths of iRoot SP and AH Plus were significantly higher than those ofApexit plus, but there was no significant difference between the bond strength of iRoot SP and AH Plus.In terms ofroot segments, the bond strengths in the middle specimens and the apical specimens were higher compared withthe bond strengths in the coronal specimens.Conclusion: The presence or absence of smear layer did not significantly affect the bond strength of Bioceramicfilling materials.

Article Details

The Effect of Smear Layer on Push - Out Bond Strength to Dentin of Bioceramic Sealer ( in Vitro Study )

Authors:

Hamid Abbas Hamid | Abdul-Kareem Jassim Al-Azzawi

Publisher:

College of Dentistry : University of Baghdad

Main Topics:

Medicine

Journal:

Journal of Baghdad College of Dentistry 2013 Vol.25 Issue 4, pp.5-11

Document Type:

Article

Publication Date:

12/2013

Document Language:

English

Document ID (Org No.):

71024

Frequency:

Quarterly

eISSN:

23115270

pISSN:

16800087

DOI:

10.12816/0015057

Descriptors:

MEDICAL SCIENCES

DENTISTRY

DENTAL HEALTH

TOOTH CARE

SMEAR TESTS

Bioceramic Sealer

Smear Layer

Push Out Test

Issues

Article Details

Authors: Hamid Abbas Hamid | Abdul-Kareem Jassim Al-Azzawi

Publisher: College of Dentistry : University of Baghdad

Main Topics: Medicine

Journal: Journal of Baghdad College of Dentistry 2013 Vol.25 Issue 4, pp.5-11

Document Type: Article

Publication Date: 12/2013

Document Language: English

Document ID (Org No.): 71024

Frequency: Quarterly

eISSN: 23115270

pISSN: 16800087

DOI: 10.12816/0015057

Descriptors:

Issues

Authors:

Hamid Abbas Hamid | Abdul-Kareem Jassim Al-Azzawi

Publisher:

College of Dentistry : University of Baghdad

Main Topics:

Medicine

Journal:

Journal of Baghdad College of Dentistry 2013 Vol.25 Issue 4, pp.5-11

Document Type:

Article

Publication Date:

12/2013

Document Language:

English

Document ID (Org No.):

71024

Frequency:

Quarterly

eISSN:

23115270

pISSN:

16800087

DOI:

10.12816/0015057