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Master Thesis

Étude de l’étanchéité des composites de site 2 par obturation conventionnelle versus Compothixo de Kerr®

Abstract : Introduction :. The contraction phenomenon of the composite resins can create anomalies leading to leakage. The Compothixo® technology of Kerr optimizes the composite thixotropic properties by modifying its viscosity due to vibrations generated by the instrument. Materials and Methods : Our study was based on the investigation if the thixotropy could improve the marginal leakage of class II composite. So first, we compared the penetration depth of an aqueous solution of methylene blue at the tooth/material interface on 50 teeth prepared with the conventional instrument or the Kerr Compothixo®. Results : Our results show a depth penetration average of the methylene blue solution of 0.92 mm with the conventional instrument compared to 0.58 mm with the Kerr Compothixo®. Those results suggest that the use of Kerr Compothixo® leads to a better sealing on the edge class II composites. Indeed, the penetration depth is significantly (p= 0.03) reduced (almost by the half) in the prepared teeth when there are prepared with the Kerr Compothixo®. Conclusion : Our results suggest a beneficial use of Kerr Compothixo® by practitioners as a new method, compared to the classical instrument.
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Master Thesis
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Submitted on : Thursday, December 10, 2015 - 1:58:25 PM
Last modification on : Wednesday, January 15, 2020 - 9:03:57 AM
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Guillaume Naury. Étude de l’étanchéité des composites de site 2 par obturation conventionnelle versus Compothixo de Kerr®. Chirurgie. 2015. ⟨dumas-01241362⟩

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