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Comparative evaluation of shear bond strength and penetration of self-etch sealant with and without enamel deproteinization: an in vitro study

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Abstract

Aim

To compare the shear bond strength and penetration ability of self-etch sealant with and without enamel deproteinization.

Materials and methods

A total of 37 sound extracted teeth were selected and 31 teeth were used for testing shear bond strength of self-etch sealant. For this, crowns portions of selected teeth were cut longitudinally with a diamond disc into a mesial and distal half, thereby yielding 62 samples. They were further divided into two groups; in Group 1, samples were deproteinised with 5.25% sodium hypochlorite and a sealant cylinder was built on the proximal surface. In Group 2, sealant cylinders were built without deproteinising the surface. Shear bond strength was tested using Universal Testing Machine. The remaining six teeth were used for penetration evaluation of self-etch sealant. In Group 1, the occlusal surface was deproteinised with 5.25% sodium hypochlorite and self-etch sealant was directly applied. In Group 2, sealant was applied without deproteinisation. The samples obtained after sectioning were observed under scanning electron microscope for sealant penetration. Mann–Whitney test and Chi-square analysis were utilised for statistical analysis.

Results

The results showed that the shear bond strength of the two groups was statistically not significant (p = 0.23). However, the comparison of % penetration revealed a statistically significant difference between the groups (p = 0.016).

Conclusion

Deproteinising the enamel surface prior to application of self-etch sealant enhanced the penetration ability of the sealant but did not show any effect on shear bond strength.

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Data availability

If required, the data is available with the corressponding author.

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Authors and Affiliations

  1. Department of Pedodontics and Preventive Dentistry, Inderprastha Dental College and Hospital, Ghaziabad, Uttar Pradesh, 201010, India

    M. Agarwal

  2. Department of Pedodontics and Preventive Dentistry, Teerthanker Mahaveer Dental College and Research Centre, Delhi Road, Moradabad, Uttar Pradesh, 244102, India

    K. D. Gupta

  3. Department of Pedodontics and Preventive Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Sawangi (Meghe), Wardha, Maharashtra, 442107, India

    R. Yeluri

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  1. M. Agarwal
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  2. K. D. Gupta
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  3. R. Yeluri
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Agarwal, M., Gupta, K.D. & Yeluri, R. Comparative evaluation of shear bond strength and penetration of self-etch sealant with and without enamel deproteinization: an in vitro study. Eur Arch Paediatr Dent (2024). https://doi.org/10.1007/s40368-024-00907-5

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