COMPARATIVE EVALUATION OF PUSHOUT BOND STRENGTH OF FIBER POST IN DIFFERENT REGIONS OF ROOT DENTIN USING SELF ADHESIVE AND SELF ETCH RESIN CEMENTS – AN IN VITRO STUDY

Authors

  • Mallikarjunan D.Y Assistant Professor, Department of Conservative dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission’s Research Foundation (Deemed to be university), Salem, Tamilnadu, India, Author
  • Assmee Mohammed Noon Assistant Professor, Department of Conservative dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission’s Research Foundation (Deemed to be university), Salem, Tamilnadu, India Author
  • Vanita D. Revankar Associate Professor, Department of Conservative dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission’s Research Foundation (Deemed to be university), Salem, Tamilnadu, India Author
  • Arun Senthamilselvan Assistant Professor, Department of Conservative dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission’s Research Foundation (Deemed to be university), Salem, Tamilnadu, India Author
  • Aarthi Ganapathy Assistant Professor, Department of Conservative dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission’s Research Foundation (Deemed to be university), Salem, Tamilnadu, India Author
  • Kaarunya Ravikumar Assistant Professor, Department of Conservative dentistry and Endodontics, Vinayaka Mission's Sankarachariyar Dental College, Vinayaka Mission’s Research Foundation (Deemed to be university), Salem, Tamilnadu, India Author

DOI:

https://doi.org/10.61841/t3wzvx25

Keywords:

Bond strength, Self-adhesive

Abstract

The present study was to compare the push-out bond strength of fibre posts to root dentin using different techniques of self -etch and self-adhesive resin cements in various regions of root canal dentin. 30 single rooted mandibular premolars extracted for orthodontic reasons with similar root dimensions were included in this study. The cleaning & shaping of root canals were done using crown-down technique in X Smart endomotor system. After 7 days of storage in 100% ambient humidity, the root canals were prepared using #2 preparation drill of fiber post system. #2 preparation drill of the post system was used and post spaces were prepared leaving 4mm of obturated point in the canal and teeth were divided into two groups of 15 each based on different techniques of cementation. In group 1 posts were luted with self adhesive cement and self etch resin cement in group 2. The test was performed in a universal testing machine at a speed of 1 mm/min. The universal testing machine induced a load in the apical to coronal direction of the post without applying any pressure to the cement or dentin. The bond strength in MPa was obtained with the formula- Bond strength (MPa) = Debonding force (N)/Total bonding area (S) (mm2). The real thickness of the slices (h) and the post diameter in coronal (r1)

and apical (r2) were measured and the bonding area (S) was calculated by S = π (r1+ r2) √ (h2+(r1-r2)2 in mm2 for each slice. There is a significant difference in RELYX U2OO (MPa) among the different region (P<0.05). The apical region has higher mean value than the other region. There is a significant difference in MULTILINK (MPa) among the different region (P<0.05). The apical region has higher mean value than the other region and coronal region has the low mean value. Cementation of fibre post with self-adhesive cement produce high push out bond strength, especially in the apical region. Further clinical studies required to determine the mode of failure of resin cements.

 

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References

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Published

30.09.2020

Issue

Vol. 24 No. 7 (2020): 24 (7) 2020

Section

Articles

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How to Cite

D.Y, M., Noon, A. M., Revankar, V. D., Senthamilselvan, A., Ganapathy, A., & Ravikumar, K. (2020). COMPARATIVE EVALUATION OF PUSHOUT BOND STRENGTH OF FIBER POST IN DIFFERENT REGIONS OF ROOT DENTIN USING SELF ADHESIVE AND SELF ETCH RESIN CEMENTS – AN IN VITRO STUDY. International Journal of Psychosocial Rehabilitation, 24(7), 9955-9962. https://doi.org/10.61841/t3wzvx25