Jiménez-Hernández M, Chavarría-Bolaños D, Murillo-Gómez F, Vega-Baudrit J, Pozos-Guillén A, Lafuente-Marín D, Montero-Aguilar M

Language: English
References: 22
Page: 48-60
PDF size: 1059.84 Kb.

ABSTRACT

Using a bur multiple times to prepare dental structure may produce a smoother final surface on dentin than a new one. This superficial roughness may affect adhesion with resin-based materials by modifying the substrates’ characteristics. The aim of this study was to evaluate the effect of multiple uses of diamond burs on dentin’s superficial microroughness and bond strength with resin composite when using a self-etch adhesive. Diamond dental burs were used to simulate a preparation (dentin flat surface) on extracted third molars. Samples were distributed into groups according to burs’ number of previous uses as follows: 0, 1, 5 and 10. Scanning electron microscopy images at 70x, 350x, and 1000x were used to illustrate burs’ deformation. Each specimen’s dentin microroughness was measured three times to compare between experimental groups and the micro-shear bond strength test (n=15) was performed for the 0 and 10 uses groups using a universal adhesive in a self-etching mode. Diamond crystals wear and dislodgements were evident among groups where the burs were used more times. As the number of uses increased the mean microroughness of the dentin surface decreased with significant differences between the 0 and 10 uses groups. No statistical differences between experimental groups resulted from bond strength tests. When using a universal adhesive in a self-etching mode, the number of previous uses of a diamond bur seems to have no significant effect on dentin/resin composite bond strength.

REFERENCES

1. Salz U., Bock T. Testing adhesion of direct restoratives to dental hard tissue-a review. J Adh Dent. 2010; 12 (5):.343-71.

2. Maragakis G.M., Hahn P., Hellwig E. Chemomechanical caries removal: a comprehensive review of the literature. Int Dent J 2001; 51 (4): 291-99.

3. Sharma S., Shankar R., Srinivas K. An epidemiological study on the selection, usage and disposal of dental burs among the dental practioner’s. J Clin Diag Res 2014; 8 (1): 250-54.

4. Siegel S.C., Fraunhofer J.A. Irrigation rates and handpieces used in prosthodontic and operative dentistry: results of a survey of North American dental school teaching. J Prosth 2000; 9 (2): 82-86.

5. Siegel S.C., Von Fraunhofer J.A. Dental cutting: the historical development of diamond burs. J Am Dent Assoc 1998; 129 (6): 740-45.

6. ACE Panel Report. Reprocessing of rotatory cutting instruments. American Dental Association; 2019. URL: ‘https://www.ada.org/~/media/ADA/Science%20and%20Research/Files/ACE-Panel-Report_Reprocessing-Rotary-Cutting-Instruments_2019Aug14.pdf?la=en’. Accessed 04 April 2021.

7. Kaviani A., Ahmadzadeh A., Shahroie J., Ghasemi Z. Effects of diamond and carbide burs on dentin bond strengths of self-etch bonding systems. J Islam Dent Assoc Iran 2013; 25 (2): 57-61.

8. Koas K., Inoue .S, Nada T.T., Kawamoto Ch., Takahashi A., Nakaoki Y., Sano H. Effect of bur-cut dentin on bond strength using two all-in-one and one two-step adhesive systems. J Adh Dent 2004; 6 (2): 97-104.

9. Young-Gon L., So-Ra M., Young-Gon Ch. Effect of cutting instruments on the dentin bond strength of a self-etch adhesive. J Korean Acad Conserv Dent 2010; 35 (1): 13-9.

10. Semeraro S., Mezzanzanica D., Spreafico D., Gagliani M., Re D., Tanaka T. et.al. Effect of different bur grinding on the bond strength of self–etching adhesives. Oper Dent 2006; 31 (3): 317-23.

11. Breschi L., Maravic T., Cunha S.R., Comba A., Cadenaro M., Tjäderhane L. et.al. Dentin bonding systems: from dentin collagen structure to bond preservation and clinical applications. Dent Mat 2018; 34 (1): 78-96.

12. Galindo D.F., Ercoli C., Funkenbusch P.D., Greene T.D., Moss M.E., Lee H.J. et.al. Tooth preparation: a study on the effect of different variables and a comparison between conventional and channeled diamond burs. J Prosth 2004; 13 (1): 3-16.

13. Nakamura K., Katsuda Y., Ankyu S., Harada A., Tenkumo T., Kanno T. et.al. Cutting efficiency of diamond burs operated with electric high-speed dental handpiece on zirconia. Eur J Oral Sci 2015; 123 (5): 375-80.

14. Von Fraunhofer J.A., Smith T.A., Marshall K.R. The effect of multiple uses of disposable diamond burs on restoration leakage. J Am Dent Assoc 2005; 36 (1): 53-57.

15. McInnes P.M., Wendt Jr. S.L., Retief D.H., Weinberg R. Effect of dentin surface roughness on shear bond strength. Dent Mater 1990; 6 (3): 204-07.

16. Saikaew P., Senawongse P., Sano H., Harnirattisal C. Effect of smear layer and surface roughness on resin-dentin bond strength of self-etching adhesives. Dent Mater J 2018; 37 (6): 973-80.

17. Pashley D.H., Tay F.R., Breschi L., Tjäderhane L., Carvalho R.M., Carrilho M. et.al. A state of the art etch-and-rinse adhesives. Dent Mater 2011;27 (1): 1-16.

18. Van Meerbeek B., Yoshihara K., Yoshida Y., Mine A., De Munck J., Van Landuyt K.L. State of the art of self-etch adhesives. Dent Mater 2011; 27 (1): 17-28.

19. Sevgican, F., Inoue S., Koase K., Kawamoto C., Ikeda T., Sano H. Bond strength of simplified-step adhesives to enamel prepared with two different diamond burs. Austr Dent J 2004; 49 (3): 141-5.

20. Van Landuyt K.L., De Munk J., Mine A., Cardoso M.V., Peumans M., Van Meerbeek B. Filler debonding & subhybrid-layer failures in self-etch adhesives. J Dent Res 2010; 89 (10): 1045-50.

21. Bhagat T.V., Thombare R. A comparative evaluation of functional efficiency of diamond bur used with distilled water, distilled water modified by addition of mouthwash and lactated ringer solution as coolants-an in-vitro study. Inter J Dent Clin 2012; 4 (1): 6-9.

22. Lise D. P., Júnior S.M., Gondo R. Influence of reused dental burs on bond strength to dentin. J Res Dent 2014; 2 (3): 235-42.