ORIGINAL ARTICLE

 

Human teeth versus bovine teeth: cutting effectiveness of diamond burs

 

 

Laiza Maria Grassi Fais^I; Caroline Canhizares Marcelo^I; Regina Helena Barbosa Tavares da Silva^II; Dalton Geraldo Guaglianoni^III; Lígia Antunes Pereira Pinelli^II

^IMSc, Department of Dental Materials and Prosthodontics, Araraquara Dental School; São Paulo State University, Brazil
^IIPhD, Associate Professor, Department of Dental Materials and Prosthodontics, Araraquara Dental School; São Paulo State University, Brazil
^IIIMSc, Professor of Statistics, Mathematics and Statistics Department, Araraquara Science and Language School, São Paulo State University, Brazil

Correspondence

 

 

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ABSTRACT

AIM: In this study, a mass-loss method was used to verify whether bovine enamel has the same wear pattern as human enamel in cutting efficiency tests of diamond burs.
METHODS: Seventy-two teeth were used: 36 human molars (HT) and 36 bovine mandibular central incisors (BT). The enamel of the teeth was cut using diamond bur #1092 attached to a high-speed handpiece under controlled pressure (50-80 g). Each bur (n=12) cut for a total of 72 min, divided into 6 periods of 12 min each (12-min, 24-min, 36-min, 48-min, 60-min, and 72-min). The amount of enamel removed was determined by the difference between pre- and post-cut tooth masses.
RESULTS: The mean amounts (g) of enamel removed were: HT- 12-min=0.11; 24-min=0.12; 36-min=0.11; 48-min=0.11; 60-min=0.10; 72-min=0.12; BT- 12-min=0.12; 24-min=0.15; 36-min=0.15; 48- min=0.13; 60-min=0.16; 72-min=0.14. Data were analyzed using ANOVA followed by Tukey's test, and the results showed statistically significant differences between human and bovine teeth (p<0.001) and among the cutting periods (p<0.001).
CONCLUSIONS: It was concluded that the cutting efficiency of the burs was different between the tested substrates, and that bovine enamel underwent greater mass loss than did human enamel.

Keywords: teeth; dental enamel; cattle; efficiency, diamond.

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References

1. Jackson MJ, Sein H, Ahmed W. Diamond coated dental bur machining of natural and synthetic dental materials. J Mater Sci Mater Med. 2004; 15: 1323-31.         [ Links ]

2. Gureckis KM, Burgess JO, Schwartz RS. Cutting effectiveness of diamond instruments subjected to cyclic sterilization methods. J Prosthet Dent. 1991; 66: 721-6.         [ Links ]

3. Rizzo R. [The effects of sterilization with microwaves on diamond burs]. Minerva Stomatol. 1993; 42: 93-6.         [ Links ]

4. Barkmeier WW, Erickson RL. Shear bond strength of composite to enamel and dentin using Scotchbond Multi-Purpose. Am J Dent. 1994; 7: 175-9.         [ Links ]

5. Reeves GW, Fitchie JG, Hembree JH, Jr., Puckett AD. Microleakage of new dentin bonding systems using human and bovine teeth. Oper Dent. 1995; 20: 230-5.         [ Links ]

6. Coradazzi JL, Silva CM, Pereira JC, CE F. Shear bond strength of an adhesive system in human, bovine and swinish teeth. Rev Fac Odontol Bauru. 1998; 6: 29-33.         [ Links ]

7. Lopes MB, Sinhoreti MAC, Correr Sobrinho L, Consani S. Comparative study of the dental substrate used in shear bond strength tests. Pesq Odontol Bras. 2003; 17: 171-5.         [ Links ]

8. Krifka S, Borzsonyi A, Koch A, Hiller KA, Schmalz G, Friedl KH. Bond strength of adhesive systems to dentin and enamel—human vs. bovine primary teeth in vitro. Dent Mater. 2008; 24: 888-94.         [ Links ]

9. Dutra-Correa M, Anauate-Netto C, Arana-Chavez VE. Density and diameter of dentinal tubules in etched and non-etched bovine dentine examined by scanning electron microscopy. Arch Oral Biol. 2007; 52: 850-5.         [ Links ]

10. Camargo MA, Marques MM, de Cara AA. Morphological analysis of human and bovine dentine by scanning electron microscope investigation. Arch Oral Biol. 2008; 53: 105-8.         [ Links ]

11. Schilke R, Bauss O, Lisson JA, Schuckar M, Geurtsen W. Bovine dentin as a substitute for human dentin in shear bond strength measurements. AM J Dent. 1999; 12: 92-6.         [ Links ]

12. Fonseca RB, Haiter-Neto F, Fernandes-Neto AJ, Barbosa GA, Soares CJ. Radiodensity of enamel and dentin of human, bovine and swine teeth. Arch Oral Biol. 2004; 49: 919-22.         [ Links ]

13. Attin T, Wegehaupt F, Gries D, Wiegand A. The potential of deciduous and permanent bovine enamel as substitute for deciduous and permanent human enamel: Erosion-abrasion experiments. J Dent. 2007; 35: 773-7.         [ Links ]

14. Rios D, Honorio HM, Magalhaes AC, Silva SM, Delbem AC, Machado MA, et al. Scanning electron microscopic study of the in situ effect of salivary stimulation on erosion and abrasion in human and bovine enamel. Braz Oral Res. 2008; 22: 132-8.         [ Links ]

15. Wegehaupt F, Gries D, Wiegand A, Attin T. Is bovine dentine an appropriate substitute for human dentine in erosion/abrasion tests? J Oral Rehabil. 2008; 35: 390-4.         [ Links ]

16. Attin T, Koidl U, Buchalla W, Schaller HG, Kielbassa AM, Hellwig E. Correlation of microhardness and wear in differently eroded bovine dental enamel. Arch Oral Biol. 1997; 42: 243-50.         [ Links ]

17. Nakamichi I, Iwaku M, Fusayama T. Bovine teeth as possible substitutes in the adhesion test. J Dent Res. 1983; 62: 1076-81.         [ Links ]

18. Rueggeberg FA. Substrate for adhesion testing to tooth structure – review of the literature. Dent Mater. 1991; 7: 2-10.         [ Links ]

19. Jameson MW, Tidmarsh BG, Hood JA. Effect of storage media on subsequent water loss and regain by human and bovine dentine and on mechanical properties of human dentine in vitro. Arch Oral Biol. 1994; 39: 759-67.         [ Links ]

20. Oesterle LJ, Shellhart WC, Belanger GK. The use of bovine enamel in bonding studies. Am J Orthod Dentofacial Orthop. 1998; 114: 514-9.         [ Links ]

21. Taira M, Wakasa K, Yamaki M, Matsui A. Effects of the diamond grit sizes of the commercial dental diamond points on the weight-load cutting of bovine enamel and glass-ceramic Typodont teeth. Dent Mater J. 1990; 9: 173-80.         [ Links ]

22. Tanaka N, Taira M, Wakasa K, Shintani H, Yamaki M. Cutting effectiveness and wear of carbide burs on eight machinable ceramics and bovine dentin. Dent Mater. 1991; 7: 247-53.         [ Links ]

23. Miyawaki H, Taira M, Wakasa K, Yamaki M. Dental high-speed cutting of four cast alloys. J Oral Rehabil. 1993; 20: 653-61.         [ Links ]

24. Ohmoto K, Taira M, Shintani H, Yamaki M. Studies on dental high-speed cutting with carbide burs used on bovine dentin. J Prosthet Dent. 1994; 71: 319-23.         [ Links ]

25. Watanabe I, Ohkubo C, Ford JP, Atsuta M, Okabe T. Cutting efficiency of air-turbine burs on cast titanium and dental casting alloys. Dent Mater. 2000; 16: 420-5.         [ Links ]

26. Pinelli LAP, Faria IR, Marcelo CC, Pita APG, Silva RHBT, DG G. Estudo fotomicrográfico do desgaste de pontas diamantadas em diferentes substratos. Pós-Grad Rev. 2005; 7: 60-6.         [ Links ]

27. Fontana UF, Dinelli W, Gabrielli F, Fontana RHBTS, LMDF A. Estudo comparativo da eficiência de instrumentos rotatórios de carbeto de tungstênio e diamante. Análise gravimétrica. Efeito de tempo e procedência do instrumento. Rev Assoc Paul Cir Dent. 1985; 39.         [ Links ]

28. Siegel SC, von Fraunhofer JA. Assessing the cutting efficiency of dental diamond burs. J Am Dent Assoc. 1996; 127: 763-72.         [ Links ]

29. Siegel SC, von Fraunhofer JA. Dental cutting with diamond burs: heavyhanded or light-touch? J Prosthodont. 1999; 8: 3-9.         [ Links ]

30. Siegel SC, von Fraunhofer JA. Cutting efficiency of three diamond bur grit sizes. J Am Dent Assoc. 2000; 131: 1706-10.         [ Links ]

31. Reeh ES, Douglas WH, Levine MJ. Lubrication of human and bovine enamel compared in an artificial mouth. Arch Oral Biol. 1995; 40: 1063-72.         [ Links ]

32. Gwinnett AJ. Structure and composition of enamel. Oper Dent. 1992; Suppl 5: 10-7.         [ Links ]

33. Braly A, Darnell LA, Mann AB, Teaford MF, Weihs TP. The effect of prism orientation on the indentation testing of human molar enamel. Arch Oral Biol. 2007; 52: 856-60.         [ Links ]

 

 

Correspondence to:
Lígia Antunes Pereira Pinelli
Faculdade de Odontologia de Araraquara - UNESP
Rua Humaitá, 1680- 14801-903
Araraquara-SP, Brasil
Phone: +55 16 3301-6413 / Fax: +55 16 3301-6406
E-mail: ligia@foar.unesp.br

Received for publication: November 26, 2009
Accepted: March 8, 2010