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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/125757
Title: 
Human teeth versus bovine teeth: cutting effectiviness of diamond burs
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
1677-3217
Sponsorship: 
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Sponsorship Process Number: 
FAPESP: 2002/10781-5
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.
Issue Date: 
2010
Citation: 
Brazilian Journal of Oral Sciences, v. 9, n. 1, p. 39-42, 2010.
Time Duration: 
39-42
Keywords: 
  • Teeth
  • Dental enamel
  • Cattle
  • Efficiency
  • Diamond
Source: 
http://w2.fop.unicamp.br/brjorals/contents9_1.htm
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/125757
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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