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Human teeth versus bovine teeth: cutting effectiveness of diamond burs
Fais, Laiza Maria Grassi; Marcelo, Caroline Canhizares; Silva, Regina Helena Barbosa Tavares da; Guaglianoni, Dalton Geraldo.
Afiliación
  • Fais, Laiza Maria Grassi; São Paulo State University. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Marcelo, Caroline Canhizares; São Paulo State University. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Silva, Regina Helena Barbosa Tavares da; São Paulo State University. Araraquara Dental School. Department of Dental Materials and Prosthodontics. Araraquara. BR
  • Guaglianoni, Dalton Geraldo; São Paulo State University. Araraquara Science and Language School. Mathematics and Statistics Departament. Araraquara. BR
Braz. j. oral sci ; 9(1): 39-42, Jan.-Mar. 2010. ilus, tab, graf
Article en En | LILACS, BBO | ID: lil-578045
Biblioteca responsable: BR28.1
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 of12 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.
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Texto completo: 1 Índice: LILACS Asunto principal: Técnica Odontológica de Alta Velocidad / Equipo Dental de Alta Velocidad / Diamante / Preparación de la Cavidad Dental / Esmalte Dental Límite: Animals / Humans Idioma: En Revista: Braz. j. oral sci Asunto de la revista: ODONTOLOGIA Año: 2010 Tipo del documento: Article
Texto completo: 1 Índice: LILACS Asunto principal: Técnica Odontológica de Alta Velocidad / Equipo Dental de Alta Velocidad / Diamante / Preparación de la Cavidad Dental / Esmalte Dental Límite: Animals / Humans Idioma: En Revista: Braz. j. oral sci Asunto de la revista: ODONTOLOGIA Año: 2010 Tipo del documento: Article