Human teeth versus bovine teeth: cutting effectiveness of diamond burs
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 Tukeys 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.Palabras clave
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Índice:
LILACS
Asunto principal:
Técnica Odontológica de Alta Velocidad
/
Equipo Dental de Alta Velocidad
/
Diamante
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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