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ISSN 2395-9215 (Print)
Órgano Oficial de Difusión de la Facultad de Odontología de la UNAM

2014, Number 1

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Rev Mex Ortodon 2014; 2 (1)

Slot tolerance from three different commercial brands of brackets

Martínez PLE, Ruíz DR, Ruiz BG, Padilla OS

Language: Spanish
References: 10
Page: 38-41
PDF size: 242.34 Kb.


ABSTRACT

Objective: The purpose of this study was to determine the quality of the size of 0.018” x 0.025” slots in brackets of three trading companies (3M, GAC and ORMCO). Methods: 120 first premolar stainless steel brackets of three trading houses were analyzed forming three groups of 40 brackets. Each bracket was observed under a Profile Projector Microscope. Three measurements were obtained for each slot: depth, internal and external height. The data were tabulated and statistically analyzed by the ANOVA test and the Student’s t test. Results:The results showed that there were statistically significant differences in depth and internal and external height between the bracket’s slot of 3 different companies (p ‹ 0.05). The companies 3M and GAC fulfilled the manufacturer’s specifications (p ‹ 0.05). In terms of internal height, GAC complied with the manufacturer’s specifications (p ‹ 0.05). In relation to external height, ORMCO complied with what is specified by the manufacturer (p ‹ 0.05).


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