Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
Vol. 8, No. 2, 2009, pp. 101-104
Bioline Code: os09021
Full paper language: English
Document type: Research Article
Document available free of charge
Brazilian Journal of Oral Sciences, Vol. 8, No. 2, 2009, pp. 101-104
© Copyright 2009 - Piracicaba Dental School - UNICAMP São Paulo - Brazil
Digital versus conventional radiography for determination of primary incisor length|
Sanabe, Mariane Emi; Basso, Maria Daniela; Gonçalves, Marcela Almeida; Cordeiro, Rita de Cássia Loiola & Santos-Pinto, Lourdes
This in vitro study evaluated the accuracy of primary incisor lengths determined by digital and conventional
radiography compared to the actual tooth length.
Twenty extracted primary maxillary incisors
were mounted in acrylic blocks. Tooth length was estimated by using a straight-line measurement provided
by the distance measurement tool of a digital dental imaging system (Computed Dental Radiography, Schick
Technologies Inc.) and conventional E-speed film radiographs by using a digital caliper. Two operators familiar
with both radiographic methods performed the estimates. The estimated tooth lengths were compared to
the actual tooth lengths measured with the digital caliper. Data were statistically analyzed by Dahlberg’s equation,
paired t test, Pearson’s correlation coefficient and ANOVA at 5% significance level.
no statistically significant differences (p = 0.85) between tooth length estimated on digital and conventional
radiographs. Admitting as clinically acceptable a 0.5-mm discrepancy between the actual tooth lengths and
the radiographically estimated lengths, 60% of the radiographic measurements were considered as accurate.
When the acceptable difference range was 1.0 mm, the accuracy of the radiographic measurements increased
Digital and conventional radiography provided similar tooth length measurements and
were equivalent to the actual tooth lengths.
dental radiography, dental digital radiography, primary tooth, odontometry.
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