Measures obtained from images acquired by a stereomicroscope and a desktop scanner

• Autor(a) principal: Larentis, Naiara Leites
• Data de Publicação: 2014
• Outros Autores: Silva, Ana Elisa da, Cunha, Fernanda, Fontanella, Vania
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista odonto ciência (Online)
• Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/11891
• topic: microscopy; dental photography; dental informatics.; microscopia; fotografia dentária; informática odontológica.

Objective: This study aimed to compare measures obtained from dental section images acquired by a stereomicroscope and a desktop scanner, and to determine whether there were differences between the two methods. Methods: Fifty extracted human teeth were mesiodistally sectioned. Each section was photographed by stereomicroscopy and digitized by scanning at 230 dpi resolution. The Photoshop software was used to obtain horizontal and vertical measures of each section from images acquired by each of the two methods, with randomized repeated measurement of 20% of the sample cases.Results: Initial and repeated measurements were correlated. Paired t test did not reveal any significant differences (a=5%) between them. Mean measures and standard deviations were: horizontal, stereomicroscope 8.89 mm±4.30 mm, scanner 8.89 mm±4.52 mm; vertical, stereomicroscope 4.42 mm±2.19 mm, scanner 4.43 mm±2.19 mm. Results of paired t test (a=5%) did not show any significant differences between the two methods either for horizontal (p=0.685) or vertical (p=0.299) measures.Conclusion: The desktop scanner can be used in the place of a stereomicroscope in the acquisition of images of tooth sections with the purpose to obtain horizontal and vertical measures.