Efeitos dos parâmetros de digitalização na qualidade da imagem radiográfica periapical com relação a reparos anatômicos
| Autor: | Gonçalves, Andréa [UNESP], Nícoli, Giovanni Antonio [UNESP], Zamperini, Camila Andrade [UNESP], Hebling, Josimeri [UNESP], Gonçalves, Marcelo [UNESP] |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Currículo Lattes Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1807-2577 |
| Popis: | Made available in DSpace on 2015-08-06T16:12:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2011. Added 1 bitstream(s) on 2015-08-06T16:44:03Z : No. of bitstreams: 1 ISSN1807-2577-2011-40-01-25-29.pdf: 492903 bytes, checksum: 6b642a66d427bba41ebcf683443c1056 (MD5) Made available in DSpace on 2015-08-06T16:12:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2011. Added 1 bitstream(s) on 2015-08-06T16:44:03Z : No. of bitstreams: 1 ISSN1807-2577-2011-40-01-25-29.pdf: 492903 bytes, checksum: 6b642a66d427bba41ebcf683443c1056 (MD5) Made available in DSpace on 2015-08-06T16:12:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2011. Added 1 bitstream(s) on 2015-08-06T16:44:03Z : No. of bitstreams: 1 ISSN1807-2577-2011-40-01-25-29.pdf: 492903 bytes, checksum: 6b642a66d427bba41ebcf683443c1056 (MD5) The aim of this study was to evaluate the influence of digitization parameters on periapical radiographic image quality, with regard to anatomic landmarks. Digitized images (n = 160) were obtained using a flatbed scanner with resolutions of 300, 600 and 2400 dpi. The radiographs of 2400 dpi were decreased to 300 and 600 dpi before storage. Digitizations were performed with and without black masking using 8-bit and 16-bit grayscale and saved in TIFF format. Four anatomic landmarks were classified by two observers (very good, good, moderate, regular, poor), in two random sessions. Intraobserver and interobserver agreements were evaluated by Kappa statistics. Inter and intraobserver agreements ranged according to the anatomic landmarks and resolution used. The results obtained demonstrated that the cement enamel junction was the anatomic landmark that presented the poorest concordance. The use of black masking provided better results in the digitized image. The use of a mask to cover radiographs during digitization is necessary. Therefore, the concordance ranged from regular to moderate for the intraobserver evaluation and concordance ranged from regular to poor for interobserver evaluation. Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Clínica Infantil, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680, Centro, CEP 14801-903, SP, Brasil Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Clínica Infantil, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá, 1680, Centro, CEP 14801-903, SP, Brasil department of Oral diagnosis and Surgery departament of dental Materials and Prosthodontics department of Orthodontics and Pediatric dentistry |
| Databáze: | OpenAIRE |
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