THE USE OF E-SPEED FILM FOR ROOT-CANAL LENGTH DETERMINATION

被引：12

作者：

POWELLCULLINGFORD, AW ^{[1
]}

FORD, TRP ^{[1
]}

机构：

[1] UNITED MED & DENT SCH GUYS & ST THOMAS HOSP,GUYS HOSP,DEPT CONSERVAT DENT SURG,LONDON SE1 9RT,ENGLAND

来源：

INTERNATIONAL ENDODONTIC JOURNAL | 1993年 / 26卷 / 05期

关键词：

LENGTH DETERMINATION; RADIOGRAPHY; X-RAY FILM;

D O I：

10.1111/j.1365-2591.1993.tb00571.x

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This study compared the use of D-speed and E-speed dental X-ray film for assessing the working length of root canals. Root canal files of varying size (ISO 06, 08, 10 and 15) were placed in the root canals of a maxillary molar and a mandibular molar in a dried skull and mandible. Files were set at various lengths relative to the radiographic apex. The X-ray projections were kept constant. Exposure settings for the two film types that gave comparable radiographic density were selected. Films were developed manually under standardized conditions. A total of 48 films of each type were examined at various magnifications by four trained examiners for the estimation of distance between the file tip and radiographic apex. There were no differences between examiners in estimating working length. The effect of file size, root and magnification were also not significant. The differences between the film types were not significant (P > 0.05). It is concluded that clinicians should use E-speed film instead of D-speed film for root canal length measurement, because the exposure time was reduced by over 40% but the quality of the radiographic image was not significantly different.

引用

页码：268 / 272

页数：5

共 17 条

[1]

Diehl R., Gratt B.M., Gould R.G., Radiographic quality control measurements comparing D‐speed film, E‐speed film, and xero‐radiography, Oral Surgery, Oral Medicine and Oral Pathology, 61, pp. 635-640, (1986)

[2]

Dummer P.M.H., McGinn JH. Rees D.G., The position and topography of the apical canal constriction and apical foramen, International Erutodcntic Journal, 17, pp. 192-198, (1984)

[3]

Farman A.G., Hines V.G., Radiation safety and quality assurance in North American Dental Schools, Journal of Dental Education, 50, pp. 304-308, (1986)

[4]

Girsch WJ., Matteson S.R., McKee M.N., An evaluation of Kodak Ektaspeed periapical film for use in endodontics, Journal of Endodontics, 9, pp. 282-288, (1983)

[5]

Harty F.J., Endodontics in Clinical Practice, pp. 137-140, (1990)

[6]

Horner K., Hirschmamn P.N., Dose reduction in dental radiography, Journal of Dentistry, 18, pp. 171-184, (1990)

[7]

Horton P.S., Sippy F.H., Kohout F.J., Nelson J.F., Kienzle G.C., A clinical comparison of speed group D and E dental X‐ray films, Oral Surgery, Oral Medicine and Oral Pathology, 58, pp. 104-108, (1984)

[8]

Huang L., An experimental study of the principle of electronic root canal measurement, Journal of Endodontics, 13, pp. 60-64, (1987)

[9]

Kaffe I., Littner M.M., Kuspet M.E., Densitometric evaluation of intraoral X‐ray films: Ektaspeed versus Ultraspeed, Oral Surgery, Oral Medicine and Oral Pathology, 57, pp. 338-342, (1984)

[10]

Kleier D.J., Benner S.J., Averbach R.E., Two dental X‐ray films compared for rater reference using endodontic views, Oral Surgery, Oral Medicine and Oral Pathology, 59, pp. 201-205, (1985)

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