This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Pitts, N.B. Articles by Renson, C.E. Search for Related Content PubMed PubMed Citation Articles by Pitts, N.B. Articles by Renson, C.E. Social Bookmarking                         What's this?

Reproducibility of Computer-aided Image-analysis-derived Estimates of the Depth and Area of Radiolucencies in Approximal Enamel

Department of Conservative Dentistry, Faculty of Dentistry, University of Hong Kong, Prince Philip Dental Hospital, Hospital Road, Hong Kong

C.E. Renson

Department of Conservative Dentistry, Faculty of Dentistry, University of Hong Kong, Prince Philip Dental Hospital, Hospital Road, Hong Kong

In vivo studies of caries progression from serial bite-wing radiographs require the reproducible detection and measurement of approximal radiolucencies in enamel; the aim of this study was to evaluate the reproducibility of a new computer-aided image analysis method. Three series of radiographs depicting natural caries lesions were employed: films of 11-12-year-old (Hounslow) schoolchildren, dental students from Hong Kong (HKDS), and extracted Hong Kong teeth (EXT). Each surface was "searched" three times, resulting in data from 450, 600, and 180 searches, respectively. Lesion detection was consistent for all but two of the 1230 searches. Average values for the standard error of the mean (SEM) of triple determinations of depth % were between 2.0 and 3.5%, while the mean SEM for area was from 0.03 to 0.04 mm². Average testlre-test correlations ranged from 0.963 to 0.871 for depth and from 0.963 to 0.884 for area, while average reliability coefficients ranged from 0.937 to 0.821 for depth and 0.963 to 0.886 for area. There was a significant difference (P<0.001) between the reproducibility of the two clinical series, with measurements of the Hounslow lesions being more consistent. When compared with the reproducibility of attempts to grade radiolucency size visually, the image analysis method appears to offer considerable advantages, in that consistent estimates of radiolucency size are now possible. This method may facilitate more sensitive assessments of the behavior of lesions over time than has hitherto been possible.

REFERENCES

• Depaola, P.F. and Alman, J. (1972): Assessment of the Reliability of Radiographic Diagnosis in a Clinical Caries Trial, J Dent Res 51:1431-1437.[Abstract/Free Full Text]
• Federation Dentaire Internationale (1983): Principal Requirements for Controlled Clinical Trials of Caries Preventive Agents and Procedures, Int Dent J 32:292-310.
• Galagan, D.J. and Vermillion, J. (1956): Diagnosis of Caries by Radiographic Interpretation, J Dent Res 35:33-38.[Free Full Text]
• Glass, R.L., Ed. (1982): The First International Conference on the Declining Prevalence of Dental Caries, J Dent Res 61 (Spec Iss):1301-1383.
• Granath, L.; Kahlmeter, A.; Matsson, L.; and Schroder, U. (1980): Progression of Proximal Enamel Caries in Early Teens Related to Caries Activity, Acta Odontol Scand 38:247-251.[CrossRef][Medline] [Order article via Infotrieve]
• Guilford, J.P. and Fruchter, B. (1973): Fundamental Statistics in Psychology and Education, 5th ed., New York: McGraw-Hill, pp. 270-271.
• Leijon, G. and Marken, K.-E. (1968): Roentgenological Diagnosis of Proximal Caries, Acta Odontol Scand 26:35-61.[CrossRef][Medline] [Order article via Infotrieve]
• Lundberg, M. (1965): The Bisector Projection or Bitewing Technique in the Radiologic Diagnosis of Proximal Primary Caries, Odontol Foren Tidskr 73:567-578.[Medline] [Order article via Infotrieve]
• Mileman, P.; Purdell-Lewis, D.; and Van Der Weele, L. (1983): Effect of Variation in Caries Diagnosis and Degree of Caries on Treatment Decisions by Dental Teachers using Bitewing Radiographs, Community Dent Oral Epidemiol 11:356-362.[CrossRef][Medline] [Order article via Infotrieve]
• Pitts, N.B. (1983a): Monitoring of Caries Progression in Permanent and Primary Posterior Approximal Enamel by Bitewing Radiography. A Review, Community Dent Oral Epidemiol 11:228-235.[CrossRef][Medline] [Order article via Infotrieve]
• Pitts, N.B. (1983b): The Use of Film Holding, Beam Collimating and Aiming Devices in Bitewing Radiography. A Suggested Design for Routine and Research Use, Dentomaxillofac Radiol 12:77-82.
• Pitts, N.B. (1984a): Detection and Measurement of Approximal Radiolucencies by Computer-Aided Image Analysis of Bitewing Radiographs, Oral Surg 58:358-366.[CrossRef][Medline] [Order article via Infotrieve]
• Pitts, N.B. (1984b): Systems for Grading Approximal Carious Lesions and Overlaps Diagnosed from Bitewing Radiographs. Proposals for Future Standardization, Community Dent Oral Epidemiol 12:114-122.[CrossRef][Medline] [Order article via Infotrieve]
• Pitts, N.B. and Renson, C.E. (1985): Further Development of an Image Analysis Method of Quantifying Approximal Enamel Radiolucencies Depicted Upon Bitewing Radiographs, J Dent Res 64:680 (Abstract No. 156).
• Powell, K.R.; Barnard, P.D.; and Craig, G.G. (1981): Effect of Stannous Fluoride Treatments on the Progression of Initial Lesions in Approximal Surfaces of Permanent Posterior Teeth, J Dent Res 60:1648-1654.[Abstract/Free Full Text]
• Renson, C.E.; Crielaers, P.J.A.; Ibikunle, S.A.J.; Pinto, V.G.; Ross, C.B.; Sardo Infirri, J.; Takazoe, I.,; and Tala, H. (1985): Changing Patterns of Oral Health and Implications for Oral Health Manpower, Int Dent J (in press).
• Richardson, A.S.; Hole, L.; and Williams, J.F. (1971): The Role of Radiographs in Clinical Studies of Caries-Inhibitory Agents, J Public Health Dent 31:158-165.[CrossRef][Medline] [Order article via Infotrieve]
• Rugg-Gunn, A.J. and Holloway, P.J. (1974): Methods of Measuring the Reliability of Caries Prevalence and Incremental Data, Community Dent Oral Epidemiol 2:287-294.[CrossRef][Medline] [Order article via Infotrieve]
• Shaw, L. and Murray, J.J. (1975): Inter-examiner and Intra-examiner Reproducibility in Clinical and Radiographic Diagnosis, Int Dent J 25:280-288.[Medline] [Order article via Infotrieve]
• Slack, G.L.; Bulman, J.S.; and Osborn, J.F. (1971): Clinical Testing of Fluoride and Non-Fluoride Containing Dentifrices in Hounslow School Children, Br Dent J 130:154-158.[CrossRef][Medline] [Order article via Infotrieve]

Journal of Dental Research, Vol. 64, No. 10, 1221-1224 (1985)
DOI: 10.1177/00220345850640100901


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				D. C. GAKENHEIMER The efficacy of a computerized caries detector in intraoral digital radiography J Am Dent Assoc, July 1, 2002; 133(7): 883 - 890. [Abstract] [Full Text] [PDF]

				J.J. Ten Bosch and B. Angmar-Mansson Invited Review: A Review of Quantitative Methods for Studies of Mineral Content of Intra-oral Incipient Caries Lesions Journal of Dental Research, January 1, 1991; 70(1): 2 - 14. [Abstract] [PDF]

				N.G. Jablonski, L.E. Quackenbush, S.L. Lee, A. Dimmer, J.J.I. McKenna, D.F. McDonald, C.E. Renson, and R.W. Fearnhead Establishment of a Large Collection of Extracted Teeth for Research Journal of Dental Research, February 1, 1986; 65(2): 123 - 124. [Abstract] [PDF]

This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Pitts, N.B. Articles by Renson, C.E. Search for Related Content PubMed PubMed Citation Articles by Pitts, N.B. Articles by Renson, C.E. Social Bookmarking                         What's this?