| 1055 Panoramic and Intraoral Radiography for Assessment of Alveolar Bone Level | ||
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M.E. AICHELMANN-REIDY1, M. BAZAN1, and J.C. GUNSOLLEY2, 1University of Maryland, Baltimore, USA, 2University of Maryland, Riva, USA Objectives: The primary purpose of this study was to compare radiographic measurements of crestal alveolar bone loss between panoramic, periapical and bitewing radiographs. A secondary purpose was to determine the influence of each film type for a whole mouth recording system versus a partial-mouth recording system for estimation of alveolar bone loss. Our final objective was to determine an appropriate methodology for an anticipated radiographic survey of a high-risk population in which subjects have either panoramic or full mouth series radiographs, but not both. Methods: 50 subjects with both a full-mouth series and a panoramic radiograph were evaluated. The distance, in millimeters, from the cemento-enamel junction to the alveolar bone crest of the interproximal surfaces of all teeth, excluding third molars, were recorded from scanned electronic images. One examiner performed all radiographic measurements. Comparison of the means by film type was computed by Spearman's Rho correlation coefficient. Results: 49 of 50 sets of radiographs were measurable. The periapical and bitewing radiographs were combined for the full-mouth series evaluation. There was a high correlation between whole mouth full-mouth series and panoramic scores (r = 0.89). A weaker correlation occurred when a partial recording system (Ramfjord teeth and contralateral quadrants) was implemented. The correlation ranged from r = 0.75 to 0.85. Conclusions: The radiographic measurement of alveolar bone loss between a full-mouth series and a panoramic radiograph was consistent. Partial-mouth scores were less reliable for the measurement of crestal alveolar bone loss when compared to full mouth scores for both types of radiographs. The correlation between the two types of radiographs was adequate for consideration of combining data from subjects with either film type. However, partial mouth score systems were inadequate for this combination. Supported, in part, by NIH DE07309-06 | ||
| Seq #112 - Diagnostics: Local and Systemic Factors I 10:15 AM-11:30 AM, Thursday, 11 March 2004 Hawaii Convention Center Exhibit Hall 1-2 | ||
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