Before taking each photograph, the same measurement device used when radiographing the teeth was placed in the operative field as a reference instrument.
#RVG TROPHY WITH 26 PINOUT SERIES#
A series of occlusal intra-oral photographs were taken in an attempt to capture the cross-sectional views of the lesions at their deepest point. The selected teeth were isolated with rubber dam, and the lesion was then accessed by a suitable carbide bur and carefully dissected in a step-wise manner cervically through the caries tissue. A preoperative photograph was taken with a digital camera (Nikon D70 SLR, Nikon Corporation, Tokyo, Japan). A dental local anesthetic agent was used for all procedures. This study also provides information about sources of the patient's discomfort associated with these radiographs.Īll of the restorative treatments were performed by the primary investigator. The results of this study showed that both types of radiographic images tend to underestimate caries depth however, the RVG-6000 image was more accurate than the D-speed film. Size, sharp edges of the sensor or both comprised the source(s) of most of the discomfort caused by D-speed film (64%) and RVG-6000 sensor (79%). All of the lesions which were diagnosed radiographically to be deeper than 1 mm into dentin were cavitated. Both radiographs significantly underestimated the clinical depth ( p<0.0001), but the RVG-6000 images were significantly closer to the actual depth of the lesion than the D-speed film ( p=0.0031). The caries lesion extension from the dentino-enamel junction (DEJ) was measured in mm on each radiograph and the results were compared to the true clinical depth. A reference device was placed on the occlusal surface of the treatment or the adjacent tooth before taking radiographs and during the operative procedure. During the operative procedures, the cavitation status was also recorded. The true caries depth was validated clinically from intra-operative photographs that captured the cross-sectional views of the lesion at its deepest point.
Patients were asked to complete a one-page questionnaire regarding discomfort during the radiographic examination. Affected teeth were radiographed with D-speed film and the RVG-6000 size 2 sensor. Fifty-one Class II caries lesions were selected. The patient's discomfort related to placement of each radiographic packet was also evaluated. This study compared the newly introduced direct digital radiographic (DDR) system (RVG-6000) with conventional bitewing radiographs (D-speed film) to estimate the extension of Class II caries lesions.
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