curvature of root both mesial-distal and buccal–lingual curvatures.6-9 From an intraoral periapical view radiograph, the following radicular findings should be assessed: 4, 10, 11 Figure 1 Radiographic examination of the periapical region is important when evaluating periapical status and for the success and failure of root canal treatment. 4 Wuehrmann described an organized method of interpreting an intraoral periapical radiograph, 5 which involves reviewing one structure at a time. Radiograph images have all the elusive qualities of a shadow so normal anatomical structures in a radiograph must be known thoroughly before interpreting the abnormalities. 2, 3 A clinician must be trained to identify normal anatomical landmarks and their variations as well as variations owing to pathology in a radiograph. Modern endodontic diagnosis relies heavily on radiographic examination and provides the most valuable information compared with other diagnostic tests. 1 Success of root canal treatment depends on a number of factors, in particular the diagnosis of the pulp and periapical conditions, root canal anatomy, canal preparation and obturation. Using a paired t-test, there was significant variation in answers between the first set and second set of questionnaires.Ĭonclusion: It is concluded from this study that general dental practitioners are able to detect radiographic changes when they are extensive but they miss periodontal ligament width and lamina dura changes.Įndodontics is one of the few branches in dentistry in which both diagnosis and treatment depend largely upon radiographs. More than 80% of dentists missed extra roots and root curvature buccally while no dentists were able to interpret the periodontal ligament width changes, lamina dura and canal variation (C-shape). In the second set of questionnaires, more than 90% missed grade 1 or 2 periapical changes (according to periapical index scoring), resorption and canal calcification. Less than 50% said they would interpret canal morphology, open apex, resorption, fracture, number of roots and lamina dura. Results: In the first set of questionnaires, more than 50% of dentists said they would interpret periapical changes, calcification, root curvature and the number of root canals. The first set asked them to fill out the findings they would elucidate in a diagnostic radiograph while the second set consisted of 30 randomly selected intraoral radiographs to interpret. Methods: 20 general dental practitioners were selected and given 2 sets of questionnaires. Objectives: The aim of this study was to evaluate which radicular radiographic features general dentists want to interpret, determine which of the radicular radiographic features general dentists interpret and which ones they miss in a diagnostic radiograph and correlate how accurately general dentists are able to interpret radiographic features.
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