Comparisons of the Computed Tomographic Scan and Panoramic Radiography Before Mandibular Third Molar Extraction Surgery

Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
Qian LuoYong Zhang

Abstract

BACKGROUND Mandibular third molar extraction surgery has a postoperative complication of hypoesthesia of the lower lip and/or chin. The objective of the study was to determine if preoperative radiographic examination by panoramic radiography and computed tomography (CT) scan can predict postoperative complications of mandibular third molar extraction surgery. MATERIAL AND METHODS In total, 479 patients who had mandibular third molar extraction surgery were included in this cross-sectional study. Patients had panoramic radiographies and CT scans to determine the relationship of the tooth, the canal, and the buccolingual position. Inferior alveolar nerve sensory impairment was detected using a two-point discrimination method. Wilcoxon test and Tukey's test were used to compare diagnostic modalities at a 99% confidence level. RESULTS Inferior alveolar nerve was more successfully quantified by CT scan compared to panoramic radiography (p<0.0001, q=8.062). Orthopantomography was better than the CT scan in detecting a close relationship of the tooth and the canal (p<0.0001, q=25.609), but the CT scan was better in detecting the buccolingual position of the teeth (p<0.0001, q=36.757). The age of patients (p<0.0001, q=36.757), postoper...Continue Reading

Methods Mentioned

BETA
surgical resection

Software Mentioned

Software CT DST DLS
App
Instat

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