Munhoz Luciana, Gil Choi Isabela Goulart, Miura Daniel Key, Watanabe Plauto Christopher Aranha, Arita Emiko Saito
Department of Stomatology, School of Dentistry, University of São Paulo, Brazil.
Department of Stomatology, Public Oral Health, and Forensic Dentistry. Ribeirão Preto Dental School -, Brazil.
Indian J Dent Res. 2020 May-Jun;31(3):457-464. doi: 10.4103/ijdr.IJDR_440_18.
Mandibular cortical index has proven to be inversely correlated to bone densitometry; however, trabecular bone pattern has not been widely studied. Thus, the main objectives of this study were: (1) to analyze the correlations between three different sites of peripheral dual-energy X-ray absorptiometry with the mandibular cortical index and the trabecular bone pattern classification; (2) to assess the correlation between the mandibular cortical index and the trabecular bone pattern; (3) to evaluate the diagnostic accuracy of the mandibular cortical index and the trabecular bone pattern using panoramic radiographs in a sample of Brazilian men. Additionally, peripheral dual-energy X-ray absorptiometry findings in men were described.
There are about 44 men who had previously undergone panoramic radiography and bone densitometry were evaluated. Mandibular cortical index and trabecular bone pattern classifications were performed. The median T-scores of the men were analyzed. Spearman's test was performed to assess correlations.
An inverse correlation was found between mandibular cortical index and proximal bone densitometry site. No correlation was found between mandibular cortical index and trabecular bone pattern or between peripheral densitometry and trabecular bone pattern. Greater accuracy was observed in mandibular cortical index when compared to trabecular bone pattern. Mandibular cortical index evaluations by panoramic radiographs are a useful screening tool for low bone mineral density, but trabecular bone pattern cannot be applied to screen patients for osteoporosis risk. Mandibular cortical index has an inverse correlation with proximal sites of forearm densitometry.
下颌骨皮质指数已被证明与骨密度测定呈负相关；然而，小梁骨模式尚未得到广泛研究。因此，本研究的主要目的是：（1）分析外周双能X线吸收法三个不同部位与下颌骨皮质指数和小梁骨模式分类之间的相关性；（2）评估下颌骨皮质指数与小梁骨模式之间的相关性；（3）在一组巴西男性样本中，使用全景X线片评估下颌骨皮质指数和小梁骨模式的诊断准确性。此外，还描述了男性外周双能X线吸收法的结果。
对约44名先前接受过全景X线摄影和骨密度测定的男性进行评估。进行下颌骨皮质指数和小梁骨模式分类。分析男性的T评分中位数。采用Spearman检验评估相关性。
下颌骨皮质指数与近端骨密度测定部位呈负相关。下颌骨皮质指数与小梁骨模式之间或外周骨密度测定与小梁骨模式之间均未发现相关性。与小梁骨模式相比，下颌骨皮质指数的准确性更高。通过全景X线片评估下颌骨皮质指数是一种用于筛查低骨矿物质密度的有用工具，但小梁骨模式不能用于筛查骨质疏松症风险患者。下颌骨皮质指数与前臂骨密度测定的近端部位呈负相关。
