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本文研究的目的是通过观察大量的临床诊断为青少年牙周炎(JP)的年轻成人的口腔全景X线照片,阐明JP病人骨缺失的X线类型。材料和方法 49380名海军新兵在诊所进行常规的牙病检查,其中证实有JP的病人被进一步作口腔全景和(牙合)翼X线片检查以评价其每一个牙齿的近远中面的骨缺失情况。在这些病例中,第一恒磨牙和/或切牙上的骨缺失比其它牙齿上的骨缺失更大一些的病例被归类为JP。作者将这些JP病例再分为Ⅰ型:骨的破坏在第一磨牙和/或切牙甚至外加两个牙齿;Ⅱ型:损害第一磨牙和/或切牙以及另
The purpose of this study was to elucidate the X-ray pattern of bone loss in JP patients by observing a large number of panoramic radiographs of young adults with clinically diagnosed juvenile periodontitis (JP). Materials and Methods 49,380 marines recruited routine dental examinations at the clinic where it was confirmed that JP patients were further examined by oral panoramic and occlusal radiographs to evaluate the mesial and distal bone of each of their teeth Missing situation. In these cases, cases of bone loss on the first permanent molar and / or incisors larger than those on other teeth were classified as JP. The authors further subdivided these JP cases into type I: destruction of the bone in the first molars and / or incisors plus even two teeth; type II: damage to the first molars and / or incisors and /