Dutra Vinicius, Yang Jie, Devlin Hugh, Susin Cristiano
Division of Oral and Maxillofacial Radiology, Department of Oral and Maxillofacial Pathology, Medicine, and Surgery, Temple University School of Dentistry, USA.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005 Apr;99(4):479-84. doi: 10.1016/j.tripleo.2004.09.013.
To evaluate the antegonial index (AI) and the mental index (MI) in edentulous and dentate patients, in different age groups and between genders.
We evaluated 312 panoramic radiographs and grouped them into 4 10-year age groups. Gender, dentition status and age were recorded. The measurements were performed by 2 researchers independently.
The AI and MI were significantly smaller in older females, whereas they were greater for older males (P < 0.01). Edentulous individuals had a lower AI than dentate and partially dentate individuals (P < 0.01).
There is a continuous remodelling in the mandibular cortex with age and this is influenced by dental status and gender. The difficulty of measuring the AI in a reproducible manner, its interaction with dental status and low correlation with MI in younger patients should discourage its use in detecting patients at risk of osteoporosis.
评估无牙颌和有牙颌患者、不同年龄组以及不同性别之间的下颌角前切迹指数(AI)和颏孔指数(MI)。
我们评估了312张全景X线片,并将其分为4个10岁年龄组。记录性别、牙列状况和年龄。测量由2名研究人员独立进行。
老年女性的AI和MI明显较小,而老年男性的AI和MI较大(P < 0.01)。无牙颌个体的AI低于有牙颌和部分牙列缺损个体(P < 0.01)。
下颌骨皮质随年龄不断重塑,这受到牙齿状况和性别的影响。以可重复的方式测量AI存在困难,其与牙齿状况的相互作用以及与年轻患者MI的低相关性,不应鼓励将其用于检测骨质疏松症风险患者。