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预测下颌第三磨牙阻生,至今没有客观标准。利用全景片估计下颌第三磨牙萌出间隙是目前较精确的评测方法之一。本文利用全景片对下颌第三磨牙和下颌骨几个变量的测量分析,旨在发现早期预测下颌第三磨牙阻生或萌出的一些客观指标,为临床治疗方案提供依据。 材料和方法 对134例平均年龄为19.8岁的大学生(男性60例,女性74例,共213颗下颌第三磨牙)拍摄标准全景片并描图。将其分为阻生组和萌出组。阻
Predict the third molar mandibular impaction, so far no objective criteria. The use of panoramic film to estimate the eruption of the third molar mandibular molars clearance is currently one of the more accurate evaluation method. In this paper, the panoramic analysis of mandibular third molar and mandibular several variables in the measurement analysis to find the early prediction of the mandibular third molar impaction or eruption of some objective indicators for the clinical treatment programs provide the basis. MATERIALS AND METHODS: A total of 134 college students (60 males, 74 females and 213 mandibular third molars) with a mean age of 19.8 years old were photographed and scanned. Divided into impaction group and eruption group. Resistance