7~10岁儿童基于锥形束CT影像的下颌孔位置研究  

Research on cone-beam CT of mandibular foramen location in children aged 7-10 years

作　　者：王珺[1] 赵敏龙 闫波[3] Wang Jun;Zhao Minlong;Yan Bo(Department of Pediatric Dentistry,The First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,China;Department of Implantology,Anyang Sixth People′s Hospital,Anyang 455000,China;Department of Oral Radiology,The First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,China)

机构地区：[1]郑州大学第一附属医院儿童口腔科,郑州450052 [2]安阳市第六人民医院口腔种植科,安阳455000 [3]郑州大学第一附属医院口腔放射科,郑州450052

出　　处：《中华口腔医学杂志》2023年第11期1103-1109,共7页Chinese Journal of Stomatology

摘　　要：目的利用锥形束CT探究儿童下颌孔在下颌骨内的相对位置变化,及其与平面的相对位置关系,为儿童下牙槽神经阻滞麻醉(IANB)提供指导。方法纳入2021年3月至2023年2月在郑州大学第一附属医院影像数据库中的202例7~10岁儿童锥形束CT数据,患者按年龄分为7、8、9及10岁组,其中7岁组男性20例,女性22例;8岁组男性31例,女性28例;9岁组男性30例,女性26例;10岁组男性22例,女性23例。以46例25~30岁成人作为对照组(男性24例,女性22例)。测量所有患者下颌孔中心点至下颌支前缘距离(MF-A)、下颌孔中心点至下颌支后缘距离(MF-P)及下颌孔中心点至平面的最短距离(MF-OP),测量下颌第一乳磨牙(或下颌第一前磨牙)、下颌第二乳磨牙(或下颌第二前磨牙)邻面接触点和下颌孔中心点连线与矢状面夹角(∠A)。比较左右两侧、不同性别以及不同年龄组中下颌孔的相关数据差异是否有统计学意义。结果202例7~10岁儿童下颌孔位置双侧对称,不同性别间下颌骨生长发育状况差异无统计学意义(P>0.05)。MF-A随年龄增长有增大趋势,由7岁组的(15.83±1.28)mm逐渐增大至10岁组的(17.10±1.60)mm,其中10岁组MF-A与7、8和9岁组相比差异均有统计学意义(P<0.05);MF-P随年龄增长有增大趋势,由7岁组的(9.12±1.17)mm逐渐增大至10岁组的(11.25±1.60)mm,儿童各年龄组间MF-P相比差异均有统计学意义(P<0.05)。MF-OP随年龄增长有上升趋势,由7岁组平面下(-0.24±2.31)mm逐渐移行至10岁组平面上(1.08±1.95)mm,10岁组与7、8和9岁组相比差异均有统计学意义(P<0.05)。MF-A与MF-P比值随年龄增长呈减小趋势,由7岁组的1.77±0.30逐渐减小至10岁组的1.55±0.29,除8岁组与9岁组间差异无统计学意义(P>0.05)外,儿童其余各年龄组间MF-A/MF-P差异均有统计学意义(P<0.05)。儿童各年龄组∠A均显著大于参考值(45°)(P<0.05),且组间差异均无统计学意义(P>0.05)。儿童各年龄组与对照Objective Cone-beam CT(CBCT)images were used to investigate the relative position changes of mandibular foramen in the mandible of children and the relative position relationship with the occlusal plane,so as to provide clinical guidance for inferior alveolar nerve block(IANB)anesthesia of children.Methods The CBCT data of 202 children aged 7-10 years in the image database of the First Affiliated Hospital of Zhengzhou University from March 2021 to February 2023 were included.Patients were divided into 4 groups according to age diffrences as 7-year-old,8-year-old,9-year-old and 10-year-old.There were 20 males and 22 females in the 7-year-old group,31 males and 28 females in the 8-year-old group,30 males and 26 females in the 9-year-old group,and 22 males and 23 females in the 10-year-old group,respectively.Forty-six adults aged 25-30 years were selected as control group,24 males and 22 females included.The distance between the center point of mandibular foramen with the anterior edge of ascending ramus of mandible(MF-A),the posterior edge of the ascending ramus of mandible(MF-P)and the shortest distance between the center point of mandibular foramen with occlusal plane(MF-OP)were measured.The angle between the center point of the mandibular foramen with the sagittal plane of the mandibular first deciduous molar(or mandibular first premolar)and mandibular second deciduous molar(or mandibular second premolar)(∠A)was measured.The data of mandibular foramen were compared between the left and right sides and among different genders and different age groups.Results The position of mandibular foramen in children aged 7-10 years maintained bilateral symmetry,and mandibular growth and development were relatively consistent between different genders(P>0.05).MF-A increased with age,from(15.83±1.28)mm in 7-year-old group to(17.10±1.60)mm in 10-year-old group gradually.There were significant differences in MF-A between the 10-year-old group with the 7-year-old group,the 8-year-old group[(15.98±1.53)mm]and the 9-year-old g

关 键 词：麻醉 牙科 下颌骨 锥形束计算机体层摄影术 下颌孔 下牙槽神经阻滞麻醉 儿童 

分 类 号：R816.98[医药卫生—放射医学] R788[医药卫生—临床医学]