摘要
目的:本研究采用锥形束CT对下颌第二磨牙舌侧区进行分析,研究舌侧凹陷程度在性别、不同年龄组和不同位置的差异,以期为临床种植手术提供参考。方法:选取本院口腔科120例患者的锥形束CT(cone-beam computed tomography,CBCT)扫描数据,每位患者下颌骨嵴顶宽度大于基底部宽度。按年龄分成3组,通过测量近远中平面选定的不同的解剖结构标志并分析结果。结果:左右测量值具有对称性;随着年龄的增长,牙槽骨上下宽度(Wc,Wb)和高度(VCB)方面差异均有统计学意义(P<0.05),且逐渐减小;男性的牙槽骨宽度和高度均大于女性(P<0.05);远中平面的上下骨宽度(Wc,Wb)要大于近中平面(P<0.05);随着越向远中方向,牙槽骨高度(VCB)逐渐变小(P<0.05);舌侧凹陷的角度(α)和舌侧骨凹陷的深度(LCD),远中测量平面要大于近中平面(P<0.05)。结论:在种植手术时,由于增龄性改变,要综合考虑舌侧区骨宽度、高度及角度等因素,尤其在女性患者及选择宽种植体时;在种植牙手术中,CBCT可以提供更详细的口腔解剖结构信息,帮助医生更精确地规划种植手术。
Objective:This study aimed to analyze the lingual concavity of the mandibular second molar region using cone-beam computed tomography(CBCT),and investigate the differences in concavity depth among genders,different age groups,and different positions,in order to provide reference for clinical implant surgery.Methods:CBCT data of 120 patients in our department were selected,whose mandibular ridge width was greater than the basal width.They were divided into three groups according to age,and the selected anatomical landmarks were measured and analyzed.Results:The left and right measurements were symmetrical.With increasing age,there were significant differences in the upper and lower width(Wc,Wb)and height(VCB)of the alveolar bone(P<0.05),and these differences gradually decreased.The width and height of the alveolar bone in males were greater than those in females(P<0.05).The upper and lower bone widths(Wc,Wb)in the distal-middle plane were greater than those in the mesial-middle plane(P<0.05).As the measurement plane moved toward the distal-middle direction,the height of the alveolar bone(VCB)gradually decreased(P<0.05).The angle(α)and depth(LCD)of the lingual concavity in the distal-middle measurement plane were greater than those in the mesial-middle plane(P<0.05).Conclusion:In implant surgery,due to age-related changes,it is necessary to comprehensively consider the changes in bone width,height,angle and other factors in the lingual area,which may bring surgical risks,especially in female patients and when selecting wide implants.It is important to fully understand the anatomical characteristics of this area and develop a comprehensive plan for implant surgery.
作者
都佳寅
王宁
闫卉
DU Jia-yin;WANG Ning;YAN Hui(Department of Stomatology,Nankai Hospital,Tianjin,Tianjin 300110;Department of Stomatology,Second Hospital of Tianjin University of Traditional Chinese Medicine,Tianjin 300143)
出处
《中国医疗器械信息》
2024年第6期18-20,27,共4页
China Medical Device Information
关键词
下颌第二磨牙
舌侧凹陷
牙槽嵴形态
锥形束CT
增龄性改变
种植牙
mandibular second molar
lingual concavity
alveolar ridge morphology
cone-beam computed tomography
age-related changes
dental implant
