摘要
目的:分析、研究呼和浩特地区人群及该地区蒙、汉族人群间下颌第二磨牙的牙根及根管系统差异性,为临床治疗及研究提供一定参考依据。方法:筛选符合纳入标准的244名就诊患者的CBCT影像资料,共计449颗下颌第二磨牙。观察并统计下颌第二磨牙牙根及根管形态,并与近年同类研究进行地区及民族相关性比较、分析。结果:将研究资料,按照牙位划分左、右两组,以下结果均取得双侧一致性。下颌第二磨牙的牙根统计分析显示:C形根蒙古族中检出率较汉族高,该地区蒙汉族间牙根形态分布具有统计学意义(P<0.05)。C形根管总体检出率:蒙古族为42.6%,汉族为27%;该地区蒙、汉族间C形根管的检出率存在差异,具有统计学意义(P<0.01)。C形根管各截面差异显著且具有统计学意义(P<0.001)。结论:呼和浩特地区人群下颌第二磨牙牙根及根管形态相较其他地区,具有一定地区性差异;且蒙、汉族人群的C形根及C形根管检出率存在差异性。
Objective:To analyze and study the differences of root and canal system of mandibular second molars in Hohhot and Mongolian and Han in this area,and to provide some reference for clinical treatment and research.Methods:The CBCT imaging data of 244 patients who met the inclusion criteria were screened,including 449 mandibular second molars.The morphology of root canals and roots of mandibular second molars were observed and statistically analyzed,and compared with similar studies in recent years.Results:The data of the study were divided into two groups according to the tooth position,and the following results obtained bilateral consistency.Statistical analysis of the roots of mandibular second molars,The results showed that the incidence of C-shaped roots in Mongols was higher than that of Han,and the morphological distribution of root in this area was statistically significant(P<0.05).The overall incidence of C-shaped root canals was 42.6%in Mongolian and 27%in Han.There were significant differences in C-shaped root canal distribution between Mongolian and Han in this area(P<0.01).There were significant differences in the morphology distribution of C-shaped root canals at different sections(P<0.001).Conclusion:The morphology of root canal and root root of mandibular second molars in Hohhot area is different from that in other areas.Moreover,the incidence of C-shaped root and C-shaped root canal in Mongolian and Han populations is different.C-shaped root canal sections showed continuous changes,and the morphological distribution of each section was statistically significant.
作者
常娜
张蕾
CHANG Na;ZHANG Lei(Huhhot Stomatological Hospital,Huhhot 010030,China)
出处
《中华老年口腔医学杂志》
2021年第4期207-211,共5页
Chinese Journal of Geriatric Dentistry
