通过透明牙法对上6近颊根根管交通的观察研究
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摘要
目的研究上颌第一恒磨牙近中颊根的根管交通,为口腔学科临床、科研提供参考资料。方法收集上颌第一恒磨牙50颗,通过制作透明牙来观察近中颊根根管交通,统计侧副根管、交通支、回路和钙化段的发生率。结果 50颗透明牙有45颗显示根管形态。侧副根管和交通支发生部位及发生率:(1)侧副根管,根中1/3占4.4%,根尖1/3占37.8%,根颈1/3无;(2)管间交通,根颈1/3占4.4%,根中1/3占20.0%,根尖1/3占8.8%;(3)回路,根中1/3和根尖1/3各占4.4%,根颈1/3无。(4)钙化段,未发现根颈部钙化段,根尖1/3钙化段发生率为13.2%。结论上颌第一恒磨牙近中颊根侧副根管在根尖1/3发生率最高,管间交通多发生在根中1/3,其次是根尖1/3,个别根管管间交通极为复杂,可形成网状交通和回路。根尖1/3根管可发生钙化段。
Objective To study the root canal transportation of the mesiobuccal root of maxillary first molars,and provide reference for clinical and scientific research in stomatology.Methods A total of 50 maxillary first molars were collected.Through making transparent teeth,the mesiobuccal root canal traffic was observed.The incidence of side root canal,traffic branch,loop and calcification segment were statistically analyzed.Results A total of 45 of the 50 transparent teeth showed the root canal form.The site of occurrence and incidence of lateral root canal and traffic branch were as follows:(1)side root canal,middle 1/3 accounting for4.4%,apical 1/3 accounting for 37.8%,none at cervical 1/3;(2)intercanal traffic,cervical 1/3 accounting for4.4%,middle 1/3 accounting for 20.0%,apical 1/3 accounting for 8.8%;(3)loop,middle 1/3 and apical 1/3 accounting for 4.4%each,none at cervical 1/3;(4)calcification segment,no calcification was found in cervical,the incidence of calcification in the apical 1/3 was 13.2%.Conclusion The incidence of the maxillary first permanent molar at 1/3 in the root tip was the highest in the mesiobuccal root canal.The intercanal traffic occurred mostly in 1/3 of the root,followed by 1/3 of the root tip,and individual root canal traffic was very complex and can form network traffic and loop.The calcified segment could occur at the 1/3 root canal of the apical.
Objective To study the root canal transportation of the mesiobuccal root of maxillary first molars,and provide reference for clinical and scientific research in stomatology.Methods A total of 50 maxillary first molars were collected.Through making transparent teeth,the mesiobuccal root canal traffic was observed.The incidence of side root canal,traffic branch,loop and calcification segment were statistically analyzed.Results A total of 45 of the 50 transparent teeth showed the root canal form.The site of occurrence and incidence of lateral root canal and traffic branch were as follows:(1)side root canal,middle 1/3 accounting for4.4%,apical 1/3 accounting for 37.8%,none at cervical 1/3;(2)intercanal traffic,cervical 1/3 accounting for4.4%,middle 1/3 accounting for 20.0%,apical 1/3 accounting for 8.8%;(3)loop,middle 1/3 and apical 1/3 accounting for 4.4%each,none at cervical 1/3;(4)calcification segment,no calcification was found in cervical,the incidence of calcification in the apical 1/3 was 13.2%.Conclusion The incidence of the maxillary first permanent molar at 1/3 in the root tip was the highest in the mesiobuccal root canal.The intercanal traffic occurred mostly in 1/3 of the root,followed by 1/3 of the root tip,and individual root canal traffic was very complex and can form network traffic and loop.The calcified segment could occur at the 1/3 root canal of the apical.
引文
[1]李颖,周梦宇.不同脱钙条件对透明牙体标本制作影响的试验研究[J].华西口腔医学杂志,2009,27(1):13-19.
[2]谢蓓蓓,陈文霞.不同脱钙液对透明牙制作的影响[J].临床口腔医学杂志,2015,31(9):518-520.
[3]张治勇,孙洁.牙科数字成像系统、锥形束CT及透明牙对离体第一恒磨牙根管系统诊断价值的对比性研究[J].华西口腔医学杂志,2013,31(5):441-447.
[4]CLEGHORN B M,CHRISTIE W H,DONG C C.Root and root canal morphology of the human permanent maxillary first molar:a literature review[J].J Endod,2006,32(9):813-821.
[5]VERMA P,LOVE R M.A micro CT study of the mesiobuccal root canal morphology of the maxillary first molar tooth[J].Int Endod J,2011,44(3):210-217.
[6]汪敏,韦永珍,潘乙怀.温州地区人上颌第一恒磨牙牙根解剖的研究[J].牙体牙髓牙周病学杂志,2011,21(5):263-266.
[7]SOMMA F,LEONI D,PLOTINO G,et al.Root canal morphology of the mesiobuccal root of maxillary first molars:a micro-computed tomographic analysis[J].Int Endod J,2009,42(2):165-174.
[8]GU Y,LEE J K,SPANGBERG L S,et al.Minimum-intensity projection for in-depth morphology study of mesiobuccal root[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2011,112(5):671-677.
[9]KHRAISAT A,SMADI L.Canal configuration in the mesio-buccal root of maxillary first molar teeth of a Jordanian population[J].Aust Endod J,2007,33(1):13-17.
[10]PARK J W,LEE J K,HA B H,et al.Three-dimensional analysis of maxillary first molar mesiobuccal root canal configuration and curvature using micro-computed tomography[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2009,108(3):437-442.
[11]DEGERNESS R A,BOWLES W R.Dimension,anatomy and morphology of the mesiobuccal root canal system in maxillary molars[J].J Endod,2010,36(6):985-989.
[12]NGOM P I,DIAGNE F,IDRISSI O D,et al.Comparative odontometric data between moroccan and senegalese[J].Odontostomatol Trop,2007,30(117):17-25.
[13]方溢云,林正梅.毛里求斯人和中国珠三角地区人上颌第一磨牙近中颊根根管形态比较研究[J].实用口腔医学杂志,2010,26(6):759-763.
[14]勾静雪,张志纯.辽西地区上颌第一恒磨牙牙体冠根长度指标的测量[J].辽宁医学院学报,2013,34(4):27-29.
[2]谢蓓蓓,陈文霞.不同脱钙液对透明牙制作的影响[J].临床口腔医学杂志,2015,31(9):518-520.
[3]张治勇,孙洁.牙科数字成像系统、锥形束CT及透明牙对离体第一恒磨牙根管系统诊断价值的对比性研究[J].华西口腔医学杂志,2013,31(5):441-447.
[4]CLEGHORN B M,CHRISTIE W H,DONG C C.Root and root canal morphology of the human permanent maxillary first molar:a literature review[J].J Endod,2006,32(9):813-821.
[5]VERMA P,LOVE R M.A micro CT study of the mesiobuccal root canal morphology of the maxillary first molar tooth[J].Int Endod J,2011,44(3):210-217.
[6]汪敏,韦永珍,潘乙怀.温州地区人上颌第一恒磨牙牙根解剖的研究[J].牙体牙髓牙周病学杂志,2011,21(5):263-266.
[7]SOMMA F,LEONI D,PLOTINO G,et al.Root canal morphology of the mesiobuccal root of maxillary first molars:a micro-computed tomographic analysis[J].Int Endod J,2009,42(2):165-174.
[8]GU Y,LEE J K,SPANGBERG L S,et al.Minimum-intensity projection for in-depth morphology study of mesiobuccal root[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2011,112(5):671-677.
[9]KHRAISAT A,SMADI L.Canal configuration in the mesio-buccal root of maxillary first molar teeth of a Jordanian population[J].Aust Endod J,2007,33(1):13-17.
[10]PARK J W,LEE J K,HA B H,et al.Three-dimensional analysis of maxillary first molar mesiobuccal root canal configuration and curvature using micro-computed tomography[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2009,108(3):437-442.
[11]DEGERNESS R A,BOWLES W R.Dimension,anatomy and morphology of the mesiobuccal root canal system in maxillary molars[J].J Endod,2010,36(6):985-989.
[12]NGOM P I,DIAGNE F,IDRISSI O D,et al.Comparative odontometric data between moroccan and senegalese[J].Odontostomatol Trop,2007,30(117):17-25.
[13]方溢云,林正梅.毛里求斯人和中国珠三角地区人上颌第一磨牙近中颊根根管形态比较研究[J].实用口腔医学杂志,2010,26(6):759-763.
[14]勾静雪,张志纯.辽西地区上颌第一恒磨牙牙体冠根长度指标的测量[J].辽宁医学院学报,2013,34(4):27-29.