岭南地区广府民系人群上颌第二恒磨牙牙根和根管形态的CBCT研究
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摘要
目的研究岭南地区广府民系人群上颌第二恒磨牙的牙根和根管形态。方法收集广府民系患者723份CBCT影像学资料,共1 220颗上颌第二恒磨牙,观察其牙根和根管形态,比较和分析其形态特征和变异情况。结果上颌第二恒磨牙的牙根形态:单根型68颗、双根型417颗、三根型709颗、四根型26颗,各根型检出率在不同性别和年龄组的差异均无统计学意义(P> 0.05)。上颌第二恒磨牙的根管形态:单根型以Ⅷ型(3-3)为主,占63.23%;双根型不同融合根的根管形态分布差异具有统计学意义(P <0.01);三根型近颊根的根管形态以Ⅰ型(1-1)为主,占78.84%,Ⅰ型、Ⅳ型(2-2)根管分布情况在不同年龄组和性别间的差异均有统计学意义(P <0.01)。上颌第二恒磨牙双侧牙根形态对称性达75.86%,双侧牙根和根管形态对称性达73.64%。结论岭南地区广府民系人群上颌第二恒磨牙牙根及根管形态特征与国内外其他地区人群有一定差异性。
Objective To research the root and root canal morphology of maxillary second permanent molars in the Guangfu population of the Lingnan area. Methods A total of 1220 maxillary second permanent molars were collected from the 723 CBCT images of the Guangfu population. The root and root canal configurations were observed and counted, and the morphological characteristics and changes were compared and analyzed. Results The maxillary second permanent molars included 709 three-root molars, 417 double root molars, 68 single root molars and 26 four-root molars. The difference in the detection rate of each root type in different sex and age groups was not statistically significant(P > 0.05). Root canal morphdogy of maxillary second permanent molars: type Ⅷ(3-3) was the most common type of root canals in single root molars, accounting for 63.25%. Significant differences in the detection rates of canal configurations were noted among the three subtypes of fused root canals in double root molars(P < 0.01). Root canal morphology of the mesiobuccal root of the three-root molars was mainly typeⅠ(1-1), significantly accounting for 78.84%. Significant sex and age differences were noted in the detection rate of type Ⅰ and Ⅳ root canals(P < 0.01). In addition,75.86% of maxillary second permanent molars had symmetrical roots, and 73.64% of the bilateral teeth had symmetrical roots and canals. Conclusion The root and root canal morphology of maxillary second permanent molars in the Guangfu population in the Lingnan area are different compared with other areas at home and abroad.
Objective To research the root and root canal morphology of maxillary second permanent molars in the Guangfu population of the Lingnan area. Methods A total of 1220 maxillary second permanent molars were collected from the 723 CBCT images of the Guangfu population. The root and root canal configurations were observed and counted, and the morphological characteristics and changes were compared and analyzed. Results The maxillary second permanent molars included 709 three-root molars, 417 double root molars, 68 single root molars and 26 four-root molars. The difference in the detection rate of each root type in different sex and age groups was not statistically significant(P > 0.05). Root canal morphdogy of maxillary second permanent molars: type Ⅷ(3-3) was the most common type of root canals in single root molars, accounting for 63.25%. Significant differences in the detection rates of canal configurations were noted among the three subtypes of fused root canals in double root molars(P < 0.01). Root canal morphology of the mesiobuccal root of the three-root molars was mainly typeⅠ(1-1), significantly accounting for 78.84%. Significant sex and age differences were noted in the detection rate of type Ⅰ and Ⅳ root canals(P < 0.01). In addition,75.86% of maxillary second permanent molars had symmetrical roots, and 73.64% of the bilateral teeth had symmetrical roots and canals. Conclusion The root and root canal morphology of maxillary second permanent molars in the Guangfu population in the Lingnan area are different compared with other areas at home and abroad.
引文
[1]Roberto H,Eduardo GFJ,Angelo CLT,et al.Factors affecting the periapical healing process of endodontically treated teeth[J].JApp Oral Sci,2017,25(5):465-476.
[2]Martins JNR,Marques D,Mata A,et al.Root and root canal morphology of the permanent dentition in a Caucasian population:a cone-beam computed tomography study[J].Int J Endod,2017,50(11):1013-1026.
[3]Kashyap RR,Beedubail SP,Kini R,et al.Assessment of the number of root canals in the maxillary and mandibular molars:a radiographic study using cone beam computed tomography[J].J Conserv Dent,2017,20(5):288-291.
[4]Vertucci FJ.Root canal anatomy of the human permanent teeth[J].Oral Surg Oral Med Oral Pathol,1984,58(5):589-599.
[5]Olczak K,Pawlicka H.The morphology of maxillary first and second molars analyzed by cone-beam computed tomography in a polish population[J].BMC Medical Imaging,2017,17(1):68.
[6]Wu D,Zhang G,Liang R,et al.Root and canal morphology of maxillary second molars by cone beam computed tomography in a native Chinese population[J].J Int Med Res,2017,45(2):830-842.
[7]Ghoncheh Z,Zade BM,Kharazifard MJ.Root morphology of the maxillary first and second molars in an Iranian population using cone beam computed tomography[J].J Dent,2017,14(3):115-122.
[8]Tian XM,Yang XW,Qian L,et al.Analysis of the root and canal morphologies in maxillary first and second molars in a Chinese population using cone-beam computed tomography[J].J Endod,2016,42(5):696-701.
[9]Zhang Q,Chen H,Fan B,et al.Root and root canal morphology in maxillary second molar with fused root from a native Chinese population[J].J Endod,2014,40(6):871-875.
[10]Gu Y,Wang W,Ni L.Four-rooted permanent maxillary first and second molars in a northwestern Chinese population[J].Archives of oral biology,2015,60(6):811-817.
[11]Shetty H,Sontakke S,Karjodkar F,et al.A cone beam computed tomography(CBCT)evaluation of MB2 canals in endodontically treated permanent maxillary molars.A retrospective study in Indian population[J].J Clin Exp Dent,2017,9(1):e51-e55.
[12]Ratanajirasut R,Panichuttra A,Panmekiate S.A cone-beam computed tomographic study of root and canal morphology of maxillary first and second permanent molars in a Thai population[J].J Endod,2018,44(1):56-61.
[13]Pan JYY,Parolia A,Chuah SR,et al.Root canal morphology of permanent teeth in a Malaysian subpopulation using cone-beam computed tomography[J].BMC Oral Health,2019,19(1).doi:10.1186/s12903-019-0710-z.
[14]Ghobashy AM,Nagy MM,Bayoumi AA.Evaluation of root and canal morphology of maxillary permanent molars in an Egyptian population by cone-beam computed tomography[J].J Endod,2017,43(7):1089-1092.
[15]Zeng C,Shen Y,Guan X,et al.Rare root canal configuration of bilateral maxillary second molar using cone-beam computed tomographic scanning[J].J Endod,2016,42(4):673-677.
[16]Perez Heredia M,Ferrer Luque CM,Bravo M,et al.Cone beam computed tomographic study of root anatomy and canal configuration of molars in a Spanish population[J].J Endod,2017,43(9):1511-1516.
[17]石建军.上颌第二磨牙腭侧2根管1例[J].广东牙病防治,2015,23(12):667-668.
[18]Felsypremila G,Vinothkumar TS,Kandaswamy D.Anatomic symmetry of root and root canal morphology of posterior teeth in Indian subpopulation using cone beam computed tomography:a retrospective study[J].Eur J Dent,2015,9(4):500-507.
[2]Martins JNR,Marques D,Mata A,et al.Root and root canal morphology of the permanent dentition in a Caucasian population:a cone-beam computed tomography study[J].Int J Endod,2017,50(11):1013-1026.
[3]Kashyap RR,Beedubail SP,Kini R,et al.Assessment of the number of root canals in the maxillary and mandibular molars:a radiographic study using cone beam computed tomography[J].J Conserv Dent,2017,20(5):288-291.
[4]Vertucci FJ.Root canal anatomy of the human permanent teeth[J].Oral Surg Oral Med Oral Pathol,1984,58(5):589-599.
[5]Olczak K,Pawlicka H.The morphology of maxillary first and second molars analyzed by cone-beam computed tomography in a polish population[J].BMC Medical Imaging,2017,17(1):68.
[6]Wu D,Zhang G,Liang R,et al.Root and canal morphology of maxillary second molars by cone beam computed tomography in a native Chinese population[J].J Int Med Res,2017,45(2):830-842.
[7]Ghoncheh Z,Zade BM,Kharazifard MJ.Root morphology of the maxillary first and second molars in an Iranian population using cone beam computed tomography[J].J Dent,2017,14(3):115-122.
[8]Tian XM,Yang XW,Qian L,et al.Analysis of the root and canal morphologies in maxillary first and second molars in a Chinese population using cone-beam computed tomography[J].J Endod,2016,42(5):696-701.
[9]Zhang Q,Chen H,Fan B,et al.Root and root canal morphology in maxillary second molar with fused root from a native Chinese population[J].J Endod,2014,40(6):871-875.
[10]Gu Y,Wang W,Ni L.Four-rooted permanent maxillary first and second molars in a northwestern Chinese population[J].Archives of oral biology,2015,60(6):811-817.
[11]Shetty H,Sontakke S,Karjodkar F,et al.A cone beam computed tomography(CBCT)evaluation of MB2 canals in endodontically treated permanent maxillary molars.A retrospective study in Indian population[J].J Clin Exp Dent,2017,9(1):e51-e55.
[12]Ratanajirasut R,Panichuttra A,Panmekiate S.A cone-beam computed tomographic study of root and canal morphology of maxillary first and second permanent molars in a Thai population[J].J Endod,2018,44(1):56-61.
[13]Pan JYY,Parolia A,Chuah SR,et al.Root canal morphology of permanent teeth in a Malaysian subpopulation using cone-beam computed tomography[J].BMC Oral Health,2019,19(1).doi:10.1186/s12903-019-0710-z.
[14]Ghobashy AM,Nagy MM,Bayoumi AA.Evaluation of root and canal morphology of maxillary permanent molars in an Egyptian population by cone-beam computed tomography[J].J Endod,2017,43(7):1089-1092.
[15]Zeng C,Shen Y,Guan X,et al.Rare root canal configuration of bilateral maxillary second molar using cone-beam computed tomographic scanning[J].J Endod,2016,42(4):673-677.
[16]Perez Heredia M,Ferrer Luque CM,Bravo M,et al.Cone beam computed tomographic study of root anatomy and canal configuration of molars in a Spanish population[J].J Endod,2017,43(9):1511-1516.
[17]石建军.上颌第二磨牙腭侧2根管1例[J].广东牙病防治,2015,23(12):667-668.
[18]Felsypremila G,Vinothkumar TS,Kandaswamy D.Anatomic symmetry of root and root canal morphology of posterior teeth in Indian subpopulation using cone beam computed tomography:a retrospective study[J].Eur J Dent,2015,9(4):500-507.