下颌下窝的锥形束CT影像分析
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摘要
目的通过锥形束CT(CBCT)测量分析下颌骨下颌下窝的形态,为牙种植术提供一定的参考。方法对100例CBCT影像中下颌下窝骨倒凹的分布规律进行观察分析,测量下颌下窝深度、骨倒凹最深点至牙槽嵴顶和颊侧骨壁的距离,分析其与下颌管的毗邻关系。结果下颌下窝位于下颌磨牙区,大部分下颌下窝骨倒凹最深点低于下颌管上缘;第一磨牙区下颌下窝骨倒凹深度为(1.2±0.73)mm,第二磨牙区为(1.7±0.54)mm,性别、左右及是否有牙的差异无统计学意义。第一磨牙区下颌下窝最深点至牙槽嵴顶的垂直距离在有牙和无牙时分别为(17.2±2.16)mm和(13.1±2.71)mm,至颊侧骨壁的水平距离为(10.1±2.07)mm,第二磨牙区下颌下窝最深点至牙槽嵴顶的垂直距离在有牙和无牙时分别为(15.3±2.43)mm和(9.6±2.56)mm,至颊侧骨壁的水平距离为(11.3±1.53)mm。结论在下颌磨牙区行种植手术时,应综合考虑下颌下窝和下颌管对手术的影响,CBCT可以实现对下颌下窝的精确测量,能够清晰显示下颌下窝与下颌管的位置关系,为下颌磨牙区种植手术提供重要信息。
Objective The aim of this study was to measure and evaluate the bone anatomy morphology of submandibular fossa by cone-beam CT(CBCT). Methods The CBCT images of 100 patients were retrospectively studied.The depth of the submandibular fossa, the adjacency of mandibular canal, and submandibular fossa were observed and measured. Results The deepest point of the submandibular fossa was lower than that of the upper edge of the mandibular canal. The average depth of submandibular fossa in the 1 st molar region was(1.2±0.73) mm, and that in the 2 nd molar region was(1.7±0.54) mm. The average distances from the deepest point of the submandibular fossa to the alveolar crest in the 1 st molar were(17.2±2.16) mm and(13.1±2.71) mm(tooth missing), and those in the 2 st molar were(15.3±2.43) mm and(9.6±2.56) mm(tooth missing). The horizontal distance from the depth of submandibular fossa to buccal bone wall in the 1 st molar was(10.1±2.07) mm and that in the 2 st molar was(11.3±1.53) mm. Conclusion CBCT clearly showed the relationship between the submandibular fossa and the mandibular canal.
Objective The aim of this study was to measure and evaluate the bone anatomy morphology of submandibular fossa by cone-beam CT(CBCT). Methods The CBCT images of 100 patients were retrospectively studied.The depth of the submandibular fossa, the adjacency of mandibular canal, and submandibular fossa were observed and measured. Results The deepest point of the submandibular fossa was lower than that of the upper edge of the mandibular canal. The average depth of submandibular fossa in the 1 st molar region was(1.2±0.73) mm, and that in the 2 nd molar region was(1.7±0.54) mm. The average distances from the deepest point of the submandibular fossa to the alveolar crest in the 1 st molar were(17.2±2.16) mm and(13.1±2.71) mm(tooth missing), and those in the 2 st molar were(15.3±2.43) mm and(9.6±2.56) mm(tooth missing). The horizontal distance from the depth of submandibular fossa to buccal bone wall in the 1 st molar was(10.1±2.07) mm and that in the 2 st molar was(11.3±1.53) mm. Conclusion CBCT clearly showed the relationship between the submandibular fossa and the mandibular canal.
引文
[1]Chan HL,Benavides E,Yeh CY,et al.Risk assessment of lingual plate perforation in posterior mandibular region:a virtual implant placement study using cone-beam computed tomography[J].J Periodontol,2011,82(1):129-135.
[2]Parnia F,Fard EM,Mahboub F,et al.Tomographic volume evaluation of submandibular fossa in patients requiring dental implants[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2010,109(1):e32-e36.
[3]Yang J,Cavalcanti MG,Ruprecht A,et al.2-D and3-D reconstructions of spiral computed tomography in localization of the inferior alveolar canal for dental implants[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,1999,87(3):369-374.
[4]韩科.种植义齿[M].北京:人民军医出版社,2007:180.Han K.Implant denture[M].Beijing:People’s Military Medical Press,2007:180.
[5]李立峰,平飞云.成人下颌骨舌下腺窝形态的分析研究[J].实用口腔医学杂志,2012,28(5):589-591.Li LF,Ping YF.The morphological analysis of sublingual gland fossa on in-vitro adult mandibles[J].JPract Stomatol,2012,28(5):589-591.
[6]Scarfe WC,Farman AG,Sukovic P.Clinical applications of cone-beam computed tomography in dental practice[J].J Can Dent Assoc,2006,72(1):75-80.
[7]Benninger B,Peterson A,Cook V.Assessing validity of actual tooth height and width from cone beam images of cadavers with subsequent dissection to aid oral surgery[J].J Oral Maxillofac Surg,2012,70(2):302-306.
[8]Sumer AP,Zengin AZ,Uzun C,et al.Evaluation of submandibular fossa using computed tomography and panoramic radiography[J].Oral Radiol,2015,31(1):23-27.
[9]Yildiz S,Bayar GR,Guvenc I,et al.Tomographic evaluation on bone morphology in posterior mandibular region for safe placement of dental implant[J].Surg Radiol Anat,2015,37(2):167-173.
[10]Park CW,Park KB,Park KP,et al.Bucco-lingual implant path in the posterior mandible[J].Korean JPhys Anthropol.1998,11(1):73-81.
[11]Kim SE,Kim JS,Kim JD.Comparison of the buccolingual inclination in alveolar bone and tooth using dental CBCT[J].Korean J Oral Maxillofac Radiol,2008,38(1):17-22.
[12]Güler AU,Sumer M,Sumer P,et al.The evaluation of vertical heights of maxillary and mandibular bones and the location of anatomic landmarks in panoramic radiographs of edentulous patients for implant dentistry[J].J Oral Rehabil,2005,32(10):741-746.
[13]de Souza LA,Souza Picorelli Assis NM,Ribeiro RA,et al.Assessment of mandibular posterior regional landmarks using cone-beam computed tomography in dental implant surgery[J].Ann Anat,2016,205:53-59.
[2]Parnia F,Fard EM,Mahboub F,et al.Tomographic volume evaluation of submandibular fossa in patients requiring dental implants[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2010,109(1):e32-e36.
[3]Yang J,Cavalcanti MG,Ruprecht A,et al.2-D and3-D reconstructions of spiral computed tomography in localization of the inferior alveolar canal for dental implants[J].Oral Surg Oral Med Oral Pathol Oral Radiol Endod,1999,87(3):369-374.
[4]韩科.种植义齿[M].北京:人民军医出版社,2007:180.Han K.Implant denture[M].Beijing:People’s Military Medical Press,2007:180.
[5]李立峰,平飞云.成人下颌骨舌下腺窝形态的分析研究[J].实用口腔医学杂志,2012,28(5):589-591.Li LF,Ping YF.The morphological analysis of sublingual gland fossa on in-vitro adult mandibles[J].JPract Stomatol,2012,28(5):589-591.
[6]Scarfe WC,Farman AG,Sukovic P.Clinical applications of cone-beam computed tomography in dental practice[J].J Can Dent Assoc,2006,72(1):75-80.
[7]Benninger B,Peterson A,Cook V.Assessing validity of actual tooth height and width from cone beam images of cadavers with subsequent dissection to aid oral surgery[J].J Oral Maxillofac Surg,2012,70(2):302-306.
[8]Sumer AP,Zengin AZ,Uzun C,et al.Evaluation of submandibular fossa using computed tomography and panoramic radiography[J].Oral Radiol,2015,31(1):23-27.
[9]Yildiz S,Bayar GR,Guvenc I,et al.Tomographic evaluation on bone morphology in posterior mandibular region for safe placement of dental implant[J].Surg Radiol Anat,2015,37(2):167-173.
[10]Park CW,Park KB,Park KP,et al.Bucco-lingual implant path in the posterior mandible[J].Korean JPhys Anthropol.1998,11(1):73-81.
[11]Kim SE,Kim JS,Kim JD.Comparison of the buccolingual inclination in alveolar bone and tooth using dental CBCT[J].Korean J Oral Maxillofac Radiol,2008,38(1):17-22.
[12]Güler AU,Sumer M,Sumer P,et al.The evaluation of vertical heights of maxillary and mandibular bones and the location of anatomic landmarks in panoramic radiographs of edentulous patients for implant dentistry[J].J Oral Rehabil,2005,32(10):741-746.
[13]de Souza LA,Souza Picorelli Assis NM,Ribeiro RA,et al.Assessment of mandibular posterior regional landmarks using cone-beam computed tomography in dental implant surgery[J].Ann Anat,2016,205:53-59.