3-dimensional reconstruction of mandibular canal at the interforaminal region using microcomputed tomography in Korean
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
PURPOSE. The purpose of this study was to identify the complex course of the mandibular canal using 3D reconstruction of microCT images and to provide the diagram for clinicians to help them understand at the interforaminal region in Korean. MATERIALS AND METHODS. Twenty-six hemimandibles obtained from cadavers were examined using microCT, and the images were reconstructed. At both the midpoint of mental foramen and the tip of anterior loop, the bucco-lingual position, the height from the mandibular inferior border, the horizontal distance between two points, and position relative to tooth site on the mandibular canal were measured. The angle that the mental canal diverges from the mandibular canal was measured in posteriorsuperior and lateral-superior direction. RESULTS. The buccal distance from the mandibular canal was significantly much shorter than lingual distance at both the mental foramen and the tip of anterior loop. The mandibular canal at the tip of anterior loop was significantly located closer to buccal side and higher than at the mental foramen. And the mental canal most commonly diverged from the mandibular canal below the first premolar by approximately 50º posterior-superior and 41º lateral-superior direction, which had with a mean length of 5.19 mm in front of the mental foramen, and exited to the mental foramen below the second premolar. CONCLUSION. These results suggest that it could form a hazardous tetrahedron space at the interforaminal region, thus, the clinician need to pay attention to the width of a premolar tooth from the mental foramen during dental implant placement.
Abstract
PURPOSE. The purpose of this study was to identify the complex course of the mandibular canal using 3D reconstruction of microCT images and to provide the diagram for clinicians to help them understand at the interforaminal region in Korean. MATERIALS AND METHODS. Twenty-six hemimandibles obtained from cadavers were examined using microCT, and the images were reconstructed. At both the midpoint of mental foramen and the tip of anterior loop, the bucco-lingual position, the height from the mandibular inferior border, the horizontal distance between two points, and position relative to tooth site on the mandibular canal were measured. The angle that the mental canal diverges from the mandibular canal was measured in posteriorsuperior and lateral-superior direction. RESULTS. The buccal distance from the mandibular canal was significantly much shorter than lingual distance at both the mental foramen and the tip of anterior loop. The mandibular canal at the tip of anterior loop was significantly located closer to buccal side and higher than at the mental foramen. And the mental canal most commonly diverged from the mandibular canal below the first premolar by approximately 50º posterior-superior and 41º lateral-superior direction, which had with a mean length of 5.19 mm in front of the mental foramen, and exited to the mental foramen below the second premolar. CONCLUSION. These results suggest that it could form a hazardous tetrahedron space at the interforaminal region, thus, the clinician need to pay attention to the width of a premolar tooth from the mental foramen during dental implant placement.
참고문헌 (27)
- Xiang Hua Liang, "Residual bone height measured by panoramic radiography in older edentulous Korean patients", The Journal of Advanced of Prosthodontics, 6(1), pp.53~59 (2014), 대한치과보철학회[DOI]
- Feine JS, "The McGill Consensus Statement on Overdentures. Montreal, Quebec, Canada. May 24-25, 2002", Int J Prosthodont, 15, pp.413~414 (2002)
- Watanabe H, "Mandible size and morphology determined with CT on a premise of dental implant operation", Surg Radiol Anat, 32, pp.343~349 (2010)
- Kim MK, "Head and neck anatomy", pp.86~ (2011), Dental &Medical Publishing
- Li X, "The prevalence, length and position of the anterior loop of the inferior alveolar nerve in Chinese, assessed by spiral computed tomography", Surg Radiol Anat, 35, pp.823~830 (2013)
- Juodzbalys G, "Anatomy of mandibular vital structures. part II: Mandibular incisive canal, mental foramen and associated neurovascular bundles in relation with dental implantology", J Oral Maxillofac Res, 1, pp.e3~ (2010)
- Hwang K, "Vulnerability of the inferior alveolar nerve and mental nerve during genioplasty:an anatomic study", J Craniofac Surg, 16, pp.10~14 (2005)
- Kim ST, "Location of the mandibular canal and the topography of its neurovascular structures", J Craniofac Surg, 20, pp.936~939 (2009)
- Apostolakis D, "The anterior loop of the inferior alveolar nerve: prevalence, measurement of its length and a recommendation for interforaminal implant installation based on cone beam CT imaging", Clin Oral Implants Res, 23, pp.1022~1030 (2012)
- 김흥중, "Cortical and cancellous bone thickness on the anterior region of alveolar bone in Korean: a study of dentate human cadavers", The Journal of Advanced of Prosthodontics, 4(3), pp.146~152 (2012), 대한치과보철학회[DOI]
- Yu SK, "Anatomical configuration of the inferior alveolar neurovascular bundle: a histomorphometric analysis", Surg Radiol Anat, 38, pp.195~201 (2016)
- Jacobs R, "Appearance of the mandibular incisive canal on panoramic radiographs", Surg Radiol Anat, 26, pp.329~333 (2004)
- Mardinger O, "Anterior loop of the mental canal: an anatomical-radiologic study", Implant Dent, 9, pp.120~125 (2000)
- Lee MH, "Histologic features and fascicular arrangement of the inferior alveolar nerve", Arch Oral Biol, 60, pp.1736~1741 (2015)
- Uchida Y, "Measurement of anterior loop length for the mandibular canal and diameter of the mandibular incisive canal to avoid nerve damage when installing endosseous implants in the interforaminal region: a second attempt introducing cone beam computed tomography", J Oral Maxillofac Surg, 67, pp.744~750 (2009)
- Choi DY, "Trabecular bone ratio of the mandibular condyle according to the presence of teeth: a micro-CT study", Surg Radiol Anat, 34, pp.519~526 (2012)
- Engelke K, "A digital model of trabecular bone", J Bone Miner Res, 11, pp.480~489 (1996)
- Song WC, "Microanatomy of the incisive canal using three-dimensional reconstruction of microCT images: an ex vivo study", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 108, pp.583~590 (2009)
- 유선경, "Morphological assessment of the anterior loop of the mandibular canal in Koreans", Anatomy and Cell Biology, 48(1), pp.75~80 (2015), 대한해부학회
- Moiseiwitsch JR, "Position of the mental foramen in a North American, white population", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 85, pp.457~460 (1998)
- Greenstein G, "The mental foramen and nerve:clinical and anatomical factors related to dental implant placement:a literature review", J Periodontol, 77, pp.1933~1943 (2006)
- Choi Y, "Running pattern of the mandibular canal in Korean population, by 3-dimensional reconstructed computed tomographic imaging analysis", Implantology, 13, pp.152~161 (2009)
- Kim MS, "Dental anatomy and morphology", pp.163~176 (2016), DaehanNarae Publishing Inc
- de Freitas V, "Direction of the mental canal in human mandibles", Aust Dent J, 21, pp.338~340 (1976)
- Krekmanov L, "Tilting of posterior mandibular and maxillary implants for improved prosthesis support", Int J Oral Maxillofac Implants, 15, pp.405~414 (2000)
- Hu KS, "Branching patterns and intraosseous course of the mental nerve", J Oral Maxillofac Surg, 65, pp.2288~2294 (2007)
- Mraiwa N, "Presence and course of the incisive canal in the human mandibular interforaminal region: two-dimensional imaging versus anatomical observations", Surg Radiol Anat, 25, pp.416~423 (2003)