Relationship between the position of the mental foramen and the anterior loop of the inferior alveolar nerve as determined by cone beam computed tomography combined with mimics

被引：22
作者：
Department of Implant Dentistry, Stomatology Hospital, Guangxi Medical University, 10 Shuangyong Rd, Nanning, Guangxi [1 ]
530021, China
不详 [2 ]
不详 [3 ]
机构：
[1] Department of Implant Dentistry, Stomatology Hospital, Guangxi Medical University, 10 Shuangyong Rd, Nanning, Guangxi
[2] Department of Oral Medicine and Periodontology, Stomatology Hospital
[3] Occupational Health and Environmental Health, School of Public Health, Guangxi Medical University, Nanning, Guangxi
来源：
J. Comput. Assisted Tomogr. | / 1卷 / 86-93期
关键词：
3D reconstruction; Anterior loop; CBCT; inferior alveolar nerve; mental foramen; Mimics;
D O I：
10.1097/RCT.0000000000000166
中图分类号：
学科分类号：
摘要：
Objective: The position of the mental foramen and the anterior loop length of the inferior alveolar nerve serve as important anatomical landmarks for surgical procedures in the anterior mandibular region. The purpose of this study was to determine the relationship between the anterior loop of the inferior alveolar nerve and the mental foramen by combining cone beam computed tomography and Mimics, a software used to construct 3-dimensional (3D) interactive models of anatomical structures. METHODS: Cone beam computed tomography images from a total of 60 patients were obtained and studied using GALAXY viewer or were imported into Mimics. The anterior loop of the inferior alveolar nerve was reconstructed 3-dimensionally, and then relevant parameters were measured. RESULTS: The parameters were measured, and their values include mean (SD) anterior loop length, 1.16 (1.78) mm; anterior loop angle, 19.13 (26.89) degrees; inferior alveolar canal diameter, 3.01 (0.67) mm; height of the inferior alveolar canal, 10.32 (1.56) mm; 2-dimensional mental foramen diameter, 2.97 (0.61) mm; 3D mental foramen diameter, 2.95 (0.59) mm; 2-dimensional vertical height of the mental foramen, 14.67 (1.67) mm; and 3D vertical height of the mental foramen, 14.61 (1.69) mm. The mental foramen was located apically between the first and second premolars in 51.67% and below the second premolar in 40.83% of the cases. CONCLUSIONS: A relationship was observed between the location of the mental foramen and the presence of the anterior loop of the inferior alveolar nerve. We highlight the effectiveness of cone beam computed tomography and 3D reconstruction in the identification of important anatomical structures relevant for preoperative assessment for surgical procedures in the anterior region of the mandible. © 2015 Wolters Kluwer Health, Inc. All rights reserved.
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页码：86 / 93
页数：7
相关论文
共 32 条
  • [1] Rodella L.F., Buffoli B., Labanca M., Et al., A review of the mandibular and maxillary nerve supplies and their clinical relevance, Arch Oral Biol., 57, pp. 323-334, (2012)
  • [2] Greenstein G., Tarnow D., The mental foramen and nerve: Clinical and anatomical factors related to dental implant placement: A literature review, J Periodontol., 77, pp. 1933-1943, (2006)
  • [3] Bavitz J., Harn S., Hansen C., Et al., An anatomical study of mental neurovascular bundle-implant relationships, Int J Oral Maxillofac Implants., 8, pp. 563-567, (1993)
  • [4] Misch C., Crawford E., Predictable mandibular nerve location-A clinical zone of safety, Int J Oral Implantol., 7, pp. 37-40, (1990)
  • [5] Arzouman M.J., Otis L., Kipnis V., Et al., Observations of the anterior loop of the inferior alveolar canal, Int J Oral Maxillofac Implants., 8, pp. 295-300, (1993)
  • [6] Ma P., Thamby S., Permanent nerve involvement resulting from inferior alveolar nerve blocks, J Am Dent Assoc., 131, pp. 901-907, (2000)
  • [7] Khan I., Halli R., Gadre P., Et al., Correlation of panoramic radiographs and spiral CT scan in the preoperative assessment of intimacy of the inferior alveolar canal to impacted mandibular third molars, J Craniofac Surg., 22, pp. 566-570, (2011)
  • [8] Worthington P., Injury to the inferior alveolar nerve during implant placement: A formula for protection of the patient and clinician, Int J Oral Maxillofac Implants., 19, pp. 731-734, (2004)
  • [9] Bartling R., Freeman K., Kraut R., The incidence of altered sensation of the mental nerve after mandibular implant placement, J Oral Maxillofac Surg., 57, pp. 1408-1412, (1999)
  • [10] Walton J., Altered sensation associated with implants in the anterior mandible: A prospective study, J Prosthet Dent., 83, pp. 443-449, (2000)
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