Localization of the Mental and Infraorbital Foramen with related to the Soft-tissue Landmarks

  • Lee, Yun-Ho (Oral Biology Research Institute, School of Dentistry, Chosun University) ;
  • Lee, Myoung-Hwa (Oral Biology Research Institute, School of Dentistry, Chosun University) ;
  • Yu, Sun-Kyoung (Oral Biology Research Institute, School of Dentistry, Chosun University) ;
  • Jeong, Goo-Soo (Oral Biology Research Institute, School of Dentistry, Chosun University) ;
  • Kim, Do-Kyung (Oral Biology Research Institute, School of Dentistry, Chosun University) ;
  • Kim, Heung-Joong (Oral Biology Research Institute, School of Dentistry, Chosun University)
  • Received : 2012.01.19
  • Accepted : 2012.03.15
  • Published : 2012.03.31

Abstract

During maxillofacial surgery, the infraorbital and mental nerves are blocked at eac foramen to induce local anesthesia. This study examined the relative locations of the infraorbital foramen (IOF) and mental foramen (MF) based on softtissue landmarks. Twenty-eight hemifacial cadavers were dissected to expose the IOF and MF. The distances between the bilateral IOFs, the bilateral MFs, the alae of the nose (alares), and the corners of the mouth (cheilions) were measured directly on cadavers by using a digital vernier caliper. The vertical and horizontal distances of the IOF and MF relative to the alare and cheilion were measured indirectly on digital photographs using Adobe Photoshop (Adobe, CA, USA). The distance between the bilateral IOFs ($58.09{\pm}4.04mm$) was longer than the distance between the bilateral MFs ($50.32{\pm}1.93mm$). The distances between the bilateral alares and cheilions were $41.22{\pm}3.44mm$ and $58.43{\pm}6.62mm$, respectively. The IOF was located $12.92{\pm}3.75mm$ superior and $7.88{\pm}2.56mm$ lateral to the alare, and the vertical angle (Angle 1) between these structures was $31.67{\pm}13.36^{\circ}$ superolaterally. The MF was located $21.83{\pm}3.26mm$ inferior and $5.56{\pm}3.37mm$ medial to the cheilion, and the vertical angle (Angle 2) between these structures was $14.05{\pm}10.12^{\circ}$ inferomedially. In conclusion, these results provide more detailed information about the locations of the IOF and MF relative to soft-tissue landmarks.

Keywords

References

  1. Miller RD. Anesthesia, 5th ed., pp 1520, Churchill Livingstone. Philadelphia, 2000.
  2. Blanton PL, Jeske AH. The key to profound local anesthesia: Neuroanatomy. J Am Dent Assoc. 2003;134:753-760.
  3. Salam GA. Regional anesthesia for office procedures: Part I. Head and neck surgeries. Am Fam Physician. 2004; 69:585-590.
  4. Kim KT, Yu SK, Lee MH, Lee YH, Kim HR, Kim HJ. Cortical bone thickness for mini-implant placement in Korean. Int J Oral Biol. 2011;36:65-70.
  5. Canan S, Asim OM, Okan B, Ozek C, Alper M. Anatomic variation of the infraorbital foramen. Ann Plast Surg. 1999; 43:613-617.
  6. Agthong S, Huanmanop T, Chentanez V. Anatomical variations of the supraorbital, infraorbital, and mental foramina related to gender and side. J Oral Maxillofac Surg. 2005;63:800-804.
  7. Chung MS, Kim HJ, Kang HS, Chung IH. Locational relationship of the supraorbital notch or foramen and infraorbital and mental foramina in Koreans. Acta Anat (Basel). 1995;154:162-166.
  8. Mwaniki DL, Hassanali J. The position of mandibular and mental foramina in Kenyan African mandibles. East African Med J. 1992;69:210-213.
  9. Yosue T, Brooks SL. The appearance of mental foramina on panoramic radiographs. I. Evaluation of patients. Oral Surg Oral Med Oral Pathol. 1989;68:360-364.
  10. Phillips JL, Weller RN, Kulid JC. The mental foramen III size and position on panoramic radiographs. J Endod. 1992; 18:383-386.
  11. Igarashi C, Kobayashi K, Yamamoto A. Double mental foramina of the mandible on computed tomography images: a case report. Oral Radiol. 2004;20:68-71.
  12. Yoon KW, Kim KR, Woo JH. Anatomical study on the location of the mental foramen in adult Korean mandibles. Korean J Phys Anthropol. 1989;2:11.
  13. Aziz SR, Marchena JM, Puran A. Anatomic characteristics of the infraorbital foramen: a cadaver study. J Oral Maxillofac Surg. 2000;58:992-996.
  14. Kazkayasi M, Ergin A, Ersoy M, Bengi O, Tekdemir I, Elhan A. Certain anatomical relations and the precise morphometry of the infraobital foramen-canal and groove: an anatomical and cephalometric study. Laryngoscope. 2001;111:609-614.
  15. Curight B, Quillopa N, Schubert W. An anthropometric analysis of the key foramen for maxillofacial surgery. J Oral Maxillofac Surg. 2003;61:354-357.
  16. Ngeow WC, Yuzawati Y. The location of the mental foramen in a selected Malay population. J Oral Sci. 2003; 45:171-175.
  17. Kim MK. Head & Neck anatomy, 5th ed., pp 82-101, Dental & Medical Publishing. Seoul, 2011.
  18. Zide BM, Swift R. How to block and tackle the face. Plast Reconstr Surg. 1998;101:840-851.
  19. Gupta T. Localization of important facial foramina encountered in maxillo-facial surgery. Clin Anat. 2008;21: 633-640.
  20. Chrcanovic BR, Abreu MH, Custódio AL. A morphometric analysis of supraorbital and infraorbital foramina relative to surgical landmarks. Surg Radiol Anat. 2011;33:329-335.
  21. Singh R. Morphometric analysis of infraorbital foramen in Indian dry skulls. Anat Cell Biol. 2011;44:79-83.
  22. Song WC, Kim SH, Paik DJ, Han SH, Hu KS, Kim HJ, Koh KS. Location of the infraorbital and mental foramen with reference to the soft-tissue landmarks. Plast Reconstr Surg. 2007;120:1343-1347.
  23. Berge JK, Bergman RA. Variations in size and in symmetry of foramina of the human skull. Clin Anat. 2001;14:406-413.
  24. Phillips JL, Weller RN, Kulid JC. The mental foramen: Part I. Size, orientation and positional relationships to the mandibular second mandibular premolar. J Endod. 1990;16:221-223.
  25. Aktekin M, Celik HM, Celik HH, Aldur MM, Aksit MD. Studies on the location of the mental foramen in Turkish mandibles. Morphologie. 2003;87:17-19.
  26. Kqiku L, Sivic E, Weiglein A, Stadtler P. Position of the mental foramen: an anatomical study. Wien Med Wochenschr. 2011; 161:272-273.