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Surgical and Radiologic Anatomy

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08.05.2018 | Original Article

A simple method to locate mandibular foramen with cone-beam computed tomography and its relevance to oral and maxillofacial surgery: a radio-anatomical study

verfasst von: Mohammad H. Al-Shayyab

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 6/2018

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Abstract

Purpose

The mandibular foramen (MF) cannot be palpated clinically and its location is variable at the medial surface of mandibular ramus. Nevertheless, determining its exact location is very important to the oral and maxillofacial surgeon for the relevant anesthetic and surgical ramus procedures. The aim of this study was to analyze the position of MF using cone-beam computed tomography (CBCT) to help the surgeon in identifying reliable ‘target area’ for the inferior alveolar nerve (IAN) block and ‘safety zone’ for mandibular ramus osteotomies approached extra-orally.

Materials and methods

This radio-anatomical study examined all CBCT radiographs for patients treated over 2 years. Distances from MF to the anterior (A) and posterior (P) borders of the ramus, mandibular incisura (MI), mandibular notch (MN), and mandibular occlusal plane (O) were measured by a reliable examiner, followed by calculation of ratios to determine the horizontal and vertical position of MF. Patients’ details were then recorded. Student’s t test and One-Way-ANOVA test were used to analyze data.

Results

A total of 210 CBCT radiographs were included and belonged to 210 subjects; 91 males (43.3%) and 119 (56.7%) females, with mean age (± SD) of 43.70 ± 19.08 years. The horizontal and vertical positions of MF differed significantly (P < 0.001) according to age, but generally calculated at least 40% of AP and MIMN distances from P and MI, respectively.

Conclusion

This study suggested the ‘40% rule’ to locate the ‘target area’ for IAN block and ‘safety zone’ for ramus osteotomies approached extra-orally.

Afsar A, Haas DA, Rossouw PE, Wood RE (1998) Radiographic localization of mandibular anesthesia landmarks. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 86:234–241. https://doi.org/10.1016/S1079-2104(98)90131-7 CrossRefPubMed

Altunsoy M, Aglarci OS, Ok E, Nur BG, Gungor E, Colak M (2014) Localization of the mandibular foramen of 8–18 years old children and youths with cone-beam computed tomography. J Pediatr Dent 2:44–48. https://doi.org/10.4103/2321-6646.137677 CrossRef

Ashkenazi M, Taubman L, Gavish A (2011) Age associated changes of the mandibular foramen position in anteroposterior dimension and of the mandibular angle in dry human mandibles. Anat Rec 294:1319–1325. https://doi.org/10.1002/ar.21429 CrossRef

Benham NR (1975) The cephalometric position of the mandibular foramen with age. ASDC J Dent Child 43:233–237

da Fontoura RA, Vasconcellos HA, Campos AE (2002) Morphologic basis for the intraoral vertical ramus osteotomy: anatomic and radiographic localization of the mandibular foramen. J Oral Maxillofac Surg 60:660–666. https://doi.org/10.1053/joms.2002.33115 CrossRefPubMed

Daw JL Jr, Michael G, Aitken ME, Patel PK (1999) The mandibular foramen: an anatomic study and its relevance to the sagittal ramus osteotomy. J Craniofac Surg 10:475–479CrossRefPubMed

Devi R, Arna N, Manjunath KY (2003) Incidence of morphological variants of mandibular lingula. Indian J Dent Res 14:210–213PubMed

Ennes JP, Medeiros RM, Grant JC (2009) Localization of mandibular foramen and clinical implications. Int J Morphol 27:1305–1311CrossRef

Fujimura K, Segami N, Kobayashi S (2006) Anatomical study of the complications of intraoral vertico-sagittal ramus osteotomy. J Oral Maxillofac Surg 64:384–389. https://doi.org/10.1016/j.joms.2005.11.009 CrossRefPubMed

10.

Greenstein G, Cavallaro J, Tarnow D (2008) Practical application of anatomy for the dental implant surgeon. J Periodontal 79:1833–1846. https://doi.org/10.1902/jop.2008.080086 CrossRef

11.

Hayward J, Richardson ER, Malhotra SK (1977) The mandibular foramen: Its anteroposterior position. Oral Surg Oral Med Oral Pathol 44:837–843CrossRefPubMed

12.

Hwang TJ, Hsu SC, Huang QF, Guo MK (1990) Age changes in location of mandibular foramen. Zhonghua Ya Yi Xue Hui Za Zhi 9:98–103PubMed

13.

Kanno CM, de Oliveira JA, Cannon M, Carvalho AA (2005) The mandibular lingula’s position in children as a reference to inferior alveolar nerve block. J Dent Child 72:56–60

14.

Kilarkaje N, Nayak SR, Narayan P (2004) Morphology of lingula, coronoid process and the mandibular notch in Indian dry mandibles. Folia Anat Belgrade 31:13–16. https://doi.org/10.16965/ijar.2016.468 CrossRef

15.

Kilarkaje N, Nayak SR, Narayan P, Prabhu LV (2005) The location of the mandibular foramen maintains absolute bilateral symmetry in mandibles of different age-groups. Hong Kong Dent J 2:35–37

16.

Kumar MP, Lokanadham S (2013) Sex determination and morphometric parameters of human mandible. Int J Res Med Sci 1:93–96. https://doi.org/10.5455/2320-6012.ijrms20130511 CrossRef

17.

Lima DS, Andrade A, Figuerêdo EA et al (2011) Estudo anatômico do forame mandibular e suas relações com pontos de referência do ramo da mandíbula. Rev Bras Cir Craniomaxilofac 14:91–96

18.

Lindh C, Petersson A, Klinge B (1995) Measurements of distances related to the mandibular canal in radiographs. Clin Oral Implants Res 6:96–103. https://doi.org/10.1034/j.1600-0501.1995.060205.x CrossRefPubMed

19.

Madan GA, Madan SG, Madan AD (2002) Failure of inferior alveolar nerve block: exploring the alternatives. J Am Dent Assoc 133:843–846. https://doi.org/10.14219/jada.archive.2002.0298 CrossRefPubMed

20.

Malamed SF (2015) Handbook of local anesthesia. 6th edn. Elsevier, St. Louis 2015, pp 311, 20, 23, 226–236, 52–54 (inside front cover)

21.

Menke RA, Gowgiel JM (1979) Short-needle block anesthesia at the mandibular foramen. J Am Dent Assoc 99:27–30. https://doi.org/10.14219/jada.archive.1979.0214 CrossRefPubMed

22.

Nicholson ML (1985) A study of the position of the mandibular foramen in the adult human mandible. Anat Rec 212:110–112. https://doi.org/10.1002/ar.1092120116 CrossRefPubMed

23.

Oguz O, Bozkir MG (2002) Evaluation of location of mandibular and mental foramina in dry, young, adult human male, dentulous mandibles. West Indian Med J 51:14–16PubMed

24.

Park HS, Lee JH (2015) A comparative study on the location of the mandibular foramen in CBCT of normal occlusion and skeletal class II and III malocclusion. Plast Reconstr Surg 37:25. https://doi.org/10.1186/s40902-015-0024-2 CrossRef

25.

Reitzik M, Griffiths RR, Mirels H (1976) Surgical anatomy of the ascending ramus of the mandible. Br J Oral Surg 14:150–155CrossRefPubMed

26.

Russa AD, Fabian FM (2014) Position of the mandibular foramen in adult male Tanzania mandibles. Ital J Anat Embryol 119:163–168PubMed

27.

Sairam V, Geethamalika MV, Kumar PB, Naresh G, Raju GP (2016) Determination of sexual dimorphism in humans by measurements of mandible on digital panoramic radiograph. Contemp Clin Dent 7:434–441. https://doi.org/10.4103/0976-237X.194110 CrossRefPubMedPubMedCentral

28.

Scarfe WC (2005) Imaging of maxillofacial trauma: evolutions and emerging revolutions. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 100:S75-96. https://doi.org/10.1016/j.tripleo.2005.05.057 CrossRefPubMed

29.

Trost O, Salignon V, Cheynel N, Malka G, Trouilloud P (2010) A simple method to locate mandibular foramen: preliminary radiological study. Surg Radiol Anat 32:927–931. https://doi.org/10.1007/s00276-010-0645-1 CrossRefPubMed

30.

Tsai HH (2004) Panoramic radiographic findings of the mandibular foramen from deciduous to early permanent dentition. J Clin Pediatr Dent 28:215–219. https://doi.org/10.17796/jcpd.28.3.gt48634942137234 CrossRefPubMed

Titel: A simple method to locate mandibular foramen with cone-beam computed tomography and its relevance to oral and maxillofacial surgery: a radio-anatomical study
verfasst von: Mohammad H. Al-Shayyab
Publikationsdatum: 08.05.2018
Verlag: Springer Paris
Erschienen in: Surgical and Radiologic Anatomy / Ausgabe 6/2018
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-018-2015-3

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A simple method to locate mandibular foramen with cone-beam computed tomography and its relevance to oral and maxillofacial surgery: a radio-anatomical study

Abstract

Purpose

Materials and methods

Results

Conclusion

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