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KMID : 0355820140350010077
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Korean Journal of Oral Anatomy
2014 Volume.35 No. 1 p.77 ~ p.87
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Relative location of the facial foramina based on the face landmarks
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Lee Myoung-Hwa
Yu Sun-Kyoung
Kim Heung-Joong
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Abstract
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Knowledge of the location of the maxilofacial foramina is esential for the maxilofacial surgery and local anesthesia to avoid nerve injury pasing through these foramina. This study examined the relative location of the supraorbital foramen (SOF), infraorbital foramen (IOF), and mental foramen (MF) based on the face landmarks. Twenty-eight hemifacial cadavers were disected to expose the SOF, IOF, and MF. The distances betwen the bilateral SOFs, the bilateral IOFs, and the bilateral MFs were measured directly on the cadavers using digital Vernier caliper. The location of the SOF, IOF, and MF based on the medial canthus, alare, and cheilion were measured indirectly on the digital photographs using image analyzer software. Statistical analysis was performed using one-way ANOVA with declaration of significant diference when P < 0.05. The distance betwen the bilateral IOFs (57.51 ㎜) was longer than that betwen the bilateral SOFs (51.29 ㎜) and betwen the bilateral MFs (50.64 ㎜). The SOF was located 18.41 ㎜ superior and 9.24 ㎜ lateral to the medial canthus, and the acute angle of ∠P1-MC-SOF (Angle 1) was 25.46˚ superolateraly. The IOF was located 13.0 ㎜ superior and 8.46 ㎜ lateral to the alare, and the acute angle of ∠P2-AL-IOF (Angle 2) was 3.3˚ superolateraly. The MF was located 21.46 ㎜ inferior and 5.18 ㎜ medial to the cheilion, and the acute angle of ∠P3-CH-MF (Angle 3) was 1.48˚ inferomedialy.
In conclusion, this study provides that the data wil be useful in predicting the locations of the SOF, IOF, and MF when used together with hard-tissue landmarks. These results may help to prevent injury of neurovascular bundles in clinical procedure such as local anesthesia and maxillofacial surgery.
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KEYWORD
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Supraorbital foramen, Infraorbital foramen, Mental foramen, Medial canthus, Alare, Cheilion
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