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Fig. 2 | BMC Oral Health

Fig. 2

From: Three-dimensional assessment of the anterior and inferior loop of the inferior alveolar nerve using computed tomography images in patients with and without mandibular asymmetry

Fig. 2

Reference planes for distance measurement of the anterior loop of inferior alveolar nerve (ALIAN) (illustrated image). Occlusal plane was defined as a plane passing through L1 and the bilateral mesiobuccal cusp of the maxillary first molar. A plane passing through ManF, MF and perpendicular to occlusal plane was defined as the mandibular sagittal plane. The vertical reference plane (VRP) was defined as a plane passing through MF and perpendicular to occlusal plane and MnSP. The horizontal reference plane (HRP) was defined as a plane passing through MF and parallel to occlusal plane. MBC, Mesiobuccal cusp of maxillary first molar; ManF, Center of the opening of the inferior alveolar nerve canal; MF, Center of the mental foramen; HRP, Horizontal reference plane; VRP, Vertical reference plane

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BMC Oral Health

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