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KMID : 1237720200530040512
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Anatomy & Cell Biology
2020 Volume.53 No. 4 p.512 ~ p.515
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A rare case of trifid mandibular canal with bilateral retromolar foramina
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Do Quang
Shen Daniel
Ohyama Hiroe
Tubbs R. Shane
Iwanaga Joe
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Abstract
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There are many reported anatomical variations of the mandibular canal. Consequently, there is great variation in the retromolar area, such as the quantity, size, and location of the retromolar foramen (RMF), the bony entrance of the retromolar canal (RMC). These variations allow for different accessory innervations to the mandibular molars and their adjacent buccal tissue because the RMC contains neurovascular bundles. Consideration of these anatomical variations is crucial for avoiding complications in anesthesia, implant placement, and surgery. However, the rarer canal types are often only imaged by computed tomography (CT) or cone beam computed tomography (CBCT). We present a rare case with bilateral RMF and a unilateral trifid mandibular canal in a cadaver.
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KEYWORD
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Mandible, Oral surgery, Anatomy, Anatomic variation, Cadaver
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