目的:目的是研究舌骨和舌骨线前方的下颌骨舌骨肌附着的细节,以了解舌下间隙和舌骨之间的位置关系,对于切牙区域的牙种植手术至关重要的知识,以及舌下空间和其他空间之间的交流路线。
方法:在评估是否存在下颌骨前舌骨肌纤维附着时,舌下腺疝,肌束之间的空间也被记录为穿透部位。还计算了这些区域中每个区域的平均肌肉厚度。
结果:在所有样本中,舌骨不仅起源于舌骨线,而且起源于精神棘下方的下颌体中心(下颌联合)的舌面。舌骨肌束在后部最厚,在这之前,他们倾向于变瘦。在前区和中央区注意到通过舌骨的舌下腺疝。但不是在后部。肌肉束之间的渗透在中部区域最常见,在后部区域没有明显的渗透。
结论:这些结果表明,舌骨的功能仅不完全作为隔膜,并且从舌下空间到下颌下空间的交流途径可能存在于舌骨的前肌束和中央肌束中。因此,在前下颌骨种植牙期间的出血并发症可能是严重的问题。舌下血肿有可能通过将舌头压在软腭上进入咽部而损害气道。
OBJECTIVE: The objective was to investigate the details of the attachments of the mylohyoid muscle to the mandible anterior to the hyoid and mylohyoid lines to understand the positional relationship between the sublingual space and the mylohyoid, knowledge that is essential for dental implant surgery in the incisal region, as well as the routes of communication between the sublingual space and other spaces.
METHODS: While evaluating the presence or absence of an anterior mylohyoid muscle fiber attachment to the mandible, sublingual gland herniation, spaces between muscle fascicles were also recorded as sites of penetration. The mean muscle thickness in each of these areas was also calculated.
RESULTS: In all specimens, the mylohyoid originated not only from the mylohyoid line but also from the lingual surface of the center of the mandibular body (the mandibular symphysis) below the mental spines. The mylohyoid muscle fascicles were thickest in the posterior region, and further anterior to this, they tended to become thinner. Sublingual gland herniations passing through the mylohyoid were noted in the anterior and central regions, but not in the posterior region. Penetration between the muscle fascicles was most common in the central region, and no such penetration was evident in the posterior region.
CONCLUSIONS: These results suggest that the mylohyoid functions only incompletely as a septum, and that routes of communication from the sublingual space to the submandibular space may be present in both the anterior and central muscle fascicles of the mylohyoid. Therefore, bleeding complications during dental implant placement in the anterior mandible can be serious issues. There is a potential for sublingual hematoma that could compromise the airway by pressing the tongue against the soft palate into the pharynx.