Clinical anatomy of the nerve to the mylohyoid

Choi, Paul J; Iwanaga, Joe; Dupont, Graham; Oskouian, Rod J.; Tubbs, R. Shane

doi:10.5115/acb.2019.52.1.12

Cited by 19 publications

(25 citation statements)

References 29 publications

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“…7 Since MHN supplies only lingual cortical bone, it is supplemental and its blockage cannot anaesthetize the lower molar tooth completely. 43 Microdissection studies proved the presence of both motor and sensory fibres in the MHN. Such sensory fibres of the MHN pass through the communication between the MHN and LN to provide sensory innervation to the tongue.…”

Section: Discussionmentioning

confidence: 95%

“… 45 d. Passes through the lingual foramina in the midline of the mandible (Choi et al, 2019). 43 e. Passes the accessory foramina below the premolars and supplies the premolar teeth (Bennett and Townsend, 2001). 1 f. Communicates with the lingual nerve close to the digastric tendon (Sato et al, 2004).…”

Section: Methodsmentioning

confidence: 99%

“…In 43–50% of the population, terminal branches of the mylohyoid nerve innervate mandibular incisors, premolars and related gingivae (Choi et al, 2019). 43 c. Branch to submandibular gland (Varol et al, 2009). 27 d. nly lower incisors (Bennett and Townsend, 2001).…”

Section: Methodsmentioning

confidence: 99%

“…1 c. Runs in the mandibular canal (Nayak and Soumya, 2020). 45 d. Passes through the lingual foramina in the midline of the mandible (Choi et al, 2019) 43.…”

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confidence: 99%

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<p>Anomalies and Clinical Significance of Mylohyoid Nerve: A Review</p>

Kini¹,

Somayaji²,

Acharya³

et al. 2020

CCIDE

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Background: The mylohyoid nerve is a branch of the inferior alveolar nerve (IAN), which is a branch of the posterior division of the mandibular nerve (MN). It is the source of motor nerve supply to the mylohyoid and anterior belly of the digastric muscle. At times, it provides sensory innervation to the mandibular teeth and skin below the chin. Since the location, anatomical variation and communications of the mylohyoid nerve are varied, it becomes clinically important to have an in-depth knowledge when treating patients for dental and maxillofacial procedures. Such anatomical variations of the mylohyoid nerve innervations may account for failure of the nerve blocks and hence, knowledge is very important for the practitioner. Materials and Methods: A thorough literature search was done using the key words mandibular nerve, communications of the mylohyoid nerve, inferior alveolar nerve, lingual nerve, failure of dental anaesthesia, mylohyoid nerve and dental implants "from the Databases-PubMed, Scopus Embase and Web of Science (years 1952-2020)". Results: The mylohyoid nerve may contain motor and sensory fibres, it may pass through the mylohyoid groove or canal and communicate with other nerves, which is clinically significant. Such anatomical variations may be one of the reasons for the failure of the inferior alveolar nerve block. Conclusion: Awareness of these variations is very significant in planning treatment and avoiding any unnecessary steps. The most frequently encountered anatomic variation of the mylohyoid nerve was innervation of the submental skin and the anterior teeth.

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Section: Discussionmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…1 c. Runs in the mandibular canal (Nayak and Soumya, 2020). 45 d. Passes through the lingual foramina in the midline of the mandible (Choi et al, 2019) 43.…”

mentioning

confidence: 99%

See 2 more Smart Citations

<p>Anomalies and Clinical Significance of Mylohyoid Nerve: A Review</p>

Kini¹,

Somayaji²,

Acharya³

et al. 2020

CCIDE

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“…The sensory function of the TGN is to provide tactile, proprioceptive, and nociceptive afferents from the face and oral cavity while its motor function activates the movement of eight bilateral sets of muscles, including the four muscles of mastication: the masseter, the temporal muscle, and the medial and lateral pterygoids [ 4 ]. The other four muscles are the tensor veli palatini, the mylohyoid, the anterior belly of the digastric and the tensor tympani, all of which are controlled by the motor component of the mandibular division (V3) of the TGN [ 1 , 5 ]. Damage to the TGN by conditions such as a tumor, demyelination, multiple sclerosis or compression can lead to masticatory muscle dysfunction that eventually leads to TMD [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Disuse atrophy of masticatory muscles after intracranial trigeminal schwannoma resection: A case report and review of literature

Elsayed

Shimo

Tashiro

et al. 2020

International Journal of Surgery Case Reports

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Highlights Temporomandibular disorders (TMD) are diseases of the temporomandibular joint and masticatory muscles, and are often difficult to be diagnosed. Determining the cause of facial asymmetry and jaw deviation are quite challenging. The morphologic and functional characteristics of masticatory muscles are maintained by sensory and motor innervation from the trigeminal nerve. Trigeminal schwannoma is a rare benign tumor originating from the Schwann cells. We experienced a case of masticatory muscle disuse atrophy during long-term follow-up after resection of intracranial trigeminal schwannoma.

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Anatomical insights of the mylohyoid for clinical procedures in dentistry

Ryu

Kim

2020

Clinical Anatomy

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Introduction The purpose of this study is to provide useful data by conducting a comprehensive study of the mylohyoid muscle and its related structures. Materials and methods Fifty‐eight mandibles and 30 mylohyoid muscles from Korean adult cadavers were used. The shape and location of the mylohyoid line were analyzed by using digital calipers. The mylohyoid muscle and its herniation were observed using ultrasonography. After dissection, morphometric measurements of the muscle and herniation were conducted. The distribution pattern of the nerve to mylohyoid muscle was confirmed. Results The proportion of the distance between the cementoenamel junction and the mylohyoid line decreased from the mesiolingual cusp of the mandibular first molar (1:0.57) to the distolingual cusp of the mandibular second molar (1:0.41). The mylohyoid muscle was large, thick, and deep in men. Herniation was observed in 16 (53.3%) cases, and it was concentrated in the anterior one‐third (52.2%) of the muscle. The richest arborization of the nerve to mylohyoid muscle was in the middle one‐third (52.9%) of the muscle. Conclusions The results of the mylohyoid line can be applied in the reconstruction of the occlusal plane in edentulous patients. Differences between the sexes should be considered in the morphological characteristics of the mylohyoid muscle. Differential diagnosis of herniation is particularly important in the anterior one‐third of the muscle. In the case of treatment with botulinum toxin in the mylohyoid muscle, it is recommended to inject into the middle one‐third area considering the depth and thickness of the muscle in that area.

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Clinical anatomy of the nerve to the mylohyoid

Cited by 19 publications

References 29 publications

<p>Anomalies and Clinical Significance of Mylohyoid Nerve: A Review</p>

<p>Anomalies and Clinical Significance of Mylohyoid Nerve: A Review</p>

Disuse atrophy of masticatory muscles after intracranial trigeminal schwannoma resection: A case report and review of literature

Anatomical insights of the mylohyoid for clinical procedures in dentistry

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