Where is buccal nerve located?
cheek
The BN, commonly referred to as the long buccal nerve by dental clinicians, is a sensory nerve that emerges between the two heads of the lateral pterygoid muscle and then descends toward the cheek along the tendon of the temporalis muscle.
What is buccal nerve?
Introduction. The buccal nerve is the only sensory branch of the anterior mandibular division of the trigeminal nerve. It innervates the major part of the buccal mucosa, the inferior buccal gingiva in the molar area, and the skin above the anterior part of the buccinator muscle.
How many buccal nerves are there?
There are two branches of the nerve—superficial and deep. The superficial branches end in the cheeks and supply sensation to the skin of the cheeks, while the deep branches supply sensation to the lining of the cheeks and gums near the molar areas.
Where does long buccal nerve supply?
The BN (also referred to as the long buccal nerve) is typically described in anatomy textbooks7-9 and anatomical studies10-12 as a sensory branch of the mandibular division of the trigeminal nerve that innervates the entire mucosa of the cheek, as well as the skin around the angle of the mouth.
What is the function of the buccinator?
Buccinator muscle plays a role in stabilizing the denture by gripping the polished surface of the denture. Also, the longitudinal fibers hold the bolus of food between the teeth during mastication.
What happens if the buccal branch of the facial nerve is damaged?
The circumoral musculature, the major part of which is supplied by the marginal mandibular branch of the facial nerve, is the main factor in this expression. Therefore, an injury to this nerve during a surgical procedure can distort the expression of the smile as well as other facial expressions.
How deep is the buccal nerve?
1-2mm
The injection site is distal and buccal to the third molar, with the needle penetrating 1-2mm as the nerve lies directly below the mucosa.
Is the buccinator the cheek?
The buccinator muscle is the major facial muscle underlying the cheek. It holds the cheek to the teeth and assists with chewing. The buccinator muscle is served by the buccal branch of cranial nerve VII, also known as the facial nerve.
Does buccal nerve innervate teeth?
The buccal nerve (long buccal nerve) is a nerve in the face. It is a branch of the mandibular nerve (which is itself a branch of the trigeminal nerve) and transmits sensory information from skin over the buccal membrane (in general, the cheek) and from the second and third molar teeth.
How do you test your buccinator muscle?
Bell tested buccinator muscle strength by having his patient puff out his cheeks against his fingers, noting that air escaped when the weak cheek was compressed. He had the patient laugh and with each “cachinnation the left (weak) cheek was puffed out, flapping like a loose sail” (Bell, 1830, Appendix vii–xiv).
What nerve pierces the buccinator?
the facial nerve
The buccinator muscle is the major facial muscle underlying the cheek. It holds the cheek to the teeth and assists with chewing. The buccinator muscle is served by the buccal branch of cranial nerve VII, also known as the facial nerve.
Can facial nerves be repaired?
There are three basic approaches to facial nerve repair: direct nerve repair, cable nerve grafting or nerve substitution. Direct nerve repair is the preferred option whenever possible and is performed by removing the diseased or affected portion of the nerve, then reconnecting the two nerve ends.
What is the buccinator innervated by?
facial nerve
Innervation. The buccinator is innervated by the buccal branches of facial nerve (CN VII).
Where does the buccinator nerve connect to the facial nerve?
It connects with the buccal branches of the facial nerve on the surface of the buccinator muscle. It gives off many significant branches. The facial nerve (CN VII) also has buccal branches, which carry motor innervation to the buccinator muscle, a muscle of facial expression.
What is the buccinator muscle?
The buccinator muscle is served by the buccal branch of cranial nerve VII, also known as the facial nerve. The buccinator is one of the first muscles that a human can control; the sucking reflex of a baby depends on it.
Where is the buccal nerve located in the body?
Buccal nerve. It courses between the two heads of the lateral pterygoid muscle, underneath the tendon of the temporalis muscle, and then under the masseter muscle to connect with the buccal branches of the facial nerve on the surface of the buccinator muscle .
What is the innervation of the buccinator?
Buccinator is innervated by the buccal branches of facial nerve (CN VII). BLOOD SUPPLY AND LYMPHATICS : The main blood supply to the buccinator comes from three arteries which form extensive anastomotic vascular plexus on the muscle’s lateral surface and within its fibers.