Anatomy
The masseter muscle arises from three distinct layers in all sides of your face. (You have two masseter muscles, one on the left and one on the proper.) The three layers of the masseter are the superficial layer, the intermediate layer, and therefore the deep layer.
The muscle fibers originate from the zygoma of your skull, also referred to as your cheek bone. The muscle layers then converge and insert onto the ramus of your mandible, or jaw bone.
Nerve innervation to the masseter muscle is via the mandibular division of trigeminal, the fifth nerve. It receives blood supply from the masseteric artery that emerges from the arteria maxillaris in your skull.
Function
The major function of the masseter muscle is to heighten your jaw bone. This brings your teeth together, as within the chewing motion. buy soma online It works with the temporalis and lateral and medial pterygoid muscles to perform this function.
The deep and intermediate fibers of the masseter muscle work to back down your jaw bone, pulling your teeth into an overbite position. The superficial grain of the muscle protrude your jaw, bringing it forward into an underbite position.
The deep fibers of the masseter muscle also function a serious stabilizer of your mandibular joint (TMJ). Once you are clenching your teeth together, it contracts to stay your TMJ within the correct position.
Associated Conditions
Since the masseter is one among the main muscles of mastication, it's often injured or implicated during a sort of conditions round the face and jaw. These may include:
- Temporomandibular joint disorder (TMD)
- Jaw fracture
- Trigeminal neuralgia
- Hypertrophy thanks to bruxism (teeth grinding)
The most common situation affecting the masseter muscle is mandibular joint dysfunction (TMD). Symptoms of TMD may include: 1
- Jaw pain
- Swelling in one or each side of your jaw and face
- Difficulty chewing food
- Clicking or catching sensations in your jaw
If you think you've got TMD, see your dentist or physician directly. They will assess your condition and make recommendations for correct treatment for TMD.
Trauma to your face or jaw may end in injury to the masseter muscle. A sudden force to your jaw may cause the bone to fracture, resulting in severe pain and swelling of your face and jaw, including the masseter muscle.
Trigeminal neuralgia may be a condition causing pain within the face thanks to irritation of your fifth nerve. This condition typically affects the sensory aspect of the nerve, preserving the motor function of the nerve (and masseter muscle).
If you notice any symptoms of pain or adversity chewing, this might be a symbol of masseter and TMJ dysfunction. Visit your physician to urge the proper treatment for your condition.
Rehabilitation
If you've got a jaw condition that affects your masseter muscle, soma online you'll enjoy rehabilitation to regain normal pain free mobility. Rehab considerations for a jaw injury depends upon the explanation for your condition.
Trauma to your jaw and masseter muscle may require a period of immobilization and rest to permit things to heal properly. A jaw fracture is usually treated with surgical fixation of the jaw; you'll not be ready to move it for a couple of weeks while things are healing. Once healed, gentle motion should be began to slowly stretch and strengthen the jaw muscles.
Temporomandibular joint disorders may require a multi-faceted approach to worry. You’ll enjoy physiotherapy to assist alleviate your symptoms and restore normal jaw motion and performance. Treatments may include: 2
- Heat: Hot packs could also be applied to the masseter and jaw to extend circulation, relax the muscle, and reduce pain.
- Massage: Gentle massage to the masseter may help relax a hypertonic muscle and reduce pain. It’s going to also help improve muscle flexibility.
- Range of motion exercises: Gently performing on pain-free range of motion of your jaw may help restore normal opening and shutting of the joint.
- Neuromuscular strengthening exercises: many of us with TMD enjoy restoring normal mobility of the joint in various directions. Rocabado exercises are a selected program to revive normal neuromuscular movement around your TMJ.
- Ice: Application of cold packs to your sore masseter and jaw could also be done to alleviate pain, decrease circulation, and reduce swelling.
- Postural control exercise: there's a connection between your jaw motion and posture. Your masseter muscle and other muscles of mastication work best once you are in optimum posture. Learning to achieve and maintain proper sitting and standing posture could also be a neighborhood of your rehab for TMD.
You may also enjoy employing a mouth guard to properly position your TMJ.3 The night guard is worn while sleeping and keeps your TMJ during a neutral position while you sleep. It also can help prevent grinding of your teeth.
Biofeedback, relaxation training, and stress management can also be wont to alleviate jaw and masseter pain thanks to TMD.2 it's an honest idea to figure closely together with your dentist to make sure that your TMD rehab includes all the required components to revive normal, pain-free motion.
If TMD pain persists, you'll enjoy diagnostic studies to look at your jaw joint.2 resonance imaging (MRI) could also be done to look at the muscles and structures around your TMJ. If a severe problem is found within the joint space, surgery could also be performed to correct the joint structures.
If you're experiencing masseter and facial pain thanks to tic douloureux, you ought to consult a neurologist who focuses on the condition. The right treatment for you'll be medication, and a surgery called microvascular decompression (MVD) could also be done to correct the matter.
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