Damage to the mandibular nerve during tooth implantation

December 21, 2020

Trigeminal neuralgia (facial or trigeminal neuralgia) is a disease of the peripheral nervous system characterized by short-term, intense and repeated pain in the area of ​​innervation of one or more branches of the nerve.

Trigeminal neuralgia (facial or trigeminal neuralgia) is a disease of the peripheral nervous system characterized by short-term, intense and repeated pain in the area of ​​innervation of one or more branches of the nerve. The nerve received its name due to the presence of three branches in it: ophthalmic (upper), maxillary (middle), mandibular (lower).

It is extremely difficult to independently diagnose pathology due to the nonspecific symptoms inherent in many diseases (for example, dental ones). That is why, if any unpleasant sensations occur in the facial area, it is necessary to promptly contact a neurologist. Trigeminal neuralgia most often affects adults, especially the elderly, and is more common in women.

The pathogenesis is not completely clear. It is currently believed that the disease occurs as a result of compression of the trigeminal nerve (at the site of its exit from the pons) by tortuous, pathologically altered vessels or, less commonly, by a tumor. As a result of compression, the nerve root adjacent to the cerebral pons undergoes demyelination. This reason explains up to 80-90% of cases of the disease. Rarely, patients with multiple sclerosis develop a plaque in the area of ​​the sensory nucleus of the trigeminal nerve, which leads to neuralgia.

The factors that most often provoke the development of the disease include: pinching of the trigeminal nerve (temporomandibular joint injuries, congenital anomalies in the development of bone structures of the skull, tumors of the brain and facial area, pathological vasodilatation, etc.); viral nerve damage (herpetic infection, polio); odontogenic infections (“unsuccessful” filling or extraction of teeth or other surgical interventions in the face and oral cavity, reaction to anesthesia of dental canals, dental flux).

Causes of inflammatory damage to the trigeminal nerve

Factors contributing to inflammation of the trigeminal nerve are:

• surgical interventions on the jaw bones;
• fractures of the base of the skull, lower and upper jaws;
• tumors;
• complex tooth extraction;
• hypothermia;
• surgery on the maxillary sinus;
• improperly administered anesthesia;
• incorrectly performed dental prosthetics;
• metabolic disorders;
• the presence of foreign bodies that irritate the nerve trunk or injure nerve endings;
• bacterial or viral infection;
• various types of intoxication of the body;
• hypovitaminosis;
• weakening of the immune system.

What is arthrosis of the TMJ

Arthrosis of the TMJ is a disease that destroys the components that form the joint (Greek arthron joint, suffix oz - destruction). First, the articular cartilage is destroyed, then the following occurs in the articular elements:

• proliferation (tissue growth);
• calcification (calcium redistribution) and ossification of cartilage;
• hyperplastic (proliferation) and destructive (destruction) processes in the epiphyseal parts of bones (these are the rounded ends of the bones - the head and fossa);
• reactive-inflammatory (from the word “response”) changes in the synovial membrane;
• fibrosis (overgrowth of connective tissue) with hardening of the joint capsule, which affects nearby muscles, tendons and ligaments.

With the destruction of cartilage, its shock-absorbing functions are reduced, and impacts are transmitted directly to the bone. Patients involuntarily increase the destruction by reacting emotionally to events - they clench their teeth, not daring to say too much, with a “stony” face and tense muscles, compressed blood vessels and stress hormones, they face the blows of fate. The amount of nutrients decreases, the TMJ would be happy to recover - but there is no building material. Instead, the epiphyseal sections of the bone are flattened under pressure, and bone growths appear on them.

Then the joint enlarges, compressing the nerve endings located nearby. The pain radiates to the ear, back of the head, and teeth. When the jaw moves, a specific clicking sound appears (occlusion-articulation syndrome).

ICD codes M.19. 0 (1, 2, 8 – last digit changes)

Symptoms of trigeminal neuritis

The maxillary trigeminal nerve consists of three types of nerve fibers:

• vegetative;
• motor;
• sensitive.

The symptomatic picture of neuritis may vary depending on which fibers were affected by the inflammatory process.

Damage to sensory fibers

In particular, with inflammation of the sensory fibers, the patient may complain of a tingling sensation, numbness, and weakened sensitivity in the area innervated by the trigeminal nerve.

Damage to motor fibers

When motor fibers are damaged, there is a partial or complete decrease in strength in the innervated muscles, their atrophy and deterioration of tendon reflexes.

Damage to vegetative fibers

When the vegetative fibers are inflamed, the patient experiences cyanosis and swelling of the skin, dryness and thinning of the skin, and the potential risk of developing a trophic ulcer increases.

First signs of damage

The first symptoms of nerve damage are discomfort in the gums, cheeks, and lower lip. Manifestations of the problem are:

• paresthesia, that is, a change in the level of sensitivity without pain;
• dysesthesia with pain in the affected area, a feeling of “pins and needles”, changes in the general sensitivity of the area;
• anesthesia - complete loss of sensation in a certain area.

In some cases, the lingual nerve, which runs from the side of the tongue into the gum tissue, may be affected. This is usually observed as a result of the removal of "eights" (in approximately 2.1% of all cases). When implanted, this nerve is affected less frequently. If this situation occurs, the following symptoms appear:

• salivation becomes profuse;
• involuntary biting of the tip of the tongue appears;
• diction disorders;
• burning sensation, numbness in the tongue;
• loss, change in taste;
• swallowing is impaired.

In 90% of cases, the problems go away on their own within seven to ten weeks; no special treatment is required.

Pain due to inflammation

In addition, a disease such as inflammation or neuritis of the facial trigeminal nerve makes itself felt with attacks of pain of a very diverse nature:

• cutting,
• burning,
• pricking,
• tearing
• shooting, etc.

In this case, the area of ​​pain does not always correspond to the area of ​​innervation and can spread to the lower jaw, cheeks and chin.

Pain may be accompanied by:

• muscle spasms (facial, chewing),
• the appearance of nasal discharge,
• development of hypersalivation,
• increased lacrimation.

Lack of sensation in the tongue, lips and chin

With inflammatory damage to the trigeminal nerve, not only the entire nerve can be damaged, but also its individual branches. This is why numbness and pain can occur in various areas of the face. For example, when the lingual branch of the nerve is inflamed, patients complain of pain and sensitivity disturbances in the anterior part of the tongue, and when the mental branch is damaged, in the area of ​​the lips and chin.

Pain when laughing, chewing, brushing teeth and shaving

Pain due to neuritis of the maxillary trigeminal nerve can intensify with touching, chewing, laughing and with changes in temperature. That is why patients, trying to prevent the recurrence of painful attacks, avoid excessive mobility and prolonged conversations, and refuse brushing their teeth and shaving.

Types of neuralgia

Neuralgia that develops as a result of viruses and other diseases is called secondary. Primary or idiopathic is a disease caused by compression of a nerve. According to localization, it can be unilateral or bilateral. With unilateral neuralgia, one branch of the nerve is affected, with bilateral neuralgia, several.

According to the nature of the disease, it can be acute or chronic. With acute neuralgia, the patient experiences frequent and severe pain. If the pathology is not treated, it goes into a chronic stage, when exacerbation is replaced by periods of remission.

Postherpetic neuralgia develops after herpes and differs from the classic nature of the pain, which may not go away for several hours. An atypical form of neuralgia is a psychosomatic disease, which can be triggered by stress, depression, and nervous exhaustion.

Methods for diagnosing neuralgia

The disease is diagnosed using different methods that make it possible to establish its cause:

• visual examination and questioning of the patient;
• radiography;
• MRI of the head;
• biochemical studies of blood and urine;
• electromyography.

To clarify the diagnosis, the neurologist often turns to doctors of other specialties - otolaryngologist, ophthalmologist, orthodontist. This is done to exclude diseases for which the same symptoms are typical.

Drug treatment of neuralgia

Effective treatment is only possible with the use of a comprehensive drug regimen. Anticonvulsants are prescribed first. Antihistamines and local analgesics are sometimes added to them to relieve acute attacks of pain. The deficiency of gamma-aminobutyric acid will be compensated by phenibut and similar neotropic drugs. In case of exacerbation, antidepressants may be prescribed. If the disease is caused by a viral infection, the patient is prescribed non-steroidal antiviral and antibacterial drugs.

Other treatments

To eliminate pain, physiotherapeutic procedures are prescribed: acupuncture, magnetic therapy, ultraphonophoresis. A good addition to drug treatment is head and face massage. If conservative treatment methods do not bring the desired effect, the patient may be prescribed a minimally invasive operation - microsurgical decompression, radiosurgery or percutaneous destruction.

Trigeminal neuralgia is not only painful, but also causes problems with the patient’s communication abilities. Constantly expecting attacks of pain, a person isolates himself from others, withdraws into himself, becomes irritable and depressed. The prognosis for treatment is favorable. The chances of a full recovery increase when the patient consults a doctor at an early stage of the development of neuralgia, when the first symptoms appear.

Treatment of neuritis of the maxillary trigeminal nerve

Therapy

The treatment program for trigeminal neuritis is drawn up taking into account the causes of the disease and its clinical signs. The main goals of treatment are:

• achieving a sensitizing effect;
• fight against bacterial and viral infection;
• increasing the body's immune forces;
• elimination of swelling of the nerve trunk;
• restoration of natural adaptive and compensatory reactions;
• normalization of the patency of nerve impulses.

Healing procedures

The set of procedures aimed at blocking the inflammatory process and eliminating all manifestations of neuritis includes:

• antibacterial therapy;
• antiviral therapy;
• elimination of factors contributing to the occurrence of intoxication;
• removal of tumor-like neoplasms or dissection of adhesions compressing the nerve;
• prescribing vitamin and mineral complexes to the patient;
• stimulation of nerves and muscles;
• acupuncture;
• physiotherapy (electrophoresis, phonophoresis, UHF, ultrasound, paraffin therapy).

People suffering from trigeminal neuritis are advised to regularly visit dental clinics and have their oral cavity sanitized.

Causes of arthrosis of the temporomandibular joint

Arthrosis can be triggered by a one-time injury (compression, blow, bruise), as a result of which cracks and erosions appear on the articular surfaces. The disease is caused by a fracture of the condyle and condylar process if the fusion is incorrect.

Other reasons:

• prolonged stress;
• consequence of acute traumatic arthritis;
• birth trauma (arthrosis develops due to improper application of forceps);
• underdevelopment of the jaw (microgenia);
• sudden removal of molars (accident, fight);
• errors during dental prosthetics;
• impaired coordination of muscle contractions during dislocation and subsequent sharp (jerky, zigzag, circular) movements of the jaw;
• complete absence of teeth;
• deep bite;
• introduction of drugs into the joint cavity (for example, hydrocortisone, glucose solutions, novocaine).

Structure of the TMJ

Etiological factors of arthrosis (without which the disease does not develop):

• infections;
• metabolic disease;
• injuries;
• atherosclerosis of the terminal branches of blood vessels;
• prolonged spastic contraction of the lateral pterygoid muscle (responsible for moving the jaw forward and to the side).

Even children are diagnosed with TMJ arthrosis. In newborns, the disease develops as a result of birth trauma. Dysfunction in the joint due to various malocclusions is observed in 40% of children from 4 to 14 years old, but in only 1% x-rays reveal coracoid (myogenic) arthrosis.

During menopause, the likelihood of developing arthrosis due to endocrine disorders increases. With age, it is possible to develop senile, i.e. invaluable arthrosis, when cartilage tissue cannot recover, dries out and collapses.

At risk are people whose professional activities involve inadequate load on the joint (violinists), or those suffering from spasms of the masticatory muscles (bruxism).

Our team of doctors

Maxillofacial surgeon, Implantologist

Bocharov Maxim Viktorovich

Experience: 11 years

Dental surgeon, Implantologist

Chernov Dmitry Anatolievich

Experience: 29 years

Orthopedist, Neuromuscular dentist

Stepanov Andrey Vasilievich

Experience: 22 years

Endodontist, Therapist

Skalet Yana Alexandrovna

Experience: 22 years

Orthopedic dentist

Tsoi Sergey Konstantinovich

Experience: 19 years

Endodontist, Therapist

Akhmeeva Elena Petrovna

Experience: 22 years

Dentist-orthodontist

Enikeeva Anna Stanislavovna

Experience: 3 years

General clinical recommendations and prevention

With arthrosis of the temporomandibular joint, it is necessary to reduce the load on the joint. To do this, you need to restore the integrity of the dentition and periodically wear braces. If you are involved in (and cannot quit) contact sports (boxing, martial arts), be sure to wear sports mouthguards.

To restore blood circulation in the joint, it is recommended to slowly (!) open and close your mouth (without sudden or lateral movements).

You will also have to get rid of habits that create additional stress on the joint:

• chew gum vigorously;
• support your cheek with your palm;
• chew seeds, nuts, hard cartilage.

Osteoarthritis of the jaw joint is called a disease of suppressed emotions. The illness can be a consequence of divorce, dismissal, or critical life situations. The most severe forms develop in nice and non-conflict people who keep their own emotions to themselves. You need to learn to enjoy life and stop seeing the world in gray colors.

Causes

Trigeminal neuropathy can be associated with a variety of conditions. Neuropathy can be caused by blood vessel compression on the trigeminal nerve as it exits the brainstem. This compression causes the protective covering around the nerve (myelin sheath) to wear or become damaged. Symptoms of trigeminal neuropathy can also occur in patients with multiple sclerosis, a disease that damages the myelin sheath of the trigeminal nerve. Rarely, symptoms of neuropathy may be due to nerve compression by a tumor or arteriovenous malformation. Damage to the trigeminal nerve (possibly as a result of oral surgery, stroke, or facial trauma) can also lead to neuropathic pain.

Symptoms of TMJ arthrosis

Information about arthrosis of the temporomandibular joint on the Internet is 50% far-fetched descriptions of arthrosis of large joints, 30% is outdated data and obvious nonsense. And only 20% is true. Alas, texts are written by people without medical education, copying not from special educational literature or monographs, but from each other. Therefore, trust only trusted sources, and treat your health where there are no such ignorant things on the clinic websites.

First signs

A person may assume that he has arthrosis of the jaw when, after visiting doctors and following their recommendations, pain in the back of the head, ear, when chewing, hearing loss on one side, clicking, etc. does not go away.

Due to the structural features of the joint, the body manages to turn on the compensatory mechanism, so there is no long-term aching pain; due to the medications taken, it successfully disappears for a while.

Obvious symptoms

There are only 2 obvious symptoms (but it is also impossible to say 100% that this is arthrosis):

• displacement of the jaw to the side;
• pain when chewing.

You need to see a doctor immediately.

Home remedies

Before treating trigeminal neuralgia at home, you should consult a doctor, since many remedies can only worsen the situation. If the specialist allows it, it is also possible to use various home recipes.

According to recommendations for trigeminal neuralgia, it is worth consuming orally or lubricating the affected side with birch sap. You need to drink 4-5 glasses per day. Heated buckwheat folded in cotton cloth will help relieve pain. The compress is made 2 times a day, keeping it at the site of inflammation until it cools down. At home, it is useful to massage the sore area: rub, stroke and lightly knead the area of ​​inflammation.

How to deal with pathology?

Therapeutic methods for getting rid of the disorder are complex. The main task is to get rid of the source of neuralgia. Depending on the pathogen causing the disease, antimicrobial, antiviral drugs, antibiotics, antihistamines are used to rid the body of toxic substances. At the initial stage, treatment of inflammatory foci, relief from chronic ailments, and restoration of endocrine functionality are carried out. If the anomaly is caused by alcohol addiction, comprehensive treatment is required. At this stage, you will need the help of highly specialized specialists who are competent in treating the affected area or organ.

If the cause of inflammation of the nerve fibers is tumor, adhesive, or cystic objects, surgical intervention and removal of the pathogenic formation are indicated. To reduce and get rid of pain, local neuronal blockers and analgesics are prescribed. If the restoration measures taken are ineffective, a decision is made to completely block the affected nodes with special medications.

As supportive, accompanying therapy, medications are prescribed aimed at restoring the functionality of the vascular system. On the eighth day of treatment, metabolic agents (vitamin-containing complexes) are introduced into the treatment course. To relieve symptoms, it is recommended to take antidepressants, mild sedatives, and non-narcotic tranquilizers. It is possible to use laser physiotherapy and acupuncture. These types of treatment become the main ones when it is impossible (contraindications) to use medications.

Auxiliary but effective techniques include the use of estuary mud, the introduction of aloe extract, and attending physiotherapeutic sessions (electrophoresis, galvanization, inductothermy, etc.).

Myths and dangerous misconceptions in treatment

Due to the fact that neuralgia does not affect the general condition of the body, many patients postpone visiting a doctor and treating the trigeminal nerve. In fact, this is the wrong approach, since the disease can lead to paralysis and muscle paresis. In addition, it has a significant impact on psychological and social aspects of life.

No less important is the fact that painkillers for trigeminal neuralgia provide only a temporary effect. Over time, anticonvulsant medications may also stop working as they become addictive. Therefore, you should not abuse medications. They only relieve the symptoms of neuralgia, and its cause can only be identified by a qualified specialist.

Diagnosis of the disease

Modern medicine has in its arsenal many diagnostic techniques that make it possible to determine the type of neuralgia and the cause of its occurrence:

• visual examination and questioning of the patient;
• X-ray of the jaw;
• MRI of the brain and blood vessels;
• laboratory analysis of urine and blood;
• electromyography.

Diagnosis is carried out by a neurologist, but additional examinations by other specialists are often required: dentist, ophthalmologist, otolaryngologist. Particular attention is paid to differential diagnosis, since neuralgia may resemble other diseases in its symptoms, in particular glaucoma, otitis media, ethmoiditis, Slader syndrome, etc.