Umeboshi wrinkles on the chin that are caused by putting pressure on the mouth such as sticking out the lips and aging are caused by the mentalis muscle, which is one of the chin muscles . By using botulinum injection, which suppresses muscle movement, and suppressing the movement of mentalis muscle, it can be expected to improve umeboshi wrinkles on the chin .
However, the effects of botulinum injections do not last a lifetime. Confirming the duration of botulinum injection and the recommended frequency of treatment in advance will lead to a satisfactory treatment effect.
In addition, there are risks and side effects to the treatment of botulinum injection, so you can receive the treatment with confidence by checking before the treatment.
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Umeboshi wrinkles on the chin are caused by the contraction of the mentalis muscle in the lower chin .
Human muscles include voluntary muscles that move consciously and involuntary muscles that move unconsciously like the heart and stomach, and the mentalis muscle that causes umeboshi wrinkles on the chin. Is a voluntary source.
The mentalis muscle is one of the muscles used to move the lower jaw and lower lip, and is conscious when making facial expressions related to the lips, such as when chewing food or sticking out the lips to express dissatisfaction. I am moving it.
Mentalis muscle is a muscle that can be trained by putting pressure on or pulling out the mouth such as the lips, and it is said that training will prevent chin sagging, but if you train too much, the mentalis muscle will develop too much and it will be a daily routine. It is said that the muscles continue to be tense and that chin-dried wrinkles occur even if you do not put pressure on your lips .
When the upper and lower front teeth are exposed, which is the so-called gobo mouth, it is more difficult to close the mouth than when the front teeth are not exposed, so it is necessary to contract the mentalis muscle more when closing the mouth. Therefore, it is said that the mentalis muscles are more likely to develop and umeboshi wrinkles are more likely to occur than when the front teeth are not exposed.
Since botulinum injection has a function of suppressing muscle movement, by injecting into the developed mentalis muscle, it relieves the tension of the mentalis muscle and suppresses the movement , leading to improvement of dried chin wrinkles .
Three layers of skin are involved in aging-related umeboshi wrinkles on the chin. Human skin is classified from the outside into the epidermis layer, dermis layer, and subcutaneous tissue, and there are muscles under the subcutaneous tissue.
Since the subcutaneous tissue is mainly made of fat, the thickness of the subcutaneous tissue varies greatly among individuals, but the individual differences between the epidermis layer and the dermis layer are not so large. There is research data that the epidermis layer of the lower jaw is 0.1 mm to 0.3 mm thick and the dermis layer is 2.0 mm to 3.0 mm thick.
As you can see from the data, most of the skin is the dermis layer, except for the fatty subcutaneous tissue. Therefore, it is said that the dermis layer is deeply related to the elasticity of the skin.
The dermis layer is mainly made of collagen, elastin and hyaluronic acid. Collagen is stretched around the dermis layer in a mesh pattern, and elastin bundles collagen so that the mesh does not come loose. Hyaluronic acid, which can retain a large amount of water between collagen and elastin, fills the skin like a cushion, giving the skin elasticity.
However, with aging, the production of collagen, elastin, and hyaluronic acid tends to decline and decrease. It is said that when collagen, elastin, and hyaluronic acid decrease, the network that stretches around the dermis layer collapses, losing elasticity and reducing the thickness of the dermis layer.
It is said that when the dermis layer becomes thin, the distance from the mentalis muscle to the epidermis becomes short, and when the dermis layer is thick, wrinkles occur even if the mentalis muscle contracts to the extent that umeboshi wrinkles on the chin do not occur .
Studies have also shown that muscles atrophy with age, and mentalis muscles also atrophy with age. The atrophied mentalis muscles are constantly contracted and tense without being conscious, so it is said that umeboshi wrinkles occur even if you do not put pressure on your mouth .
By using botulinum injection, the atrophy of the mentalis muscle can be alleviated and the movement can be suppressed, so it can be expected to improve the umeboshi wrinkles on the chin, but it is said that the effect will be less than when the dermis layer is thick. I have. Therefore, it is said that a synergistic effect can be expected to improve the umeboshi wrinkles on the chin by simultaneously injecting hyaluronic acid that physically thickens the dermis layer .
A protein toxin called botulinum toxin produced by Clostridium botulinum, which is one of the causes of food poisoning, is a component of botulinum injection .
Botulinum toxin is divided into 7 types, A to G, and the types that affect humans are mainly called A and B. If the concentration of botulinum toxin is high, symptoms of food poisoning such as paralysis of the limbs and paralysis of the muscles used for breathing may occur, but by diluting the concentration of botulinum toxin, the muscles at the injection site Only the work of can be suppressed .
It is said that by injecting a drug with a diluted concentration of botulinum toxin by botulinum injection, wrinkles caused by muscle contraction and ella caused by muscle development can be improved .
Human muscles can be moved by sending instructions from the brain and spinal cord to the nerves that stretch throughout the body . Motor nerves are used when instructing muscles to move.
When instructed to move muscles from the brain or spinal cord, the nerve cells of the motor nerves synthesize a neurotransmitter called acetylcholine, which is a substance that instructs the muscle tissue to contract from the motor nerves. Synthesized acetylcholine is released from nerve cells and reaches muscle tissue, causing muscle contraction .
Botulinum toxin , the active ingredient in botulinum injection, inhibits the release of acetylcholine, which is necessary for muscle movement, from nerve cells and suppresses muscle contraction.
However, botulinum injections do not block the release of all acetylcholine because they do not have high levels of botulinum toxin. Therefore, the necessary muscle contraction is possible, and the injection of botulinum into the umeboshi wrinkles on the chin does not cause the mouth to close or the chin to move.
It is said that the effect of the botulinum toxin toxin is affected within 2 to 3 days after the botulinum injection is performed, and it weakens over time and eventually disappears.
There are two types of botulinum toxin that affect humans, type A and type B, but the time it takes for the type to stop affecting muscles varies. Type A is said to affect muscles for 3 to 4 months, and type B for 1 to 2 months .
When botulinum toxin no longer affects the muscles, muscle movement is restored. Therefore, it is said that botulinum injection requires regular treatment .
After one treatment, it is recommended to perform the next treatment within 3 to 4 months when the effect of botulinum toxin expires. However, it is not recommended to perform the procedure once and within 3 months. If you want to receive treatment on a regular basis, it is safe to consult with your doctor to decide the next treatment date.
In aesthetic medicine, we mainly use drugs using type A botulinum toxin, which is said to have a long-lasting effect . Type A botulinum toxin preparations are developed and sold by various manufacturers in Japan and overseas.
There are many types A botulinum toxin preparations, but only Botox, which is developed and sold by Allergan, Inc. of the United States, is a drug approved by the Ministry of Health, Labor and Welfare, and is manufactured, stored, and transported under strict control.
If you are approved by the Ministry of Health, Labor and Welfare, you will be eligible for relief benefits under a public system called the phytotoxicity damage relief system in the unlikely event of health damage due to side effects.
* Side effect relief benefits do not cover all health hazards.
The injection needle has a unit of needle thickness called G (gauge), and it is said that the larger the G number, the thinner the needle, and the thinner the needle, the less pain you feel during injection .
In general, 24G to 26G injection needles are used for blood collection and infusion in hospitals, but in cosmetic medicine, 30G to 34G injection needles are often used to make pain less noticeable. .. In addition, with the development of manufacturers, the development of finer needles is underway, and it is said that needles that do not hurt will be released in the future.
Even with botulinum injection, many medical institutions use fine needles of 30G to 34G or 34G or more , and the pain is considered to be mild . In addition, since the chin is considered to be a place in the face where pain is less likely to be felt, it is said that injection of botulinum into dried plum wrinkles is less painful than other parts of the face.
If you are vulnerable to pain and anxious, you can further reduce the pain by performing surface anesthesia with an anesthetic cream . If you are uncertain, please check with your medical institution in advance which gauge of injection needle to use and whether anesthetic cream can be used for treatment.
Redness may appear on the injected site for 2 to 3 days, but it can be covered with makeup. Makeup is possible immediately after the treatment on the day.
If you have had a treatment in the past, please check the time and dose of the treatment in advance and tell your doctor at the time of consultation and counseling.
Depending on the number and dose of botulinum injections, there may be antibodies to botulinum toxin . If you do not declare that you have been treated in the past, it is more likely that you will not get the desired effect .
1) Medical examination and counseling
The doctor will check your medical history and physical condition to see if botulinum injection is possible. If you have any questions, risks, or side effects, please check and be convinced at the time of the examination before performing the treatment.
2) Cleansing / washing face
Remove make-up, wash your face and clean the injection site.
If you are worried about pain, give cream anesthesia. Wait 20 to 30 minutes for the effect of cream anesthesia to appear. Make sure the anesthesia is working and wipe off the cream.
I will inject a botulinum injection into my chin. The procedure will be completed in about 5 minutes.
The injection area may turn red, so cool it to soothe the skin.
If you need make-up after the treatment, you can do it.
The injection volume of botulinum injection is expressed as a "unit", not as ml or cc.
The botulinum injection formulation is in powder form and is mixed with saline at medical institutions to form an injection solution. Since it is necessary to change the concentration of botulinum toxin, which is a component of botulinum injection, depending on the injection site, the concentration may differ even if the amount of injection solution is the same when expressed in ml or cc. Therefore, the amount of powdered botulinum preparation is expressed as a unit so that the concentration of botulinum injection can be known .
There is a tendency to increase the amount of dried umeboshi on the chin from 10 units depending on the condition of the facial muscles. The price varies depending on the amount of injection and the botulinum preparation used, but for 10 units of botulinum injection , the price is 30,000 to 50,000 yen .
Umeboshi wrinkles become noticeable not only with the development of mentalis muscle but also with aging. Human skin is divided into the epidermis layer, dermis layer, and subcutaneous tissue from the outside, and there are muscles under the subcutaneous tissue. There is data that the epidermis and dermis layers become thinner with age, and as the epidermis and dermis layers become thinner, the distance from the epidermis to the muscles becomes shorter.
When the epidermis layer and dermis layer of the chin are thick and thin, even if the amount of contraction of the mentalis muscle is the same, the appearance of the umeboshi wrinkles on the chin is different. In addition, muscles atrophy with age, so muscles contract without being aware of it. Therefore, it is said that umeboshi wrinkles occur even if there is no change in facial expression.
It is said that the thinner the epidermis and dermis, the more noticeable the umeboshi wrinkles on the chin due to slight changes in facial expressions and muscle atrophy . Therefore, the expected effect may not be obtained even if the botulinum injection is performed.
However, it is possible to physically thicken the dermis layer by injecting hyaluronic acid into the dermis layer. By injecting botulinum to relieve mentalis muscle atrophy and suppress movement, and by physically thickening the dermis layer with hyaluronic acid, a synergistic effect can be expected on dried plum wrinkles that have become noticeable with aging .
If you try to close your mouth from a state where the upper and lower front teeth called the gobo mouth are protruding and it is difficult to close the mouth, the mentalis muscle that is the cause of the umeboshi wrinkles on the chin develops. Therefore, it is said that umeboshi wrinkles are more likely to occur on the chin than those who do not have a gobo mouth.
By correcting the upper and lower anterior teeth with orthodontics, the so-called protruding teeth can be improved and the mouth can be closed more easily, so the development and contraction of the mentalis muscle can be suppressed , leading to improvement of dried plum wrinkles .
Orthodontics have the disadvantage that the treatment period is long, such as several years, and that the treatment cost exceeds 1 million yen depending on the condition of the dentition. However, there is also the advantage that the appearance of the mouth can be changed by correcting the dentition and improving the gobo mouth.
When injecting botulinum injections into dried umeboshi on the chin, the drug is not injected in only one place. Injections are given in small amounts at different locations so that the effect of botulinum toxin appears on the entire mentalis muscle, which is the cause of dried plum wrinkles.
However, if you do not know the condition of the facial muscles and the condition of the mentalis muscles, there is an increased risk that the movements of the mentalis muscles will differ from side to side or up and down even if the injection location is changed and botulinum is injected. If you are a doctor who is familiar with anatomy, you can receive the treatment with confidence.
In addition, when performing botulinum injection, there is a risk of bacterial infection if bacteria enter through the injection port. It is safe to choose a medical institution that has thorough hygiene management to avoid the risk of bacterial infection.