Risk 1. left-right asymmetry
During the operation, it is impossible for doctors to accurately calculate the width of the removed (polished) bone, and the face of the human body itself is not completely symmetrical. If the doctor is unskilled or negligent, the asymmetry of the width on both sides of the face will increase.
Therefore, experienced doctors should not only be familiar with the facial skeletal structure, but also take X-rays (or magnetic vibrations) before operation to clearly understand the unique skeletal structure of the operator.
Risk two. Postoperative hematoma
Every operation will involve a lot of blood vessels and nerves, even if the bleeding is completely stopped, it is easy to bleed after operation. So generally speaking, when the operation is closed, the doctor will put a drainage tube to draw out the congestion in the wound. If the drainage tube is improperly placed, or the bleeding is not done well, a large amount of congestion is likely to accumulate on the face after operation, resulting in hematoma.
Risk 3. dislocation of joint
Mandibular surgery and zygomatic surgery will encounter temporomandibular joint, which is near the temple and is the position where the chin is hung in daily life. Therefore, the doctor should hold the surgeon's chin hard during the operation to keep the temporomandibular joint tense. A little carelessness will lead to joint dislocation, which is often called "jaw drop"
Risk 4. Facial numbness
Mandibular nerve is easily injured when operating on mandible, which directly dominates the perception of lower teeth and lips, and is the chief culprit of postoperative pain. If it is pulled during the operation, it will cause temporary numbness of the lips after the operation. And once it is hurt, it may cause permanent numbness.
Risk 5. Facial muscle distortion
Improper operation, once it hurts the sensory nerve, it will cause numbness, while hurting the facial nerve will involve facial muscle movement. For example, when doing cheekbone surgery, some nerves grow close to the periosteum. Once the doctor fails to separate the nerves from the periosteum, there will be serious consequences such as eyebrow lifting disorder and unilateral frontal muscle paralysis.
-risk explanation of "bone grinding"
Risk 1. Facial numbness
When operating on the mandible, it is easy to hurt the mandibular nerve and directly dominate the perception of the lower teeth and lips. It is the chief culprit of postoperative pain, and if it is pulled during operation, it will cause temporary numbness of the lips after operation. And once it is hurt, it may cause permanent numbness.
Risk two. Facial muscle distortion
The injury of sensory nerve will cause sensory numbness, while the injury of facial nerve will involve the movement of facial muscles. For example, when doing cheekbone surgery, some nerves grow close to the periosteum. Once the doctor fails to separate the nerves from the periosteum, there will be serious consequences such as eyebrow lifting disorder and unilateral frontal muscle paralysis.
Risk 3. left-right asymmetry
During the operation, it is impossible for doctors to accurately calculate the width of the removed (polished) bone, and the face of the human body itself is not completely symmetrical. If the doctor is unskilled or careless, the asymmetry of the width on both sides of the face will increase. Therefore, experienced doctors should not only be familiar with the facial skeletal structure, but also take X-rays (or magnetic vibrations) for the operator before operation to clearly understand its unique skeletal structure.
Risk 4. Postoperative hematoma
Every operation will involve a lot of blood vessels and nerves, even if the bleeding is completely stopped, it is easy to bleed after operation. So generally speaking, when the operation is closed, the doctor will put a drainage tube to draw out the congestion in the wound. If the drainage tube is improperly placed, or the bleeding is not done well, a large amount of congestion is likely to accumulate on the face after operation, resulting in hematoma.
Risk 5. dislocation of joint
Mandibular surgery and zygomatic surgery will encounter temporomandibular joint, which is near the temple and is the position where the chin is hung in daily life. Therefore, the doctor should hold the surgeon's chin hard during the operation to keep the temporomandibular joint tense. A little carelessness will lead to joint dislocation, which is often called "jaw drop"