Dislocated jaw during nucleic acid sampling! Expert: Don’t open your mouth too much all of a sudden

“We have a girl who dislocated her jaw during nucleic acid sampling. The school doctor did not succeed in repositioning. Please help.” March 15 On the morning of Sunday, the medical department of Shanghai Stomatological Hospital received a call for help from a university. Under the guidance of an oral and maxillofacial surgery expert for more than 10 minutes of remote video connection, the school doctor successfully reset it and helped the girl finally smile again.

Due to the requirements of epidemic prevention and control, students cannot go out to seek medical treatment for the time being, but it is urgent to reset the dislocation. After receiving the help information from the university, the hospital attached great importance to it and immediately launched a rescue plan, arranging remote video guidance from Dr. Sheng Lu, deputy chief physician of oral and maxillofacial surgery. After the video connection between the two parties, the girl’s mouth was wide open and her chin was stretched forward, which is a typical “chin drop” symptom.

“Look at the front.” “Okay!” “Dislocation on both sides or on one side?” “Left side.” The school doctor worked closely with Dr. Sheng Lu, and quickly confirmed the diagnosis, “The girl was a nucleic acid sampler. Chin dislocation is the most common acute dislocation in clinical practice.” Dr. Sheng Lu said that the school doctor can completely reset it under remote guidance.

Both sides had a bottom line. While the video connection was being made, Dr. Sheng Lu instructed the school doctor step by step to perform manual reset. It was a success in just a few minutes. Everyone breathed a sigh of relief, and the girl showed a little A happy and embarrassed smile. After the repositioning, the school doctor carried out a retaining bandage. Dr. Sheng Lu took care of the girls to limit the opening of the mouth for one week, to avoid large openings, and the opening should not exceed 1.5 cm to prevent recurrent dislocations in the future.

Dr. Sheng Lu said that after acute dislocation of the temporomandibular joint, it should be reset in time, otherwise it will be difficult to reset after the fibrous tissue hyperplasia is gradually formed around the dislocation.

After inquiring about the medical history, the girl had a history of chin dislocation. The dentist reminded the general public that dislocation of the temporomandibular joint is easy to recur, and it is necessary to avoid rapid opening of the mouth during nucleic acid testing. If a chin dislocation occurs, you should promptly to a professional medical institution for treatment. If you’ve never had a “jaw drop” before, you don’t have to worry about getting sick when taking an oropharyngeal swab, the chance of it happening is very low. If there is a similar medical history before, a nasal swab can be considered for sampling.

Science link: What is the temporomandibular joint?

The temporomandibular joint is composed of the condyle of the mandible and the temporomandibular joint of the temporal bone. It is an important joint of the skull. We speak, eat, and sing every day. Functional activities are inseparable from it. The temporomandibular joint is a very special joint. It is one of the few joints in the human body with joint discs, and it is also the only joint in the body that requires bilateral joint linkage. Every time you open and close your mouth, the temporomandibular joint needs to be involved, and every chewing will also bring a certain amount of pressure to it.

Because the anterior wall of the mandibular joint capsule has no ligament reinforcement and is relatively weak, the mandibular joint process can slip forward through the anterior wall to the front of the temporomandibular joint fossa and dislocate. Temporomandibular joint dislocation is when the condyle slips out of the joint socket beyond the normal limit of joint motion, so that it cannot return to its original position on its own.

Correspondent Jin Heng Xinmin Evening News reporter Zuo Yan