The villagers' decorative aesthetic style aside, Sun Lien is more concerned about the brazier next to the baroque coffee table. This brazier does not have a flue, and there is a risk of carbon monoxide poisoning when it ignites a fire.

However, everyone seems to know the dangers of carbon monoxide poisoning, and the houses where braziers are used have open doors and windows.

I don't know how much effect a small brazier can have under the condition of blowing through the hall.

After turning around, Sun Lien's biggest feeling is that most of the residents in the village are elderly. Looking around this time, the youngest villagers he saw were all over forty years old. There are probably only two or three young people in their twenties in the entire Guojia Village, and they are still gathered at the village committee to help. It is estimated that all the other young people have settled down in the mountains or gone out to work - not even for the Chinese New Year.

It is no wonder that the village committee is so experienced in handling village seats, and it is no wonder that the village committee is so attentive to the inspection. Most of the current residents of the village are elderly people who refuse to settle in the city, so it is important to organize a dinner party during the Chinese New Year and provide them with regular medical care.

Sun Lien sighed that the work of the old branch secretary was not easy, and walked to the village committee. It's about the same time, even if Lao Bu is really a starving ghost reincarnated, he should be full now.

When he arrived at the scene, the doctors of the medical team had indeed finished their meals and were moving their legs and feet. Bruun and Dr. Pascal were habitually lifting each other's bars, this time with what seemed to be ...... Italian?

How many languages do these two old men speak?

Seeing Sun Lien coming back, Director Huang Wenhui, who led the team, beckoned to him, "Little Sun, come over here." ”

Sun Lien heard the words and walked towards Director Huang, while she turned her head and continued to listen to the reports of the other doctors.

The doctor who reported this time was supposed to be a stomatist, and he was responsible for conducting basic dental examinations for the elderly villagers. “...... None of the 79 residents currently being examined have tooth decay. Oral problems are mainly focused on impacted teeth and normal wear and tear. The doctor from the Department of Stomatology is very handsome, but his nose is a little collapsed, and there is a feeling of "looking dragged down by the nose".

"Not a single caries?" Director Huang Wenhui was a little surprised, "Are you sure?"

The incidence of dental caries in adults is actually very high, especially in rural areas. As the gums recede, the gap between the teeth becomes larger, and tooth decay in adults often occurs in crevices that are not visible to the naked eye. In these places, the thickness of the original enamel and dentin is smaller. Therefore, by the time pain occurs, it has often eroded into the pulp. And because of the location of the gap, it is also very troublesome to fill.

Therefore, the inspection team is specially assigned two dentists, in order to detect these latent adult caries as soon as possible, and persuade the patients to go to the hospital for treatment as soon as possible - the development of caries is serious, which may lead to osteomyelitis. In such inaccessible villages, there is a high risk of osteomyelitis due to severe tooth decay.

"Not really. The dentist, who didn't have a good-looking nose, nodded solemnly, "At first, I thought that I and my junior brother had missed it, but later more than forty patients had been double-examined by the two of us, and it was indeed not." ”

Sun Lien stood in place, his stomatology grades were very average, but during class, he remembered a sentence that the teacher said very clearly - among adults, the periodontal health rate is about 14.8%. In other words, at least 80% of adults have tooth decay or other periodontal problems.

However, according to the results of the inspection team, the periodontal health rate of adults in Guojia Village reached an eye-popping 94%, and the remaining 6% was due to normal wear and tear caused by age and the influence of natural impacted teeth.

It's anomalous. It was so abnormal that Sun Lien was stunned on the spot.

"You started the afternoon with the diagnosis of the previous nine patients. After listening to the dentist's report, Huang Wenhui pondered for a long time and didn't come up with a reason. She shook her head, forgot the chaotic thoughts in her mind first, and turned to Sun Lien and said, "If you feel that there is a problem, then notify the CDC directly." ”

Director Huang, who came from the Department of Respiratory Medicine, is very vigilant about infectious diseases. The same disease occurs in successive cases in multiple patients, who are also residents of the same village. Taken together, these two points will naturally lead to infectious diseases. Even if there is no direct evidence for this, and there are no infectious diseases that invade the nervous system that cause long-term neurological symptoms, they are not fatal.

"Okay. Sun Lien nodded reluctantly, and dealt with the errand in advance. But I was still wondering what the low incidence of dental caries meant - it couldn't be because the villagers' oral hygiene habits were so good that they brushed their teeth three times a day, right?

Director Huang Wenhui nodded, and was about to leave, but suddenly turned to Sun Lien and asked, "What are you thinking about your girlfriend?" "If you're worried about your girlfriend, why don't you call now? Anyway, there's still forty minutes before the afternoon rounds begin." ”

Sun Lien was regained by Director Huang's joke, he shook his head and smiled a little embarrassed, and then asked, "Director Huang, I'm thinking about the reason for the low caries in adults here......

"Hey, you can't just listen to the first half when we're chatting. Director Huang waved his hand carelessly, "We estimate that it is probably because of the fluoride contained in drinking water." The fluoride content of drinking water should be quite high, but it is not enough to pay attention to it - none of them have dental fluorosis, and they should be far from poisoning. ”

Sun Lien frowned and asked, "Does fluorosis have dental fluorosis?" He vaguely felt that the reason for not having tooth decay was probably related to Guo Ying's symptoms. However, fluorosis belongs to the learning content of public health, and as a clinician, and it is also an emergency direction, Sun Lien is very unfamiliar with it.

"Not necessarily......" Director Huang shook his head, "The formation of dental fluorosis is caused by excessive fluoride ingestion when tooth enamel is developing. If you start to overdose on fluoride after the enamel has finished, you won't have dental fluorosis......"

Sun Lien's eyes lit up, but then he rejected his conjecture, "If fluorosis is caused by excessive fluoride intake, then why is the symptoms only limited to the elderly, but not the young? Fluoride is not the kind of substance that cannot be metabolized and accumulates with age—there is no finding that the cause of the disease will worsen with age." ”

Sun Lien was puzzled, and Director Huang seemed to remember something, she directly turned around and called the village party secretary and asked, "When did the habit of drinking tea in every household in our village begin?"

"Probably...... The year the electricity was started, right?" the village party secretary thought about it carefully, then shook his head, saying that he couldn't really remember it, "How can this kind of thing be accurate!"

"I don't think there are many young people in our village who drink tea. Director Huang continued to ask patiently, "What kind of drinks do they usually drink?"

"Whitewater. Some drink beer, some drink drinks. The village party secretary replied, "Brick tea has a strong taste, and not everyone likes to drink it with goat's milk." ”

Sun Lien's eyes widened, and he suddenly thought of a possibility.

"Secretary Guo, is the goat milk we drink in our village directly squeezed out and mixed into tea to drink?" Sun Lien directly raised his own question.

Huang Wenhui's eyes lit up, "Do you suspect brucellosis?"