手阳明之支脉入于齿。头面有风，阳明之脉虚，风乘虚随脉流入于齿者，则令齿有风，
微肿而根浮也。其汤熨针石，别有正方。补养宣导，今附于后。
《养生方·导引法》云∶凡人常觉脊背皆崛强而闷，不问时节，缩咽膊内，仰面努
膊井向上，头左右两向挪之，左右三七，一住，待血行气动定，然始更用。初缓后
急，不得先急后缓。若无病患，常欲得旦起、午时、日没三辰，如用，辰别三七。除寒热病
，脊、腰、头、颈、项痛，风痹。口内生疮，牙齿风，头眩，终尽除也。
手阳明之支脉入于齿。头面有风，风气流入阳明之脉，与龈间血气相搏，故成肿
《养生方》云∶水银不得近牙齿，发龈肿，善落齿。
手阳明之支脉入于齿。头面有风，而阳明脉虚，风挟热乘虚入齿龈，搏于血，故
血出也。
牙齿虫是虫食牙，又食于齿，亦令牙齿疼痛。皆牙齿根有孔，虫居其内，食牙齿尽，又
度食余牙齿。
牙虫是虫食于牙，牙根有孔，虫在其间，亦令牙疼痛。食一牙尽，又度食余牙。
齿虫是虫食于齿，齿根有孔，虫在其间，亦令齿疼痛。食一齿尽，又度食余齿。
《养生方》云∶鸡鸣时，常叩齿三十六下。长行之，齿不蠹虫，令人齿牢。
又云∶朝未起，早漱口中唾，满口乃吞之，辄琢齿二七过。如此者三，乃止，名曰炼精
。使人丁壮有颜色，去虫而牢齿。
又云∶人能恒服玉泉，必可丁壮妍悦，去虫牢齿。玉泉谓口中唾也。
The branch of the Hand-Yangming Large Intestine Meridian (Shouyangming Dachang Jing) enters the teeth. If wind pathogen (Feng Xie) affects the head and face, and the Yangming meridian is deficient, the wind pathogen may follow the meridian into the teeth due to the deficiency. This causes wind in the teeth, manifesting as slight swelling and loose, floating tooth roots. For treating this condition with decoctions, external heat application (Wen), acupuncture, and bian stones, there are separate specific formulas. The methods of nourishing, supplementing, and guiding circulation (Dao Yin) are attached hereafter.
The *Yangsheng Fang* (Prescriptions for Nourishing Life) · *Dao Yin Fa* (Guiding and Pulling Methods) states: Whenever a person feels stiffness and rigidity in the back accompanied by a sense of oppression, regardless of the season, they should perform the following: retract the throat and push inward toward both arms, extend the face upward while pushing the arms upward, and twist the head left and right. Perform this twenty-one times on each side (three sets of seven). Pause after each set, waiting for the blood circulation and qi movement to stabilize before proceeding. The movements should start slowly and become faster later; one must not start fast and then slow down. Even without illness, it is beneficial to practice at three specific times: upon waking in the morning, at noon, and at sunset. If used for therapeutic purposes, perform twenty-one repetitions at each time slot. This method can eliminate cold-heat disorders, pain in the spine, waist, head, neck, and nape, wind-bi syndrome, mouth sores, wind affecting the teeth, and dizziness. Persistent practice will ultimately resolve all these conditions.
The branch of the Hand-Yangming Large Intestine Meridian enters the teeth. When wind pathogen affects the head and face, the wind qi flows into the Yangming meridian and contends with the blood and qi between the gums, resulting in swelling.
The *Yangsheng Fang* states: Mercury should not come into contact with the teeth, as it causes gum swelling and predisposes one to tooth loss.
The branch of the Hand-Yangming Large Intestine Meridian enters the teeth. When wind pathogen affects the head and face, and the Yangming meridian is deficient, wind carrying heat enters the gums through the deficiency and contends with the blood, causing bleeding.
"Teeth worms" refer to insects that gnaw on the teeth and also eat into the dental structure, causing toothache. This occurs because there are holes at the root of the teeth where the insects reside inside, consuming the tooth entirely before moving on to infest other teeth.
"Dental worms" involve insects feeding within the teeth. With holes at the tooth root allowing insects to reside within, this also causes toothache. After consuming one tooth completely, they move to infest remaining teeth.
"Chew-tooth worms" involve insects gnawing on the teeth. With holes at the tooth root allowing insects to reside within, this also causes toothache. After consuming one tooth completely, they move to infest remaining teeth.
The *Yangsheng Fang* states: At cockcrow, frequently clench and tap the teeth thirty-six times. Long-term adherence prevents dental caries caused by insects and strengthens the teeth.
It further states: Before rising in the morning, rinse the mouth with saliva, swallow when the mouth is full, and then grind the teeth fourteen times (two sets of seven). Repeat this three times, then stop. This method is called "Refining Essence" (Lian Jing). It makes people vigorous and radiant in complexion, eliminates worms, and strengthens the teeth.
It also states: If one constantly consumes "Jade Spring," one will surely become vigorous and joyful in appearance, eliminating worms and strengthening the teeth. "Jade Spring" refers to the saliva in the mouth.