牙痈（再见） 又名牙 风初起有小块生龈肉上，或上下，或内外，其状高硬，用口疳药吹之。
穿牙疔穿牙毒 先二日，牙痛发寒热，后痛更甚，龈上发一紫块，龈肉皆紫黑者是也。已破曰穿牙毒，色红
可治，青色、黑色不治，用金丹加碧丹吹之，内服凉血清火解毒之剂。破
者，口疳药加牛黄，妙。
牙宣龈痒满口牙出血，牙龈肉赤齿缝出血味酸，此实火上攻，宜清胃散加侧柏叶。淡血常渗不已者，胃虚火
动也，宜消风清火滋阴凉血之剂，外用珍珠散敷之。海螵蛸一钱，龙骨二钱，珍珠三厘，辰砂、象皮、乳香、没
药、冰片各五分，研细，棉花团指大，水湿蘸药，擦患处，以指抵实一二次，即愈。若龈痒者，血虚也。补血药
中加白芷。牙宣不止，以丝绵烧灰，存性，加冰硼少许，搽之，立效。满口牙出血，枸杞为末，煎汤漱之，然后
吞下，立止。
齿缝作胀 不能啮物，元气虚也，补中益气、十全大补酌用。
牙黄如金 糯稻糠烧灰，擦之即洁白如玉。
牙龈常出臭汗 此阳明风热郁积，用桃仁十五个，桂枝、芒硝、炙甘草各一钱，大黄两钱，水煎服。
小儿马牙 牙龈上有白色如脆骨者，是将发此毒，即打喷嚏，须日日以针挑之，频吹口疳药自瘳。
风火牙痛 用轻粉、大蒜各少许，研烂，男左女右，手按寸关上，青布扎定，立效。或起小泡无害。
龋齿 用五灵脂米许，咬痛处，少顷，温水漱出，有虫可见。雄黄、川椒、槟榔等分，加真蟾酥、麝香各少
许，枣肉为丸，塞蛀孔中，虫化为水，痛当立止（一方无槟榔亦甚神效）。
髓溢奇疾 日见牙齿渐长，艰于纳食，此名髓溢，用白术一味，煎汤，漱服。出《夏子益奇疾方》。
Dental Abscess (see also) Also known as dental gangrene. At the initial stage of wind-pathogen invasion, small nodules appear on the gingival tissue, located either superiorly or inferiorly, internally or externally. The lesions are elevated and hard; apply oral gangrene powder via insufflation.
Penetrating Dental Carbuncle / Penetrating Dental Toxin Two days prior to onset, toothache is accompanied by chills and fever, followed by intensified pain. A purple nodule appears on the gingiva, with the surrounding gingival tissue turning dark purple or black. This condition is termed "Penetrating Dental Carbuncle/Toxin." If ulcerated, it is called "Penetrating Dental Toxin"; cases with red coloration are treatable, while those with cyanotic or black discoloration are intractable. Apply *Jindan* combined with *Bidan* via insufflation, and administer internal decoctions for cooling blood, clearing heat, and detoxifying. For ulcerated cases, adding *Niuhuang* (Calculus Bovis) to the oral gangrene powder yields excellent results.
Gingival Recession (Yaxuan) Itching gums with bleeding from all teeth, reddened gingival tissue, and bleeding from interdental spaces with a sour taste indicate excess fire attacking upward. Use *Qingwei San* (Stomach-Clearing Powder) supplemented with *Cebaiye* (Platycladi Cacumen). If pale blood oozes continuously, it indicates deficiency-fire stirring due to stomach deficiency; use formulas that dispel wind, clear heat, nourish yin, and cool blood. Externally apply *Zhenzhu San* (Pearl Powder). Formula: *Haipiaoxiao* (Sepiae Endoconcha) 1 qian, *Longgu* (Fossilized Bones) 2 qian, *Zhenzhu* (Margarita) 3 li, *Chensha* (Cinnabar), *Xiangpi* (Elephant Skin), *Ruxiang* (Boswelliae Resina), *Moyao* (Myrrhae Resina), and *Bingpian* (Borneolum Syntheticum) each 5 fen. Grind into fine powder. Take a cotton ball size of a finger, moisten with water, dip in powder, wipe the affected area, and press firmly with a finger one or two times until healed. If gum itching occurs, it is due to blood deficiency; add *Baizhi* (Angelicae Dahuricae Radix) to blood-nourishing formulas. For persistent gingival recession, burn silk floss to ash (preserving its nature), mix with a small amount of *Bingpeng San*, and apply to the site for immediate effect. For bleeding from all teeth, grind *Gouqi* (Lycii Fructus) into powder, decoct in water for rinsing, then swallow for immediate hemostasis.
Interdental Swelling Inability to masticate indicates deficiency of primordial qi. Selectively use *Buzhong Yiqi Tang* (Decoction for Boosting the Middle and Augmenting Qi) or *Shiquan Dabu Tang* (Decoction for Perfect Great Tonification).
Teeth Yellow as Gold Burn rice husk from glutinous rice to ash and rub onto teeth to make them white as jade.
Gums Exuding Foul Sweat Accumulation of wind-heat in the Yangming channel. Use 15 *Taoren* (Persicae Semen), *Guizhi* (Cinnamomi Ramulus) 1 qian, *Mangxiao* (Natrii Sulfas) 1 qian, and *Zhigancao* (Prepared Glycyrrhizae Radix et Rhizoma) 1 qian, *Dahuang* (Rhei Radix et Rhizoma) 2 qian. Decoct in water and take orally.
Infant's Horse Teeth White, brittle-bone-like structures on the gums indicate impending eruption of this toxin, often accompanied by sneezing. Puncture daily with a needle and frequently insufflate oral gangrene powder for spontaneous recovery.
Wind-Fire Toothache Mix small amounts of *Qingfen* (Calomelas) and garlic, grind into a paste. Males press the left hand, females press the right hand at the Cun and Guan pulse positions, and bind tightly with blue cloth for immediate relief. Small blisters may form but are harmless.
Dental Caries Bite a grain-sized piece of *Wulingzhi* (Trogopterori Faeces) on the painful spot. After a moment, rinse with warm water; parasites may be visible. Combine equal parts of *Xionghuang* (Realgar), *Chuanjiao* (Zanthoxyli Pericarpium), and *Binglang* (Arecae Semen). Add small amounts of *Zhenchansu* (Bufo Venenum) and *Shexiang* (Moschus). Form pills with jujube pulp and insert into carious cavities. Parasites dissolve into fluid, and pain stops immediately (a variant without Binglang is also highly effective).
Marrow Overflow Rare Disease Teeth gradually elongate daily, making eating difficult. This is called "Marow Overflow." Use only *Baizhu* (Atractylodis Macrocephalae Rhizoma), decoct in water, rinse the mouth, and swallow. Source: *Xia Zi Yi Qiji Fang* (Formulas for Rare Diseases by Xia Zi Yi).