It is often said, “Toothache is not a disease, but it hurts like hell.” In fact, to be precise, toothache is not a disease, is one of the manifestations of many diseases. In life, when a toothache, many people either use the so-called prescription to deal with, is to buy their own painkillers, anti-inflammatory drugs to get rid of. Very often, these negative coping methods not only can not play a role in effective treatment, and may even aggravate the condition. Therefore, the tooth pain, we must find the cause in a timely manner, the cause of the treatment. So, what are the causes of tooth pain in life? How to treat it? Here I will talk to you about this topic, I hope to be able to help your health. 1, pulpitis Pulpitis is an inflammation caused by bacteria or toxins invading the pulp located in the center of the tooth. Spontaneous, paroxysmal pain is the main manifestation. If not treated in time, it can develop into pulp gangrene and apical periodontitis in the later stage. Countermeasure: Endodontic treatment is needed. 2, caries shallow caries generally asymptomatic, if it is allowed to develop, caries hole becomes large and deep, there will be tooth pain when eating, eating sweets or too cold, too hot food when the pain is aggravated. Countermeasures: pay attention to oral hygiene, timely detection, early filling of caries, or gradually aggravated will lead to pulpitis, prolonged treatment time, increased costs, decreased efficacy. 3, deformed central cusp The deformed central cusp is the teeth during development, enamel forming apparatus morphology differentiation abnormalities caused by abnormal development of tooth morphology. Mostly seen in the mandibular premolar, especially the second premolar most common, occasionally seen in the maxillary premolar. Often occurs symmetrically. The malformed central cusp is usually located in the central fossa of the occlusal surface and is conical in shape. The height of the central cusp is 1-3mm, and the shape can be conical, cylindrical or hemispherical. Fracture or abrasion of the malformed central cusp will lead to pulp inflammation, causing tooth pain. Countermeasures: (1) A malformed central cusp that is round and blunt and has unobstructed occlusal contact can be observed without treatment. (2) Reinforcement against fracture: For the fine and pointed central cusp on the newly erupted tooth, in order to prevent it from fracture and infection in the future, strong bonding agent and composite resin can be used to reinforce around the cusp, so that the malformed cusp will undergo physiological wear along with the tooth, and promote the formation of secondary dentin at the pulpal angle, in order to maintain the normal development of the pulp and the root of the tooth. (3) If pulpal infection has occurred, endodontic treatment is required; young permanent teeth should first be considered for apical induction formation, and root canal treatment should be performed after root development and formation. (4) Root formation is too little and serious periapical infection of the tooth, or periapical lesions and the gingival sulcus is connected, then need to be extracted. 4, wedge-shaped defect Wedge-shaped defect is a tooth lip, cheek, face and neck hard tissue due to some factors for a long time, slow consumption caused by the defect, because this defect is often wedge-shaped and thus named. Typical wedge-shaped defects consist of two planes intersecting each other, some are composed of three planes, and a few are ovoid in shape. The edges of the defects are neat, the surfaces are hard and smooth, and they are usually the natural color of the tooth tissue, sometimes with varying degrees of staining. The main reason for the occurrence of wedge-shaped defects is to brush horizontally (saw brushing). Countermeasures: (1) The loss of very small (shallow) wedge-shaped defects, asymptomatic, can not be treated. (2) Dentin allergy, can be desensitized with drugs. (3) Too large, too deep defects, can be filled with dental materials to repair. Those who have penetrated the pulp can be treated with root canal therapy, and then the defect can be repaired. For fractured teeth, root canal treatment can be carried out after the crown, crown or tooth extraction after inlay, implantation, etc., depending on the situation. (4) Use the correct brushing method to brush the teeth (recommended to use the horizontal vibration method), do not use excessive force when brushing the teeth, this is the premise and foundation. 5.Dentin Allergy Dentin allergy is the teeth in eating cold, hot, sour, sweet and even in brushing friction or bite something hard when there will be transient pain, generally around 40 years of age. To be precise, it is not an independent disease, but a common symptom of many dental diseases. The most common cause is excessive wear and tear of the occlusal surfaces of the teeth, which can also be seen in wedge-shaped defects, dental caries or gum recession. Countermeasures: Fluoride can be used to repeatedly rub the sensitive area. For repeated drug desensitization is ineffective, can be considered for filling surgery or artificial crown restoration. Individuals with severe wear close to the pulp can consider endodontic treatment if necessary. Patients can chew raw walnuts, dried tea leaves or use the cross-section of fresh garlic to repeatedly rub the allergic areas of sore teeth can effectively relieve the symptoms. Patients with nocturnal teeth grinding need to wear braces at night. Wedge-shaped defects, caries treatment as before. 6.Cryptic Fracture Cryptic Fracture refers to the non-physiological small cracks on the surface of the crown of the tooth, which is often not easy to be found. The cracks often penetrate into the dentin structure, which is one of the causes of toothache. Superficial fissures are usually asymptomatic, while deeper fissures are sensitive to hot and cold stimuli, or may cause discomfort when biting. Deep occult fissure has reached the deep dentin layer, most of the symptoms of chronic pulpitis, and sometimes can be acute attack, and fixed chewing pain. Weaknesses in the tooth structure, large apical bevels, and traumatic forces are etiologic factors. Countermeasure: If the root of the tooth is good and the tooth can be preserved in patients with cryptocleidosis, endodontic treatment, i.e. root canal treatment, is usually recommended, followed by timely crown restoration to preserve the affected tooth. If the root of the cracked tooth has been cracked to the root and the tooth cannot be retained, it is generally recommended to extract it and then do denture or dental implant restoration in time. 7.Cracked teeth Most of the cracked teeth are caused by biting into hard objects (such as rice with small stones or broken bones) due to stress concentration. Also seen in some bad habits, such as biting the bottle cap with teeth. Countermeasures: Develop a good oral habit, do not bite hard objects with your teeth, and chew and swallow slowly when eating. The treatment depends on the degree of cracking, if the crown is only partially cracked and the pulp cavity is exposed, root canal treatment should be done first, and crown restoration should be done later to restore the tooth’s shape and function. If it is cracked from the crown to the root of the tooth, the general possibility of extraction is greater. 8.Periapical periodontitis refers to the inflammatory and destructive disease that occurs around the root tip of the tooth. Acute inflammation is characterized by persistent tooth pain. The affected tooth has a sense of elongation, touch, pressure pain is obvious, can not bite food. Countermeasures:Need to open the pulp drainage anti-inflammatory, root canal treatment, if necessary, but also to take the micro-apical surgery, periapical lesions range of treatment. 9, wisdom teeth pericoronitis wisdom teeth pericoronitis refers to wisdom teeth (third molar) eruption is incomplete or obstruction, the soft tissue around the crown of the inflammation. 18 ~ 25 years old for the age of prevalence, to the wisdom teeth around the soft tissues and gingival congestion, swelling, pain, vesicles, or pus overflowing blind pockets, can also be combined with chills, fever and other systemic symptoms. Countermeasures: local cleaning, clean all the food debris and thick liquid around the crown, and then use anti-inflammatory and pain relieving drugs as prescribed by the doctor. After the inflammation subsides, if the wisdom tooth is in the right position, can erupt normally, and there are opposite teeth, you need to do pericoronal gingivectomy. If the wisdom teeth are blocked and cannot erupt, they need to be extracted. 10, dental trauma, such as accidental falls, bruises, etc., resulting in tooth crown and/or root fracture or dislocation. Countermeasures: If the crown is fractured, the area is small, generally no treatment is needed, you can not do the treatment or fill with dental materials to restore the shape of the tooth. If the fracture edge is sharp, the sharp edge needs to be smoothed. If the pulp is injured, immediate pulp protection is required, or even removal of the pulp for root canal treatment. If the root of the tooth is injured, the tooth will need to be immobilized after root canal treatment or extracted, depending on the location of the fracture. The principle of treatment for dislocated teeth is to save the affected tooth as much as possible. Partially dislocated teeth should be repositioned and fixed under anesthesia. If the nerve of the tooth is found to be necrotic, root canal treatment should be carried out in a timely manner. Teeth that are completely dislocated should be reimplanted immediately. If the tooth is not contaminated, the dislocated tooth can be restored in the alveolar socket; if the dislocated tooth is contaminated, it can be rinsed in water and then preserved in saline (if there is no saline, it can also be replaced by milk).