long-term unexplained toothache Please note cracked teeth

Long-term unexplained toothache may be provided by cracked teeth caused because crack cracked tooth dentin structure constant depth, while the non-physiological crown surface hairline cracks often difficult to detect and is ignored, so long as the reasons found unknown toothache, acrylic resin teeth clinicians should be given adequate attention, check for cracked teeth.
Cracked teeth occurred in the maxillary molars most mandibular molars and maxillary second premolar; significantly more than the first molar second molar, mesial palatal tip (ie, bear the greatest work of occlusal force tip) more likely. Teeth withstand stress concentration occlusal force itself cracking strength is low, cusp inclination large force trauma teeth are cracked teeth fracturing factor.
If the elderly molars and bicuspids for a longer time chewing pain and cold pain, irritability history, or bite causes pain in a particular area, and there was a history of injury Ge hard objects that may occur teeth hidden crack. Characterized as follows: occlusal surface cracked coincide with developmental groove and extends over the edge of the ridge; cracked iodine can be stained or radiographic examination see the shadow of deep fine tooth body with the same name as the teeth often symmetrical jaw occurred; suffering occlusal abnormal wear and face steep cusp, there are side percussion pain and biting pain clinics; often cracked at pigmentation, secondary pulp hyperemia, pulpitis, pulp necrosis and periapical inflammation.
For superficial cracked, no obvious symptoms, pulp vitality normal for occlusal adjustment therapy, can also be prepared hole, rubbed crack for preventive filling; For deep cracks or endodontic lesions, in endodontic treatment, while a large number of adjustments cusp slope, completely remove the teeth are exposed fracturing force, after treatment in a timely manner crowns; endodontic treatment started to do with ring glue to protect the crowns, endodontic treatment should be finished in time for the full crown restoration is essential.