Cracked teeth

Also known as incomplete cracks or cracked teeth. Refers to non-physiological small cracks on the crown surface, which are often difficult to find. Tooth cracks often penetrate deep into the dentin structure, which is one of the causes of toothache. Because it is more common clinically, and the crack is easy to be ignored, the clinician should pay sufficient attention. Cracked teeth occur most in maxillary molars, followed by mandibular molars and maxillary premolars. The first molar is significantly more than the second molar, especially near the medial condyle tip. This is the main working tooth tip during mandibular chewing exercise, which bears the largest combined force and has the most suitable cusp with the central fossa of the mandibular molar. Counterpoint relationship. Although the maxillary molars have oblique ridges, due to the uneven and highly occlusal abrasion and the close occlusal relationship, it is also easy to occur in the mesial or distant fossa of the commissure, the crevice between the cheek tips or the tongue tips Fragmented.

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