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Abstract

Introduction: Cracked tooth is a current hard tissue affection; the type of cracks directly affects the selection of treatment and restoration. Objective: To evaluate the literature about cracked Tooth, its etiology, symptoms, diagnosis and treatment. Methodology: A review was carried out in the databases Scopus, PubMed and Google Scholar with the keywords "Cracked tooth", "etiology", "diagnosis", "treatment", "Subgingival margin". Results: Bad oral habits, such as eating habits, unilateral chewing, bruxism and premature occlusion, promote dental fissures, cracked teeth are most frequently involved in mandibular and maxillary molars. Cracked teeth may be associated with pain, especially pain on biting, and to a lesser degree cold and spontaneous pain. Early diagnosis can help prevent the spread of a crack into the pulp chamber or subgingival level. The dental operating microscope can fundamentally change a dentist's ability to diagnose such conditions. Ceramic inlay and onlay restorations are advantageous methods to prevent further crack propagation. Dentists can effectively evaluate patient, tooth and crack level characteristics to determine which teeth with cracks require treatment and which only require monitoring. Conclusions: The dentist should know well how to diagnose the cracked tooth, perform diagnostic tests together in order to have the accurate diagnosis.