The diagnosis of cracked tooth is important for prognosis and treatment planning . The earlier the diagnosis is made, the better the prognosis. It is essential to establish whether the fracture is horizontal or vertical. Horizontal cracks may be either vertical or oblique depending upon the direction of the fracture; vertical cracks are more likely to be periodontal than root fractures. Root fractures are commonly vertical or oblique fractures. It is essential to determine the extent of the crack, which may be a factor in deciding whether endodontic or periodontal treatment is indicated. The vertical crack could be due to overloading, inadequate preparation, occlusal loads or abnormal tooth anatomy. The horizontal crack can be due to excessive forces on a normal tooth or normal forces on a weakened tooth . A cracked tooth may be asymptomatic and will not necessarily require treatment but if the tooth is not treated, it will continue to deteriorate and possible fracture . The diagnosis of cracked tooth should be established as soon as possible because it can be asymptomatic, and the prognosis is poor if the tooth is not treated [3, 5]. It is important to determine the extent of the crack to determine the prognosis of the tooth and the extent of treatment required to save it. The prognosis of the cracked tooth is generally poor because the tooth becomes more susceptible to further fracture. Eventually, the tooth may be lost [1, 2]. The radiographic signs of a cracked tooth include angular bone loss, generalised widening of periodontal ligament space, a vertical or oblique fracture, and radiolucency within the apical third of the crown or in the periodontal ligament [5, 6]. The diagnosis of cracked tooth can be challenging as the signs and symptoms are variable or nonspecific .
This article has been accepted for publication in Journal of Endodontics. The authors will be able to publish the final version of the paper on the Journal of Endodontics website at www.endodontics.com . The online version will be published in the Journal of Endodontics website, www.endodontics.com . Final published versions will be the same as the published version in the Journal of Endodontics.
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