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Vertical root fracture. Vertical root fractures are a type of fracture of a tooth. They can be characterized by an incomplete or complete fracture line that extends through the long axis of the root toward the apex. Vertical root fractures represent between 2 and 5 percent of crown/root fractures. The greatest incidence occurs in endodontically ...
Dental abscess. A decayed, broken down tooth, which has undergone pulpal necrosis. A periapical abscess (i.e. around the apex of the tooth root) has then formed and pus is draining into the mouth via an intraoral sinus (gumboil). A dental abscess is a localized collection of pus associated with a tooth.
ENT surgery. .. [1] Oroantral fistula (OAF) is an epithelialized oroantral communication (OAC). OAC refers to an abnormal connection between the oral cavity and the antrum (or maxillary sinus). The creation of an OAC is most commonly due to the extraction of a maxillary (upper) tooth, typically a maxillary first molar, which is closely related ...
Cracked tooth syndrome could be considered a type of dental trauma and also one of the possible causes of dental pain. One definition of cracked tooth syndrome is "a fracture plane of unknown depth and direction passing through tooth structure that, if not already involving, may progress to communicate with the pulp and/or periodontal ligament ...
In dentistry, the smear layer is a layer found on root canal walls after root canal instrumentation. It consists of microcrystalline and organic particle debris. It was first described in 1975 and research has been performed since then to evaluate its importance in bacteria penetration into the dentinal tubules and its effects on endodontic treatment.
Post and core. A post and core crown is a type of dental restoration required where there is an inadequate amount of sound tooth tissue remaining to retain a conventional crown. A post is cemented into a prepared root canal, which retains a core restoration, which retains the final crown. [1][2]
Root fracture. Root fracture of the tooth is a dentine cementum fracture involving the pulp. Traumatic root fracture occurs most often in the middle third of the roots of fully erupted and fully formed teeth. However, root treated teeth are more susceptible to root fracture, as this involves removing root dentine, thereby weakening the tooth. [1]
Healing of periapical lesions. Apical periodontitis is typically the body's defense response to the threat of microbial invasion from the root canal. [1] Primary among the members of the host defense mechanism is the polymorphonuclear leukocyte, otherwise known as the neutrophil. The task of the neutrophil is to locate and destroy microbes that ...