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Azerbaycan Saytlari

 »  Home  »  Endodontic Articles 11  »  Densinvaginatus type III: report of a case and 10-year radiographic follow-up
Densinvaginatus type III: report of a case and 10-year radiographic follow-up
Discussion - References.



Discussion.
According to Oehlers (1957), ‘dens invaginatus’ can present three distinct types depending on the depth of invagination and whether there is any communication with the periodontal ligament or periapical tissue.
The case reported in this article is a type III one and its clinical appearance was of ‘dens invaginatus’, with an associated ‘talon cusp’. Communication between the invagination and the oral environment was not apparent clinically, but it must have been present since a periapical radiolucency had developed. Bacterial contamination of the invagination that occurred subsequent to eruption of the tooth resulted in infection of the invagination and this, in turn, led to the development of periapical inflammation. Morfis & Lentzari (1989) reported that the presence of infection in the invagination could delay root development, as occurred in this case. Once the infection had been eliminated by canal preparation and irrigation, the periapical inflammation subsided, and the normal pulp within the main canal continued its normal process of root development.
Pulp sensibility testing highlighted a problem in this case and the positive response to testing does not necessarily mean that the whole pulp is alive. As reported by Kulild & Weller (1989), an invagination can occasionally become infected but the main canal contains normal pulp tissue.
Communication may exist between the root canal and the invagination (Gotoh et al. 1979). However, the tooth reported in this case did not appear to have any communication because the pulp responded to sensibility tests both before and after treatment. In addition, the resolution of the periapical radiolucency suggests that it was associated with the invagination.
The follow-up examinations demonstrate that conservative root-canal treatment of the invagination was successful with radiographs showing periapical healing.

References.

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