1/2. Gingival necrosis following the use of a paraformaldehyde-containing paste: a case report.AIM: To report on an unusual case of gingival necrosis following the use of a paraformaldehyde-containing paste in root canal treatment. SUMMARY: Paraformaldehyde preparations are toxic to hard and soft tissues. In an era of effective local anaesthesia, toxic devitalizing preparations have few applications. However, in a mobile world population, severe tissue injury may occasionally be encountered after the use of paraformaldehyde or other toxic agents in some parts of the world. dentists should avoid such preparations and be alert of the features and management of local toxicity if they encounter it in practice. KEY learning POINTS: Paraformaldehyde-containing pastes have no application in contemporary dentistry. dentists should avoid toxic preparations for pulp devitalization. dentists should be aware of the features and management of tissue necrosis resulting from the use of toxic dressing materials.- - - - - - - - - - ranking = 1keywords = anaesthesia (Clic here for more details about this article) |
2/2. Management of gingival vitiligo with the use of a tattoo technique.The purpose of this report is to describe the management of gingival vitiligo in a black female. This patient was referred by her psychiatrist to the Mount Sinai Hospital Dental Department (Toronto) for assessment of progressive loss in gingival pigmentation. According to her psychiatrist this loss of pigmentation, which the patient indicated may be considered in africa as a hallmark of hiv infection, was a significant exogenous factor in relation to the patient's ongoing clinical depression. After obtaining informed consent, a modification of a tattooing method used for skin was applied to the patient's attached gingival tissues. Test sites were tattooed prior to performing full gingival tattooing under local anaesthesia. The results demonstrate that it was possible to restore this patient's gingival pigmentation in a highly esthetically acceptable manner. The resulting coloration was reminiscent of the patient's natural pigmentation that had been lost ostensibly because of her systemic disorder. Our findings also showed that the artificial pigmentation established via the tattoo method was stable 4 months postoperatively and continues to be stable, as expected. A profound improvement in the patient's mood was noted.- - - - - - - - - - ranking = 1keywords = anaesthesia (Clic here for more details about this article) |