水酸化カルシウム製剤を用いた感染を併う根未完成歯の1治験例

抄録

Abstract : Preservation of the occlusal pressure and stimulusfree treatment were attempted for the infected root apex of an immature lower left second premolar. For this purpose, pumping irrigation with an engine reamer was carried out for a region from the root apex to a point 1 mm acove the apex. At the same time, a piece of plaster containing calcium hydroxide was applied to the affected tooth, and it was reapplied 15 timds during the 2-month period. This therapy resulted in improvement of the symptoms.

 When symptoms had disappeared completely and the lesion had improved, temporary root canal filling was performed. Four months later, the state of the affected area was examined, and root canal filling was carried out using a calcium hydroxide preparation and a gutta-percha point.

 Two years after the start of treatment (one year after root canal treatment), the lesion in the apex had disappeared, and apical hard tissue had formed. Thus, the infected immature tooth was successfully treated by a combination of occlusal pressure preservation, nonpressure irrigation and the use of calcium hydroxide.