[A study concerning radiographic diagnosis in dental caries of primary teeth. 1. The investigation on the indications for pulpotomy with formocresol].

The prognosis in the pulpotomy procedure with Formocresol during primary teeth has an excellent clinical results. On the other hand, some reports of a poor prognosis in radiographic findings were found. To obtain valuable information about the indications for pulpotomy procedures is quite difficult in the case of children concerning. In 1972, Kurihara reported radiographic findings the indications for the pulpotomy procedure in primary molars with a stable stage having no root absorption. The authors investigated the clinical and radiographic changes 6 months after the pulpotomy procedure with Formocresol. 26 primary lower molars having four criteria obtained from 3 to 7 year old patients were treated, and 4 primary lower molars were used as controls without the criteria. We found that the dental lamina dura were an especially important finding to judge the indications for pulpotomy with Formocresol in primary molars.