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PubMed2003

[Success rate of direct pulp capping with calcium hydroxide].

Aim of this retrospective study was to evaluate the success rate of direct pulp-capping treatment using calcium hydroxide-containing agents according to the age of the patient, the type of tooth and the person who performed the treatment. Over a period of seven years a total of 659 patients were treated. 763 direct pulp-cappings were recorded. From these 308 patients a total of 359 pulp-cappings (= 100%) were reexamined one to eight years after treatment. 45.1% of the reexamined teeth were in males and 54.9% in females. 61.7% of the treated teeth were in the upper and 38.8% in the lower jaw. Out of the 359 teeth (= 100%) the success rate was 61% (219 teeth); while 113 teeth (31.4%) had received a root canal treatment and 27 (7.6%) had been extracted. In this study the success rate depended on the group of teeth. It decreased continuously from the anterior teeth to the molars. The central incisors showed the highest (83.3%) and the wisdom teeth the lowest (38.9%) success rate. In addition, the success rate decreased with increasing age of the patients. The most successful treatments (76.4%) were registered in the group of patients, aged 10-19 years.

Adolescent↗
PubMed1991

Evaluation of lining materials and a new concept for lining: alpha-TCP cement or visible light curing calcium hydroxide composition in composite resin restoration.

Histological studies on the effect of lining methods using a alpha-TCP (TC) and a VLC Dycal (LD) were reported previously. In this report, SEM and electron-probe microanalyzer observations were utilized to determine the effects of lining methods. SEM observations were made on longitudinal sections prepared by a freeze fracture method, using 30 vital dog teeth and 5 vital human teeth. In the LD group, several kinds of crystal growth were seen on surfaces of the material and dentinal wall. In the TC group, the exfoliated space area filled up with rod-shaped crystals. An electron-probe microanalyzer was employed to examine the crystal elements observed in the interface or the exfoliated space area. Our findings indicated that lining appeared to fill the gaps with crystal growth, block stimuli which result from bacterial invasion into the dentinal tubules, and reinforce the superficial dentinal zone.

Acid Etching, Dental↗
PubMed1986

Influence on pH level of two calcium hydroxide root canal sealers in vitro.

The pH level of saline solutions was determined 1 hour, 4 hours, 1 day, 2 days, 3 days, and 1 week after roots of human teeth, which had received one of four root canal treatments, were placed in them. The four treatments following instrumentation were filling of canals with laterally condensed gutta-percha and either Sealapex (10), calciobiotic root canal sealer (CRCS) (10), or a Grossman type sealer (10), and filling of only the coronal 2 to 3 mm of canals with Cavit (unfilled, 10). The coronal 2 to 3 mm of all canals in all groups were filled with Cavit. The pH levels of the four solutions were compared to each other and to that of saline solution only. The pH levels of the solutions in the Sealapex group were higher than those of all the other solutions for each of the six times (p less than .01). Although the pH levels of the solutions in the CRCS group were significantly lower than those of the Sealapex group, they were higher than those of the other solutions at 1 hour and at 4 hours (p less than .01). After that there were no significant differences in the level of pH for the CRCS, Grossman, unfilled, or saline-solution-only groups, except that at 3 days and at 1 week the pH levels of the unfilled group were significantly lower than those of all other groups.

Calcium Hydroxide↗
PubMed1995

A five-year comparative study of calcium hydroxide-glutaraldehyde pulpotomies versus calcium hydroxide pulpotomies in young permanent molars.

Twenty children with twenty cariously exposed first permanent molars treated with either calcium hydroxide-glutaraldehyde or calcium hydroxide pulpotomies, were followed up clinically and radiographically for a period of five years. Overall success rates obtained at the end of the follow up period were higher with calcium hydroxide-glutaraldehyde pulpotomies (100%) than with calcium hydroxide pulpotomies (80%).

Calcium Hydroxide↗