PubMed Health⌕ Search

Biomedical subjects

I C Fröner

Publications and source records attributed to I C Fröner.

3 recordsLinked to original sources
PubMed1999

Complex treatment of dens invaginatus type III in maxillary lateral incisor.

The complex anatomy and diagnosis of dens invaginatus make endodontic treatment of such teeth difficult. This case describes combined nonsurgical and surgical treatment of a maxillary lateral incisor with a normally shaped canal and a dens invaginatus type III with a lateroradicular lesion. The root canal was treated conventionally with gutta-percha and a zinc oxide-eugenol sealer. The root was surgically exposed and the canal of the dens invaginatus was cleaned, instrumented and obturated with gutta-percha and a zinc oxide-eugenol sealer. At follow-up 3 years 6 months later, the tooth was asymptomatic and radiographically showed repair of the lesion in the region of the dens invaginatus.

Adolescent↗
PubMed1999

Evaluation of the antimicrobial activity of three irrigating solutions in teeth with pulpal necrosis.

The antimicrobial activity of 0.4% papaine gel (FCF-USP), an antibacterial product derived from 3.3% castor oil (IQSC-USP), and 0.5% sodium hypochlorite (FORP-USP) was evaluated in teeth with radiographically visible pulpal necrosis and periapical lesion in vivo. After cavity access, under aseptic conditions, a first harvesting was performed. The 3 irrigating solutions were used for biomechanical preparation. After 72 hours, a second harvesting was performed, also under aseptic conditions. The number of colony forming units (cfu) was counted with a stereomicroscope under reflected light. Castor oil and 0.5% sodium hypochlorite presented similar antimicrobial activities for the reduction of the anaerobe number, S. mutans and streptococci; however, the papaine gel showed lower activity. We conclude that both castor oil and sodium hypochlorite are effective as antimicrobial agents and can be used in the treatment of root canals with pulpal necrosis.

Adolescent↗