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Biomedical subjects

J W Harrison

Publications and source records attributed to J W Harrison.

At least 55 records · Page 3Linked to original sources
PubMed1976

A statistical analysis of anaerobic versus aerobic culturing in endodontic therapy.

Asymptomatic teeth were cultured at four specific stages of endodontic therapy, yielding 148 paired samples. Half of the samples were incubated anaerobically with the use of a new medium, and half were incubated aerobically with the use of a commonly employed endodontic medium. The former proved to be significantly more sensitive in supporting microbial growth from root canals. The results indicate that an aerobic culturing technique alone is not sufficient to reflect the microbiologic status of the canal system.

Aerobiosis↗
PubMed1976

The epithelized oral sinus tract.

Sinus tracts that extended from periapical lesions to the alveolar mucosa were surgically removed and examined microscopically. The results indicate that sinus tracts may be lined with stratified squamous epithelium. More commonly, however, these tracts are lined with granulation tissue.

Dental Fistula↗
PubMed1976

Osteosarcoma associated with metallic implants. Report of two cases in dogs.

This is a report of two dogs in which osteosarcomas arose in association with metallic orthopedic implants. One neoplasm occurred in the distal humerus of a 12-year-old Doberman Pinscher. A stainless steel intramedullary pin had been implanted in the bone 11 years previously. Upon removal, corrosion of the pin was noted. The second neoplasm arose in the proximal tibia of a 12-year-old Irish Wolfhound. Six years previously, a fracture of the tibia had been repaired with a plate and screws made of the same type stainless steel, type 316L, by the same manufacturer. No corrosion appeared to have occured. Infection had not occured in either animal.

Animals↗
PubMed1975

The effect of neutralizing agents on aqueous parachlorophenol.

The effect of possible neutralizing agents on aqueous parachlorophenol were studied. Results indicated that saline, EDTAC, dentin, saliva, prolonged light exposure, and thermal extremes do not appreciably affect the antibacterial properties of aqueous parachlorophenol. The presence of blood and necrotic tissue demonstrated a marked inhibitory effect.

Anti-Infective Agents, Local↗