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Biomedical subjects

C R Nicholson

Publications and source records attributed to C R Nicholson.

34 records · Page 2Linked to original sources
PubMedDate not supplied

A new abrasive applicator for human enamel biopsy procedures.

Experiments were performed that demonstrated that the felt cylinder usually used to obtain abrasive biopsy specimens did not uniformly remove enamel from rounded or irregular enamel surfaces in the window area. A foam-silicone rubber laminate was developed to replace the felt cylinder. This resulted in greater uniformity of abrasion over the enamel surface within the biopsy window area and better operator handling characteristics.

Biopsy↗
PubMedDate not supplied

Fluoride deposition in human enamel in vivo from professionally applied fluoride prophylaxis paste.

Deciduous teeth were collected from children who received professional prophylaxis with an acidulated phosphate-fluoride (APF) or placebo paste and were analyzed to determine fluoride uptake. Enamel fluoride level was increased by the APF paste approximately 300 ppm at a depth of 2.5 micrometers during the first month after the prophylaxis was administered, after which it returned to pretreatment levels.

Acidulated Phosphate Fluoride↗