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Biomedical subjects

W W Barkmeier

Publications and source records attributed to W W Barkmeier.

At least 73 records · Page 4Linked to original sources
PubMed1980

Temperature rise in the pulp chamber caused by twist drills.

Pin channel preparations with twist drills have the potential to produce a temperature increase in the pulp chamber. This temperature increase is related to twist drill diameter, length (depth of channel preparation), and rotational speed.

Dental Instruments↗
PubMed1979

Technique for an immediate temporary fixed tooth replacement.

A clinical technique for the immediate replacement of an extracted anterior tooth was presented. The clinical crown of the patient's extracted tooth was used as a pontic by attaching it to the adjacent teeth with acid-etch bonded resin. This technique provides a practical and esthetic immediate fixed tooth replacement that requires minimum materials and time.

Acid Etching, Dental↗
PubMed1979

Self-shearing retentive pins: a laboratory evaluation of pin channel penetration before shearing.

This laboratory study determined the depth reached by self-shearing pins in dentin pin channels. Pin channels were prepared with the self-limiting shoulder twist drill for each of the four systems tested. Mean channel depth reached for the various pin systems was: Stabilok (small), 2.31 mm; Stabilok (medium), 1.78 mm; Reten Pin, 1.40 mm; and TMS (Regular), 2.04 mm. A coparison was also made by calculating the mean percent of penetration in relation to the depth of prepared pin channel: Stabilok (small), 92.50%; Stabilok (medium), 63.62%; Reten Pin, 66.67%; and TMS (Regular) 81.75%.

Dental Instruments↗