Sterilization Effect of Wet Oxygen Plasma in the Bubbling Method.

A new low-temperature sterilization method to replace the ethylene oxide gas sterilization is needed. Strong bactericidal effects of OH and O2H radicals are well known. The purpose of this study was to evaluate the sterilization effect of wet oxygen ("O2+H2O") plasma in the bubbling method, confirming the effect of humidity.

[Planning guidelines for prosthodontic treatment].

In recent years "practice guidelines" based on EBM techniques have even been attracting attention at a societal level, and guidelines modeled after the procedure for preparing practice guideline (described at http://www.niph.go.

A new dental unit for both patients in wheelchairs and general patients.

Objective: To develop a dental unit to accommodate both patients in wheelchairs and general patients, and to evaluate the acceptability of the new chair for patients and dentists.

Design: To integrate a unit for patients in wheelchairs and a unit for general patients into a single dental unit.

Results: (1) The newly developed dental unit could be used for both patients in wheelchairs and general patients and could be installed in nearly the same space as occupied by a conventional dental unit.

Inhibitory effect of sorbitol on sugar metabolism of Streptococcus mutans in vitro and on acid production in dental plaque in vivo.

This study was conducted to find out whether sorbitol inhibits the sugar metabolism of Streptococcus mutans in vitro and the acid production in dental plaque in vivo. S. mutans NCIB 11723 was anaerobically grown in sorbitol-containing medium.

Blocking effect of serotonin on beta-adrenoceptor activity in follicle-enclosed Xenopus oocytes.

The effects of serotonin (5-HT) on a beta-adrenergic response were studied, using the voltage clamp technique, in Xenopus laevis oocytes surrounded by their follicular cells. noradrenaline induced marked hyperpolarization, with a specific increase in the permeability of the membrane toward K+. Application of 10 microM 5-HT had little effect on the resting membrane, but significantly depressed the response to 0.