Influence of osteoporosis on the oral health of menopausal women.

This article presents current research data that describe the etiology and prevalence of factors associated with osteoporosis and its manifestations in the oral cavity. To educate their patients, dentists should be knowledgeable about the oral manifestations of osteoporosis and should collaborate with other health care providers to reduce the possible destructive effects of osteoporosis on their patients' oral health.

Oral health status of Asian and Hispanic women. A pilot study.

Data on the oral health of Asian and Hispanic women are rare in the dental literature. The objective of this study was to investigate the oral health status and needs of women from these two groups. Forty newly registered women from each group were the subjects of the study.

Occurrence of torus palatinus and mandibularis among women of different ethnic groups.

Purpose: To detect the presence of tori in women of different ethnic groups residing in the metropolitan area of Washington, D.C., USA.

Microleakage evaluation of two newly introduced hybrid glass ionomer cements.

This study evaluated the microleakage of Photac-Fil Aplicap (ESPE) and Fuji II LC (GC) glass ionomer cements. Polished Class V restorations were compared with non-polished restorations. No measurable microleakage was detected after thermocycling and staining in India ink dye.

Comparison of thermoplasticized gutta-percha root canal obturation technique to the lateral condensation.

This in vitro study compared the quality of filling the root canal by the conventional lateral condensation technique to the fill by the commercially available thermoplasticized gutta-percha method. Subjective radiographic evaluation of density, presence of voids, and extent of fill were made for each of the 20 freshly extracted maxillary central incisors used for this study. Voids were noted in 10% of the laterally condensed canals, versus 40% of those obturated with the thermoplasticized gutta-percha.

Evaluation of the apical condensation of gutta-percha by a tapered/calibrated spreader/plugger.

This study compared a tapered, calibrated spreader/plugger instrument (M-series) to noncalibrated spreaders and pluggers in achieving apical condensation of gutta-percha in 20 single-rooted human teeth. The distances between the tip of the instruments and the tip of the master gutta-percha were measured. Results showed no significant difference in apical penetration between the D-11 spreader and finger plugger, also no difference between the M-spreader and M-plugger.

Microleakage comparison of apical seal of plastic versus metal Thermafil root canal obturators.

This study compared the apical seal of plastic versus metal Thermafil obturators in extracted human teeth. The obturated teeth were evaluated radiographically for the extent and adaptation of the filling obturator. No difference was seen between plastic and metal for over- or underfilling.

Microleakage comparison of dentin bonding systems with glass ionomer.

Glass-ionomer cements have been suggested as substitutes for dentin-bonded composites. This investigation was designed to compare microleakage of glass-ionomer restorations with that of dentin-bonded composite restorations. Eighty extracted human molars were used in this study.

Comparison of conventional root canal obturation techniques with Thermafil obturators.

This study compared microleakage of Thermafil Obturators to the single cone technique in Lexan blocks simulating root canals (n = 20) stained with Prussian blue dye. The microleakage of Thermafil and laterally condensed extracted human teeth was also investigated after the teeth were stained with India ink or Prussian blue dye over 1- or 2-wk dye immersion periods. In Lexan blocks there was no statistical difference in mean leakage between the single cone technique and Thermafil.

Pulpal response to tricalcium phosphate as a capping agent.

The purpose of this study was to evaluate tricalcium phosphate (TCP) as a pulp-capping agent. Two adult male beagle dogs were used for this investigation. Class I cavities were prepared in the posterior teeth and Class V cavities in the anterior teeth.

Comparison of microleakage of experimental and selected commercially available bonding system.

The microleakages of composite restorations bonded with two commercial and two experimental systems were observed. A high-viscosity condensable composite and a low-viscosity composite were used as the restorative materials. The bonding systems used were two widely accepted commercial brands and two experimental systems, one containing ferric oxalate and the other aluminum oxalate.

Bonding to tooth structure: clinical and biological considerations.

Marginal leakage of tooth restorations is a problem well known to dental practitioners and researchers. The development of agents that provide strong and stable adhesive bonds to both dentine and enamel in the oral environment is a challenge to scientists. The critical area in resin restorations is at the gingival margin where the resin is in apposition to dentine and/or cementum.

Dilaceration of permanent upper lateral incisors: frequency, direction, and endodontic treatment implications.

A sample of 480 extracted permanent upper lateral incisors was visually examined and the direction of dilaceration was recorded. It was found that 52.1 percent of the roots of these teeth were distolabially dilacerated.

Effective surface sterilization of gutta-percha points.

A bacteriologic investigation was conducted to determine the sterilizing effectiveness of various germicidal endodontic irrigants on gutta-percha points. It was found that most effective in surface sterilization was a 5-minute treatment using sodium hypochlorite, Zephiran, and hydrogen peroxide in concentrations of 4.50 percent, 0.