A new technical approach for immediate cleansing and decontamination was studied. Control of cleansing was observed using macroscopic and microscopic (S.E.M.) examinations on different instruments currently used in dentistry. Antiseptic solution was tested regarding four bacterial strains representative of the normal oral flora. The synergistic action of the combined solution plus pressure was effective for removal of debris before they dry. Antiseptic solution was bacteriostatic and at concentration level recommended by the manufacturer, viable colonies were not detected.

Chlorhexidine↗

PubMedDate not supplied

["Tooth mortality" in a Marseille S.C.T.D. The effect of periodontal disease: comparison with some results of a national epidemiological study].

1,247 avulsions have been noted for a year in the S.C.T.D. (tooth, age and sex of the patient). 44.6% were caused by tooth decay. However periodontal disease was responsible for 39.5% of tooth avulsions. The tooth lost because of periodontal disease were in most part extracted after 40 years. A weakness of some type of teeth regarding tooth mortality may be quoted. A sexual dimorphism of tooth mortality was present in the studied population.

Adolescent↗

PubMedDate not supplied

[Initial colonization of composite resins by Streptococcus mutans: the influence of polishing].

The purpose of the present investigation was to compare the in vitro initial colonization of Streptococcus mutans on three composite materials (HERCULITE, FILLISPAD and SILIFILL) regarding the polishing procedure (SOFT-LEX, 3M). Surface roughness and bacterial deposit were analyzed by SEM and the deposit was estimated using a modified method of SKJORLAND. Results indicated that surface roughness was reduced by the polishing procedure, but this roughness was more important at the periphery of restorations. Bacterial deposit was strongly reduced on the polished materials but bacteria not adhered in the same number on the composites with a comparable surface roughness: the accumulation of bacteria was less important on FILLISPAD materials. It is concluded that the initial colonization of resin composites was not only dependent of surface roughness.

Composite Resins↗

PubMedDate not supplied

[Local anesthetics].

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4-Aminobenzoic Acid↗

PubMedDate not supplied

[Anatomopathological results following penetration of a ZOE/trioxymethylene paste into the periapical tissue].

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Formaldehyde↗

PubMedDate not supplied

Antibacterial action of dental cements: an in vitro study.

The antibacterial activity of seven commercially available dental cements (Eugespad, Dentical, Dycal, Expaliner, PR. Scell, PR. Base Cement, PR. Lining Cement) against 1) bacterial species implicated in carious lesions or in dental plaque (Actinomyces israelii ATCC 10048, Actinomyces viscosus ATCC 19246, Streptococcus mutans ATCC 25175, Streptococcus sanguis ATCC 10557) and 2) bacterial samples of stimulated saliva was studied, in vitro, using a modification of the method of McComb and Ericson (1987). Dycal and Expaliner did not affect bacteria whereas the other dental cements displayed some antibacterial properties. Eugespad was the most active followed by PR. Base Cement + PR. Scell + Dentical and by PR. Lining Cement. Associated with mechanical and biocompatibility properties, these differences could be taken into account when choosing a dental cement for clinical use.

Actinomyces↗