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Biomedical subjects

L N Baratieri

Publications and source records attributed to L N Baratieri.

13 recordsLinked to original sources
PubMed1994

Influence of acid type (phosphoric or maleic) on the retention of pit and fissure sealant: an in vivo study.

Two hundred twenty permanent young molars in 60 children aged 8 to 13 years received only one application of a light-activated resinous sealant. The retention rate was assessed 6 and 12 months later. The teeth were divided into 2 groups of 110 each. In one of the groups the pits and fissures were etched with 37% phosphoric acid before being sealed (group 1); in the other (group 2) these areas were etched with 10% maleic acid. The retention rate of group 1 was 98.4% at 6 months, and 96.8% at 12 months. Group 2 had retention rates of 97.5% at 6 months and 95% at 12 months. There was no statistically significant difference between the two groups in the two test periods, nor were there differences in the same group at the different periods.

Acid Etching, Dental↗
PubMed1992

Amalgam repair: a case report.

Through the report of a clinical case, the feasibility and advantages of repair and recontouring of complex amalgam restorations are discussed. In this patient, the kind of alloy used for the fractured restoration and the age of the restoration were known factors. Additional mechanical retention was prepared in both the "old" amalgam and the dentin, and the repair was made with a high-copper alloy. The bond at the repair site was stable at the 2.5-year recall examination.

Adult↗
PubMed1992

Composite resin veneers: a new technique.

A new technique for the fabrication of composite resin direct veneers is presented. In this technique, a transparent acrylic resin matrix is fabricated before preparation of the facial surface of the tooth, to allow the adequate reproduction of contour, shape, and surface texture originally exhibited by the tooth. Advantages, as well as limitations, of the procedure are also presented.

Acrylic Resins↗
PubMed1991

The "sandwich" technique as a base for reattachment of dental fragments.

Esthetics and function were restored to a fractured maxillary central incisor by reattaching the tooth fragment with the "sandwich" technique (glass-ionomer cement and composite resin). After 3 years, the tooth showed optimal fragment rehydration, presence of pulpal vitality, absence of sensitivity, and a discrete color alteration in the line between the fragment and the dental remnant.

Acid Etching, Dental↗
PubMed1991

Tensile resistance of complete cast crowns cemented on amalgam foundations retained by amalgapins.

An in vitro study was conducted to examine the influence of the number of remaining cusps and the use of the amalgapin technique on the tensile resistance of complete cast crowns in posterior teeth. Results showed the number of amalgapins and remaining cusps to have no influence on the tensile strength. Failure occurred predominantly at the cemented area (ie, the crown was dislodged from the core).

Crowns↗