Bond strength of self-etching primers to enamel and dentin of primary teeth.

Purpose: The objective of this in vitro study was to evaluate the tensile bond strength of three self-etching primers to human primary enamel and dentin.

Methods: Forty (40) freshly extracted primary molars were sectioned bucco-lingually and embedded in self-curing acrylic resin with the facial or lingual surfaces exposed. The specimens were wet ground to 600 grit SiC paper to expose a flat enamel or dentin surface.

Relationship between gap width and recurrent dental caries beneath occlusal margins of amalgam restorations.

This study examines the relationship between gap width and the presence of recurrent dental caries subjacent to occlusal margins of amalgam restorations. The study population consisted of 35 adult patients of the university's dental clinic who were having occlusal amalgam restorations removed solely because of defective margins. In this group, an impression was made recording the width of a clinically detected gap between the amalgam restoration and the adjacent enamel cavosurface.

Physical manifestations of child abuse to the head, face and mouth: a hospital survey.

The incidence of physical injury to the head, face, mouth, and neck of 266 suspected cases of child abuse was studied at Texas Children's Hospital in Houston, Texas, from January 1993 through December 1994. While there was an even distribution of physical abuse by gender, 74.8 percent of the children were under the age of three.

Weakness in mouse masticatory muscles by repetitive contractions with forced lengthening.

The etiology of myofascial tenderness and pain of masticatory muscles in humans is difficult to understand. Parafunctional oral habits such as tooth grinding or vigorous chewing are thought to be factors. The objective of this study was to determine if masticatory muscles are susceptible to weakness and injury induced by repetitive, dynamic, forced-lengthening contractions.

Argon laser irradiation and acidulated phosphate fluoride treatment in caries-like lesion formation in enamel: an in vitro study.

The purpose of this in vitro study was to determine the combined effects of argon laser irradiation (ArI) and acidulated phosphate fluoride treatment (APF) on caries-like lesion formation in human enamel. Each specimen was divided into tooth quarters with each quarter assigned to one of four groups: 1) control; 2) ArI Only; 3) ArI before APF treatment; 4) APF treatment before ArI. After a fluoride-free prophylaxis, acid-resistant varnish was applied to the tooth quarters, leaving sound enamel windows exposed on buccal and lingual surfaces.

Maxillary and mandibular reconstruction using calvarial bone grafts and Branemark implants: a preliminary report.

A review of 24 patients reconstructed with calvarial bone grafts and 93 Branemark implants (Nobelpharma, Chicago, IL) revealed an overall success rate of 91.4%. Two grafting techniques were used.

How cocaine abuse affects post-extraction bleeding.

The effects of cocaine and the relevance of cocaine abuse to clinical dentistry are discussed. Severe bleeding after an extraction is reported.

Review of the literature and report of a case of a dermoid cyst.

This article presents a large dermoid cyst discovered in the floor of the mouth of a young male patient. The lesion was clinically detected by manual palpation and confirmed by the use of magnetic resonance imaging. Treatment of this case was by surgical removal of the dermoid cyst.

In vitro tensile bond strengths of amalgam to treated dentin.

Since amalgam traditionally relies on undercuts in the tooth preparation for retention, extensive tooth structure must be removed for amalgam core build-ups. In contrast, the ideal build-up material would achieve its retention by directly bonding to tooth structure. This study compared tensile bond strengths of amalgam to dentin using All-Bond Liner-FX with three different dentin pretreatment conditions and Amalgambond according to the manufacturer's directions.

Primary reservoirs of Streptococcus mutans and their relationship to caries experience in adults with good oral hygiene.

Primary reservoirs of Streptococcus mutans were identified in a group of 21 adults with intact dentitions and good oral hygiene by obtaining multiple plaque samples from all available tooth surfaces. Routine cultural methods and a rapid plate scoring method employing a 7-point ordinal scale were used to assess S. mutans levels.