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Biomedical subjects

R G Caffesse

Publications and source records attributed to R G Caffesse.

At least 181 records · Page 10Linked to original sources
PubMedDate not supplied

Clinical and histologic evaluation of submerged and nonsubmerged hydroxyapatite-coated implants: a preliminary study in dogs.

A clinical and histologic study was performed to evaluate the differences in the healing of submerged and nonsubmerged hydroxyapatite-coated 2-piece implants. Three foxhounds were used for this evaluation. Mandibular premolars 1, 2, 3, and 4 were extracted. Three months later, 2 submerged implants were placed on one side of the mandible, and 2 nonsubmerged implants were placed on the other side of the mandible. After 3 months of healing, the submerged implants were exposed, and a third implant was placed on each side of the mandible in a nonsubmerged procedure. Clinical parameters were recorded, the animals were sacrificed 6 months after placement of the first implants, and histologic and histometric analyses were performed. Results of the evaluation of the clinical parameters showed only minor differences among the different treatment groups. Regarding the percentage of bone-to-implant contact of the different treatment groups, the submerged implants showed a bone-to-implant contact of 63.4%, the nonsubmerged implants showed 70.3% contact, and the late nonsubmerged implants demonstrated a bone-to-implant contact of 58.7%. The average distance from the implant neck to the first bone-to-implant contact (fBIC) for submerged implants was 0.58 mm, for nonsubmerged implants it was 1.09 mm, and it was 1.13 mm for late nonsubmerged implants. The vertical distance between the gingival margin and the apical extent of the junctional epithelium (aJE) varied from 1.14 mm to 1.28 mm in the different groups. The distance from the aJE to fBIC was 1.00 mm for the submerged group, 1.08 mm for the nonsubmerged group, and 1.00 mm for the late nonsubmerged group. Generally, it can be concluded that the clinical and the histologic behavior of submerged or nonsubmerged 2-piece implants utilized in this experiment do not differ.

Analysis of Variance↗
PubMedDate not supplied

The effect of a Microsil-containing dentifrice in the prevention and treatment of gingivitis.

The purpose of this study was to determine if a Microsil-containing dentifrice (Minnetonka, Inc., Minnetonka, Minnesota) could enhance the therapeutic effectiveness of toothbrushing relative to plaque control as well as the prevention and treatment of gingivitis. Volunteer 12 through 14 year-old elementary school students were divided into two experimental groups and one control group. Following baseline examination, scorings were made after consecutive forty-five day experimental periods which were separated by an interim prophylaxis. One of the Microsil-containing dentifrices was found to significantly reduce existing plaque and gingivitis levels at specific locations. The same experimental dentifrice was also shown in specific areas to permit better maintenance of the reduced gingivitis levels achieved following prophylaxis. It was concluded that the results obtained with a Microsil-containing dentifrice were encouraging in that any additional effect in reducing plaque and controlling gingivitis would be especially beneficial for young individuals in whom gingivitis is such a common finding.

Adolescent↗