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Biomedical subjects

L Checchi

Publications and source records attributed to L Checchi.

At least 37 records · Page 2Linked to original sources

[Normality and pathology of the interdental papilla].

Interdental papilla is the portion of gingiva between two adjacent teeth. It has only recently been correctly described by Cohen. Before this interdental papilla was considered only a gingival trait roughly pyramidal in shape. Furthermore, for a long time, the interdental gingiva function was seen only as deflection of interproximal food debris. Now it is clear that the physiology of the papilla is more complex, that it is a biologic barrier to protect deep periodontal tissues. So it's very important to respect papilla integrity during all dental practice and it may be important to keratinize, by interproximal brushing the col to increase its resistance. Besides, during periodontal disease, the interproximal gingiva changes its morphology and histology, so that it's very useful to analyze it to obtain an exact clinical evaluation of disease.

Gingiva

[Control of postoperative pain in periodontology].

In periodontal surgery 2 long acting local anaesthetics, Bupivacaine and Etidocaine, have been compared to Mepivacaine and Lidocaine with regard to effect upon the immediate postoperative pain. Both long acting solutions were significantly superior to Lidocaine and Mepivacaine.

Acetanilides

Root curettage and gingival repair in periodontitis.

Twelve patients, aged 35 to 60, having adult periodontitis were treated with scaling and root planning performed with ultrasonic and hand scalers. Biopsies were taken, gingival crevicular fluid and clinical parameters were analyzed at different times, and the healing process was monitored. Findings showed a clear correlation between the amount of crevicular fluid and the histological inflammatory pattern, whereas no relationship between crevicular fluid and gingival pocket depth was apparent. In this study, no differences were found in the histological features of the repair process triggered by either type of scaler.

Adult

Hand versus ultrasonic instrumentation in the removal of endotoxins from root surfaces in vitro.

The goal of this study was to determine whether ultrasonic scalers are as effective as curettes in providing fibroblast attachment to the scaled root surfaces. Extracted, peridontally involved teeth were cut along the sagittal plane; then one half of the root was curetted, the other half ultrasonically scaled. In addition, monkey kidney fibroblasts were suspended in a petri dish containing root fragments of the tooth halves. At the same time, control dishes without fragments were mounted. All dishes were treated with radioisotopic techniques. There was no significant difference in fibroblast growth between peridontally involved root surfaces treated using curettes or ultrasonic scalers. Both treatments caused the roots to lose their toxicity. The limitations of ultrasonic scalers in terms of shape, size and awkward handling need to be considered when choosing the approach that best suits each case.

Animals