Effect of GaAIAs laser on reactional dentinogenesis induction in human teeth.

Objective: This study investigated the biomodulatory effect of the gallium- aluminum-arsenate laser (GaAlAs) in pulp cells on reactional dentinogenesis, and on the expression of collagen type III (Col III), tenascin (TN), and fibronectin (FN) in irradiated dental tissues and controls (not irradiated).

Background Data: Several studies suggest a biomodulatory influence of low-intensity laser radiation in the inflammatory and reparative processes of biological tissues.

Methods: Sixteen human premolar teeth were selected (after extraction due to orthodontal reasons) and divided into irradiated and control groups.

Evaluation of a modified hemimandibulectomy for treatment of oral neoplasms in dogs.

A modified hemimandibulectomy was performed for treatment of oral neoplasms in 21 dogs. Intra- and postoperative evaluations included assessment of procedure difficulty, complications, mastication, cosmesis, and the time interval between surgery and recurrence of the neoplasm or clinical evidence of metastasis. Malignant melanoma was the most common neoplasm treated using this technique.