Use of Lasers and Piezoelectric in Intraoral Surgery.

Laser therapy has been delivering good results for more than 30 years. Therapeutic effects are seen due to its ability to stimulate cell proliferation, revascularization, cell regeneration, local microcirculation, and vascular permeability; leading to edema reduction and analgesic effects. The piezoelectric system has been used in several surgeries recently, following the trend of minimally invasive surgery.

Work-related voice disorder.

Introduction: Dysphonia is the main symptom of the disorders of oral communication. However, voice disorders also present with other symptoms such as difficulty in maintaining the voice (asthenia), vocal fatigue, variation in habitual vocal fundamental frequency, hoarseness, lack of vocal volume and projection, loss of vocal efficiency, and weakness when speaking. There are several proposals for the etiologic classification of dysphonia: functional, organofunctional, organic, and work-related voice disorder (WRVD).

Tracheal suture in rats with hypothyroidism: wound healing study.

Purpose: To evaluate the influence of hypothyroidism in tracheal wound healing process.

Methods: A controlled study was designed with 48 male Wistar rats, divided into two groups: study and control groups. In the first one hypothyroidism was surgically induced and 10 weeks after, a tracheal opening followed by suture was performed in both groups, subdivided into 7, 14, and 21 days in accordance with the date of animals death.

Topical mitomycin C effect on swine vocal folds healing.

Unlabelled: Several adjuvant therapies to surgery have been used to modulate the healing process of vocal folds, including topic mitomycin (MTC).

Aim: to evaluate the effect of topical MTC in the healing process of vocal folds 30 days after the exeresis of a mucosal fragment with CO2 laser in a swine model (control group without mitomycin and study group with topical MTC), with collagen deposition measurement.

Study Type: prospective experimental in swine.