Histologic Evaluation of Effect of Three Wavelengths of Diode Laser on Human Gingival Margins.

Available evidence suggests that the response of the intervened tissue is directly linked to the effects generated by the cutting instrument used. To determine the histological findings in gingival tissue margins excised through gingivectomies performed using 450 nm, 940 nm, and 980 nm diode lasers. The present study aimed to determine the histological findings in gingival tissue margins excised through gingivectomies performed using 450 nm, 940 nm, and 980 nm diode lasers.

Laser-Assisted Lip Repositioning Surgery: A Modification to The Conventional Technique.

The lip repositioning surgical technique arose with the objective of correcting and harmonizing the act of smiling. Since the conventional technique was published, some modifications of the technique have been proposed in order to counteract postoperative recurrence and to achieve the best esthetic appearance of the smile. The objective of this paper was to describe the laser-assisted lip repositioning technique (laser-assisted LRS) with a 940nm diode laser and 2780nm Er,Cr: YSGG, as a modification to the conventional lip repositioning technique, for the treatment of a gummy smile.

Quantification of matrix metalloproteinases MMP-8 and MMP-9 in gingival overgrowth.

Background: Matrix metalloproteinases (MMPs) are proteolytic enzymes involved in extracellular matrix remodeling of all body tissues, including oral tissues such as gingival tissue. Expression levels of MMPs are widely studied as important biomarkers for explaining the biochemical mechanisms and evolution of many oral diseases.

Objective: Demonstrate the sensitivity, reproducibility, repeatability, and robustness of the dot blot assay for the relative quantification of MMP-8 and MMP-9 expression levels in patients with GO associated with orthodontic treatment.

Protein carbonylation associated with nickel liberation in orthodontic gingival overgrowth.

Objective: To determine nickel levels and their impact on protein carbonylation in gum samples from patients with gingival overgrowth by orthodontic treatment.

Design: A retrospective observational study with 33 patients divided into three groups. Group 1 patients with gingival overgrowth by orthodontic appliances; group 2 patients without gingival overgrowth but with a history of orthodontic treatment; group 3 patients without overgrowth and history of orthodontic appliances.

Musculoskeletal alterations associated factors physical and environmental in dental students.

Objective: To describe the musculoskeletal disorders and association with physical and environmental in students of Dentistry.

Methods: Cross sectional study. Simple random sampling was conducted obtaining a proportional sample of 182 students per semester.