Distribution of stress on TMJ disc induced by use of chincup therapy: assessment by the finite element method.

Objective: To assess the distribution of stress produced on TMJ disc by chincup therapy, by means of the finite element method.

Methods: a simplified three-dimensional TMJ disc model was developed by using Rhinoceros 3D software, and exported to ANSYS software. A 4.

Patients' report of discomfort and pain during debonding of orthodontic brackets: a comparative study of two methods.

Aim: To examine the level of discomfort and pain reported by patients during debonding of orthodontic metallic brackets by comparing two of the most popular methods, since discomfort can negatively influence patients' motivation to undergo orthodontic treatment.

Methods: This split-mouth designed study involved 37 patients. Two methods were used for bracket removal: a lift-off debonding instrument and a ligature-cutting plier.