Publications by authors named "Karen Milare Seicento Aidar"
Bleaching with biocatalysts and violet LED: a randomized clinical trial using a hybrid design with parallel-group and split-mouth approaches : Violet LED and biocatalysts in in-office whitening: a split-mouth trial.
Clin Oral Investig
August 2025
Objective: To compare conventional 35% hydrogen peroxide whitening for 45 min with test therapies lasting 15 min using a polymeric scaffold, peroxidase, and violet LED.
Materials And Methods: Sixty patients were randomized into three groups (n = 20): TC45 (35% HP for 45'), T15 (35% HP for 15'), and TT (polycaprolactone scaffold + 35% HP with peroxidase for 15'). One hemiarch was irradiated with violet LED (L) (8 cycles of 1 min, with 30-second intervals).
Objective: This prospective case series aimed to clinically evaluate the bleaching effect, spontaneous tooth sensitivity, and variation in the thermal sensation threshold of different groups of teeth undergoing in-office bleaching.
Method And Materials: Ten patients received conventional bleaching treatment: 35% hydrogen peroxide with three bleaching sessions of 45 minutes, evaluating color change (∆E and ∆E00), Whitening Index (WID), and tooth sensitivity (visual analog scale). Thermal stimulus-generating devices were used to simulate sensitivity caused by low temperatures through quantitative sensory tests.
Article Synopsis
- The study aimed to examine how the structure of different tooth types affects the effectiveness of hydrogen peroxide (H2O2) whitening treatments.
- Using CT images from five patients, researchers measured the thickness of tooth enamel and the volume of the dental pulp across four groups: lower incisors, upper incisors, canines, and premolars.
- Results showed that thinner teeth, like lower incisors, allowed for more H2O2 diffusion, leading to faster color changes, while thicker teeth like premolars experienced less diffusion and required more treatment sessions for whitening.