Publications by authors named "Bibiana Perez"
Statement Of Problem: Layered composite resins may adequately mask discolored substrates. However, whether color changes that occur over time affect masking ability is unclear.
Purpose: The purpose of this in vitro study was to investigate the effect of layering and water aging on the masking ability of 2 composite resins.
Background: Tralokinumab was recently approved for the treatment of moderate-to-severe atopic dermatitis (AD) and is the first selective interleukin (IL)-13 inhibitor that specifically neutralizes IL-13 with high affinity.
Objectives: To determine the real-life short-term effectiveness and safety of tralokinumab treatment in patients with moderate-to-severe AD.
Methods: A multicentre retrospective study was conducted including adult patients with moderate-to-severe AD who started tralokinumab treatment from 1 April to 30 June 2022 in 16 Spanish hospitals.
Objective: To map the existing evidence regarding the masking ability of resin composites.
Overview: The literature search was conducted electronically, based on the PRISMA Extension for Scoping Reviews-online protocol at https://osf.io/m2h67/ with no language or time restrictions.
Objective: To evaluate the effect of layering strategy and substrate color on the masking ability of resin composites.
Materials And Methods: A1-shaded specimens from Charisma Diamond and Filtek Z350XT were produced using different layering strategies. Color measurements were made by a reflectance spectrophotometer over A2, C2, A3.
The aim of this study was to evaluate the masking ability of a combined application of opaquers and resin composite over discolored backgrounds: A3, A3.5, C2, C3, and C4. The groups were divided according to the opaquer brand, the number of opaquer coats (one or two), and the thickness of the resin composite layer (0.
View Article and Find Full Text PDFObjective: Evaluate the effectiveness and color stability of bleaching techniques on blood-stained teeth.
Material And Methods: The teeth were stained by blood and allocated to groups: walking bleach, inside/outside, and in-office bleaching. L*, a*, b*, C*, h° color coordinates were measured using a clinical spectrophotometer at baseline, weekly (T1-T2-T3), and at 1-week (T4), 6-months (T5), and 1-year (T6) follow-up evaluations.
Objective: Evaluate the masking ability of bleach-shade resin composites applied by multilayering techniques over colored substrates.
Materials And Methods: Disc-shaped specimens were fabricated from bleach-shade resin composites using different multilayering techniques. Substrates were produced in opaque ceramic discs simulating colored substrates (A2, A3, A3.
Objective: To evaluate color, lightness, chroma, hue, and translucency adjustment potential of resin composites using CIEDE2000 color difference formula.
Methods: Three resin composites (Filtek Universal, Harmonize, and Omnichroma) were tested. Two types of specimens were prepared: an outer base shade with an inner hole filled with test shades and single-composite specimens of all shades.
Article Synopsis
- Pruritus, a common symptom in skin diseases, currently has limited treatment options, highlighting the need for effective animal models to test new drugs.
- Researchers developed an improved mouse model for studying pruritus by using an automated system that tracks both scratching and movement while measuring drug levels in different tissues.
- The study found that oral chloroquine (CQ) doesn't induce pruritus, while subcutaneous CQ can, depending on dosage; the model validated various antipruritic drugs, revealing that some work without central nervous system effects, while others do not.
Article Synopsis
- Hospitalized patients in Buenos Aires showed a 27% prevalence of major depression, with higher rates reported through other screening methods like the PHQ (56%).
- Significant risk factors for depression included female sex, prior psychotropic treatment, heavy smoking, and having more children.
- Depression was most commonly linked to patients with neoplastic, urological, and infectious diseases, while it was less associated with pulmonary, neurological, and hematologic conditions.
Article Synopsis
- - Lipschütz ulcer (LU) is a rare condition primarily seen in prepubertal and pubertal girls, often misdiagnosed as STDs or signs of abuse, leading to significant stress for affected families.
- - The article discusses two cases of LU in twin sisters, marking the first reported instance of the condition affecting two family members.
- - The authors suggest that airborne transmission is the most likely explanation for these cases, indicating a potential infectious nature of LU.
Background: Hepatitis A vaccination is justified in areas with an intermediate endemicity of the infection.
Aim: To estimate the epidemiological impact of hepatitis A infection in Colombia.
Material And Methods: Epidemiological indicators of hepatitis A infection prevalence by age, morbidity by age, and lethality by age were estimated from a literature search.
Introduction: Pityriasis rosea is a self-limited inflammatory condition of the skin that mostly affects healthy children and adolescents. Atypical cases of Pityriasis rosea are fairly common and less readily recognized than typical eruptions, and may pose a diagnostic challenge.
Case Presentation: We report the case of a 12-year-old black child that developed an intense pruritic papular eruption with intense facial involvement that was diagnosed of Pityriasis rosea and resolved after five weeks leaving a slight hyperpigmentation.