Uxua Ortecho Zuta

ORCID: 0000-0002-2922-3609
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About
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Research Areas
  • Dental Anxiety and Anesthesia Techniques
  • Dental Erosion and Treatment
  • Dental materials and restorations
  • Endodontics and Root Canal Treatments
  • Laser Applications in Dentistry and Medicine
  • Bone and Dental Protein Studies
  • Cultural Heritage Materials Analysis
  • Periodontal Regeneration and Treatments
  • Dental Health and Care Utilization
  • Oral microbiology and periodontitis research
  • Vanadium and Halogenation Chemistry
  • Dyeing and Modifying Textile Fibers
  • Bone health and treatments
  • Legal and Policy Issues
  • Thermoregulation and physiological responses

American Academy of Arts and Sciences
2023

British Academy
2023

John Wiley & Sons (United States)
2023

Hudson Institute
2023

Moss Landing Marine Laboratories
2023

Universidade Estadual Paulista (Unesp)
2018-2022

Centro Universitário de Araraquara
2018-2022

Universidade de São Paulo
2018

Objective This study was designed for the chemical activation of a 35% hydrogen peroxide (H2O2) bleaching gel to increase its whitening effectiveness and reduce toxicity. Methodology First, - associated or not with ferrous sulfate (FS), manganese chloride (MC), peroxidase (PR), catalase (CT) applied (3x 15 min) enamel/dentin discs adapted artificial pulp chambers. Then, odontoblast-like MDPC-23 cells were exposed 1 h extracts (culture medium + components released from product), assessment...

10.1590/1678-7757-2018-0453 article EN cc-by Journal of Applied Oral Science 2019-01-01

The aim of this study was to evaluate the effect horseradish peroxidase (HRP) on release free radicals, bleaching effectiveness, and indirect cytotoxicity a 35% hydrogen peroxide (HP) gel.First, HP degradation rates radical were evaluated for in contact or not with HRP (10 mg/mL). gel associated then applied (3 × 15 minutes) enamel/dentin discs adapted artificial pulp chambers, culture medium dentin surfaces (extract) collected exposed cultured odontoblast-like cells. Membrane damage...

10.2341/17-276-l article EN Operative Dentistry 2018-11-16

Pigments in tooth structures affect the diffusion of H2O2 through enamel and dentin. The bleaching methodology can be impacted.Objective: aim this study was to evaluate influence presence pigments on trans-enamel trans-dentin hydrogen peroxide (H2O2) its cytotoxicity after carrying out an in-office therapy.Methods Materials: A gel with 35% applied for 45 minutes (three times 15 minutes) dentin discs (n=6), either previously submitted intrinsic pigmentation protocol a concentrated solution...

10.2341/19-013-l article EN Operative Dentistry 2020-06-09

Abstract Evaluate the kinetics of hydrogen peroxide (H 2 O ) degradation, esthetic efficacy and cytotoxicity a bleaching gel with 35%H applied on enamel previously covered or not polymeric nanofibrillar scaffold (SNan), primer catalyst (PPol), both. Standardized enamel/dentin discs (n = 128) obtained from bovine teeth were adapted to pulp chambers. After covering products, was for 45 min, establishing following groups: G1: no treatment (negative control); G2: (positive G3: SNan; G4: PPol;...

10.1111/jerd.12805 article EN Journal of Esthetic and Restorative Dentistry 2021-07-12

This study aimed to evaluate the esthetic efficacy, cytotoxicity, and kinetics of decomposition hydrogen peroxide (H2O2) present in a commercial bleaching gel with 35% H2O2 (BG35%) chemically activated manganese oxide (MnO2).After incorporating 2 mg/mL, 6 10 mg/mL MnO2 into BG35%, stability pH temperature products were analyzed. To assess efficacy (ΔE ΔWI), BG35%s applied for 45 minutes on enamel/dentin discs (DiE/D). BG35% or no treatment used as positive (PC) negative (NC) controls,...

10.2341/20-257-l article EN Operative Dentistry 2022-07-01

Abstract Objective Evaluate the influence of a polymeric catalyst primer (PCP) on esthetic efficacy (EE), degradation kinetics hydrogen peroxide (H 2 O ), and trans‐amelodentinal cytotoxicity (TC) bleaching gels. Materials Methods The following groups were established: G1: No treatment (NC, negative control); G2: PCP; G3: 10% H ; G4: PCP + G5: 20% G6: G7: 35% (positive G8: . To determine EE, enamel/dentin discs (E/DDs) stained subjected or not to protocols for 45 min. assess TC, E/DDs...

10.1111/jerd.12972 article EN Journal of Esthetic and Restorative Dentistry 2022-10-04

O objetivo desse estudo foi avaliar o potencial bioativo da sinvastatina (SV), aplicada por diferentes periodos sobre celulas polpa dental humana (HDPCs). Para isto, HDPCs em 80% de confluencia (n=6) foram tratadas com meio osteogenico suplementado 0,01 µM SV pelos 24 h, 72 h ou continuamente ate 21 dias. No controle negativo, as mantidas osteogenico. A viabilidade celular (MTT) avaliada 1, 3, 7, 14 e dias, a deposicao matriz mineralizada (alizarin red) apos dias cultivo celular. Os dados...

10.36065/robrac.v26i77.1175 article PT Revista Odontológica do Brasil Central 2017-06-12

Objetivo: Avaliar a citotoxicidade de um agente clareador contendo 2% gluconato calcio (GC) sobre celulas pulpares humanas (HDPCs). Materiais e Metodos: Discos esmalte-dentina adaptados em câmaras artificiais (CPAs) foram posicionados compartimentos forma que dentina permaneceu imersa meio cultura, enquanto o esmalte foi submetido ao clareamento com geis 20% H 2 O ou nao GC, durante 1x 45, 1x15 1x5 minutos. No controle positivo realizado 35% aplicado por 45 minutos, sendo no negativo nenhum...

10.36065/robrac.v26i77.1174 article PT Revista Odontológica do Brasil Central 2017-06-12
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