Rodrigo Nunes Rached

ORCID: 0000-0003-4667-6762
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About
Contact & Profiles
Research Areas
  • Dental materials and restorations
  • Dental Implant Techniques and Outcomes
  • Dental Erosion and Treatment
  • Dental Research and COVID-19
  • Endodontics and Root Canal Treatments
  • Dental Health and Care Utilization
  • Orthodontics and Dentofacial Orthopedics
  • Oral microbiology and periodontitis research
  • Dental Anxiety and Anesthesia Techniques
  • Dental Radiography and Imaging
  • Temporomandibular Joint Disorders
  • Dental Trauma and Treatments
  • Material Properties and Applications
  • Anatomy and Medical Technology
  • Orthopedic Surgery and Rehabilitation
  • Surgical Simulation and Training
  • Acne and Rosacea Treatments and Effects
  • Structural Analysis of Composite Materials
  • Skin Protection and Aging
  • Orthopaedic implants and arthroplasty
  • Innovations in Concrete and Construction Materials
  • Bone fractures and treatments
  • Health Education and Validation
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Electrodeposition and Electroless Coatings

Pontifícia Universidade Católica do Paraná
2016-2025

In-Q-Tel
2017

Prince Philip Dental Hospital
2013

University of Hong Kong
2013

Universidade Estadual de Campinas (UNICAMP)
2013

Marymount University
2008

Universidade Federal do Paraná
2008

Pontifical Catholic University of Puerto Rico
2007

University of Dental Medicine
2004

Universidade Estadual Paulista (Unesp)
1999

summary The effects of chemical polishing on dental acrylic resin properties are not well clarified. This study evaluated the effect and mechanical residual monomer release (RM), Knoop hardness (KH), transverse strength (TS) surface texture (ST) a heat‐ self‐cured resin. Four groups were formed: GI‐self‐cured resin/mechanical polishing; GII‐self‐cured resin/chemical GIII‐heat‐cured GIV‐heat‐cured polishing. Following procedures, specimens stored in distilled water at 37 °C. KH RM...

10.1046/j.1365-2842.2003.00997.x article EN Journal of Oral Rehabilitation 2002-12-17

Objective The objective was to evaluate the early-stage immunoexpression of markers (COX-2, NF-kB, VEGFR-1 and apoptotic index) related inflammation, angiogenesis, cell survival in tongue dorsum epithelium mice exposed hookah smoke. Materials methods sample consisted Swiss (N = 20), female gender, aged 2 months, approximately 25g each, four groups (n 5) mice: group fresh air smoke for 7, 15, 30 days. Tongues were embedded paraffin. A tissue microarray constructed, immunohistochemistry...

10.1371/journal.pone.0314794 article EN cc-by PLoS ONE 2025-02-26

Purpose : This study evaluated the effect of denture cleansers on surface hardness a base resin, and roughness resin Co‐Cr Ti‐6Al‐4V alloys. Materials Methods Forty‐eight disc‐shaped specimens were fabricated microwave‐cured acrylic each having one alloys attached to its surface. The randomly divided into 6 groups, consisting 8 samples. Specimens exposed three cleansing treatments (polident, manipulation pharmacy cleanser, water) as follows. Group I: + polident; II: manipulation; III: water;...

10.1111/j.1532-849x.2004.04028.x article EN Journal of Prosthodontics 2004-09-01

This study evaluated the influence of chemical surface treatments in repair strength a heat‐cured acrylic resin (Lucitone 550, (LU)). A total 70 specimens were made with LU according to American Dental Association (ADA) specification No. 12. Of these, 14 remained intact and used as control group (GI). 56 selected randomly. These cut middle (10 mm), repaired microwave (Acron MC (AC)), processed oven for 3 min at 500 W. Prior repair, ends received different (GIII = AC monomer dipping/30 s; GIV...

10.1046/j.1365-2842.2001.00666.x article EN Journal of Oral Rehabilitation 2001-04-01

This study quantitatively evaluated the fluorescence intensity of resin composites with different opacities and translucencies determined changes in after accelerated aging, using human enamel dentin as controls. Six microhybrid nanofilled composites, each three shades, were tested. Ten sound incisors used to obtain specimens separately. Fluorescence measurements obtained a spectrophotometer before (baseline) aging at 150 kJ energy for 120 hours. One-way analysis variance (ANOVA)...

10.2341/07-74 article EN Operative Dentistry 2008-02-29

The objective of this study was to determine the degree conversion (DC), hardness (H), and modulus elasticity (E) a dual-cured resin cement, light-cured flowable cured through opaque or translucent ceramic with different exposure times. RelyX ARC (dual), Veneer (light-cured), Filtek Z350 Flow specimens 0.5 mm thick were for 40, 80, 120 seconds 1-mm feldspathic disks (n=10). stored at 37°C 24 hours. Half each specimen used test DC other half H E. determined in Fourier transform infrared...

10.2341/11-134-l article EN Operative Dentistry 2012-02-07

The present study evaluated the effect of training on dental students' ability for matching two different shade guides.The was conducted in 2012. participants were 88 male and female undergraduate students from Brazil Portugal, with or without previous color education vision refractive errors (response rate 73.33%). They asked to match a pair set guides Vita Classical (VC) Vitapan 3D Master (3DM), 20-minutes' rest between each match. sets assembled over neutral gray background under...

10.1111/jerd.12287 article EN Journal of Esthetic and Restorative Dentistry 2017-03-29

Occlusal stabilization splints are the most common treatment for controlling deleterious effects of sleep bruxism. This study aimed to evaluate effectiveness a low-cost, mixed occlusal splint (MOS) compared that rigid splint. A randomized clinical trial was performed on 43 adults both sexes with possible bruxism and satisfactory dental conditions. They were divided into (ROS) (n = 23) MOS 20) groups. Masticatory muscle temporomandibular joint (TMJ) pain intensity (visual analog scale),...

10.1590/1807-3107bor-2024.vol38.0017 article EN cc-by Brazilian Oral Research 2024-01-01

This study evaluated the residual monomer (RM), Knoop hardness (KHN) and transverse strength (TS) of two microwave-cured acrylic resins (Acron MC(R) (A), GC Dent. Ind. Corp., Tokyo, Japan Onda Cryl (O), AO Classico Ltda, São Paulo, Brazil) when processed with an all-type III gypsum moulding technique (G) or a silicone-gypsum (S). One hundred forty four specimens were fabricated equally distributed into groups (AG, AS, OG OS). The TS tests conducted after 48 h water storage, KHN values...

10.1046/j.1365-2842.2001.00684.x article EN Journal of Oral Rehabilitation 2001-05-01

The prevalence of candidosis in denture wearers is as well established its treatment with antifungal agents (AAs). However, little research has been done regarding the effects AAs on base surfaces. Therefore, aim this study was to evaluate fluconazole (FLU), nystatin (NYS) and propolis orabase gel (PRO) poly (methyl-methacrylate) (PMMA) Deionized water without any active component were used control groups. Conventional heat-polymerized (Clássico) microwave-polymerized (Onda Cryl) acrylic...

10.1590/s0103-64402008000300003 article EN cc-by Brazilian Dental Journal 2008-01-01

Recently, mostly as a result of drinking water fluoridation, the number young patients affected by fluorosis increased considerably. This study describes minimally invasive technique, using in-office dental bleaching (35% hydrogen peroxide) and enamel microabrasion (silicon carbide 12% hydrochloric acid)to eliminate like stains. The association techniques was efficient can be recommended good conservative alternative for treatment teeth.

10.17796/jcpd.32.3.20757r27312334u8 article EN Journal of Clinical Pediatric Dentistry 2008-04-01

The aim of the study was to evaluate dentinal tubule occlusion, measuring dentin permeability (Lp) and using different desensitizing agents before after abrasive/erosive challenge. Dentin discs from 42 healthy human third molars were obtained. Minimum Lp measured a smear layer simulation #600 SiC paper maximum an immersion in 0.5 M EDTA. specimens treated with desensitizers: two varnishes (Clinpro XT Varnish-CV, Fluor Protector-FP), paste (Desensibilize Nano P-NP) gel (Oxa Gel-OG). each...

10.1590/0103-6440201700811 article EN cc-by Brazilian Dental Journal 2017-04-01
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