Marcelo Werneck Barata Araujo

Marcelo Werneck Barata Araujo
Johnson & Johnson | J&J · Global CHC Scientific & Professional Affairs

DDS, MS, PhD

About

30
Publications
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573
Citations

Publications

Publications (30)
Article
Full-text available
This cross-over study was conducted to assess the germ-killing efficacy of an essential oil mouthrinse (EOM) by determining the blood levels of microorganisms associated with induced bacteremia and investigating the prevalence of this event in Brazilians with mild-to-moderate gingivitis. Thirty four (31.19%) subjects positive for bacteremia induced...
Conference Paper
Objective: Different formulations of antiseptic mouthrinses are found in ex-US markets. Active ingredients such as essential oils (EOs), 0.05% cetylpyridinium-chloride (CPC), and combination of both, are found to be efficacious for the control of plaque and gingivitis, when in the presence of alcohol (8%). This randomized, examiner-blind, parallel-...
Conference Paper
Objective: The objective of this randomized, double-blind, parallel, controlled clinical study was to compare the antiplaque and antigingivitis efficacy of an essential oil-containing mouthrinse (LA - LISTERINE® Antiseptic) to a 0.075% Cetylpyridinium chloride mouthrinse (CP – Colgate® Plax) using a two week experimental gingivitis model, with a 5%...
Conference Paper
Objective: The primary objective of this single-center, controlled, parallel designed 6 month clinical study was to compare the antiplaque and the antigingivitis potential of an alcohol-free essential oil-containing mouthrinse (AFEO) to a 5% hydroalcohol negative control (C). The secondary objective of this study was to compare an alcohol-free esse...
Conference Paper
Objective: Dental plaque consists of bacterial and salivary components aggregated on multiple surfaces of teeth, tongue and other structures of the oral cavity. An abundance of dental plaque visible to the naked eye can be considered to be aesthetically unpleasing. However, such subjective description has not been scientifically compared to a valid...
Conference Paper
Objectives: The experimental gingivitis model has previously been used as a predictive model for the long term use of mouthrinses (Amini et al, 2009). Essential oil containing mouthrinses significantly reduce supragingival plaque and gingivitis (Charles et al, 2001). The purpose of this study was to determine the Antiplaque/Antigingivitis efficacy...
Conference Paper
Objectives: The objective of this IRB approved, randomized, single-center, controlled, two week cross-over clinical trial was to assess the germ-kill efficacy of twice daily rinsing using an essential oil-containing mouthrinse (EOM) by determining the treatment effect on oral microorganisms levels in the blood resulting from an induced bacteremic e...
Conference Paper
Objective: The purpose of this IRB approved, double-blind, placebo-controlled, randomized, cross-over study was to assess the effect of twice daily rinsing with an essential oil mouthrinse (EOM) in reducing bloodstream bacteria after inducing a standardized bacteremic challenge. Methods: Ninety-eight individuals with moderate gingivitis were screen...
Conference Paper
Objective: The purpose of this double-blinded, placebo-controlled, randomized, cross-over study was to determine the short-term efficacy of an essential oil mouthrinse (EOM LISTERINE Antiseptic) on the levels of oral microorganisms in supragingival plaque. Methods: After IRB approval, 98 individuals with moderate gingivitis were screened and 30 wer...
Article
This pilot study was designed to assess the effect of an essential oil antiseptic mouthrinse (EOM) in reducing bloodstream bacteria after chewing an apple. From a panel of 200, we screened 62 individuals with mild-to-moderate gingivitis. Twenty-two individuals who showed a bacteraemia after chewing an apple were enrolled. Subjects were recalled, in...
Conference Paper
Objectives: This six-month randomized, observer-blind, parallel, controlled clinical study was conducted to compare an essential oil-containing (LTC) antiseptic mouthrinse (LISTERINE TOTAL CARE ANTISEPTIC, Johnson & Johnson Consumer Companies Inc., Morris Plains, USA) and a 0.05% cetylpyridinium chloride (CPC) mouthrinse (Colgate Plax, Colgate-Palm...
Article
To evaluate the antiplaque/antigingivitis effectiveness of an essential oils containing mouthrinse as compared to a 0.05% cetylpyridinium chloride mouthrinse. Generally healthy subjects with mild to moderate levels of plaque and gingivitis participated in a 6-month, examiner-blind, single centre, randomised, parallel-group controlled clinical trial...
Article
Full-text available
The objective of this randomized, examiner blind, parallel group, controlled clinical trial was to compare the antiplaque and antigingivitis efficacy of an essential oil-containing mouthrinse (EO) to two mouthrinses containing 0.05% Cetylpyridinium Chloride (CPC), one with alcohol and one alcohol-free, using a two-week experimental gingivitis valid...
Article
Full-text available
This study evaluated the effect of periodontal therapy plus amalgam overhang removal (PT+AOR) on periodontal status and the presence of Actinobacillus actinomycetemcomitans and Streptococcus mutans and compared two microbiological sampling techniques. Molar teeth with Class II overhang restorations were selected as the test group, and homologous so...
Article
Full-text available
This cross-sectional study determined the periodontal status and its association with risk factors in a convenience sample of 588 subjects seen at the dental clinic of Guarulhos University from 1999 to 2003. To reach the study objectives, geographic, demographic and behavioral characteristics, as well as, oral and periodontal parameters were tabula...
Article
The main concern associated with the tunneling procedure is the development of root caries on the furcation area post-treatment. The objective of this study was to evaluate the periodontal conditions and the prevalence of root caries in tunneled molars. The study sample comprised 30 tunneled teeth (mean tunneling age = 3.6 years) in 18 subjects who...
Article
Purpose: The purpose of this study was to investigate the surface roughness (Ra) of different esthetic restorative materials following simulated toothbrushing using different whitening dentifrices. Materials and methods: Cylinders of Esthet-X (Dentsply Caulk, Milford, DE, USA), Durafil VS (Heraeus Kulzer, Wehrheim, Germany), and Vitremer (3M ESP...
Article
The aim of the present study was to determine, in vitro, the antimicrobial effect of plant extracts and propolis in saliva samples of 25 periodontally healthy subjects and 25 subjects with chronic periodontitis. One saliva sample from each subject was collected and spread on the surface of trypticase soy agar plates. Paper filter discs containing c...
Article
To determine the level of knowledge, attitude and practice among Iranian dental health care professionals towards droplet and airborne isolation precautions, in Shiraz, Iran. A survey was developed and distributed to 152 Iranian dental professionals (faculty and students) from Shiraz University School of Medical Sciences, School of Dentistry, Shira...
Article
Tissue reactions to 4 different implant surfaces were evaluated in regard to the development and progression of ligature-induced peri-implantitis. In 6 male mongrel dogs, a total of 36 dental implants with different surfaces (9 titanium plasma-sprayed, 9 hydroxyapatite-coated, 9 acid-etched, and 9 commercially pure titanium) were placed 3 months af...
Article
Individuals undergoing treatment for alcohol use disorders exhibit increased risk for impaired oral health. We conducted a study to assess oral health and demographic characteristics of inpatients under treatment for alcohol use disorders. Thirty-four inpatients, 24 male and 10 female, with diverse ethnicity, were recruited in a rehabilitation cent...
Article
Full-text available
The aims of this double-blind randomized clinical trial were to evaluate the presence of periodontal pathogens and the clinical response of periodontal pockets treatment to scaling and root planing (SRP) associated with subgingival minocycline (SM). A total of 36 subjects, 26 to 60 years old (40.7 +/- 9.1), who had been previously diagnosed with ch...
Article
Probing depth (PD) is a commonly used method to determine periodontal disease severity in both treating and evaluating disease progression. Agreement among examiners collecting data in scientific investigations is necessary to establish reliable criteria for determining levels of periodontal attachment loss. The objective of our study was to evalua...
Article
Health care providers are at risk for infection with bloodborne pathogens, including hepatitis B virus, human immunodeficiency virus, and hepatitis C virus. Recommended infection control practices are applicable to all settings in which dental treatment is provided. Dentists remain at low risk for occupationally acquired human immunodeficiency viru...
Conference Paper
Introduction: This six-month randomized, observer-blind, parallel, controlled clinical study was conducted to compare an essential oil-containing (EO) antiseptic mouthrinse (LISTERINE Antiseptic) and a 0.05% cetylpyridinium chloride (CPC) rinse (Colgate Plax) on inhibition of plaque and gingivitis development. Usual toothbrushing and placebo rinsin...
Conference Paper
Introduction: The objective of this randomized, single-center, placebo-controlled, 2-week cross-over study was to evaluate the subgingival germ-killing efficacy of an essential oil-containing mouthrinse, as determined by levels of bloodstream bacteria induced by eating an apple. Method: Bacteremia was induced by mastication using an apple insult. B...
Article
Thesis (Ph. D.)--State University of New York at Buffalo, 2003. Includes bibliographical references. Photocopy of typescript.

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