Validation of an educational comic book to guide conducts in situations of dental trauma.

Background/aim: Childhood dental trauma poses a prevalent concern, and the limited knowledge of lay caregivers toward the needed immediate actions can adversely affect a child's well-being. This study aimed to create and validate an educational comic book for lay individuals, designed to guide immediate actions in dental trauma cases, and assess its effects toward enhancing reader knowledge.

Methodology: The four-stage study involved: (1) Literature review and script development; (2) Version 1 of the comic book creation (including illustrations, layout, and design) and Flesch Readability Index (FI) calculation; (3) Version 1 validation by expert judges, assessed by the Content Validity Index (CVI); (4) Version 1 refinement based on the judges' feedback, recalculation of FI, and a pilot test (CVI) involving lay individuals who validated the final material (Version 2).

Size effect in observational studies in Public Oral Health: importance, calculation and interpretation.

The objective of this study was to analyze the scientific literature in public oral health regarding calculation, presentation, and discussion of the effect size in observational studies. The scientific literature (2015 to 2019) was analyzed regarding: a) general information (journal and guidelines to authors, number of variables and outcomes), b) objective and consistency with sample calculation presentation; c) effect size (presentation, measure used and consistency with data discussion and conclusion). A total of 123 articles from 66 journals were analyzed.

Burnout syndrome in higher education health professionals working in indigenous health in Brazil.

The aim of this study was to investigate the prevalence of burnout syndrome in higher education health professionals working in indigenous health in Brazil, and to identify associated factors. This is an observational, analytical, and cross-sectional study. Data collection was based on the application of a questionnaire (personal profile and MBI-HSS) and included 513 professionals.

Use of Water by Schoolchildren: Impact of Indirectly Supervised Daily Toothbrushing-A Pilot Study.

Aim: This present longitudinal, quantitative, and analytical pilot study evaluated the impact of daily indirectly supervised toothbrushing on water consumption.

Materials And Methods: The study was carried out in a social center that provided care to children aged 5-14 years in Campinas in the state of São Paulo. Calibrated hydrometers were installed on taps used by the children, and the daily volume of water used was measured for 25 school days (T0).

The impact of technological endodontic resources on the training of the general dentist.

Introduction: Technological resources are considered important for the practice and training in endodontics. It is not yet clear the extent of the insertion of these resources in predoctoral dental programmes and the effect of such resources to the general dentist training.

Aim: To evaluate the faculty perception regarding the insertion of technological resources, particularly rotary instruments, and the impact of such resources to the student's learning process graded at the end of predoctoral dental programmes in Brazil by the National Students Performance Exam (ENADE).

Satisfaction of users of Psychosocial Care Centers.

Objective: evaluate the satisfaction of users with the care provided at the Psychosocial Care Centers and its association with clinical and sociodemographic factors.

Method: this cross-sectional study was conducted with 55 users from 5 Psychosocial Care Centers. The sociodemographic and clinical characteristics were obtained through an individual structured interview.

Epidemiological pattern of malocclusion in Brazilian preschoolers.

This study aimed to evaluate the prevalence and distribution profile of malocclusion in Brazilian preschoolers and its association with macro-region, housing, gender, and self-reported race. In total, 6,855 children aged five years participating in the National Oral Health Survey (called SB Brasil 2010) were analyzed. Malocclusion was diagnosed according to the Foster and Hamilton index.

Violence against children and adolescents: profile and tendencies resulting from Law 13.010.

Objective: Describing the profile of reported violence against children and adolescents and draw an essay on the initial effects of Law 13.010 on report patterns.

Method: Analytic study of reported cases on SINAN - Information System on Reportable Harms (from 2013 to 2015) of violence to individuals under 19, in 53 cities of Minas Gerais.

[Socio-demographic aspects related to severity of malocclusion among 12-year-old Brazilian children].

The scope of this study was to characterize malocclusion in 12-year-old Brazilian children and identify associated socio-demographic aspects. It is a cross-sectional and analytical study based on an Oral Health Survey (SB Brasil 2010). A sample of 5,539 was included, among which 41% had some degree of malocclusion according to the Dental Aesthetic Index (DAI).

Children's Menu Diversity: Influence on Fluoride Absorption and Excretion.

Aim: The aim of this study is to determine the influence of children's menu diversity on the absorption and excretion of fluoride.

Materials And Methods: The experimental, longitudinal, quantitative study was carried out in a city without fluoridation in water supply. A total of 16 adult volunteers (>63.

Individual factors associated to malocclusion in adolescents.

The study aimed to identify the severity of malocclusions and associated factors among Brazilian adolescents. Data from 5,445 adolescents participating in the Brazilian Oral Health Survey (SBBrasil 2010) were evaluated, of which 4,276 were included in the study based on the inclusion criteria. The dependent variable was severe and very severe malocclusion, according to the Dental Aesthetic Index (DAI > 30).

Infection prevention and control in dental surgeries in the Pará state prison system in Brazil.

Prison populations have higher levels of bloodborne viruses with consequently higher risks of cross-infection. This study assessed infection prevention and occupational hazards in prison dental surgeries in the Brazilian state of Pará. Investigations were undertaken by a single examiner in 11 prison clinics.

Assessment of the Influence of Meal Type on Fluoride Absorption due to Ingestion of professionally Applied Gels.

Aims: The aim of this study is to assess the influence of eating, prior to application of professionally used gels, on the rate of fluoride absorption due to the ingestion of 1.23% acidulated phosphate fluoride (APF).

Materials And Methods: After fasting for 12 hours, 16 adult volunteers (> 65 kg) ingested two types of meal: Breakfast (n = 8) and Lunch (n = 8).

In Vitro Effects of 2.5% Titanium Tetrafluoride on Streptococcus Mutans and Lactobacillus Casei in Dentin Followed by Self-Etching Adhesive Systems.

The aim was to evaluate the effect of a 2.5% titanium tetrafluoride (TiF4) solution followed by self-etching adhesives against Streptococcus mutans/Sm and Lactobacillus casei/Lc. Four cylindrical-shaped cavities were performed on each dentin surface of 40 third molars and contaminated with Sm or Lc.

Antimicrobial Potential of Papain Chemomechanical Agent on Streptococcus Mutans and Lactobacillus Casei Followed by the Use of Self-Etching Adhesive Systems.

Objective: This study evaluated the antimicrobial effect of papain-based gel (Papacárie/ P) followed by self-etching adhesive systems with MDPB monomer (Clearfil Protect Bond/ PB) and without (Clearfil SE Bond/ Cl) on Streptococcus mutans (Sm) and Lactobacillus casei (Lc).

Study Design: The dentin of twenty human teeth was exposed to prepare four cylindrical cavities in each tooth. The cavities were incubated with Sm or Lc.

In vitro evaluation of calcium and phosphorus concentrations in enamel submitted to an in-office bleaching gel treatment containing calcium.

The aim of this in vitro study was to evaluate the calcium and phosphorus concentrations in enamel surfaces before, during, and after treatment with in-office 35% hydrogen peroxide bleaching agents with 2% calcium gluconate (WCa) or without calcium gluconate (W). Twenty sound human third molars were divided into 2 groups of 10. The bleaching agents were applied to the tooth surfaces in accordance with the manufacturer's instructions: WCa, 40 minutes per day at 3 sessions with 7-day intervals; W, 3 × 15 minutes per day at 3 sessions with 7-day intervals.

Impact of the severity of chronic periodontal disease on quality of life.

We examined the impact of the severity of periodontal disease on quality of life in adults with chronic periodontitis. One hundred patients (age, 30-58 years) who were assisted at the Basic Health Care Unit in the city of Passo Fundo, RS, Brazil underwent clinical examination of all standing teeth, including gingival bleeding on probing, probing depth, and clinical attachment level, and were divided into those with mild/moderate (n = 49; group G1) and severe (n = 51; group G2) chronic periodontitis. The participants were then interviewed, using a structured questionnaire.

Impact of pedagogical method on Brazilian dental students' waste management practice.

The purpose of this study was to conduct a qualitative analysis of waste management practices among a group of Brazilian dental students (n=64) before and after implementing two different pedagogical methods: 1) the students attended a two-hour lecture based on World Health Organization standards; and 2) the students applied the lessons learned in an organized group setting aimed toward raising their awareness about socioenvironmental issues related to waste. All eligible students participated, and the students' learning was evaluated through their answers to a series of essay questions, which were quantitatively measured. Afterwards, the impact of the pedagogical approaches was compared by means of qualitative categorization of wastes generated in clinical activities.

Evaluation of bond strength between leucite-based and lithium disilicate-based ceramics to dentin after cementation with conventional and self-adhesive resin agents.

The aim of this study was to compare the microtensile bond strength of two heat-pressed ceramics (leucite-based--IPS Empress Esthetic/Ivoclar Vivadent, and lithium disilicate-based --IPS e.max Press/Ivoclar Vivadent) to dentin with the use of conventional and self-adhesive resin cements. The occlusal surface of 60 intact human molars was removed and the dentin was exposed.

Influence of preheating the bonding agent of a conventional three-step adhesive system and the light activated resin cement on dentin bond strength.

Aims: to evaluate the influence of preheating the bonding agent (Scotchbond Multipurpose Adhesive/3M ESPE) and the light-activated resin cement (RelyX Venner/3M ESPE) on dentin microtensile bond strength.

Materials And Methods: The exposed flat dentin surface of 40 human third molars were randomly distributed into four groups for cementation (SR Adoro/Ivoclar Vivadent) (n = 10): G1-bond and resin cement, both at room temperature (22°C), G2-bond preheated to 58°C and cement at room temperature (22°C), G3-bond at room temperature (22°C) and the cement preheated to 58°C, G4-bond preheated to 58°C and cement preheated to 58°C. Sticks of dentin/block set measuring approximately 1 mm(2) were obtained and used for the microtensile bond strength test.

Analysis of total microbiota in dentin after mechanical or papain-based chemomechanical caries removal.

Chemomechanical caries removal, when compared with removal using conventional rotary instruments, seems to preserve healthy tooth structure with less trauma to the patient. This study performed in vivo analysis of the total number of microorganisms in dentin after the use of conventional or chemomechanical (papain gel) caries removal methods. Analyses were performed before caries removal (baseline), immediately after caries removal, and 45 days after caries removal and temporary cavity sealing.

Evaluation of roughness and micromorphology of epoxy paint on cobalt-chromium alloy before and after thermal cycling.

It has been suggested that the epoxy paint used to coat metal substrates in industrial electrostatic painting applications could also be used to mask metal clasps in removable dental prostheses (RDP). The purpose of this study was to evaluate both the influence of thermal cycling and the in vitro roughness of a surface after application of epoxy paint, as well as to assess the micromorphology of a cobalt-chromium (CoCr) based metal structure. Sixty test specimens were fabricated from a CoCr alloy.

Influence of mouthguards on the physical performance of soccer players.

Aim: To evaluate the influence of different types of mouthguard (MG) on physical performance of female soccer players.

Material And Methods: The sample was composed of 25 female soccer players from 'Guarani Futebol Clube', age range 18-22 years. For data collection, two tests were performed: agility test (shuttle run) and aerobic capacity and VO2 (Cooper test), in addition to application of a perception questionnaire after wearing mouthguards during the tests.

Influence of pH cycling on the microtensile bond strength of self-etching adhesives containing MDPB and fluoride to dentin and microhardness of enamel and dentin adjacent to restorations.

Purpose: To evaluate the influence of pH cycling on microtensile bond strength (µTBS) and fracture pattern of MDPB- and fluoride-containing self-etching adhesive systems to dentin, and on the cross-sectional Knoop microhardness (CSMH) of enamel and dentin adjacent to restorations.

Materials And Methods: The two-step self-etching adhesive Clearfil SE Bond (SE; Kuraray), the two-step MDPBand fluoride-containing adhesive Clearfil Protect Bond (PB; Kuraray), and the one-step fluoride-containing adhesive One-Up Bond F Plus (OU; Tokuyama) were used to bond resin composite to midcoronal dentin surfaces (for µTBS testing) or to Class V cavities (for CSMH testing). µTBS and CSMH tests were performed after a 15-day period of pH cycling or storage in artificial saliva.

The effects of home-use and in-office bleaching treatments on calcium and phosphorus concentrations in tooth enamel: an in vivo study.

Background: Because the effects of dental bleaching on enamel needs to be clarified in vivo, the authors conducted a study to determine calcium and phosphorus concentrations in enamel after the application of different bleaching treatments.

Methods: The authors applied four agents (10 percent and 20 percent carbamide peroxide [both recommended for home use], 38 percent and 35 percent hydrogen peroxide [both applied in the dental office]) to the enamel of 80 participants, who were divided into four groups of 20. The authors collected enamel microbiopsy specimens from incisors before (baseline), during (seven, 14 and 21 days) and after (seven and 14 days) the bleaching treatments.