Can parental pain catastrophizing influence the relationship between dental caries and pain in early childhood?

OBJECTIVE: Knowledge on the parents' catastrophizing of the children's dental pain is lacking. This study aimed to verify whether parental pain catastrophizing influences the relationship between caries and dental pain in early childhood and if the child's age interacts with this relationship. STUDY DESIGN: A cross-sectional study was carried out with 83 dyads of children and their parents/primary caregivers. The parents answered the Brazilian version of the Pain Catastrophizing Scale-Parents and the Dental Discomfort Questionnaire. The children were examined to measure their caries experience. Correlations, simple mediation, and conditional process analyses were performed. RESULTS: The research participants were mostly male children (50.6%) with a mean age of 38 months (Q1 33.0, Q3 48.0). Most of the parents were mothers (n = 73; 88.0%) and had catastrophic thoughts (80.7%). Perceived dental pain in the child was positively correlated with the child's caries experience and parental pain catastrophizing. The parents' catastrophizing did not mediate the relationship between the caries experience and the pain intensity (a * b = 0.05; the lowest level of the confidence interval: -0.01; upper level of the confidence interval: 0.14). The child's age did not moderate the direct or indirect effect of the caries experience on the pain intensity of the children. CONCLUSION: In early childhood, parental catastrophizing of the children's pain and children's age does not influence the direct relationship between children's caries experience reported by the dentist and children's dental pain reported by parents.

Amnesia after Midazolam and Ketamine Sedation in Children: A Secondary Analysis of a Randomized Controlled Trial.

The incidence of peri-procedural amnesia following procedural sedation in children is unclear and difficult to determine. This study aimed to apply quantitative and qualitative approaches to better understand amnesia following dental sedation of children. After Institutional Review Board Approval, children scheduled for sedation for dental procedures with oral midazolam (OM), oral midazolam and ketamine (OMK), or intranasal midazolam and ketamine (IMK) were recruited for examination of peri-procedural amnesia. Amnesia during the dental session was assessed using a three-stage method, using identification of pictures and an animal toy. On the day following the sedation, primary caregivers answered two questions about their children's memory. One week later, the children received a semi-structured interview. Behavior and level of sedation during the dental session were recorded. Quantitative data were analyzed using descriptive statistics and comparison tests. Qualitative data were analyzed using content analysis. Triangulation was used. Thirty-five children (age: 36 to 76 months) participated in the quantitative analysis. Most children showed amnesia for the dental procedure (82.9%, n = 29/35) and remembered receiving the sedation (82.1%, n = 23/28 for oral administration; 59.3%, n = 16/27 for intranasal administration). The occurrence of amnesia for the dental procedure was slightly higher in the oral midazolam group compared with the other groups (44.8%, n = 13/29 for OM, 13.8%, n = 4/29 for OMK, and 41.4%, n = 12/29 for IMK). Twenty-eight children participated in the qualitative approach. The major theme identified was that some children could remember their procedures in detail. We conclude that peri-procedural amnesia of the dental procedure was common following sedation.

Intranasal Dexmedetomidine Compared to a Combination of Intranasal Dexmedetomidine with Ketamine for Sedation of Children Requiring Dental Treatment: A Randomized Clinical Trial.

Outpatient pediatric sedation is challenging. This study aimed to test intranasal dexmedetomidine efficacy as a single drug or combined with ketamine (DK) to sedate children undergoing dental treatment. Children < 7 years were randomized into dexmedetomidine 2 mcg/kg and ketamine 1 mg/kg (DK) or dexmedetomidine 2.5 mcg/kg (D) groups. Videos from the dental sedation allowed the systematic assessment of children's behavior (primary outcome) according to the Ohio State University Behavioral Rating Scale (OSUBRS). Secondary outcomes were parental and dentist satisfaction, adverse events, and recovery time. The data were analyzed descriptively and through regression models. Participants were 88 children (44 per group; 50 boys). The duration of quiet behavior (OSUBRS) was higher than 50% (DK mean 58.4 [standard deviation 38.1]; D 55.2 [39.1]; p = 0.225). Parents (DK 78.0 [32.2]; D 72.7 [35.1]; p = 0.203) and dentists (KD 62.7 [41.0]; D 62.8 [40.1]; p = 0.339) were overall satisfied. Adverse events occurred in 16 cases (DK n = 10, 62.5%; D n= 6, 37.5%; p = 0.104) and were minor. The median recovery time in the DK group was 1.3 times greater than in group D (p < 0.05). Intranasal sedation with dexmedetomidine alone is equally efficacious and satisfactory for pediatric sedation with fewer adverse events and faster recovery than the DK combination.

A curriculum for behaviour and oral healthcare management for dentally anxious children-Recommendations from the Children Experiencing Dental Anxiety: Collaboration on Research and Education (CEDACORE).

BACKGROUND: Dentists need training in the management of children's anxiety (DA), fear (DF) and behaviour management problems (DBMP) but little is known of their competence on this topic. AIM: To report dentists' opinions and attitudes about protective stabilisation and pharmacological techniques for the management of children with DA/DF/DBMP; to propose a postgraduate curriculum focussing on DA/DF/DBMP. DESIGN: A survey of 301 Brazilian dentists and later a modified Delphi process to outline the curriculum in two phases: (a) face-to-face discussions with 33 early career researchers mentored by six researchers, both from UK and Brazil; (b) online discussions by eight early and senior researchers on the knowledge, experience, and competencies necessary for a specialist in paediatric dentistry in Brazil that should be included in the core curriculum of postgraduate courses. RESULTS: Almost all (99.0%) of the survey respondents provide treatment to children with DA/DF/DBMP, and 91.2% do not systematically diagnose these conditions; 94.3% use protective stabilisation, and 20.0%-30.0% have training in pharmacological techniques. The four-domain framework supporting the proposed curriculum is as follows: DA/DF/DBMP assessment, non-pharmacological and pharmacological approaches, and decision-making. CONCLUSION: Dental curricula should be customised to solve the misconceptions and promote a comprehensive and positive attitude to DA/DF/DBMP by paediatric oral healthcare practitioners.

The use of probiotics for improving lipid profiles in dyslipidemic individuals: an overview protocol.

BACKGROUND: Dyslipidemia is a major risk factor in triggering cardiovascular events, which can lead to the death of millions of people around the world. Thus, several pharmacological and non-pharmacological therapeutic strategies have been developed in recent decades with the objective of improving lipid profiles, including the use of probiotics. Therefore, the purpose of this protocol is to describe the steps that will guide the construction of an overview to demonstrate the scientific evidence of the efficacy of probiotics in improving the lipid profile of dyslipidemic individuals and to propose specific recommendations regarding their use. METHODS: The search will be conducted in the following databases: MEDLINE/PubMed, EMBASE, PROSPERO, Cochrane Library, CINAHL, JBI Database of Systematic Reviews and Implementation Reports, Google Scholar, and CADTH. Reviewers will select systematic evaluations and data analyses from randomized clinical trials that evaluated the effects of probiotics on lipid profiles. The studies will be analyzed for methodology quality by the AMSTAR 2 tool and risk of bias by ROBIS. The data will be extracted by three independent reviewers based on a data extraction sheet, which will include the most relevant variables for the analysis and interpretation of the results. The variables will be categorized and described in narrative form or in tables. DISCUSSION: There are some systematic reviews about the use of probiotics to prevent and/or treat dyslipidemia; however, their outcomes related to the ability of probiotics to improve lipid profiles are conflicting. So, an overview on this topic is needed to clarify this important issue. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42017080328.

Associated factors and persistence of palatal groove in preterm infants: a cohort study.

BACKGROUND: There is a lack of evidence on the relationship between prematurity and palatal abnormalities. The aim of this study was to evaluate the incidence of palatal groove, the associated factors and the persistence time in preterm infants from birth to 24 months of age. METHODS: The children's data, medical history and eating habits were collected using a questionnaire answered by the legal guardian and updated every dental visit. Natal and neonatal data were obtained from the medical records. During the orofacial examination, the presence or absence of a palatal groove was observed. In order to evaluate for associations between independent variables and the palatal groove, descriptive analyses and bivariate analyses were conducted using the Mann-Whitney, Pearson's chi-squared and Fisher's exact tests, when appropriate. The Poisson regression analysis was used to determine risk and protective factors for the occurrence of palatal groove. The significance level was 0.05. For the persistence of palatal groove, a survival analysis was used (Kaplan Meier method). RESULTS: Seventy-four preterm infants were monitored. Palatal groove occurred in n = 19 (25.7 %) and persisted for an average time of 12 months. Bivariate analysis showed a significantly higher occurrence of palatal groove in girls (68.4 % vs 40 % with non-occurrence of palatal groove) as well as in infants that stayed longer in the neonatal intensive care unit (NICU) (median 37 days vs 20 days), that did not have exclusive breastfeeding (94.7 % vs 69.1 %), were intubated (median five days vs one day) or used an orogastric tube (median 33 days vs 15 days). The quantitative data for 'NICU', 'intubation' and 'orogastric tube' were correlated and estimated as risk factors for palatal groove formation in the unadjusted Poisson regression analysis. CONCLUSIONS: Palatal groove occur transiently in approximately one quarter of preterm infants, especially in infants that stay longer in the NICU, are intubated or use an orogastric tube.

Controversies Regarding the Psychometric Properties of the Brief COPE: The Case of the Brazilian-Portuguese Version "COPE Breve".

The Brief Coping Orientation to Problems Experienced (COPE) inventory investigates the different ways in which people respond to stressful situations. Knowledge is lacking regarding the coping strategies and styles of people in developing countries, including Brazil. This study aimed to adapt and validate the Brief COPE to Brazilian Portuguese (named COPE Breve) by focusing on dispositional coping. For the cross-cultural adaptation, the original Brief COPE in English (28 items grouped into 14 subscales) was adapted according to a universalistic approach, following these steps: translation, synthesis, back-translation, analysis by an expert panel, and pretest with 30 participants. Then, 237 adults from the community health service responded to the COPE Breve. Psychometric analyses included reliability and exploratory factor analysis. Most of the 14 subscales from the original Brief COPE exhibited problems related to internal consistency. A Velicer's minimum average partial test (MAP) was performed and pointed out 3 factors. Exploratory factor analysis produced a revised 20-item version with a 3-factor solution: religion and positive reframing, distraction and external support. The psychometric properties of the COPE Breve with three factors were appropriate. Limitations of this study as well as suggestions for future studies are presented. The COPE Breve should be used in Brazilian clinics and investigations, but divergences in its psychometrics should be further explored in other contexts.

Beyond the drugs: nonpharmacologic strategies to optimize procedural care in children.

PURPOSE OF REVIEW: Painful and/or stressful medical procedures mean a substantial burden for sick children. There is good evidence that procedural comfort can be optimized by a comprehensive comfort-directed policy containing the triad of nonpharmacological strategies (NPS) in all cases, timely or preventive procedural analgesia if pain is an issue, and procedural sedation. RECENT FINDINGS: Based both on well-established theoretical frameworks as well as an increasing body of scientific evidence NPS need to be regarded an inextricable part of procedural comfort care. SUMMARY: Procedural comfort care must always start with a child-friendly, nonthreatening environment in which well-being, confidence, and self-efficacy are optimized and maintained. This requires a reconsideration of the medical spaces where we provide care, reduction of sensory stimulation, normalized professional behavior, optimal logistics, and coordination and comfort-directed and age-appropriate verbal and nonverbal expression by professionals. Next, age-appropriate distraction techniques and/or hypnosis should be readily available. NPS are useful for all types of medical and dental procedures and should always precede and accompany procedural sedation. NPS should be embedded into a family-centered, care-directed policy as it has been shown that family-centered care can lead to safer, more personalized, and effective care, improved healthcare experiences and patient outcomes, and more responsive organizations.

Memory effects of sedative drugs in children and adolescents--protocol for a systematic review.

BACKGROUND: Some sedatives used in children and adolescents can affect memory function. Memory impairment of traumatic experience can minimize the chance of future psychological trauma. Knowledge about the potential of different sedatives to produce amnesia can help in the decision-making process of choosing a sedative regimen. The aim of this systematic review is to evaluate the effect of different sedatives on memory of perioperative events in children and adolescents. METHODS/DESIGN: Electronic databases and other sources, such as trial registers, gray literature, and conference abstracts will be searched. Randomized controlled trials will be included that assess memory of perioperative events in children and adolescents 2-19 years old receiving sedative drugs as premedication or as agents for procedural sedation in a medical or dental settings. The outcomes will be loss of memory after and before sedative administration (anterograde and retrograde amnesia). Two independent reviewers will perform screening, study selection, and data extraction. Disagreement at all levels will be resolved by consensus or by involving a third reviewer. Assessment of the risk of bias of included studies will be performed according to "Cochrane Collaboration's Tool for Assessing Risk of Bias in Randomized Trials." Clinical and methodological heterogeneity across studies will be evaluated to determine if it is possible to combine or not combine study results in a meta-analysis. DISCUSSION: To the best of our knowledge, there is no systematic review that specifically addresses this question. Findings from the review will be useful in the decision-making process about the best sedative for minimizing recall of the medical/dental event and possible psychological trauma. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42015017559.

Recognizing preschool children with primary teeth needing dental treatment because of caries-related toothache.

OBJECTIVES: The Dental Discomfort Questionnaire (DDQ), which is an observational instrument that assesses dental pain in preschool children, has not been extensively tested for its ability to identify dental treatment needs in this population. This study aimed to explore the accuracy of the Brazilian version of the DDQ (DDQ-B) to identify preschool children needing dental treatment. METHODS: The participants were 326 children (57.7% boys), aged 15-72 months [mean 49.8, standard deviation (SD) 14.8], who were examined to assess their dental treatment needs at the same time that their parents filled out the DDQ-B. The DDQ-B median score (outcome variable) was compared to the median index of dental treatment needs or categories (nonparametric tests). The area under the receiver operating characteristic (ROC) curve (AUC) and diagnostic tests were performed to test the DDQ-B accuracy for identifying preschoolers with untreated teeth needing dental treatment. The data were analysed using SPSS 19.0, and the significance level was set at 5%. RESULTS: Overall, 326 questionnaires were completed and considered for analyses. Additionally, 63.5% of children had untreated teeth needing dental care. The median DDQ-B score, 2.0 (first-third quartile 1.0-5.0), was positively associated with the median index for needing dental care, 3.0 (0.0-5.0) (ρ = 0.49, P < 0.001). Children with more invasive intervention needs, such as pulp therapy, 5.0 (2.0-7.0), and extraction, 6.0 (4.0-8.5), had the highest DDQ-B scores (P < 0.001). The DDQ-B could identify children with more invasive dental care needs [AUC 0.86, 95% confidence interval (CI) 0.80-0.91, P < 0.001]. A score of 5 or higher was a reliable cut-off point to confirm that children who were screened with caries-related toothache by the DDQ-B do, in fact, have untreated teeth needing dental treatment, especially for pulpal care and extraction. CONCLUSIONS: The DDQ-B is an accurate observational tool for identifying preschool children with dental treatment needs; children who scored 5 or higher require dental care for more invasive procedures.

Factors associated with paediatric dentists' perception of dental pain in pre-schoolers: a mixed-methods study.

BACKGROUND: Children dental pain recognition is pointed as a priority in paediatric dentistry, but little is known about dentists' perception of pre-schoolers' dental pain. AIM: To understand paediatric dentists' viewpoint on dental pain (toothache) in pre-schoolers and to identify the associated factors. DESIGN: Mixed-methods with two phases: (i) preliminary qualitative study (focus group of paediatric dentists), with responses analysed by content analysis and (ii) quantitative survey (self-administered questionnaire answered by 223 paediatric dentists), with the main outcome 'perception' assessed as 'feel or not prepared' to identify a pre-schooler with dental pain. Triangulation was used to discuss the results of each approach. RESULTS: (i) Paediatric dentists can observe dental pain in pre-schoolers when there are normative signs; this pain is related to the changes in a child's behaviour and in dental planning. (ii) Participants were 40.1 ± 8.4 years old, 17.1 ± 8.3years since graduation, 65.9% did not feel prepared to identify a pre-schooler with dental pain. This feeling of unpreparedness was associated with younger specialists (P = 0.01) and less time since graduation (P < 0.01). Triangulation showed a convergence of the qualitative and quantitative approaches. CONCLUSION: Noticing dental pain in pre-schoolers was associated with specialists' experience and the need for visible signs; dentists do not always feel completely prepared to recognise pain in pre-schoolers.

Factors associated with no dental treatment in preschoolers with toothache: a cross-sectional study in outpatient public emergency services.

Many parents rely on emergency services to deal with their children's dental problems, mostly pain and infection associated with dental caries. This cross-sectional study analyzed the factors associated with not doing an oral procedure in preschoolers with toothache attending public dental emergency services. Data were obtained from the clinical files of preschoolers treated at all nine dental emergency centers in Goiania, Brazil, in 2011. Data were children's age and sex, involved teeth, oral procedures, radiography request, medications prescribed and referrals. A total of 531 files of children under 6 years old with toothache out of 1,108 examined were selected. Children's mean age was 4.1 (SD 1.0) years (range 1-5 years) and 51.6% were girls. No oral procedures were performed in 49.2% of cases; in the other 50.8%, most of the oral procedures reported were endodontic intervention and temporary restorations. Primary molars were involved in 48.4% of cases. With the exception of "sex", the independent variables tested in the regression analysis significantly associated with non-performance of oral procedures: age (OR 0.7; 95% CI 0.5-0.8), radiography request (OR 3.8; 95% CI 1.7-8.2), medication prescribed (OR 7.5; 95% CI 4.9-11.5) and patient referred to another service (OR 5.7; 3.0-10.9). Many children with toothache received no oral procedure for pain relief.

Electromyographic analysis of masseter muscle in newborns during suction in breast, bottle or cup feeding.

BACKGROUND: When breastfeeding is difficult or impossible during the neonatal period, an analysis of muscle activity can help determine the best method for substituting it to promote the child's development. The aim of this study was to analyze the electrical activity of the masseter muscle using surface electromyography during suction in term newborns by comparing breastfeeding, bottle and cup feeding. METHODS: An observational, cross-sectional analytical study was carried out on healthy, clinically stable term infants, assigned to receive either breast, or bottle or cup feeding. Setting was a Baby Friendly accredited hospital. Muscle activity was analyzed when each infant showed interest in sucking using surface electromyography. Root mean square averages (RMS) recorded in microvolts were transformed into percentages (normalization) of the reference value. The three groups were compared by ANOVA; the "stepwise" method of the multiple linear regression analysis tested the model which best defined the activity of the masseter muscle in the sample at a significance level of 5%. RESULTS: Participants were 81 full term newborns (27 per group), from 2 to 28 days of life. RMS values were lower for bottle (mean 44.2%, SD 14.1) than breast feeding (mean 58.3%, SD 12.7) (P = 0.003, ANOVA); cup feeding (52.5%, SD 18.2%) was not significantly different (P > 0.05). For every gram of weight increase, RMS increased by 0.010 units. CONCLUSIONS: Masseter activity was significantly higher in breastfed newborns than in bottle-fed newborns, who presented the lowest RMS values. Levels of masseter activity during cup-feeding were between those of breast and bottle feeding, and did not significantly differ from either group. This study in healthy full term neonates endorses cup rather than bottle feeding as a temporary substitute for breastfeeding.

Atuação do residente cirurgião-dentista em equipe multiprofissional de atenção hospitalar à saúde materno-Infantil / Activities of a dental resident in a multiprofessional team focused on mother and child health care

A atuação do cirurgião-dentista no ambiente hospitalar é uma perspectiva recente no contexto brasileiro, sendo pouco investigada e sistematicamente relatada. Este estudo descritivo retrospectivo objetivou descrever as atividades desenvolvidas por cirurgiões-dentistas residentes, inseridos em uma equipe multiprofissional de um hospital universitário de referência. Buscou-se os registros e fichas clínicas dos pacientes atendidos pelos residentes em Odontologia da área de Atenção à Saúde Materno-Infantil do Hospital das Clínicas, da Universidade Federal de Goiás, na cidade de Goiânia-GO, entre fevereiro de 2011 e julho de 2012, para caracterizar os pacientes e descrever os procedimentos odontológicos executados. Os dados foram analisados por meio de estatística descritiva. Foram atendidos 740 pacientes no período analisado e 1290 consultas odontológicas foram realizadas. Uma diversidade de alterações sistêmicas foi verificada em 29% da amostra atendida (n=207 pacientes). As atividades educativo-preventivas (n=706) foram mais frequentes do que as atividades curativas (n=66). No período analisado, as atividades multiprofissionais foram realizadas foram estudos de casos (n=18), grupos de educação em saúde (n=49) e reuniões de planejamento multiprofissional (n=17). Concluiu-se que: o cirurgião-dentista pode atuar de forma abrangente no contexto hospitalar; considerando a área materno-infantil, as atividades educativo-preventivas ocorreram em maior número do que as curativas; o cirurgião-dentista deve ser estimulado, desde a graduação, a compreender os aspectos diferencias do contexto hospitalar no planejamento do tratamento odontológico e no trabalho multiprofissional.

The responsibility of the dentist in the hospital environment is a recent perspective in the Brazilian context, and this subject is rarely systematically investigated and reported. This retrospective descriptive study aimed to describe the activities performed by dental residents, entered into a multidisciplinary team of a university hospital. We selected records of patients seen by dental residents in the area Maternal and Child Health, in the Clinical Hospital, Federal University of Goiás, Goiânia-GO, between February 2011 and July 2012, to characterize them and describe dental procedures performed. Data were analyzed using descriptive statistics. A total of 740 patients were seen in that specific period and 1,290 dental consultations were held. A variety of systemic disorders were observed in 29% of the sample (n = 207 patients). Educative-preventive activities (n = 706) were more frequent than curative activities (n = 66). Over that period, the multidisciplinary activities were case studies (n = 18), heal the education for particular groups (n = 49), and planning meetings (n = 17). We concluded that: dentists have a broad spectrum of activities in hospitals; regarding the maternal and child health, educational and preventive activities were more frequent than therapeutic ones; dentists should be encouraged since undergraduation to understand the aspects of the hospital context that influence in treatment planning and multidisciplinary work.

Dental students' perceptions of community-based education: a retrospective study at a dental school in Brazil.

Community-based educational activities have been introduced into health education programs across the world. However, research on students' perceptions of their experiences in these settings has been limited. The objectives of this study were to assess a group of Brazilian dental students' views of their experiences in a service-learning program focusing on pediatric dental care and to explore changes in their perceptions over the course of the program. Data were collected from fifty-five fourth-year dental students, who submitted a total of 185 reports at four points in time. The students spent sixteen of the 128 hours of their pediatric dentistry course in community-based education developing activities linked to pediatric dental care. Two professors rated each report as a positive or negative experience (Kappa 0.7) and recorded whether the students' reports reflected one or more of five types of response. The response types concerned dental treatment practice, multidisciplinary activities, observation of infant/toddler consultations, commitment of the outreach health team, and change of plans due to technical problems. The data showed that the students had a positive first impression after a short stay in a community-service program, but there was a decrease in the students' positive experiences over time (p<0.001). The students' perceptions of the outreach health team as "being not committed" (OR 6.82, 95 percent CI 2.12-21.90) and experiences of a "no change of plans due to technical problems" (OR 0.09, 95 percent CI 0.04-0.20) associated with negative student experiences.

Factors related to postoperative discomfort in young children following dental rehabilitation under general anesthesia.

PURPOSE: This study, conducted in ambulatory surgical centers, was a response to queries from pediatric dentists who wondered if postoperative discomfort in their patients treated for early childhood caries under general anesthesia was related to specific dental procedures. The purpose of this study was to identify factors related to the occurrence and severity of postoperative discomfort. METHODS: Subjects were children younger than 7 years old. The faces, legs, activity, cry, consolability pain assessment tool measured discomfort immediately postoperatively; the dental discomfort questionnaire (DDQ-8) measured discomfort preoperatively and after treatment. Data was analyzed with bivariate tests and hierarchical linear multiple regression. RESULTS: Of the 160 participants (52.9±15.0 months old), approximately 51% had preoperative dental discomfort (DDQ-8 score=>3). The proportion with discomfort had significantly decreased to 27% by days 2 to 5. Immediate discomfort in recovery was influenced by number of crowns and space maintainers and inversely by the length of postoperative sleep. Dental discomfort in the first week postoperatively was predicted by amount of preoperative discomfort, length of sleep in recovery, and not resuming a regular diet on Day 1. CONCLUSION: In these children, discomfort after treatment was mild, decreased over time, and, other than immediately postoperatively, was not related to specific dental procedures.

Ação antimicrobiana de medicações intracanal sobre dentina infectada de dentes decíduos e permanentes

Objetivo: o objetivo deste estudo foi avaliar a efetividade antimicrobiana de medicações intracanal em dentina infectada de dentes decíduos e permanentes. Métodos:blocos de dentina foram inoculados com Enterococcus faecalis a cada 72 horas durante 60 dias; após, foram irrigados,secos e completamente preenchidos com uma das misturas a seguir: 1) pó de hidróxido de cálcio, própolis e propilenoglicol, 2) pó de hidróxido de cálcio e propilenoglicol,3) pó de hidróxido de cálcio e água destilada,4) própolis e propilenoglicol, 5) própolis e água destilada.Após 30 dias, as amostras foram lavadas com água destilada esterilizada, imersas em Letheen broth e incubadas por 48 horas a 37ºC. Resultados e Conclusão: a hipótese de que a associação do hidróxido de cálcio com própolis poderia ser mais eficaz do que os outros medicamentos não foi confirmada, pois os resultados indicaram que todas as misturas testadas não foram capazes de inibir o biofilme de E. faecalis, tanto nos blocos de dentina de dentes decíduos como permanentes

Mesiodistal root angulation of permanent teeth in children with mixed dentition and normal occlusion

OBJECTIVE: There is little information regarding the mesiodistal angulation of permanent teeth in mixed dentition. The aim of this study was to evaluate mesiodistal root angulation of permanent incisors, canines and first molars of 100 Brazilian children, using a new horizontal reference plane based on the midpoint of the intercuspation of primary canines and permanent first molars in panoramic radiographs during the mixed-dentition phase. MATERIAL AND METHODS: Children were equally divided between the genders with a mean age of 8.9 years (SD=0.76), normal occlusion and no eruptive disturbances. RESULTS: The angulation of the permanent maxillary first molars was close to the vertical, whereas the mandibular molars presented approximately 25 degrees of distal root angulation. The maxillary canines were the most distally angulated teeth, whereas the permanent mandibular canines were vertically positioned. The evaluation of the anterior maxillary area showed vertical position of permanent lateral, and central incisors with a slight distal angulation, whereas the permanent mandibular incisors tended to a mesial radicular convergence. CONCLUSIONS: The proposed reference line could be useful in mixed dentition root angulation evaluation; there was a slight asymmetry in the mesiodistal angulation among homologous teeth, and also a small variation between the male and the female groups, but no difference between 8-and 10-year-old children.

Mesiodistal root angulation of permanent teeth in children with mixed dentition and normal occlusion.

OBJECTIVE: There is little information regarding the mesiodistal angulation of permanent teeth in mixed dentition. The aim of this study was to evaluate mesiodistal root angulation of permanent incisors, canines and first molars of 100 Brazilian children, using a new horizontal reference plane based on the midpoint of the intercuspation of primary canines and permanent first molars in panoramic radiographs during the mixed-dentition phase. MATERIAL AND METHODS: Children were equally divided between the genders with a mean age of 8.9 years (SD=0.76), normal occlusion and no eruptive disturbances. RESULTS: The angulation of the permanent maxillary first molars was close to the vertical, whereas the mandibular molars presented approximately 25 degrees of distal root angulation. The maxillary canines were the most distally angulated teeth, whereas the permanent mandibular canines were vertically positioned. The evaluation of the anterior maxillary area showed vertical position of permanent lateral, and central incisors with a slight distal angulation, whereas the permanent mandibular incisors tended to a mesial radicular convergence. CONCLUSIONS: The proposed reference line could be useful in mixed dentition root angulation evaluation; there was a slight asymmetry in the mesiodistal angulation among homologous teeth, and also a small variation between the male and the female groups, but no difference between 8-and 10-year-old children.

Dental sedation by dentists: a view from anesthesiologists working in central Western Brazil.

BACKGROUND: Anesthesia care has been provided by diverse health professionals worldwide, but little is known about anesthesiologists' views about this. Using a survey, we sought the opinions of a group of Brazilian anesthesiologists regarding nitrous oxide/oxygen and oral minimal/moderate sedation performed by dentists. METHODS: A 3-part postal questionnaire was sent to 206 physician anesthesiologists working in the state of Goias, in Central Western Brazil. Part 1 consisted of 4 questions describing respondents' characteristics: gender, time elapsed since completion of the residency program, and experience in providing sedation and general anesthesia for dental treatment. In Part 2, respondents were asked to give their opinions on 11 statements about sedation performed by dentists. Possible responses ranged from total disagreement to total agreement (minimum score = 11 and maximum score = 55). Part 3 was a section for general comments. Data were analyzed by k-means clusters, chi(2), and Student's t-test. RESULTS: The response rate was 53.8% (111 questionnaires). Most anesthesiologists (85.6%) had rarely or never provided sedation or general anesthesia for dental treatment, and 92.8% disagreed with the statement that dentists can administer moderate sedation in the dental office. Two clusters representing more favorable (n = 21) or less favorable (n = 90) opinions were established. Anesthesiologists in the "less favorable" group had more experience with dental sedation (P = 0.006) and dental general anesthesia (P = 0.008) than those in the "more favorable" group. Gender and time elapsed since residency completion did not significantly affect anesthesiologists' opinions. CONCLUSIONS: Many anesthesiologists in Central Western Brazil do not sedate dental patients and are not confident that dentists are able to do it. Dental sedation is an issue that still needs to be clarified in this region; the respective roles of physicians and dentists need to be determined to benefit the population.