A influência do sorriso gengival no vedamentos labial

Ideally the smile should expose minimal gingival, therefore patients with gummy smile and passive eruption altered or excessive marginal gingivae, usually excessive gingival display because incomplete anatomical crown exposure is present. If the maxillary incisor show at rest is optimal, active upper incisor intrusion should not be iniciated. To achieve a smile with minimal gingival exposure, the anatomic crown should be fully exposed by surgical crown lengthening. Precise determination of the location of cementoenamel junction prior to surgery, precise placement of incisions and correct establish of biological width are necessary in order to achive this goal. One protocol is decribed and clinical results from 15 brazilian subjects, after three years post surgery are showed

Relação do polimorfismo BDNF val66met e níveis periféricos de BDNF com a doença de Parkinson e sua sintomatologia

Neurodegenerative diseases are frequently studied due to the increasing number of cases associated with the populational ageing and to the impact on the conditions on the quality of life. Parkinson’s disease (DP) is the second most frequent neurodegenerative disease. Despite the fact that its etiology is not completely understood, it is known that DP is caused by environmental and genetic factors. Thus, the investigation of etiologic factors and mechanisms responsible for the changes that lead to DP may help early diagnostic and prevention. A possible association between DP and the common polymorphism of Brain Derived Neurotrophic Factor (BDNF) G196A (Val66Met) has been suggested by different studies with contrasting results. For this reason, the aim of this study is to investigate if the BDNF Val66Met polymorphism is related to susceptibility to DP in a cohort of Brazilian patients. Additionaly, we verify if the presence of the polymorphism implies in alterations in the BDNF whole blood concentrations, as well as variations in symptomatology. The sample comprised Brazilian patients accompanied by the neurology service of the Onofre Lopes University Hospital (HUOL) and healthy controls (CTRL). The motor aspects of DP were evaluated by Hoehn e Yahr Scale (HY), Unified Parkinson’s Disease Rating Scale (UPDRS) and Schwab & England Scale (SE). For the evaluation of non-motor symptoms were used the following instruments: Frontal Assessment Battery (BAF), Mini-Mental State Examination (MEEM), Beck Depression Inventory (IDB) and the Beck Anxiety Inventory (IAB). Blood samples were collected for BDNF Val66Met polymorphism genotyping and BDNF whole blood measurement. As expected, DP patients performed worse in motor, cognitive and emotional battery of questionnaires. Alleles distribution between DP and CTRL was not significantly different, but the A/G genotype was significantly associated with a protector factor for DP. In contrast, the G/G genotype was significantly associated with depression and anxiety development in DP patients. However, BDNF concentrations were not different between genotypes or groups. This is the first study of genetic association of this polymorphism with DP in Brazilian subjects and the first one that associate A/G genotype with protection against DP.

Qual é a sua tribo? O uso do TAI online no desvelamento de conhecimentos sociais ocultos

The Implicit Association Test (IAT) has succeeded in accessing mental phenomena hardly exposed through self-report and explicit measures well known in the traditional studies on psychology. Although this measurement technique is among the most consistent in international publications, the few articles in Brazil have not deepened on theoretical issues that underlie the practice. This created a gap between the spread of this measure in the country and the production seen in international laboratories, both at quantitative and qualitative terms. In this context, the online labs implemented in several countries, including Brazil, created unique opportunities to overcome these disparities. Our work sought theoretical and conceptual clarification, contextualized to the historical development of the IAT and its online version, displaying affordably an unprecedented presentation of the virtual tool adapted to the Brazilian public. In a second step, we investigated empirically the data obtained by the Brazilian electronic portal "Countries", analyzing the degree of implicit and explicit nationalism of 2271 Brazilian subjects collected from early 2009 to late 2014. Our goal was to determine whether the data results obtained in a time of major sporting confrontation (FIFA World Cup 2010 and 2014) differ from periods when the tournament did not happen. Analyzes showed differences on the eve of the sporting confrontation, when the increase in the implicit nationalism was clearly superior, even with no effect by self-reports. In an independent analysis of a cultural context, there is an oscillation of explicit nationalism over the years, but not for the implicit action. In addition, it was found in women greater degree of implicit and explicit nationalism than in men, with both sexes presenting their preferences towards Brazil. In an end section, we suggest that nationalism may be a by-product of universal mental mechanisms that evolved to identify of the belonging group categorization, corroborating with the group favoritism. We propose that the intensification of the group preference on the eve of the competition has as its ancestral function strengthen the cohesion of the group in preparation to confrontational situations. We pointed out the need for studies on the differences between the sexes in matters relating to group membership belonging. It was expected largest nationalist attitudes in men reflecting the maintenance of cohesive groups in ancient societies. Thus, it appears a singular importance impart the traditional TAI studies with its online version for future investigations of human behavior in various areas of knowledge.

Qual é a sua tribo? O uso do TAI online no desvelamento de conhecimentos sociais ocultos

The Implicit Association Test (IAT) has succeeded in accessing mental phenomena hardly exposed through self-report and explicit measures well known in the traditional studies on psychology. Although this measurement technique is among the most consistent in international publications, the few articles in Brazil have not deepened on theoretical issues that underlie the practice. This created a gap between the spread of this measure in the country and the production seen in international laboratories, both at quantitative and qualitative terms. In this context, the online labs implemented in several countries, including Brazil, created unique opportunities to overcome these disparities. Our work sought theoretical and conceptual clarification, contextualized to the historical development of the IAT and its online version, displaying affordably an unprecedented presentation of the virtual tool adapted to the Brazilian public. In a second step, we investigated empirically the data obtained by the Brazilian electronic portal "Countries", analyzing the degree of implicit and explicit nationalism of 2271 Brazilian subjects collected from early 2009 to late 2014. Our goal was to determine whether the data results obtained in a time of major sporting confrontation (FIFA World Cup 2010 and 2014) differ from periods when the tournament did not happen. Analyzes showed differences on the eve of the sporting confrontation, when the increase in the implicit nationalism was clearly superior, even with no effect by self-reports. In an independent analysis of a cultural context, there is an oscillation of explicit nationalism over the years, but not for the implicit action. In addition, it was found in women greater degree of implicit and explicit nationalism than in men, with both sexes presenting their preferences towards Brazil. In an end section, we suggest that nationalism may be a by-product of universal mental mechanisms that evolved to identify of the belonging group categorization, corroborating with the group favoritism. We propose that the intensification of the group preference on the eve of the competition has as its ancestral function strengthen the cohesion of the group in preparation to confrontational situations. We pointed out the need for studies on the differences between the sexes in matters relating to group membership belonging. It was expected largest nationalist attitudes in men reflecting the maintenance of cohesive groups in ancient societies. Thus, it appears a singular importance impart the traditional TAI studies with its online version for future investigations of human behavior in various areas of knowledge.

Dream characteristics in a Brazilian sample: an online survey focusing on lucid dreaming

During sleep, humans experience the offline images and sensations that we call dreams, which are typically emotional and lacking in rational judgment of their bizarreness. However, during lucid dreaming (LD), subjects know that they are dreaming, and may control oneiric content. Dreaming and LD features have been studied in North Americans, Europeans and Asians, but not among Brazilians, the largest population in Latin America. Here we investigated dreams and LD characteristics in a Brazilian sample (n=3,427; median age=25 years) through an online survey. The subjects reported recalling dreams at least once a week (76%), and that dreams typically depicted actions (93%), known people (92%), sounds/voices (78%), and colored images (76%). The oneiric content was associated with plans for the upcoming days (37%), memories of the previous day (13%), or unrelated to the dreamer (30%). Nightmares usually depicted anxiety/fear (65%), being stalked (48%), or other unpleasant sensations(47%). These data corroborate Freudian notion of day residue in dreams, and suggest that dreams and nightmares are simulations of life situations that are related to our psychobiological integrity. Regarding LD, we observed that 77% of the subjects experienced LD at least once in life (44% up to 10 episodes ever), and for 48% LD subjectively lasted less than 1 min. LD frequency correlated weakly with dream recall frequency (r =0.20,p< 0.01), and LD control was rare (29%). LD occurrence was facilitated when subjects did not need to wake up early (38%), a situation that increases rapid eye movement sleep (REMS) duration, or when subjects were under stress (30%), which increases REMS transitions into waking. These results indicate that LD is relatively ubiquitous but rare, unstable, difficult to control, and facilitated by increases in REMS duration and transitions to wake state. Together with LD incidence in USA, Europe and Asia, our data from Latin America strengthen the notion that LD is a general phenomenon of the human species.

Dream characteristics in a Brazilian sample: an online survey focusing on lucid dreaming

During sleep, humans experience the offline images and sensations that we call dreams, which are typically emotional and lacking in rational judgment of their bizarreness. However, during lucid dreaming (LD), subjects know that they are dreaming, and may control oneiric content. Dreaming and LD features have been studied in North Americans, Europeans and Asians, but not among Brazilians, the largest population in Latin America. Here we investigated dreams and LD characteristics in a Brazilian sample (n=3,427; median age=25 years) through an online survey. The subjects reported recalling dreams at least once a week (76%), and that dreams typically depicted actions (93%), known people (92%), sounds/voices (78%), and colored images (76%). The oneiric content was associated with plans for the upcoming days (37%), memories of the previous day (13%), or unrelated to the dreamer (30%). Nightmares usually depicted anxiety/fear (65%), being stalked (48%), or other unpleasant sensations(47%). These data corroborate Freudian notion of day residue in dreams, and suggest that dreams and nightmares are simulations of life situations that are related to our psychobiological integrity. Regarding LD, we observed that 77% of the subjects experienced LD at least once in life (44% up to 10 episodes ever), and for 48% LD subjectively lasted less than 1 min. LD frequency correlated weakly with dream recall frequency (r =0.20,p< 0.01), and LD control was rare (29%). LD occurrence was facilitated when subjects did not need to wake up early (38%), a situation that increases rapid eye movement sleep (REMS) duration, or when subjects were under stress (30%), which increases REMS transitions into waking. These results indicate that LD is relatively ubiquitous but rare, unstable, difficult to control, and facilitated by increases in REMS duration and transitions to wake state. Together with LD incidence in USA, Europe and Asia, our data from Latin America strengthen the notion that LD is a general phenomenon of the human species.