Alkasite restorative material for endodontically treated teeth: a randomized controlled pilot study.

Objectives: This study aimed to evaluate the clinical performance of an alkasite restorative material in molars that had undergone root canal treatment. Materials and Methods: The research was registered in Brazilian Registry of Clinical Trials. The randomized clinical trial involved 33 patients, each with at least 1 mandibular molar requiring restoration after receiving endodontic treatment. Patients were randomly assigned to receive either bulk-fill resin composite (Tetric N Ceram Bulk Fill, Ivoclar Vivadent) or the alkasite restorative material (Cention N, Ivoclar Vivadent). Upon completion of the restorations, 3 calibrated professionals utilized the United States Public Health Service criteria to assess various factors, including retention, secondary caries, marginal adaptation, restoration color, marginal pigmentation, and anatomical form. Evaluations were conducted at intervals of 7 days, 6 months, and 17 months. Additionally, the assessment encompassed the presence of radiolucent lines adjacent to the restoration, material deficiencies or excess, contact points, and caries recurrence. The data underwent analysis using the Friedman and Mann-Whitney tests (α = 0.05). Results: After 17 months, the results revealed that the alkasite restorative material exhibited greater wear of anatomical shape compared to the bulk-fill resin composite (p = 0.0189). Furthermore, the alkasite restorative material significantly differed from the natural tooth color in most cases (p = 0.0000). However, no other criteria displayed significant differences between the materials or over time (p > 0.05). Conclusions: The alkasite restorative material (Cention N) emerges as a viable option for restoring endodontically treated teeth, displaying clinically acceptable alterations after a 17-month evaluation period. Trial Registration: Brazilian Registry of Clinical Trials (ReBEC) Identifier: RBR-97kx5jv.

Impact of access cavities on root canal preparation, restorative protocol quality, and fracture resistance of teeth.

The survival of endodontically treated teeth depends on the remaining tooth structure. The aim of this study was to evaluate the impact of different access cavities on root canal preparation, restorative protocol, and fracture resistance of endodontically treated teeth. Fifty-six mandibular molars were divided into control (n=8) and experimental (n=16) groups according to access cavity: Traditional, Conservative, and Truss; and redistributed (n=8) according to instrumentation protocols: Reciproc Blue and R-motion. After, teeth were scanned in micro-CT and then filled and redistributed according to composite resin restoration (n=8): Filtek One BulkFill and Filtek Z350. A new micro-CT scan was performed to analyze the restorative material. Then, samples were submitted to fracture resistance testing and the failure pattern was determined. Data were analyzed using paired T-test, ANOVA, Tukey, and chi-square tests (α=0.05). In Truss, R-Motion promoted less transportation in different thirds of root canals. Higher percentages of voids (5.05%) and filling material (11.7%) were observed in Truss. Fracture resistance values were higher for the control group, followed by Truss, Conservative, and Traditional. The predominant failure pattern was type-II. In Truss, reciprocating instruments with smaller taper showed less canal transportation. Also, Truss provided higher values of fracture resistance, although it presented a higher percentage of voids and remaining filling material. Thus, in Truss, reciprocating files with smaller taper showed less canal transportation, and these cavities provided higher values of fracture resistance, although it presented a higher percentage of voids and remaining filling material.

Terapia de infidelidad: puente para transitar de la devastación a la re-creación de sí y de la relación / Infidelity therapy: a bridge to transition from the devastation to the renovation of oneself and of the relationship

Objetivo: reconocer las vivencias que tuvieron los consultantes en el proceso terapéutico y que favorecieron mantener la relación de pareja luego de una infidelidad. Metodología: estudio cualitativo, fenomenológico-hermenéutico. Se realizaron dos entrevistas semiestructuradas, a tres parejas y una participante; triangulación de la información con un grupo de discusión con terapeutas. Resultados: las reflexiones suscitadas en el espacio terapéutico llevan a una mirada de sí y de la pareja en términos más compasivos, lo que permite que emerjan transformaciones individuales y relacionales que se denominaron: la renovación de la langosta y la transformación del cristal en oro, respectivamente. Los cambios en el pensamiento, acciones y maneras de relacionarse se constituyeron como prácticas de cuidado de sí y de la pareja. Conclusión: la terapia actúa como un "puente" para la recuperación de las parejas, facilita dejar atrás los efectos devastadores de la infidelidad y florecer en un panorama más estético y esperanzador.

Objective: to recognize the experiences that the consultants had in the therapeutic process that favored maintaining the couple's relationship after an infidelity. Methodology: qualitative study, hermeneutical phenomenological. Two semi-structured interviews were conducted with three couples and one participant; triangulation of information with a discussion group with therapists. Results: the reflections raised in the therapeutic space, lead to a look at oneself and the couple in more compassionate terms, which allows individual and relational transformations to emerge that were called: the renewal of the lobster and the transformation from crystal to gold, respectively. The changes in thinking, actions and ways of relating to each other were constituted as self-care and partner-care practices. Conclusion: therapy acts as a "bridge" for the recovery of couples, it makes it easier to leave behind the devastating effects of infidelity and flourish in a more aesthetic and hopeful outlook.

Impact of access cavities on root canal preparation, restorative protocol quality, and fracture resistance of teeth

Abstract The survival of endodontically treated teeth depends on the remaining tooth structure. The aim of this study was to evaluate the impact of different access cavities on root canal preparation, restorative protocol, and fracture resistance of endodontically treated teeth. Fifty-six mandibular molars were divided into control (n=8) and experimental (n=16) groups according to access cavity: Traditional, Conservative, and Truss; and redistributed (n=8) according to instrumentation protocols: Reciproc Blue and R-motion. After, teeth were scanned in micro-CT and then filled and redistributed according to composite resin restoration (n=8): Filtek One BulkFill and Filtek Z350. A new micro-CT scan was performed to analyze the restorative material. Then, samples were submitted to fracture resistance testing and the failure pattern was determined. Data were analyzed using paired T-test, ANOVA, Tukey, and chi-square tests (α=0.05). In Truss, R-Motion promoted less transportation in different thirds of root canals. Higher percentages of voids (5.05%) and filling material (11.7%) were observed in Truss. Fracture resistance values were higher for the control group, followed by Truss, Conservative, and Traditional. The predominant failure pattern was type-II. In Truss, reciprocating instruments with smaller taper showed less canal transportation. Also, Truss provided higher values of fracture resistance, although it presented a higher percentage of voids and remaining filling material. Thus, in Truss, reciprocating files with smaller taper showed less canal transportation, and these cavities provided higher values of fracture resistance, although it presented a higher percentage of voids and remaining filling material.

Terapia de infidelidad: puente para transitar de la devastación a la re-creación de sí y de la relación / Infidelity therapy: a bridge to transition from the devastation to the renovation of oneself and of the relationship

Objetivo: reconocer las vivencias que tuvieron los consultantes en el proceso terapéutico y que favorecieron mantener la relación de pareja luego de una infidelidad. Metodología: estudio cualitativo, fenomenológico-hermenéutico. Se realizaron dos entrevistas semiestructuradas, a tres parejas y una participante; triangulación de la información con un grupo de discusión con terapeutas. Resultados: las reflexiones suscitadas en el espacio terapéutico llevan a una mirada de sí y de la pareja en términos más compasivos, lo que permite que emerjan transformaciones individuales y relacionales que se denominaron: la renovación de la langosta y la transformación del cristal en oro, respectivamente. Los cambios en el pensamiento, acciones y maneras de relacionarse se constituyeron como prácticas de cuidado de sí y de la pareja. Conclusión: la terapia actúa como un "puente" para la recuperación de las parejas, facilita dejar atrás los efectos devastadores de la infidelidad y florecer en un panorama más estético y esperanza.

Objective: to recognize the experiences that the consultants had in the therapeutic process that favored maintaining the couple's relationship after an infidelity. Methodology: qualitative study, hermeneutical phenomenological. Two semi-structured interviews were conducted with three couples and one participant; triangulation of information with a discussion group with therapists. Results: the reflections raised in the therapeutic space, lead to a look at oneself and the couple in more compassionate terms, which allows individual and relational transformations to emerge that were called: the renewal of the lobster and the transformation from crystal to gold, respectively. The changes in thinking, actions and ways of relating to each other were constituted as self-care and partner-care practices. Conclusion: therapy acts as a "bridge" for the recovery of couples, it makes it easier to leave behind the devastating effects of infidelity and flourish in a more aesthetic and hopeful outlook.

Role of upper cervical spine in temporomandibular disorders.

BACKGROUND: Temporomandibular disorders (TMDs) are prevalent multifactorial pathologies in which the actual role of the cervical region position is controversial. OBJECTIVE: To analyze the relationship between the position of the upper cervical rachis and the symptoms of TMD. METHODS: Sixty women were recruited to this study. All of them completed a questionnaire and were subjected to a temporomadibular exploration to create two different groups: a TMD Group (n= 30) - women who suffered TMD symptoms according to the evaluation; and a control group (n= 30) - women who were free from TMD symptoms. Two X-ray examinations were performed in all the women: a lateral one and a frontal one with mouth open to assess the C1-C0 distance and the craniocervical angle. RESULTS: ANOVA showed that the TMD and control women had similar C1-C0 distances and craniocervical angles (p> 0.05). Pearson correlation did not indicate any relationship between the craniocervical position and the symptomatology of TMD (r=- 0.070). CONCLUSIONS: TMD symptomatology is unrelated to alterations in craniocervical position (C0-C1 distance and craniocervical angle). Women with and without TMD showed a similar prevalence of alteration in the craniocervical position.

Nephtyidae (Annelida: Polychaeta) from the Campos Basin, including two new species and a new record.

Members of the marine polychaete family Nephtyidae are commonly found in soft substrates. Their most distinctive characteristic is the presence of interramal branchiae located between the notopodia and neuropodia. In the present study, five species of Nephtyidae: Aglaophamus fabrun sp. nov., Aglaophamus juvenalis (Kinberg, 1866), Inermonephtys inermis (Ehlers, 1887), Inermonephtys soldius sp. nov. and Nephtys squamosa Ehlers, 1887 were found in the Campos Basin, state of Rio de Janeiro, including two new species and a new record for the Brazilian coast. Aglaophamus fabrun sp. nov. has a proboscis with 10 pairs of distal papillae and approximately 20 subdistal papillae in rows, with 3-5 papillae in each row; and lacks an unpaired median papilla; the prostomium has a pair of eyes and a characteristic pigmentation pattern. Inermonephtys soldius sp. nov. has interramal branchiae starting from parapodium 5, and basal papillae starting on chaetiger 6. Inermonephtys inermis is a new record for the Brazilian coast. Descriptions, comments and a key to species of Nephtyidae recorded from Brazil are provided.

A model-Driven Approach to Customize the Vocabulary of Communication Boards: Towards More Humanization of Health Care.

OBJECTIVE: This work presents a Modeling Language and its technological infrastructure to customize the vocabulary of Communication Boards (CB), which are important tools to provide more humanization of health care. METHOD: Using a technological infrastructure based on Model-Driven Development (MDD) approach, our Modelin Language (ML) creates an abstraction layer between users (e.g., health professionals such as an audiologist or speech therapist) and application code. Moreover, the use of a metamodel enables a syntactic corrector for preventing creation of wrong models. RESULTS: Our ML and metamodel enable more autonomy for health professionals in creating customized CB because it abstracts complexities and permits them to deal only with the domain concepts (e.g., vocabulary and patient needs). Additionally, our infrastructure provides a configuration file that can be used to share and reuse models. This way, the vocabulary modelling effort will decrease our time since people share vocabulary models. CONCLUSION: Our study provides an infrastructure that aims to abstract the complexity of CB vocabulary customization, giving more autonomy to health professionals when they need customizing, sharing and reusing vocabularies for CB.

Atividade antimicrobiana residual de pastas base de hidr¢xido de c lcio e associa‡ães como medica‡Æo intracanal / Residual antimicrobial activity of calcium hydroxide based pastes and associations as intracanal medication

A resistˆncia do biofilme endod“ntico pode requerer um per¡odo maior de permanˆncia da medica‡Æo intracanal a fim de prolongar sua a‡Æo antimicrobiana. O objetivo deste estudo foi avaliar a a‡Æo antimicrobiana residual das medica‡ães intracanal: G1) hidr¢xido de c lcio + soro; G2) Calen; G3) Calen + PMCC; G4) Calen + clorexidina 0,4% e G5) clorexidina gel 2% frente … Enterococcus faecalis, Candida albicans, Pseudomonas aeruginosa, Staphylococcus aureus e Kocuria rhizophila em 60 canais radiculares bovinos. Os canais radiculares foram instrumentados e preenchidos com as medica‡ães intracanal, as quais foram removidas ap¢s os per¡odos experimentais (15, 30, 60 e 90 dias) e empregadas na t‚cnica de difusÆo em  gar. Os halos de inibi‡Æo foram evidenciados por gel de TTC e entÆo mensurados. Os dados de halos de inibi‡Æo foram submetidos … an lise estat¡stica dos testes Kruskall-Wallis e Dunn, com n¡vel de significƒncia de 5%. O Ca(OH)2 + soro apresentou efeito at‚ o per¡odo de 15 dias. A pasta Calen demonstrou efeito residual aos 60 dias frente ao S. aureus, enquanto Calen/ PMCC at‚ o per¡odo de 90 dias frente …S. aureus eK. rhizophilae aos 30 dias paraE. faecalis. A pasta Calen associado … clorexidina foi efetiva frente … E. faecalis at‚ o per¡odo de 60 dias. A clorexidina gel 2% apresentou a‡Æo residual em todos os per¡odos, com exce‡Æo de E. faecalis aos 90 dias, tamb‚m apresentou atividade antimicrobiana mais prolongada, seguido das associa‡ães do hidr¢xido de c lcio com clorexidina e PMCC.

The endodontic biofilm resistance requires a longer period of intracanal medication to promote antimicrobial action. The aim of this study was to evaluate the residual antimicrobial activity of intracanal medications: G1) calcium hydroxide + saline; G2) Calen; G3) Calen+PMCC; G4) Calen + chlorhexidine 0.4% and G5) chlorhexidine gel 2% against Enterococcus faecalis, Candida albicans, Pseudomonas aeruginosa, Staphylococcus aureus, and Kocuria rhizophila. Root canals from 60 bovine teeth were instrumented and filled with intracanal medications. After the experimental periods (15, 30, 60 and 90 days), intracanal medications were removed and they were evaluated using the agar diffusion technique. The inhibition zones were detected by TTC gel and then measured. Data from inhibition zones were analyzed statistically by Kruskal-Wallis and Dunn test, with a significance level of 5%. The Ca(OH) 2 + saline showed residual effect limited to a period of 15 days. The Calen had residual effects at 60 days against S. aureus, while Calen + PMCC were observed until 90 days against S. aureus, K. rhizophila, and 30 days for E. faecalis. The Calen paste associated to chlorhexidine was effective against E. faecalis up to 60 days. The gel chlorhexidine 2% had residual action in all periods, except for E. faecalis for 90 days, and it has more prolonged antimicrobial activity, followed by the associations of calcium hydroxide with chlorhexidine and PMCC.

Ceratoacantoma solitário após luz intensa pulsada para tratamento de melanoses solares no dorso das mãos / Solitary keratoacantoma after intense pulsed light in the treatment of melanoses on the dorsum of hand

O ceratoacantoma é tumor cutâneo benigno, de rápido crescimento, composto por células escamosas e possui características clínicas e histopatológicas semelhantes ao CEC, podendo sofrer regressão espontânea sem qualquer tipo de tratamento. Acomete principalmente idosos e imunossuprimidos do sexo masculino e que possuem pele clara, em locais do corpo que sofreram exposição crônica à luz solar, como rosto, antebraços e dorso das mãos. O diagnóstico diferencial com o CEC é importante. O tratamento preconizado é a excisão cirúrgica, sendo as outras formas: crioterapia, eletrocoagulação e aplicação intralesional de agentes quimioterápicos.

The keratoacanthoma is a fast growing benign skin tumor that is composed of squamous cells and has clinical and histopathological features similar to those of the squamous cell carcinoma, and may undergo spontaneous regression without any treatment. It mainly affects elderly and immunosuppressed males who have fair skin, occuring in body sites that have been chronically exposed to sunlight, such as the face, forearms and backs of hands. The differential diagnosis with squamous cell carcinoma is particularly important. The recommended treatment is its surgical excision. Other treatment modalities, such as cryotherapy, electrocoagulation and intralesional injection of chemotherapeutic agents, are also available.

Microbial community response to a simulated hydrocarbon spill in mangrove sediments.

In this study, we examined the hypothesis that the microbial communities in mangrove sediments with different chemical and historical characteristics respond differently to the disturbance of a hydrocarbon spill. Two different mangrove sediments were sampled, one close to an oil refinery that had suffered a recent oil spill and another that had not been in contact with oil. Based on the sampled sediment, two sets of mesocosms were built, and oil was added to one of them. They were subjected to mimicked mangrove conditions and monitored for 75 days. Archaeal and bacterial communities were evaluated through PCR-DGGE. Both communities showed the emergence of small numbers of novel bands in response to oil pollution. 16S rRNA gene clone libraries were constructed from both mesocosms before the addition of oil and at day 75 after oil addition. LIBSHUFF analysis showed that both mangrove-based mesocosms contained similar communities at the start of the experiment and that they were different from the initial one, as well as from each other, after 75 days. These results hint at a role of environmental history that is not obvious from community diversity indicators, but is apparent from the response to the applied stress.

Trabalhos sociais com idosos: propostas e significados / Social work with elders: proposals and meanings

Este trabalho expõe os resultados de estudos realizados tendo como objetivo central a análise das propostas e dos significados de ações sociais desenvolvidas com idosos pelo projeto "Ônibus Ludicidade ­ Baú Encantado", realizado na Comunidade Nova Pantanal e o projeto IPREM Melhor Idade, da Prefeitura Municipal de São Paulo. As reflexões desenvolvidas fundam-se no pressuposto básico de que o envelhecimento é um processo biopsicossocial. A exclusão social pode ser uma das características deste processo, que também pode propiciar a participação social e comunitária, como uma estratégia de enfrentamento da situação de desigualdade que, muitas vezes, acomete o segmento idoso. A cidadania é concebida nos projetos em foco como o exercício de um conjunto de direitos e deveres que devem ser garantidos por todos os indivíduos. As pesquisas, de abordagem qualitativa, incluíram a realização de entrevistas com idosas da Comunidade Nova Pantanal e com aposentados e pensionistas do IPREM. A coleta de dados se pautou, também, na utilização de técnicas de observação e informativos mensais do Instituto de Previdência Social da P.M.S.P. As análises dos depoimentos e dados observados permitem destacar como resultados a superação do medo de aprender novas habilidades, a conquista da sociabilidade, a prática da solidariedade e da possibilidade de aquisição de uma nova profissão por pessoas idosas. A educação e a cidadania são processos importantes para reintegração e inclusão de envelhescentes e idosos no convívio social, propiciando uma condição de vida saudável.

This essay wants to expose the study results having as main objective the analyzes of the proposal and the meanings of social work developed with elders through the "Ônibus Ludicidade ­ Baú Encantado", made with the Nova Pantanal Community and the IPREM Better Age project, of the São Paulo City Hall. The developed reflections are based on the principle that aging is a biopsychosocial process. The social exclusion can be one of the characteristics of this process that can also engage the social participation, as a coping situation of inequality that sometimes affects the third age. The citizenship is conceived in the focused projects as an exercise of a set of rights and duties that must be guaranteed by all individuals. The researches, the qualitative approach, include the realization of interviews with female elders of the Nova Pantanal Community and with retired and alimony elders from IPREM. The data collect was based on observation techniques and monthly information from the Social Security Institute of P.M.S.P. The analyses of the testimonials allows to highlight the results for overcoming fear of learning new habilities, the conquest of sociability, the practice of solidarity and the possibility of acquiring a new profession by elders. The education and citizenship are important processes to the reintegration and inclusion of people in the aging process and elders in the social environment, proposing a healthy life.