bluuebunny/crossref_metadata_2025_split huggingface dataset:
Avaliação do pH e da Liberação de Íons Cálcio e Fosfato pelos Cimentos Endodônticos AH Plus, MTA Fillapex e SmartPaste bio.
Authors: Viana F L P , Ley A M , Carvalho J C , Frota L M A , Aguiar B A , Vivacqua-Gomes N , Vascocelos B C 
Published: April 2018

O presente trabalho teve como objetivo avaliar a capacidade dos cimentos obturadores endodônticos AH Plus (AH), MTA Fillapex (MTAF) e SmartPaste Bio (SPB) em liberar íons hidroxila (OH-), cálcio (Ca2+) e fosfato (PO43-). Foram utilizados tubos de polietileno preenchidos com os cimentos e imersos em água deionizada (n5). Imediatamente após preenchidos foram levados à estufa a 37 ºC onde permaneceram por todo o período experimental. O líquido no qual estiveram imersos os espécimes foi avaliado quanto ao pH com o auxílio de um pHmetro, quanto a presença de cálcio por meio de um espectrofotômetro de absorção atômica e quanto a quantidade de fosfato por meio da técnica de cromatografia de íons nos períodos de 03, 24, 72 e 168 horas onde, a cada período, os espécimes eram trocados de recipiente. O SPB ofereceu os maiores valores de pH e de liberação de Ca2+ em todos os períodos, alcançando valores máximos de 10,79 (72h) e 6,76 mg/L (24h), respectivamente. A análise de PO43- mostrou liberação por parte dos cimentos AH e SPB, este último alcançando 0,34 mg/L (03h) o MTAF não apresentou liberação. Conclui-se que o SmartPaste Bio (SPB) foi o material que apresentou maiores valores de alcalinidade e que mais liberou íons Ca2+ e PO43-.Palavras-chave: Endodontia. Materiais Obturadores. pH, Íons Cálcio e Fosfato.
Ação de Diferentes Modos de Aplicação da Clorexidina na Resistência de União de um Sistema Adesivo Universal à Dentina
Authors: Cardoso M B , Barbosa L B , Freitas I B , Neri J R 
Published: April 2018

O objetivo do presente estudo foi avaliar a influência de diferentes modos de aplicação de digluconato de clorexidina na preservação da resistência de união de sistema adesivo de universal à dentina. Dezoito terceiros molares hígidos tiveram suas faces oclusais desgastadas até a exposição em dentina. Em seguida, os dentes foram divididos em 3 grupos (n6), de acordo com o modo de aplicação do digluconato de clorexidina a 2%: G1: (Controle) G2: pré-tratamento com digluconato de clorexidina a 2% e G3: digluconato de clorexidina a 2% incoporado no sistema adesivo. Todos os grupos utilizaram o sistema adesivo Single Bond Universal (3M ESPE). Posteriormente, foram aplicados cinco incrementos de resina composta Z350 XT. Os dentes foram seccionados longitudinalmente em forma de palitos. Os espécimes foram avaliados em uma máquina universal de ensaios em uma velocidade de 1 mm/minuto. Para a análise dos dados de resistência de união imediatos foi usado o teste de Análise de Variância (ANOVA) e o nível de significância foi de p<0,05. Após 24 horas, não houve diferença estatística entre os grupos (p>0,05). De acordo com a metodologia aplicada, a aplicação do digluconato de clorexidina, a uma concentração de 2%, através de tratamento ou incorporados, não prejudicou a resistência de união.Palavras-chave: Resistência de União. Clorexidina. Sistemas Adesivos.
Degradação das Propriedades Físico-Mecânicas de Cerâmicas Odontológicas de Dissilicato de Lítio: uma Revisão de Literatura
Authors: Sousa A K B , Silva F J A , Regis R R , Moura M E M , Paula F A R , Teixeira R R 
Published: April 2018

O objetivo do trabalho é realizar uma revisão de literatura sobre a degradação de propriedades físico-mecânicas de cerâmicas odontológicas de dissilicato de lítio submetidas a simulação de situações cotidianas e testes mecânicos. Foi realizada busca na base de dados Pubmed, nos últimos 10 anos, utilizando os descritores: ceramics, dental polishing, surfaceproperties. Selecionaram-se 16 artigos, sendo critérios de inclusão: estudos de testes mecânicos em dissilicato de lítio, língua inglesa e os critérios de exclusão: artigos com outras cerâmicas, relatos de caso e estudos não laboratoriais. Apesar de terem excelente desempenho clínico, em geral, cerâmica de dissilicato de lítio prensada mostrou maior resistência à fratura, devido a orientação dos seus cristais, impedindo a propagação de fraturas. Quando submetidas a envelhecimento acelerado e pigmentação por corantes alimentares, o dissilicato de lítio mostrou alteração de cor significativa, mas sem prejuízo clínico. As bebidas ácidas testadas, bem como diferentes sistemas de polimento podem gerar um aumento de rugosidade de superfície na cerâmica, bem como alterar os valores de microdureza do material estudado de forma significativa. As cerâmicas de dissilicato de lítio são bastante versáteis e possuem ampla indicação em restaurações indiretas. Portanto, faz-se necessário avaliar cada vez mais a longo prazo o comportamento desse material em diferentes situações e testes mecânicos, bem como investir em estudos clínicos, para que obtenhamos resultados cada vez mais confiáveis e seguros.Palavras-chave: Ceramics. Dental Polishing. Surfaceproperties.
Sistemas Adesivos Universais: a Influência da Condição do Substrato na Resistência de União em Dentina Erodida e Abrasionada
Authors: Teixeira G S , Miotti L , Righes D Z , Fiori P H Z , Susin A H 
Published: April 2018

Esse estudo avaliou a resistência de união (RU) imediata de diferentes sistemas adesivos universais aplicados sob diferentes estratégias em dentina hígida (HIG), erodida (ERO) e abrasionada (ABR). 72 terceiros molares foram divididos em 3 grupos (n24): HIG, ERO, ERO/ABR. Cada grupo foi subdivido conforme o sistema adesivo e o protocolo (n6): Single Bond Universal Self- etch (SBUSE), Single Bond Universal Total-etch (SBUTE), AllBond Universal Self-etch (ABSE) e AllBond Universal Total-etch (ABTE). O protocolo erosivo realizou-se através de ciclagem em refrigerante de cola por 7 dias. O grupo ERO/ABR seguiu os mesmos passos do grupo ERO, acrescido de um protocolo de escovação com dentifrício e saliva artificial, por 2 minutos. Após, os dentes receberam a aplicação dos sistemas adesivos, foram restaurados com resina composta e armazenados em água. Os dentes foram seccionados em forma de “palitos” (0,85mm2) e submetidos à microtração. ANOVA de dois fatores (a 0,05) foi feita para testar efeito e interação de cada um dos fatores e Teste de Tukey para confrontos intergrupos. Os fatores substrato (p0,001) e interação substrato/adesivo (p0,03) foram significantes, mas o fator adesivo não (p0,86). No confronto intergrupos verificou-se que dentina ERO não obteve diferenças estatísticas e atingiu os maiores resultados. O grupo HIG do ABSE e o grupo ERO/ABR do SBUSE apresentaram os piores resultados. Em geral, ABTE exibiu os melhores valores de RU. Concluiu-se que a estratégia TE e a dentina ERO, para ambos os sistemas adesivos, obtiveram os melhores resultados.Palavras-chave: Dentina, Adesivos, Erosão dental.
Estabilidade de Cor dos Pigmentos Aplicados em Porcelanas a Base de Dissilicato de Lítio Após Envelhecimento Artificial Acelerado
Authors: Silva F F F , Abreu R T , Chagas R B , Pinto A C M D , Dinelly E M P 
Published: April 2018

O estudo objetivou avaliar a estabilidade de cor (OE) em porcelanas à base de dissilicato de lítio para sistema CAD/CAM, após testes de envelhecimento artificial acelerado. Foram confeccionados sessenta corpos de prova, sendo trinta com glaze (grupo-controle) e trinta com uma camada de pigmento extrínseco e uma de glaze (grupo experimental). Na sequência, os corpos de prova foram divididos em três grupos: EA (escovação artificial) CTm (ciclagem termomecânica) EA + CTm (escovação artificial seguida de ciclagem termomecânica). A estabilidade de cor dos pigmentos foi verificada através do espectrofotômetro, que utiliza coordenadas CIELab, antes e após submissão dos testes. Os dados foram submetidos à analise de variância de um critério ou dois critérios, ambos seguidos do pós-teste de Bonferroni ou t de Student. No grupo-controle, a CTm aumentou significativamente o OE (-0,96) quando comparados a EA (-0,53). No grupo experimental, as cerâmicas submetidas a CTm (-2,07) ou EA + CTm (-1.61) apresentaram um aumento significativo de OE quando comparados apenas a EA (-0,37). Na CTm foi observado um aumento significativo de OE do grupo experimental (-2,07) quando comparado com o grupo-controle (-0,96). A associação de EA e CTm (-1,61), no grupo experimental, apresentou um aumento significativo de OE quando comparado com o grupo-controle (-0,74). Concluiu-se que as cerâmicas de dissilicato de lítio submetidas a pintura extrínseca apresentam boa estabilidade de cor, mesmo com a presença de fatores externos, mantendo a estética.Palavras-chave: Cor. Porcelana Dentária. Envelhecimento.
Fotossensibilizadores Utilizados em Terapia Fotodinâmica Sobre Biofilme Cariogênico: Revisão Sistemática da Literatura
Authors: Terto C N N , Campos L F X A , Rolim J P M L 
Published: April 2018

Terapia Fotodinâmica Antimicrobiana consiste na ativação oxigênio-dependente de um fotossensibilizador, através da luz, levando à produção de espécies reativas de oxigênio e à morte bacteriana, tornando-se uma ferramenta para o cirurgião-dentista em procedimentos de desinfecção em cariologia, endodontia, periodontia, implantodontia e prótese. Na literatura há uma dificuldade nos estudos em convergir para um parâmetro único ou ideal no seu uso em biofilme cariogênico. O objetivo foi realizar uma revisão sistemática da literatura sobre a efetividade de fotossensibilizadores, com suas respectivas fontes de luz, em biofilme cariogênico, focando no protocolo do uso de fotossensibilizadores. Procedeu-se uma revisão realizada nas bases de dados Lilacs, Medline, Biblioteca Cochrane e Pubmed, no período de agosto a outubro de 2016, com restrição de ano de 2006-2016. Os descritores utilizados foram: Biofilme oral cariogênico, placa dental e terapia fotodinâmica antimicrobiana. Oitenta e quatro trabalhos foram selecionados, sendo excluídos estudos em cultura planctônica, biofilme não cariogênico, revisões de literatura, teses, ausência de grupo controle e de estatística. Dez foram analisados criticamente por atenderem aos critérios de elegibilidade e avaliados qualitativamente sob critério do GCCP. Azul de orto-toluidina e azul de metileno, tempo de pré-irradiação e radiação ambos de 5 min, mostraram-se com melhores resultados antimicrobianos. Contudo, persiste a falta de consenso entre os pesquisadores, sendo necessárias mais avaliações.Palavras-chave: Photosensitizing Agents. Photochemotherapy. Dental Caries.
May awake video-assisted thoracoscopic surgery with thoracic epidural anesthesia use routinely for minimaly invasive thoracic surgery procedures in the future?
Authors: Sagiroglu Gonul , Yanik Fazli , Karamusfaoglu Yekta A. , Copuroglu Elif 
Published: April 2018

Background: In the last years thoracic surgery developed in greater extent with equipments and techniques in one lung ventilation. Still general anesthesia in one lung ventilation approved as gold standard. In thoracic surgery most performed surgeries are plerural decortication and lung biopsy. Avoidance of intubation in Video Assisted Thoracoscopic Surgery (VATS) procedures gains us some advantages in postoperative period; a better respiratory parameters, survival and morbidity mortality rates, reduced hospitalization time and costs, reduced early stress hormone and immune response. Methods: In this study, we reported our experience of 24 consecutive patients undergoing VATS with Thoracic Epidural Anesthesia (TEA) between December 2015 through July 2016 to evaluate the feasibility, safety and indication of this innovative technique whether it will be a gold standart in thoracic surgeries or not in the future.Results: Operation procedures included wedge resection in 11 (46%) patients (eight of them for pneumothorax, three of them for diagnosis), in 10 (42%) patients pleural biopsy (eight of them used talc pleurodesis), in two (8%) patients air leak control with fibrin glue and in one (4%) patient bilateral thoracal sympathectomy for hyperhidrosis. We used T4-5 TEA space for 17 (72%) of patients, while we used T4-6 TEA space for 7 (28%) of patients. TEA block reached the desired level after the mean 26.4±4.3 minutes (range 21-34 min). There was no occurrence of hypotension and bradycardia during and after TEA. One (4%) patient required conversion to general anesthesia and tracheal intubation because of significant diaphragmatic contractions and hyperpne. Conversion to thoracotomy was not needed in any patient.Conclusions: We conclude that nVATS procedure with aid of TEA is feasibile and safety with minimal adverse events. The procedure can have such advantages as early mobilization, opening of early oral intake, early discharge, patient satisfaction, low pain level. Nevertheless, there is a need for randomized controlled trials involving wider case series on the subject.
The role of personal hygiene on non complicated pediatric appendicitis patients
Authors: Bagus Budhi Ida , Rumaisha Azka , Suwardi Suwardi , Dewi Yudhani Ratih 
Published: April 2018

Background: Appendicitis is an inflammation that occurs in appendix vermiformis and is the most common cause of abdominal pain. Appendicitis is also an indication of emergency abdominal surgery in children. The incidence of child appendicitis is 1.66 per 1000. If the diagnosis is delayed, 97% of cases of acute appendicitis will lead to perforation with a mortality rate of 5.1 per 1000 cases. The most common etiology of appendicitis is lymphoid tissue hyperplasia which represents one of the immune responses to infection. One of the infection factors was the poor personal hygiene level. This research aimed to discover personal hygiene level description in pediatric non complicated appendicitis.Methods: This research used descriptive quantitative observational research conducted in Moewardi General Hospital Surakarta. The sampling method was total sampling in appendicitis patient with, 33 respondents. Assessment in patients was calculated using personal hygiene scale questionnaire consisting of 12 items. The independent variable in this research was personal hygiene level, and the dependent variable was the incidence of pediatric appendicitis. Data were analyzed statistically for descriptive analysis.Results: The result showed that 51.5% of patients with pediatric appendicitis had poor personal hygiene. Conclusions: Pediatric appendicitis patient had poor personal hygiene level.
A study to compare RIPASA (Raja Isteri Pengiran Anak Saleha Appendicitis) and Alvarado scores in diagnosing acute appendicitis in Indian population
Authors: Joseph Dijo S. , Kavalakat Alfie J. , Mandumpala John M. , Mayyattil Suresh V. 
Published: April 2018

Background: Acute appendicitis is one of the most common surgical emergencies. Various clinical scoring systems have been used for early diagnosis of acute appendicitis, of which Alvarado score is the most popular but it is found to be less accurate when applied to Asian population compared to RIPASA score. Radiological modalities such as computed tomography (CT) imaging may aid in making a definite diagnosis but will inflate the cost of treatment. This study aims to compare RIPASA and Alvarado scoring system in the diagnosis of acute appendicitis in our population.Methods: It was a comparative cross-sectional study done in 100 patients. RIPASA and Alvarado scores were applied to each patient. Our inclusion criteria were patients presenting with Right iliac fossa pain who subsequently underwent Appendicectomy in the same admission. Exclusion criteria included patients admitted under other specialties, those who underwent previous appendicectomy, elective appendicectomy and those not willing for the study. Results: The sensitivity and specificity of RIPASA score was 95.12% and 66.67% and that of ALVARADO score was 64.63% and 77.78%. The positive predictive value (PPV) and negative predictive value (NPV) of RIPASA score was 92.86% and 75% and that of Alvarado score was 92.98% and 32.5%. The diagnostic accuracy of Alvarado and RIPASA scores were 67.0% and 90.0% respectively.Conclusions: RIPASA scoring system is more accurate and specific scoring system for our population than Alvarado in diagnosing acute appendicitis.
Laparoscopic cholecystectomy in acute calculus cholecystitis
Authors: Meena Ankit , Chaudhari Abhay , Akhtar Murtaza A. 
Published: April 2018

Background: Acute calculus cholecystitis was traditionally treated conservatively followed by open interval cholecystectomy. Laparoscopy has revolutionized abdominal surgeries. Laparoscopic cholecystectomy is gold standard in management of cholelithiasis. Role of laparoscopic cholecystectomy in acute calculus cholecystitis is still controversial. Present study is evaluating the role of Laparoscopic cholecystectomy as treatment of acute calculus cholelithiasis. Methods: An observational study was conducted at tertiary care academic hospital and a total of 33 patients were enrolled. The inclusion criteria for enrollment of patients were patient with acute abdomen with clinically and ultrasonologically diagnosed as acute cholecystitis. All patients with Acalculus cholecystitis, Choledocholithiasis, obstructive jaundice, Cholangitis and pregnant patient were excluded from this study. The study factor was standard four port laparoscopic cholecystectomy was performed within 72 hours of onset all patients. The primary outcomes were operative time, intra-operative complications, conversion to open surgery and secondary outcome was postoperative complications.Results: A total of 33 cases were enrolled. The mean age of the patients was 44.00 ± 12.2 years (26-68 years) with female preponderance Mean duration of pain was 1.16 days. Mean Operative time was 102.06 ± 10.36 minutes (60-142 minutes). Post-operative surgical site infection present with 4 (12.1%) patients and post-operative fever in 5 (15.2%) patients. The mean hospital stay was 5.30 ± 1.42 days. The open conversion rate was 9.1% and there were no complications.Conclusions: Laparoscopic cholecystectomy in acute calculus cholecystitis is a safe operative procedure.
Nontoxic goiter: causes, clinical evaluation and management
Authors: Thakkar Dhaval B. , Deshmukh Satish D. , Akhtar Murtaza 
Published: April 2018

Background: Thyroid diseases are the commonest endocrine disorders worldwide and India is no exception. Goiter may be generalized or localized, toxic or nontoxic. The present study is being carried out in a government notified endemic area to study the etiology and surgical management with postoperative complications in patients with nontoxic goiter.Methods: A observational study was carried out at a tertiary care academic hospital. Patients with a clinically diagnosed nontoxic goiter with normal T3, T4 and TSH values were included in the study. The study subjects underwent relevant investigations and surgical intervention. The outcome factors were histopathology of the surgically removed gland and postoperative complications.Results: A total of 67 patients of nontoxic goiter were enrolled. The mean age of the patients was 33.3±11.1 years with female preponderance. The mean duration of the thyroid swelling was 2+/- 2 years. Hemithyroidectomy was most common surgery (68.7%) carried out. A majority (88%) of resected thyroid specimens were benign histopathologically as colloid goiter. An intergroup analysis was carried out between metabolic, autoimmune and neoplastic etiologies. Neoplastic etiology was significantly associated with smooth surface and hard consistency of the gland. Autoimmune goiter had significantly less than 12 months duration and painful. The postoperative complications observed were hypothyroidism (22.4%), hypoparathyroidism (10.5%), RLN palsy (6%) and SSI (3%). Conclusions: Benign pathology was commonly seen with nontoxic goiter. Hypothyroidism and Hypoparathyroidism were the most frequent postoperative complications.
Assessment of bacteriological profile and outcome of empyema thoracis in hospitalized children in a tertiary care hospital of Raipur city, Chhattisgarh, India
Authors: Toppo Aradhana , Yadu Shruti 
Published: April 2018

Background: An empyema is a purulent collection in the pleural space. Empyema Thoracis is a disease that, despite centuries of study, still causes significant morbidity & mortality. It is very commonly seen in children all over the world, more frequently as a complication of pneumonic infections. Pediatric empyema has a much more favorable prognosis compared to adult cases. Empyema thoracic is a common complication of pneumonia. Children of poor socio-economic status and below 3 years of age are most commonly affected. Methods: The present prospective observational study was conducted in Department of Surgery, Pediatric Surgery unit, Pt. J. N. M. Medical College and Dr. B. R. A. M. Hospital, Raipur (C.G.) during study period July 2011 to October 2012. This study includes 40 study subjects of the patients of empyema who were diagnosed by the aspiration of gross pus from the pleural space. Complete History was taken, and physical examination was performed in all the cases.Results: The commonest symptoms at presentation were fever seen in 40 patients (100%), cough with expectoration seen in 36 patients (50%-90%) and dyspnea seen in 32 patients (80%). Left pleura was more commonly affected than the right pleura. The most common organism isolated were Staphylococcus aureus in 28 patients (70%), followed by Klebsiella in 7 patients (17.50%), then E.coli in 3 patients (7.5%) & Streptococcal species in 2 patients (5%). The use of antibiotic therapy alone was effective in 25 patients (62.50%) Antibiotic therapy along with tube thoracostomy was required in 15 patients (37.50%). Operative intervention was required in none of the patients. Out of 40 patients, 28 (70%) had complete lung expansion, while 12 (30%) had only partial expansion. Patients with partial expansion mainly comprised of those who presented late in the course of the disease.Conclusions: It is concluded from the study that early diagnosis and management is critically important in reducing the unfavourable outcome in pediatric espuma thoracis cases.
Survival abdominal gunshot injury: a rare case
Authors: Gajbhiye Ashok S. , Deshmukh M. N. , Jaipuriya Parag , Jaipuriya Parag , Mehata P. , Kumar Abhinav , Kumar Abhinav 
Published: April 2018

A 55 years old male patient came to the casualty of a medical college and hospital with alleged history of assault with firearm injury on his back. Patient was conscious with GCS 15/15, his pulse rate was 133 beats per min, blood pressure was 100/60 mmHg, SpO2 was 95% and pallor was present. On local examination there was single entry wound at lower back on left side of size 1 cm X 1 cm with no exit wound. Generalized abdominal tenderness and guarding was present. Patient was immediately resuscitated. Blood grouping, cross match were sent immediately. Abdominal radiograph did not show any gas under the diaphragm but a foreign body (a bullet) was seen. Ultrasonography and computerized tomography scan of the abdomen was suggestive of hemoperitonium and a foreign body bullet in abdomen. Exploratory laparotomy showed moderate hemoperitonium of about 1000 ml which was sucked out completely. Evidence of retroperitoneal rent of size approximately 1 cm X 1 cm seen with oozing through it which was closed in layers. A bullet was seen in the anterior abdominal wall but skin was intact. Five jejunal perforations distal to 20 cm from the duodenojejunal flexure were seen and the bullet was removed from the anterior abdominal wall. Resection of the jejunal segment with jejuno-jejunal anastomosis was done. Jejunal mesenteric rents were closed. Abdominal wall closed in layers. Post-operative recovery was uneventful. Patient was discharged on the 10th post-operative day. Early diagnosis and treatment in the golden hours can save the life of the patients. A mass education on the dangers of these guns and the harm they can cause as well as legal regulations for their restricted use seem to be necessary.