RESUMEN
PURPOSE: This study aimed to assess the impact of battery levels in single-peak and multi-peak light-curing units (LCUs) on irradiance, and their effects on glass fiber post push-out bond strength to root dentin and the degree of conversion of dual-cure universal resin cement. METHODS AND MATERIALS: Sixty bovine roots underwent endodontic treatment and were randomly distributed into 6 groups (n=10), formed by combining two LCUs (single-peak and multipeak) and three battery levels (100%, 50%, and 10%). A spectrophotometer measured irradiance (mW/ cm2) and spectral irradiance (mW/cm2/nm). Push-out bond strength (PBS) tests occurred at three root regions (cervical, middle, and apical), with optical and scanning electron microscopy for failure mode analysis. Degree of conversion (DC) was evaluated across the root regions. Data were analyzed using two-way repeated measures ANOVA and the Tukey HSD test. The Fisher exact test verified failure modes (α=0.05). RESULTS: As multipeak LCU battery levels decreased, emitted irradiance also diminished, with notable PBS reductions in the apical thirds. Failure modes were influenced by different conditions, primarily exhibiting mixed modes. Battery levels significantly impacted DC in the multipeak LCU, particularly in the cervical region, while the single-peak LCU exhibited DC reduction at the 10% battery level in the cervical region. CONCLUSIONS: Emitted irradiance, resin cement DC, and glass fiber post bond strength to root dentin may be influenced by varying cordless LCUs and battery levels.
Asunto(s)
Luces de Curación Dental , Vidrio , Técnica de Perno Muñón , Cementos de Resina , Cementos de Resina/química , Bovinos , Técnica de Perno Muñón/instrumentación , Animales , Ensayo de Materiales , Microscopía Electrónica de Rastreo , Recubrimiento Dental Adhesivo/métodos , Análisis del Estrés Dental , Curación por Luz de Adhesivos Dentales/métodos , Técnicas In Vitro , DentinaRESUMEN
A intussuscepção uterina é condição rara em pequenos animais. No presente relato descreve-se um caso de intussuscepção uterina em um canino, fêmea Yorkshire Terrier no pós-parto imediato, diagnosticada por meio de laparotomia exploratória e pela avaliação anatomopatológica. Realizou-se a ovariossalpingo-histerectomia (OSH) como tratamento definitivo para a alteração. Conclui-se, portanto, que a intussuscepção uterina pode ocorrer em cadelas, de forma espontânea no pós-parto imediato.(AU)
Uterine intussusception has rarely been described in small animals. In this report we describe a case of uterine intussusception in a female Yorkshire terrier immediately postpartum, diagnosed by exploratory laparotomy and anatomopathologic evaluation. Ovariosalpingohisterectomy (OSH) was performed as definitive treatment. It is concluded that the intussusception of the uterus may occur spontaneously in dogs immediately postpartum.(AU)
Asunto(s)
Animales , Femenino , Perros , Intususcepción/diagnóstico , Intususcepción/veterinaria , Laparotomía , Laparotomía/veterinariaRESUMEN
A intussuscepção uterina é condição rara em pequenos animais. No presente relato descreve-se um caso de intussuscepção uterina em um canino, fêmea Yorkshire Terrier no pós-parto imediato, diagnosticada por meio de laparotomia exploratória e pela avaliação anatomopatológica. Realizou-se a ovariossalpingo-histerectomia (OSH) como tratamento definitivo para a alteração. Conclui-se, portanto, que a intussuscepção uterina pode ocorrer em cadelas, de forma espontânea no pós-parto imediato.
Uterine intussusception has rarely been described in small animals. In this report we describe a case of uterine intussusception in a female Yorkshire terrier immediately postpartum, diagnosed by exploratory laparotomy and anatomopathologic evaluation. Ovariosalpingohisterectomy (OSH) was performed as definitive treatment. It is concluded that the intussusception of the uterus may occur spontaneously in dogs immediately postpartum.
Asunto(s)
Animales , Femenino , Perros , Intususcepción/diagnóstico , Intususcepción/veterinaria , Laparotomía/estadística & datos numéricos , Laparotomía/veterinariaRESUMEN
BACKGROUND: During 1998-2000, a large rubella outbreak was reported from Recife, the capital municipality of Pernambuco State, in northeastern Brazil. In 2002, a study was conducted to assess the burden of congenital rubella syndrome (CRS) after this outbreak. METHODS: To describe the rubella outbreak, we analyzed data available from the National Notifiable Disease System. A retrospective record review for CRS was conducted at 6 maternity hospitals where 53% of Recife's resident live births occurred during 1999-2000 and 1 tertiary health care center. Suspected CRS cases were infants with any manifestation of CRS or maternal infection during pregnancy. Standard international definitions for compatible and confirmed CRS cases were used. Direct CRS costs were based on reimbursements by the National Health System. RESULTS: From October 1998 to July 2000, Recife reported 681 confirmed rubella cases. The highest incidence of rubella was among children 5-11 years of age (5.4 per 1000 population). Forty-five suspected CRS cases were identified; 29 were clinically compatible and 2 were laboratory-confirmed. The average annual incidence of CRS was 0.9 per 1000 live births during 1999-2000. Overall costs for the first year follow-up were estimated at 61,824 US dollars in this cohort. CONCLUSIONS: High rubella vaccination coverage is required to prevent the severe congenital disabilities and high economic costs of CRS. Increased clinician awareness is critical for early CRS detection. Complete reporting is essential to evaluate the impact of vaccination programs and to document progress toward the goal of CRS elimination in the Americas by the year 2010.
Asunto(s)
Costo de Enfermedad , Síndrome de Rubéola Congénita/epidemiología , Adolescente , Adulto , Anciano , Brasil/epidemiología , Niño , Preescolar , Brotes de Enfermedades , Humanos , Incidencia , Lactante , Recién Nacido , Persona de Mediana Edad , Estudios Retrospectivos , Síndrome de Rubéola Congénita/economía , Factores de TiempoRESUMEN
BACKGROUND: During 1999 and 2000 rubella outbreaks were reported in 20 of 27 states in Brazil, many among young adults. We investigated a large rubella outbreak in Rio Branco, Acre, in northwestern Brazil, where rubella vaccination targeting children 1 to 11 years old had been introduced in April 2000. Surveillance for congenital rubella syndrome (CRS) was initiated after the outbreak. METHODS: Suspected rubella cases were detected through active and passive surveillance. Confirmed rubella cases were patients with fever, rash and rubella-specific IgM antibodies. Suspected CRS cases were infants born with CRS-compatible defects or born to mothers with a history of rubella during pregnancy. Confirmed cases were infants with CRS-compatible defects and rubella-specific IgM antibodies. RESULTS: From April 1 to December 31, 2000, 391 confirmed rubella cases were reported. The incidence among persons ages 12 to 19 years (3.3 per 1000 population) was increased 3.7-fold relative to children ages 1 to 4 years (95% confidence interval, 2.4 to 5.8). Of 21 infants with suspected CRS cases, 17 (91%) were tested for rubella-specific antibodies, of whom 7 were IgM-positive and 5 had confirmed CRS. The peak incidence of confirmed CRS (4.3 per 1000) was in March 2001, 7 months after the outbreak peak, with an annualized incidence of 0.6 per 1000. CONCLUSIONS: Vaccination among school age children was insufficient to prevent a rubella outbreak among young adults that resulted in the occurrence of at least 5 cases of CRS. To prevent further cases of CRS, outbreak vaccination of young adults was conducted in November 2000 and among women ages 12 to 39 years in 2001 as part of a national campaign, with a coverage of 98% statewide.