ABSTRACT
Context: Aesthetic considerations form a major aspect of dental material selection for tooth restorations. Anterior restorative materials exclusively used in anterior teeth. With the advances made, tooth-colored restorative materials are now used in posterior teeth restorations. Objective: The aim of this study was to evaluate the techniques employed, associated problems and the attitudes of dental practitioners to the placement of posterior composites. Method: This was a questionnaire-based study conducted among sixty-eight (68) dentists practicing in public/government-owned and private hospitals. Results: The results show that 86.8% of the respondents considered the conservation of tooth substance as the most common factor influencing their choice of composite materials for posterior teeth. On their perceptions of posterior composites generally, 77.9% of the respondents agreed that posterior composites needed less destruction of sound tooth substance while 35.0% considered moisture control as the most difficult problem faced during placement of the restoration. Wooden wedges were the most popular wedges while ultraviolet curing light were the most commonly used by the respondents. Majority (82.4%) agreed that calcium hydroxide and glass ionomer cement should only be used in cases of operatively exposed dentine in deep cavities. The percentage that never used rubber dam was 47.1 while incremental curing was the most commonly used method. Sectional matrices were more commonly used by respondents while the most commonly encountered post-treatment problem was the fracture of restorations. Conclusion: While more dental practitioners are embracing the use of composites for posterior restorations, there remains the need to get them to embrace the techniques of placement to ensure more satisfactory and predictable outcomes
Subject(s)
Nigeria , Tooth ReplantationABSTRACT
OBJECTIVE: To characterize the clinicopathological manifestations and outcomes of a cohort of HIV-infected Jamaican adolescents. METHODS: This is a retrospective cohort study to determine demographic, clinical, immunological characteristics, antiretroviral uptake and mortality in 94 adolescents aged 10-19 years followed in the Kingston Paediatric and Perinatal HIV/AIDS Programme (KPAIDS) between September 2002 and May 2007. Parametric and non-parametric tests are used to compare variables. RESULTS: The median age at initial presentation was 10.0 years (interquartile range (IQR) 7.0-12.0 years), 54.3% (51) were female (p = 0.024), transmission was primarily mother-to-child (70, 73.4%), with 87% (61) of the latter presenting as slow progressors. Sexual transmission accounted for 19.1% and there was significant female predominance (n = 15; p = 0.024). At most recent visit, perinatally infected adolescents were more likely (p < 0.0001) to reside with a non-parent (n = 42) than a biological parent (n = 19) and most had Centers for Disease Control and Prevention (CDC) category C (35/50%) disease, whereas the majority of non-perinatally infected children were classified CDC category A. Mean z scores for height-for-age was -1.47 ± 1.21 (n = 77), weight-for-age -1.06 ± 1.44 (n = 80) and BMI-for-age -0.34 ± 1.21 (n = 76) respectively; females (n = 41) were taller than males (n = 36) at their current height (p = 0.031). Lymphadenopathy (82%), dermatitis (72.0%), hepatomegaly (48%) and parotitis (48%) were the most common clinical manifestations, with significant predilection for lymphadenopathy (p # 0.0001), dermatitis (p = 0.010), splenomegaly (p = 0.008), hepatomegaly (p = 0.001) and parotitis (p = 0.007) among perinatally infected children. Median baseline CD4+ cell count was 256.0/µL (IQR 71.0 - 478.0 cells/µL); median most recent CD4+ cell count was 521/µL (IQR 271.0 - 911.0 cells/µL). Seventy-six per cent (n = 71) were initiated with highly active antiretroviral therapy (HAART) and 62 (87.3%) were currently receiving first-line therapy. Six behaviourally infected females became pregnant, resulting in five live births. There were seven deaths (7.4%). CONCLUSIONS: This study comprehensively characterizes HIV infection among perinatally infected teens with predominantly slow-progressor disease and an increasing population of sexually-infected adolescents. As the cohort transitions to adulthood, adolescent developmental, mental health and life planning issues must be emergently addressed.
OBJETIVO: Caracterizar las manifestaciones clínico-patológicas y la evolución clínica de una cohorte de adolescentes jamaicanos infectados por el VIH. MÉTODOS: El presente es un estudio de cohorte retrospectivo con el fin de determinar las características demográficas, clínicas, inmunológicas, así como el consumo de antiretrovirales y la mortalidad en 94 adolescentes de 10 a 19 años de edad, llevado a cabo como parte del Programa VIH/SIDA perinatal y pediátrico de Kingston (KPAIDS) entre septiembre de 2002 y mayo de 2007. Se usan pruebas paramétricas y no paramétricas para comparar las variables. RESULTADOS: La edad mediana en la presentación inicial fue 10.0 años (rango intercuartil (IQR) 7.0-12.0 años), 54.3% (51) eran hembras (p = 0.024), la transmisión fue fundamentalmente de madre a hijo (70, 73.4%), presentándose el 87% (61) de los últimos como progresores lentos. La transmisión sexual representó el 19.1% y hubo un predominio significativo de las hembras (n = 15; p = 0.024). En la visita más reciente, los adolescentes infectados perinatalmente presentaron una mayor probabilidad (p < 0.0001) de residir con personas distintas de sus padres (n = 42) que con un progenitor biológico (n = 19), y la mayor parte tenía la enfermedad categoría C (35/50%) de acuerdo con los Centros para el Control y la Prevención de las Enfermedades (CCPE), mientras que la mayoría de los niños infectados no perinatalmente fueron clasificados con la categoría A del CCE. Las puntuaciones z medias para altura por edad fue - 1.47 ± 1.21 (n = 77), peso por edad -1.06 ± 1.44 (n = 80), y el IMC por edad -0.34 ± 1.21 (n = 76) respectivamente; las hembras (n = 41) fueron más altas que los varones (n = 36) en altura corriente (p = 0.031). La linfadenopatía (82%), la dermatitis (72.0%), la hepato-megalia (48%) y la parotitis (48%) fueron las manifestaciones clínicas más comunes, con predilección significativa de la linfadenopatía (p # 0.0001), la dermatitis (p = 0.010), la esplenomegalia (p = 0.008), la hepatomegalia (p = 0.001) y la parotitis (p = 0.007) entre los niños perinatalmente infectados. La mediana de la línea de base del conteo celular CD4+ fue 256.0/µL (IQR 71.0 - 478.0 células/µL); la mediana del conteo celular CD4+ más reciente fue 521 /µL (IQR 271.0 - 911.0 células/µL). El setenta y seis por ciento (n = 71) fueron iniciadas con terapia antiretroviral altamente activa (TARAA) y 62 (87.3%) estuvieron corrientemente recibiendo terapia de primera línea. Seis hembras infectadas conductualmente fueron embarazadas, produciéndose como resultado cinco nacimientos. Hubo siete muertes (7.4%). CONCLUSIÓN: Este estudio presenta una caracterización integral de la infección por VIH entre adolescentes infectados perinatalmente predominantemente con la enfermedad de progresores lentos, y una población creciente de adolescentes infectados sexualmente. En la medida en que la cohorte transita a la adultez, el desarrollo del adolescente, la salud mental y los problemas de la planificación de la vida tienen que ser abordados con urgencia.