Orbital abscess secondary to acute dacryocystitis: case report / Abscesso orbitário secundário à dacriocistite aguda: relato de caso

Acute dacryocystitis usually induces preseptal infection. In rare instances the infection that is confined to the lacrimal sac can extend to the orbital contents resulting in orbital cellulitis. We present a case of intraconal abscess secondary to acute dacryocystitis and review the literature of orbital cellulitis resulting from acute lacrimal sac infection.

A dacriocistite aguda comumente evolui para infecção pré-septal. Raramente a infecção localizada no saco lacrimal pode estender-se ao conteúdo orbitário resultando em celulite orbitária. Apresentamos um caso de abscesso orbitário intraconal secundário à dacriocistite aguda e uma revisão de literatura de celulite orbitária causada por infecção aguda do saco lacrimal.

Bacteriological study in overdenture wearer

Overdentures have gained high popularity in the last ten years as an alternative to complete dentures for patients with remaining natural teeth. The advantages of over denture were recorded as preserving the residual alveolar ridge, as well as increased masticatory performance due to the proprioceptive impulses from over denture abutments. [Lord and Teels., 1974 and Rissin et al., 1987]Many techniques for overdenture construction were used, but the most common techniques were that one constructed over reduced abutments with amallgum filling or over reduced abutments with cast metal or gold copings. The loss of abutments of the overdenture was the prime etiologic factor in overdenture failure, and that loss was often due to periodontal disease affecting the abutments. A question arise, dose the restorations for abutments of over dentures have an effect on the subgingival micro flora. The present work aims to study the effect amalgam and coping restoration of the abutments of overdenture on subgingival micro flora as well as the count of subgingival Bacteroides melaninigenicus

Evaluación microbiológica de la efectividad de un compuesto de clorhexidina al 0.2 (por ciento) frente a ciertos microorganismos periodontopáticos / Microbiological evaluation of the efectivity one compound the clorhexidina 0.2 (por ciento) front a some microorganism periodontopatics

Las enfermedades periodontales inflamatorias crónicas, causadas por bacterias gram negativas anaerobicas esencialmente, son responsables del 70 (por ciento) de las pérdidas dentales en los pacientes adultos. Hasta recientemente, la mejor manera de controlar estas enfermedades era mediante métodos mecánicos, pero ahora se ensaya con éxito, sobre todo en los países europeos, con el gluconato de clorhexidina para lograr este propósito. En el presente trabajo se evalúa la efectividad de este compuesto de clorhexidina producido localmente, mediendo su actividad inhibitoria en concentraciones predeterminadas frente a doce cepas microbianas estandarizadas, algunas periodontopáticas. Demostramos que el gluconato de clorhexidina requiere <30 segundos para tener acción letal sobre varios microorganismos, entre ellos especies periodontopáticas; tiene acción letal en una concentración de 0.2 (por ciento) frente a Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus viridans, Escherichia coli, Bacteroides melaninogenicus, Actinomyces viscosus y Candida albicans. Determinada la eficacia del producto local de gluconato de clorhexidina frente a varios microorganismos, nos encontramos en condiciones de estudiar la acción de este compuesto en el paciente para prevenir y/o eliminar la formación de la placa dentobacteriana

Anaerobic infection of the lung and pleural space in tuberculosis.

Prevalence of anaerobic bacterial infection in 120 sputum positive cases of pleuro-pulmonary tuberculosis was found to be 53.3 per cent-either as pure or mixed with aerobes. Bacteroides fragilis and B. Melaninogenicus were isolated in 19 (26.6%) and 12 (18.72%) cases respectively. Sensitivity studies showed that these were most sensitive to metronidazole followed by rifampicin and kanamycin. The possibility of anaerobic infection may be considered in patients of pulmonary tuberculosis who do not respond to routine treatment.