Hyperbaric oxygen therapy for irradiated patients who require dental implants: a Cochrane review of randomised clinical trials.

Objectives: To compare success, morbidity, patient satisfaction and cost effectiveness of dental implant treatment carried out with and without hyperbaric oxygen (HBO) therapy in irradiated patients.

Data Sources: MEDLINE, EMBASE, The Cochrane Oral Health Group's Trials Register, and The Cochrane Central Register of Controlled Trials (CENTRAL) to June 2007.

Review Methods: Systematic review with search without language restriction for randomised clinical trials only.

Risk of severe periodontal disease in a Swedish adult population. A longitudinal study.

The aim of this study was to identify risk factors for severe periodontal disease progression in a Swedish adult population between the years 1973 and 1988-91. In 1973, a random sample of 474 dentate adults living in Jönköping County was examined clinically and radiographically. A questionnaire on demographic and socio-economic status, general health, and dental care habits was also used.

Survival and significance of PNH erythrocytes: a scanning study.

The SEM study of PNH erthrocytes which survived incubations with decreasing dilutions (from 1:640 to 1:20) of fresh compatible serum in isotonic sucrose has indirectly evidenced that spherocytes and spherostomatocytes are the most sensitive population to the complement lytic action; swelling is an osmotic consequence of their membrane hypersusceptibility. In such functional abnormality the swollen red cells are closely followed by the cribrous and pitted erythrocytes. A relationship has been found between percentage of the swollen cells and frequency of PNH haemolytic bouts: these are most likely to occur when spherocytes and spherostomatocytes are above 40% of cells.