The influence of periodontal therapy on serum antibody titers to selected periodontal disease-associated microorganisms was assessed in 23 patients having chronic inflammatory periodontal disease (CIPD). The immunoglobulin G (IgG) titers were determined by the microELISA technique in serum samples obtained prior to treatment; following a hygienic phase which included scaling, root planing, and ...

This paper gives an assessment of hygienic conditions found in 22 primary and 12 secondary schools in the city of Split during the school year 1990/91. The data were compared with the results of a similar investigation carried out in eight primary schools in the neighbouring Sinj area. The assessment consisted of the examination of the facilities, questionnaires, and microbiological analysis of...

Hygienic behavior, a trait that may confer resistance to brood diseases in the honey bee Apis mellifera, was studied in two species of stingless bees in Mexico. Eight colonies each of Melipona beecheii and Scaptotrigona pectoralis were tested for hygienic behavior, the removal of dead or diseased brood, by freeze killing a comb of sealed cells containing pupae. Both species detected and removed...