Microflora of normal maxillary sinuses: does it justify perioperative antibiotic treatment in sinus augmentation procedures.

Objectives: To investigate bacterial flora of normal maxillary sinuses in order to facilitate perioperative antibiotic management in sinus augmentation procedures.

Materials And Methods: Specimens of maxillary sinus mucosa were harvested during planned orthognatic surgery in 18 patients with no evidence of rhinosinusitis. The samples were processed according to hospital routine for aerobic and anaerobic cultures.

The in vitro effect of fluoridated milk in a bacterial biofilm--enamel model.

Objectives: The purpose of this study was to investigate the effect of milk and fluoridated milk on bacterially induced caries-like lesions.

Sample And Methods: Extracted impacted human molars were cut in half and covered with a varnish leaving a 4*4 mm window. The samples were coated with biofilm of S.