Microleakage under metal and ceramic brackets after acid etch or laser surface treatment before bonding: An in vitro study.

Aim: To compare microleakage beneath ceramic and metal brackets prepared with either acid etching or laser conditioning.

Design: An in vitro study.

Setting: Department of Orthodontics, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.

An outbreak of acute gastroenteritis due to Aeromonas sobria in Benghazi, Libyan Arab Jamahiriya.

We report an outbreak of acute diarrhoea due to Aeromonas sobria in Benghazi which occurred during a 1-month period in 1997. Of 69 patients admitted with acute gastroenteritis, 28 were positive for A. sobria based on the production of gas from glucose, the production of acetoin, hydrogen sulfide and lysine decarboxylase and on aesculin hydrolysis and fermentation of arabinose and salicin.