Breaches at four private Sydney dental clinics have put infection control into the spotlight and dental students at Charles Sturt University (CSU) in Orange will today hear from a world authority on HIV and the mouth. The guest lecture by Honorary Professor of dental research at the Menzies Health Institute in Queensland and Adjunct Professor of Dental and Oral Health at CSU, Newell Johnson is being hosted by CSU's School of Dentistry and Health Sciences. CSU Professor of Dentistry David Wilson said Professor Johnson specialises in tooth disease and disease that affect the mouth such as oral cancer and HIV/AIDS. "The talk on HIV/AIDS is particularly topical in view of the recently reported dental infection control breaches in New South Wales which highlight the clinical responsibilities of dental practitioners and their duty to be able to recognise signs of HIV/AIDS in the mouth, as these may be the first manifestation of the disease in a patient." The lecture, The Mouth and AIDS: A continuing global challenge will be held from 5:15pm in the lecture theatre 1004.120 at CSU in Orange.