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These include: increased risk of oral cancer gum disease stained teeth bad breath (halitosis/oral malodour) tooth loss loss of taste and smell reduced blood supply to the mouth increased build-up of plaque biofilm and tartar on your teeth delayed healing following tooth extraction and other surgery in the mouth Current evidence indicates tobacco and alcohol together significantly increase the risk of mouth and throat cancers compared with either alcohol or tobacco use alone

2018, Federal Aviation Administration technicians ran lithium battery tests to learn how flight attendants can fight high energy fires

doi:10.1002/14651858.CD002850.pub4

One logical explanation might be that dermatologists have little or no training in this area

doi:10.1136/tobaccocontrol-2021-057227