“…6 John 5 found that 88% of dentists believed they should encourage their patients to stop smoking as part of their role. Different kinds of barriers were identifi ed, eg lack of training and knowledge 2,4,6,7,[12][13][14][15][16] and lack of time. 2,4,6,12,13,[15][16][17][18] Dental professionals are also concerned with disturbing the dentistpatient relationship.…”