The ciga rette smoki ng may act direct ly on the oral mucosal membrane The effects of smoking has many harrnJul effects on the oral cavi ty ‘ s uch as oral cancer. oral Icukoplakia , erythroplakia‘ nicotine stomati tis. ha iry tongue. smoker’s melanosis. acute nec roti zing ulverative gingivitis, gingivitis/periodontitis ‘ treatment of periodontitis. implant surgery a nd den tal cari es. lf pregna nt woman smokes. the tobacco can effect on the both pregnant and embryo/fetus negati ve ly. For the cessation 0 [' smoki ng, the dentists have an important role to play in preve nti ng t he harmful efTects on smoking in the oral cav ity, Conseq uently smoking cou nseling should be as a part of the dentist's job in the de ntal pract ice,