It is believed that the crew of Columbus had introduced tobacco from the 'American India' to the rest of the world, and tobacco was attributed as a medicinal plant. It was often used to avert hunger during long hours of work. But in reality, tobacco causes various ill effects including pre-malignant lesions and cancers. This article aims at reviewing the literature pertaining to the effect of tobacco smoking upon the outcome of various surgical procedures performed in the oral cavity.
Tobacco affects postoperative wound healing following surgical and nonsurgical tooth extractions, routine maxillofacial surgeries, implants, and periodontal therapies. In an experimental study, bone regeneration after distraction osteogenesis was found to be negatively affected by smoking. Thus, tobacco, a peripheral vasoconstrictor, along with its products like nicotine increases platelet adhesiveness, raises the risk of microvascular occlusion, and causes tissue ischemia. Smoking tobacco is also associated with catecholamines release resulting in vasoconstriction and decreased tissue perfusion. Smoking is believed to suppress the innate and host immune responses, affecting the function of neutrophils - the prime line of defense against infection. Thus, the association between smoking and delayed healing of oral tissues following surgeries is evident. Dental surgeons should stress on the ill effects of tobacco upon the routine postoperative healing to smoker patients and should aid them to become tobacco-free.
Smokers may be more vulnerable to diseases, in addition to developing diseases from smoking.
A new study explains that smoking forces the body to fight against helpful bacteria that serve to eliminate some harmful germs. The information appears in the journal Infection and Immunity.
The reason for this is based on the fact that the mouth of a nonsmoker contains an ecosystem of healthy bacteria. This type of ecosystem doesn't exist for nonsmokers, opening the possibility of being susceptible to some dangerous bacteria.
A research team at Ohio State University, led by Assistant Professor of Periodontology Purnima Kumar, is investigating the impact of bacteria on oral disease. Based on the research, dentists may have to be more of a factor in treating smokers.
The team studied the way the ecosystem of the mouth was affected after removing various bacteria. To compile the data, 15 nonsmokers and 15 smokers were studied. The researchers were looking for two specific things: (1) which bacteria were present after analyzing the DNA signatures in dental plaque and (2) whether or not the person's body viewed the bacteria a threat.
Smokers also have a higher amount of cytokines, which means the body is preparing to fight infection. The result is red, swollen gums or gingivitis, which can develop into periodontitis.
The mouth of the smoker is not just trying to combat harmful bacteria. Their bodies were treating the helpful bacteria as harmful as well. The research team hasn't fully grasped why this happens, but the assumption is that smoking is confusing the relationship between the human host and the bacterial community.
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