ABSTRACT Smoking is recognised as a risk factor for human health. It is related to many problems like respiratory problems, cardiovascular disease, cancer, etc. Smoking is associated with incidence of gingivitis, periodontitis, epithelial malignancy in the oral cavity. It increases the number and depth of periodontal patients. Loss of tissue strength caused due to harmful compounds like tobacco, increase gingival recession and changes to the oral cavity. Prevalence of moderate and severe diseases are higher in smokers than non-smokers. Smoking affects both gingival epithelium and connective tissue. Density of blood vessels is decreased in smokers. Effect of smoking on vascular status is caused by nicotine compounds. This review was done based on the articles obtained from various platforms like PubMed, PubMed central and Google Scholar. They were collected with a restriction in time basis from 2000-2020. The inclusion criteria were original research papers. In vitro, studied among various conditions and articles that contain pros and cons. Exclusion criteria came into account for review articles, retracted articles and articles of other languages. All the articles are selected based on the effect of smoking on gingival health. Thus, smoking results in various oral health problems like incidence of gingivitis, periodontitis, epithelial malignancy in the oral cavity. It affects gingival recession and changes to the oral mucosa. This review article gives knowledge about the correlation between smoking and health of gingival treatment with various dental problems.