Keywords: Salivary pH, tobacco, unstimulated saliva INTRODUCTION Various clinical and epidemiological evidence have been documented regarding the adverse effects of tobacco on oral health.[1] The adverse effects of cigarette smoking and other forms of tobacco are numerous, use of tobacco has been associated with oral mucosa, gingival diseases and dental alterations.[2] Saliva is a complex and important body fluid which is very essential for oral health.[3] Saliva plays a critical role in oral homeostasis because it modulates the ecosystem within the oral cavity.[4] Lubrication of the alimentary bolus, protection against virus, bacteria and fungi, buffer capacity, protection and repair of the oral mucosa and dental remineralization are some of the functions of saliva.[5,6,7] Taking this into account, quantitative and/or qualitative alterations in salivary secretion may lead to local (caries, oral mucositis, candidiasis, oral infections, chewing disorders) or extraoral (dysphagia, halitosis, weight loss) adverse effects.[8,9,10] Resting whole saliva is the mixture of secretions and enter the mouth in the absence of exogenous stimuli.[11] Several studies of resting salivary pH estimate a range of 5.57.9.[12] The pH of saliva is maintained by the carbonic acid/bicarbonate system, phosphate system and protein system.[13] Saliva is the first biological fluid that is exposed to cigarette smoke, containing numerous toxic compositions responsible for structural and functional changes in saliva.[14] Approximately 600 million people use arecanut worldwide in some form and is the fourth most commonly used psychoactive substance.[15] Arecanut contains four major alkaloids: Arecaidine, arecoline, guvacine and guvacoline
Smokeless tobacco use in the great American pastime is way past its time
state to allow consumption lounges in 2019 and Nevada is the latest to announce plans for the first state-sanctioned lounges by mid-2022
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