Nutritional deficiencies occur when the body’s supply of nutrients is exceeded by its demand. The first signs of vitamin or mineral deficiencies may manifest in the oral cavity due to the unique environment and rapid cell turnover. The aim of this chapter is to outline the oral signs and symptoms occurring with vitamin deficiencies, which the astute clinician may identify. These manifestations are reviewed and treatments suggested. The significance of hematinic deficiencies in burning mouth syndrome management is also discussed.
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