Smoking leads to dental problems, including:

Bad breath
Tooth discoloration
Inflammation of the salivary gland openings on the roof of the mouth
Increased build up of plaque and tartar on the teeth
Increased loss of bone within the jaw
Increased risk of leukoplakia, white patches inside the mouth
Increased risk of developing gum disease, a leading cause of tooth loss
Delayed healing process following tooth extraction, periodontal treatment, or oral surgery
Lower success rate of dental implant procedures
Increased risk of developing oral cancer

How does smoking and diet affect teeth?