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When the salivary glands do not produce enough saliva, the mouth gets dry and uncomfortable. Due to certain conditions, such a phenomenon can occur and this condition is known as dry mouth or xerostomia. Xerostomia or dry mouth can occur due to multiple reasons.
Read on more to find all about the different causes and symptoms of dry mouth:
- Side effects of certain medications: Dry mouth occurs due to the effect of certain prescription and nonprescription medications. Drugs used to treat depression, pain, allergies, anxiety, epilepsy, obesity, nausea and psychotic disorders can cause dry mouth condition as a side effect. Sedatives and muscle relaxers can also cause dry mouth.
- Side effects of certain disease and infections: Certain diseases such as Alzheimer's disease, mumps, diabetes, hypertension, cystic fibrosis, anemia and Parkinson's disease can also cause dry mouth or xerostomia.
- Side effects of treatments: If the salivary glands are damaged due to certain reasons, then less saliva is secreted resulting in dry mouth. Certain treatments such as radiation treatments in the head and neck or chemotherapy sessions could indirectly cause dry mouth by damaging the salivary glands.
- Nerve damage: Dry mouth can also be due to a person suffering from nerve damage caused due to accident or surgery.
- Dehydration: Conditions like fever, excessive vomiting, diarrhea, excessive sweating, which cause dehydration can also cause dry mouth.
- Removal of salivary glands: Surgical removal of the salivary glands also causes dry mouth.
- Lifestyle choices: Certain lifestyle preferences such as chewing tobacco or smoking can cause dry mouth.
Symptoms:
Dry mouth has several symptoms. If you have some or all of the symptoms mentioned below, then you are more than likely suffering from dry mouth.
- A sticky and dry feeling in the mouth.
- The frequent feeling of being thirsty.
- A dry, parched feeling in the throat.
- The tongue being dry, raw and red.
- There is discomfort and problem while you are speaking or experiencing problems with chewing, tasting or swallowing food.
- Experiencing dry nasal passages, a sore throat or hoarseness in the voice.
- A tingling or slightly burning sensation in the mouth but particularly in the tongue.
- Having a bad breath.
Those who have experienced it would vouch for the fact that a toothache is one of the worst pains. There could be times when the attack happens out of nowhere and you are crying for relief.
The tooth has 2 parts - the visible part called the crown and the invisible part called the root which is embedded in the jaw bone and covered by the gums.
Both the crown and the root have 3 layers from inside out. The crown has enamel, dentin, and pulp. The enamel is the mineralized part of the tooth, dentin has fine sensory dentinal tubules, and the pulp receives nerve and blood supply to the tooth through a small orifice at the end of the tooth called the apex. On the root surface, instead of enamel, there is a softer substance called cementum. The dentin and the pulp continue through the tooth but are thinner in the root portion of the tooth.
The mouth has the largest amount of bacteria in the body. These act on the food deposits on the tooth and produce acid which leads to the breakdown of the enamel. The only symptom when enamel breakdown happens is food lodgment, and it continues till treatment ensues. Once the breakdown reaches the dentin, sensitivity sets in, and most people go for treatment then. If not, the next layer is the pulp, when there is severe pain. This acute pulpitis causes pain in spurts and can be unbearable.
On the root surface, if there is periodontal disease and the gum line goes down, then cementum gets worn off (far more easily than enamel) and decay reaches the dentin and pulp (again faster than in the crown).
Whatever the case, the treatment would be the same:
- Dental examination, clinical testing, and x-rays would be diagnostic. Tapping the tooth would reproduce the same pain and that is indicative of acute pulpitis
- Antibiotics and painkillers would be given to control the pain
- Once the infection subsides, root canal therapy is initiated. Using the decayed portion to gain access to the root, thin instruments called reamers and files are used to clean out the pulp space completely. They are then shaped to accommodate an inert substance called gutta percha which ensures infection does not seep into the tooth again.
- With RCT, the tooth is weakened, and therefore a crown needs to be placed. This could either be a ceramic crown or a full metal crown based on economic and esthetic reasons.
The best way to avoid this is regular visits to a dentist so that decay is identified in the early stages and treated with the minimal cost and maximum natural tooth preservation.