Posts Tagged ‘dentistry’

Dental Hygiene: Important for Cats

Comments Off Written on February 1st, 2011 by
Categories: Dr.'s Advice
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A healthy pet is a happy pet, and dentistry should be considered a part of the annual routine care of your cat. As owners we see the dentist on average twice a year for cleaning and check ups, why not give our cats the same treatment as we give ourselves?

There is no age, breed, sex that is more at risk than another but what is difficult is the fact that our cats can not tell us when they are having mouth issues, we need to look for the signs and then follow through. Unlike its human owner, the cat seldom develops cavities. Like its human owner, the most common and serious dental problem is periodontal disease.

Periodontal disease is a disease of the supporting tissue of the teeth. It is the most common infectious disease of animals and man today. 85% of cats over the age of 3 years old are affected. Periodontal disease is progressive and irreversible by nature, and can lead to severe health problems including loss of appetite, generalized infections, kidney, liver or heart disease, and behavioral changes.

The disease begins as a simple marginal gingivitis and progresses to periodontitis with bone loss and eventual loss of teeth. The process begins with the accumulation of plaque, which is a soft granular deposit, on the tooth surfaces. Thin layers are not visible. Plaque undergoes mineralization to form calculus (or tartar) and it provides a rough surface for the accumulation of additional plaque and promotes gingivitis. Bacteria thrive in plaque and on calculus formations and the normal bacterial flora of the mouth changes. Bad breath due to accumulation of pus, dying tissue, food debris, and bacteria may be the first noticeable symptom of periodontal disease.

Periodontitis results from the inability of the body’s immune system to fight the continual destructive forces of the oral bacterial toxins. The length of this process from mild gingivitis to periodontitis with bone and tooth loss depends on the cat’s genetic capabilities, immune system, diet, environment, and most importantly, the owner’s awareness of the problem, willingness to do home care, and initiative in obtaining professional veterinary care.

Gingivitis is a reversible disease process with appropriate treatment.

Periodontitis is usually a permanent condition due to bone loss, but can often be controlled if identified early.

Severe periodontal disease is a painful condition for the cat. In most cases, your cat will continue to eat and learns to tolerate the pain. Remember, your cat cannot tell you he has a tooth ache.

You may be advised that your cat needs to have his teeth cleaned. This is called a dental or oral prophylaxis. Dental hygiene is as important for your cat as it is for yourself. Imagine if you never brushed your teeth or had a periodic cleaning!

Gingivitis and periodontal disease are the most commonly diagnosed disease processes in the otherwise healthy cat. If left untreated, the disease process progresses and causes pain and eventual loss of teeth. Uncontrolled periodontal disease can become systemic and predispose the cat to problems such as heart failure, liver and kidney disease, septicemia (bacterial infection of the blood), and behavioral changes.

  • Anesthesia is required to properly scale and polish the teeth. All cats should have a physical examination before anesthesia.
  • We further recommend that cats 8 years and older have bloodwork before anesthesia to evaluate the kidney and liver function.
  • If indicated, a thyroid level should also be checked.
  • If there is severe gingivitis and/or stomatitis (inflammation of the tissues of the mouth), testing for Feline Leukemia (FeLV), Feline Immunodeficiency Virus (FIV), and Feline Bartonella may be recommended.

The cat should have no food after midnight the night before the prophylaxis and be admitted to the hospital between 8–10:00am the day of the procedure. The cat will be given a sedative to allow the insertion of an endotracheal tube and will be maintained on an anesthetic gas.

The procedure

The tartar and plaque are removed by hand scaling and with an ultrasonic scaler that produces vibrations that fracture the calculus and flushes it away with a water mist. Next the gum line and the tooth roots are examined and appropriate therapy is initiated, then the teeth are polished. This will smooth rough surfaces of the teeth and slow down the accumulation of new plaque and tartar. A fluoride treatment is the last step.

Our intent is to save as many teeth as possible; however, this is not always feasible depending on the condition of the individual tooth.

The cat will be released in the evening and his/her dental health, home care recommendations, and the need for further treatment will be discussed at that time.

Feline Oral Resorptive Lesions

Comments Off Written on December 12th, 2010 by
Categories: Dr.'s Advice
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Odontoclastic resorptive lesions (ORL) are a very common problem for our patients. Although rarely seen in most species, we see these lesions in more than 50% of our feline patients. Any tooth can be involved, but the premolars and molars are most commonly affected. The pattern is usually symmetrical. Signs of this condition can include decrease in appetite, preference for soft food, failure to chew food, oral odor, drooling and a cat’s reluctance to allow his/her mouth to be touched.

The condition begins at the tooth root and gradually moves from the outside of the root into the inside of the tooth and up to the crown. The root surface is replaced by bone-like tissue. Eventually, the enamel is reabsorbed and a hole in the tooth is apparent. It is not until this point in the disease that the lesion can be seen on visual exam. The tooth is so weakened that even chewing can cause the tooth to fracture and leave the root exposed.

These lesions are painful and the best treatment is extraction. The extent of the extraction is based on radiographic changes. ORL are not the same as cavities commonly found in people. Those lesions have never been described in cats.

The cause of this condition is unknown. There is currently no treatment to prevent the development or progression of this disease.

The goal of treatment is to prevent pain. In the early stages of this condition it does not appear to be painful. In later stages when the inside of the tooth is exposed to the oral cavity, discomfort is likely.

Treatment:

  1. Conservative — If the lesion is only visible radiographically and is not painful, then monitoring may be the only treatment needed.
  2. Extraction — Teeth with ORL are difficult to extract. The root is resorbing and being replaced with bone and in some areas the bone and the tooth are fused. Many times, open, surgical procedures are needed to assure successful extraction. Radiographs are essential to determine the appropriate treatment.
  3. Coronal amputation — when the root has been extensively resorbed and it is not possible to remove all the tooth substance, the removal of the crown of the tooth may be the best treatment. If this treatment is chosen, radiographs are used to ensure that the root is resorbing and that healing is uneventful.

Regardless of the treatment plan the goal is to make every patient comfortable. Hopefully in the future, the cause of this condition will be found and prevention will be possible.

Source: Cat Spay of Santa Fe