Feline Dental Health - ACFA North Central RegionFeline Dental Health Dr. Amy Hanson, DVM...
Transcript of Feline Dental Health - ACFA North Central RegionFeline Dental Health Dr. Amy Hanson, DVM...
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Feline Dental Health
Dr. Amy Hanson, DVM
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Classification of feline dental issues
Causes and risk factors of dental disease
Managing dental disease and maintaining dental health
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Structural ◦ Variation in tooth number and morphology
Anodontia
Oligodontia
Supernumerary
Persistence of deciduous teeth
Gemination
Fusion
◦ Malocclusion
Skeletal
Dental
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Swellings/tumors ◦ Osteomyelitis
◦ Eosinophilic granuloma complex
◦ Neoplasia
Benign
Malignant
Squamous cell carcinoma
Fibrosarcoma
Trauma ◦ Fractures
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Periodontal disease ◦ Gingivitis
Inflammation of gingival tissue only
◦ Periodontitis
Loss of tooth supporting tissue
Varying severity of disease
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Gingivitis ◦ Gingivitis can occur in any breed at any age
◦ Juvenile hyperplastic gingivitis
6-8 months old
Persians and Abyssinians predisposed, but can occur in any breed
Inflammation of gingiva and overgrowth covering crowns
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Gingivitis
Hyperplastic Gingivitis
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Periodontitis ◦ Gingivitis-periodontitis (stomatitis, LPS, etc)
Juvenile onset gingivitis-periodontitis
Widespread oral inflammation
Before 9 months
Siamese, Maine Coon, DSH
halitosis at permanent teeth eruption
Adult gingivitis-periodontitis
No age, sex or breed predilections
Persians, Abyssinians, Siamese, Burmese, Himalayans can have more severe form
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Stomatitis
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Periodontitis ◦ Tooth Resorption (FORL, neck lesions, etc.)
Common dental finding in cats
25%-75% cats affected
Usually first occur at around 2 yrs. age
Number of lesions increase with age
No sex or breed predilection, but seem to occur more often in purebred cats with Persians and Siamese at forefront
Crown or root is resorbed by the body
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Resorptive Lesions
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Gingivitis ◦ Plaque, plaque, plaque!!!
Bacteria colonize glycoprotein layer (biofilm)
Unique, resistant environment
Irritation of gingiva
Survival of pathogenic bacteria subgingivally
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Periodontitis ◦ Bacteria by-products stimulate host immune
system Cytokines and prostaglandins weaken and destroy
supporting tissues of teeth
Tartar (Calculus) ◦ Mineralized plaque Creates protected environment for loads of bacteria
Close contact with tissues Accelerates development of periodontitis
Cannot be removed with simple brushing
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Stomatitis, LPS, etc. ◦ Cause not clearly defined
◦ Inadequate or exaggerated host response
Multifactorial
Genetic
Environmental stress
Diet
Viral
Bacterial
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Stomatitis ◦ Genetics
Breed predisposition
Brachycephalic breeds can have malocclusion which leads to plaque build-up
Inheritable???
◦ Environmental Stress
Overcrowding, inadequate nutrition
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Diet ◦ Dry vs. wet food
Dogs and cats fed canned diets have higher incidence of plaque, tartar and dental disease
Dry diets requiring much mastication helps reduce plaque
Cats don’t tend to chew their food
Health benefits to feeding canned food
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Viral ◦ FeLV and FIV thought to be prevalent in cats with
periodontal disease
Immuno-compromised status exacerbates dental disease
◦ Bartonella
Many cats with titers do not have dental disease and many with dental disease don’t have titers
◦ Calicivirus
Shown to have significant presence in cats with chronic stomatis (97% in one study)
Herpes virus may also have a role
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Bacterial ◦ Feline mouth full of bacteria
Both gram-positive and gram-negative
Pasturella and Psuedomonas very common in cat mouth
Contributes to biofilm and plaque formation
General Health ◦ Other systemic diseases can contribute
Diabetes, hyperthyroidism, immune-mediates disease, etc.
Anything that compromises the immune system
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Tooth Resorption ◦ Etiology not entirely clear
Age definitely risk factor
Diet may play significant role
Higher Mg content???
Excessive Vitamin D may or may not play a role
Studies are counter-indicative
Domestication
Exclusively indoor cats
Neutering???
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Control the plaque!!! ◦ Brushing is ideal management tool
Not always easy in cats
◦ Dental hygiene rinses
Water-additives
Mouth rinses
Sometimes difficult to use
Some cats sensitive to these products
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Control the plaque!!! ◦ Diet and treats
Larger kibble to encourage chewing
Dental treats for cats
C.E.T. treats
Greenies
◦ Routine dental scaling and polishing
Only way to remove tartar and help control subgingival plaque
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Juvenile Hyperplastic Gingivitis ◦ Dental scaling and polishing
May need to be performed every 6 months until hit puberty
◦ Resection of hyperplastic gingiva
Laser ablation is helpful
◦ May develop chronic stomatitis or may revert to normal
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Stomatitis ◦ Must start with dental cleaning, charting, and
radiographs Removal of plaque and tartar may be enough to stem
immune-response
◦ Antimicrobials Clindamycin
Clavamox
Metronidazole
Doxycycline
Azithromycin
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Stomatitis ◦ Corticosteroids
Prednisolone
Depo-medrol
Not a long-term therapy due to consequences of chronic use
Immunomodulators
Chlorambucil
Cyclosporine
Blocks T-helper cells in immune response
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Stomatitis ◦ Non-steroidal anti-inflammatory drugs
Meloxicam (Metacam)
Piroxicam
Azathioprine
Can cause fatal toxicity in cats
◦ Interferon
Feline Interferon
Difficult to get in US, expensive
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Stomatitis ◦ Other options
Bovine lactoferrin
Immune stimulant
Megestrol acetate
Levamisole
Antihelmenic and immunomodulator
Lysine
Eicosanoids (fatty acids)
immunomodulators
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Stomatitis ◦ Surgical extractions
Caudal teeth
Full mouth
Need pain control and antibiotics
May see full recovery, may not
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Tooth Resorption ◦ Lesions limited to root surface and not exposing
pulp cavity not painful
Can monitor over time to make sure there is not progression
Can attempt restoration, but is a progressive disease, so is not a long-term therapy
◦ Lesions exposing the pulp cavity are extremely painful
Extraction of tooth is only option
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Malocclusions, Swellings, Fractures ◦ Surgical corrections for malocclusions and fractures
◦ Biopsies of tumors to determine nature
Resections of tumors
Can remove portions of jaw if necessary
Ancillary chemotherapy for some neoplasia
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Better understanding of the classifications of dental issues in felines
Clearer idea of the causes and risk factors associated with feline dental disease
Current management of various types of feline dental issues
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