Resorptive lesions: Although
these can be seen in the dog, they are much more prevalent in the cat population.
Most studies agree that on average, about 50% of domestic cats have at least
one resorptive lesion.
Due to the destruction of the protective enamel that covers
the surface of the tooth, these lesions can be very sensitive to those affected.
Several theories have been proposed for the cause of these lesions, but to date,
none has been proven. We do believe the incidence has increased over the past
100 years. Unless caught early, most of the teeth affected by resorptive lesions
are best extracted.
Very early lesions may benefit from glass ionomer restoration,
but in most cases, the restorations are lost and the lesion progresses within
Dental radiographs are essential for proper treatment planning. In
general, when extracting teeth with resorptive lesions, it is always best to
remove the entire tooth root, but in cases where the roots are resorbing, no
evidence of periapical or periodontal disease exists, stomatitis is not present,
and in the event a root fractures, this root should continue the resorption process
if left as is and the gingiva sutured over the extraction site.