Image: Felice Wölke via Unsplash
A tooth resorptive lesion (TRL), also known as a neck lesion, is a tooth defect caused by the action of cells called odontoclasts. Tooth structure is destroyed, starting on the roots, and eventually affecting the crown of the tooth. The cause of the lesions is unknown, although the mechanism of the process is now better understood. Tooth resorptive lesions are most commonly seen in cats, but can be seen in dogs too. We know from human cases that these lesions are painful when they become evident on the crown surface and require prompt treatment.
Resorptive lesions are not always visible to the naked eye, due to them starting below the gum line. The appearance on the tooth may be hidden by an overgrowth of gum tissue (gingiva). The tooth may also have a pink spot, or part of the tooth may be missing. Often, missing teeth in cats were originally teeth with resorptive lesions. Many of these lesions are only identified using dental radiographs (x-rays), hence the reason that all our patients undergoing dental treatment have x-rays taken. Currently, the only treatment option for teeth with these lesions is extraction.
There are three different types of tooth resorptive lesions
Type 1 - Destruction of the crown, but radiographically, the root retains a normal appearance with an easily noticeable periodontal ligament.
Type 2 - Radiographically the root appears to be disintegrating and not easily noticeable from bone.
Type 3 - A two root tooth can have a type 1 root and a type 2 root of the same tooth.
X-Ray of Type 1 Tooth Resorptive Lesion
X-ray of Type 2 Tooth Resorptive Lesion
Cats and dogs will continue to eat, even if they have dental pain. We offer free dental checks with one of our Vets. During the consult they will assess your pet’s mouth, give you an estimate if any dental work is needed, and advise on home dental care.
Throughout February we are offering up to 15% off dental procedures. Call us today on 01665 252 250 if you would like a dental consultation or to book in for a procedure.
If your pet is insured, it is always worth checking with your insurance company, as they may cover the cost of dental treatment.
