Invasive cervical resorption: report on two cases.

Invasive cervical resorption is a relatively uncommon form of external root resorption that may lead to tooth loss. This article presents the clinical and radiologic diagnoses and treatment modalities of invasive cervical resorption in 2 patients. In the first case, we did a slow orthodontic forced eruption to make the bone grow coronally. After 6 months, the tooth was extracted and an immediate implant was placed. Eight months later a zirconia crown was cemented. In the second case, we performed root canal treatment followed by a composite reconstruction of the defect. These 2 cases illustrate different approaches based on the extent of the defect.