Eruption Guidance for Impacted Lower First Permanent Molar caused by Odontogenic Tumor

Two Cases

Abstract

Here, we present two cases of eruption guidance for an impacted lower first molar caused by an odontogenic tumor in mandible.

Case 1. An 8-year-1-month-old boy came to us with impaction of the lower right first molar. In panoramic radiograph and cone beam chromatography findings, the impacted tooth showed an irregular translucent area around the crown. Histopathological diagnosis of the tumor was ameloblastic fibroma. Eighteen months after performing surgery, the first molar erupted with eruption guidance treatment including traction

Case 2. A 6-year-10-month-old boy had impaction of the bilateral lower first molars. In panoramic radiograph and cone beam chromatography findings, both impacted first molars showed an irregular translucent area around the crown. In addition, resorption of the distal root of the primary second molars was also observed. Histopathological diagnosis of the tumor was odontogenic fibroma. Twelve months after fenestration surgery, the first molars spontaneously erupted.

No symptoms of recurrence have occurred in either of these cases.