Connective Tissue Lesions
Cementoblastoma
Etiology • An uncommon, benign tumor of mesenchymal odontogenic
origin • Unknown stimulus
Clinical Presentation • Usually affects patients under the age of 30 years • Mandibular molar-premolar region is most common site • Jaw expansion, pain, or tenderness • Radiopacity with peripheral radiolucent halo • Mass fused to root of affected tooth
Radiographic Findings • Focal radioactivity • Obscuration of root apex • Thin radiolucent rim
Cementoblastoma
Etiology • An uncommon, benign tumor of mesenchymal odontogenic
origin • Unknown stimulus
Clinical Presentation • Usually affects patients under the age of 30 years • Mandibular molar-premolar region is most common site • Jaw expansion, pain, or tenderness • Radiopacity with peripheral radiolucent halo • Mass fused to root of affected tooth
Radiographic Findings • Focal radioactivity • Obscuration of root apex • Thin radiolucent rim
Diagnosis • Radiographic findings • History of pain/tenderness • Histologically: abundant number of cementoblasts are associated
with an irregular network of hard tissue (cementum) • Microscopically similar to osteoid osteoma
Differential Diagnosis • Focal osseous dysplasia • Ossifying fibroma • Osteoma
Treatment • Enucleation (with associated tooth)
Prognosis • Excellent