Jones 1 Flashcards
Features of Internal resorption
- Rare; occurs after injury to pulpal tissues such as physical trauma or caries-related pulpitis
- Asymptomatic; discovered through routine radiographs
- Most common pattern: inflammatory resorption
- Pink tooth of Mummery
- Coronal pulp is affected
Histopathologic features of Internal resorption
- Vascularized connective tissue
- Inflammatory infiltrate
Treatment and prognosis of Internal resorption
- Endodontic therapy
- Extraction
Features of External resorption
- Common; most cases are mild
- Associated with numerous factors
- Individual susceptibility to resorption after a stimulus
- May be due to: Cysts, Dental trauma, Orthodontic therapy, Excessive occlusal forces, Periradicular inflammation, Reimplantation of teeth
- “Moth-eaten” loss of tooth structure usually in the apical or midportions of the root
Histopathologic features of External resorption
- Vascularized connective tissue
- Inflammatory infiltrate
Treatment and prognosis of External resorption
- Identify and eliminate the cause
- Endodontic therapy
Features of Periapical granuloma
- Mass of subacutely or chronically inflamed granulation tissue at the apex of a nonvital tooth
- May occur along the lateral surface of a nonvital tooth
- Usually asymptomatic
- Swelling and mild sensitivity may occur
Radiographic features of Periapical granuloma
- Circumscribed or ill-defined radiolucency
- Root resorption may be present
- Loss of the lamina dura
Histopathologic features of Periapical granuloma
- Inflamed granulation tissue
- Usually lymphocytes, plasma cells, and histiocytes
Treatment of Periapical granuloma
- Extraction
- Nonsurgical endodontic therapy
Features of Periapical cyst
- Inflammatory cyst that arises at the apex of a non-vital tooth
- May occur along the lateral surface of a non-vital tooth
- Usually asymptomatic
- Swelling and mild sensitivity may occur
Radiographic features of Periapical cyst
- Well-delineated radiolucency
- Loss of the lamina dura
- Root resorption
- May become quite large
Histopathologic features of Periapical cyst
Lined by inflamed stratified squamous epithelium
Treatment of Periapical cyst
- Extraction
- Nonsurgical endodontic therapy
Features of Residual periapical cyst
Well-defined radiolucency within the alveolar bone at the site of a previous tooth extraction
