DDS 6234DH 3234October 19, 2009 Dystrophic Idiopathic Metastatic Heterotopic Deposition of calcium into sites of inflammation or dead and dying tissues Usually asymptomatic Radiographically, barely visible to large area of radiopacity Chronic inflammation of lymph nodes Asymptomatic Common site: submandibular, cervical nodes Well-defined periphery, lobulated, laminated Chronic inflammation Asymptomatic when small Pain, swelling, dysphagia with large calcifications More common in older people Common site: superimposed over ramus on panoramic Multiple, small, ill-defined radiopacity Arteriosclerosis Usually asymptomatic Carotid calcifications Pair of thin radiopaque parallel lines Sialolith Phlebolith Antrolith Rhinolith Calcified obstruction in the salivary duct Chronic retrograde infection may calcify mucus plugs Intermittent swelling, pain with eating Usually Wharton’s duct Sialogram Forms at the older thrombi or in hemangiomas Soft tissue swelling or discoloration Round to oval, smooth borders Usually multiple Random distribution Calcification of stagnant mucus  Asymptomatic, may cause sinusitis Located above the floor of maxillary sinus Differentiate from root tips Calcification of the mucus in the nasal cavity On a pan or a periapical, may appear as an antrolith A 90 degree view confirms the location Soft tissue calcification due to rise of serum calcium and serum phosphates Hyperparathyroidism Usually bilateral and symmetrical Normal bone in abnormal location Organized, well-formed bone formed in soft tissues May show trabeculation, marrow spaces Ossification of stylohyoid ligament Usually bilateral Continuous or disjointed May impinge on glossopharyngeal nerve Eagle’s syndrome: recent history of neck trauma Stylohyoid syndrome: no history of trauma Ossification in the interstitial tissues of muscle. Heavy muscular strain Multiple injections Young males Masseter, sternocleidomastoidView at multiple planes Using CBCT