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Which cyst develops due to pulpal inflammation and is always associated with a non- vital tooth?  

A 36 year old patient presents with a well-defined, inverted pear-shaped radiolucency between the maxillary lateral incisor and canine on a panoramic radiograph.  The roots of the adjacent teeth are diverging.  Which of the following is the most likely diagnosis?  

Taurodontism, characterized by large pulp chambers and short roots is most commonly seen in patients with which of the following conditions?   

A Static bone cyst is characterized by which of the following features? 

A well defined multilocular radiolucent lesion in the posterior mandible is seen on a routine panoramic radiograph of a 42 year old patient. The patient reports no pain or swelling. Surgical enucleation is performed, and histology shows the cyst has a keratinized epithelial lining.  The lesion recurs within a year.  Which of the following is the most likely diagnosis? 

A patient presents for a routine dental examination.  A radiograph reveals a well defined, heart-shaped radiolucency in the midline of the maxilla, near the anterior nasal spine.   

Which structure removes aged RBCs from circulation?

All of the following are functions of antibodies except

What causes unidirectional flow of the action potential?

What is the name of the space between neurons?