Dental Hygiene Prometric Practice Questions & Answers 100% Correct.

Radiographic description of Zygoma - ANSWERThis is the cheek bone! It is a radiopaque landmark over the maxillary molars. Radiographic description of Zygomatic Process - ANSWERThis is the extremely radiopaque "U" shaped landmark located at the apices of the first and second maxillary molars Radiographic description of the mental foramen - ANSWERradiolucent landmark located at the apices of the mandibular premolars. Radiographic description of a lateral periodontal cyst - ANSWERthis is a cyst that is located between the roots of two teeth. It can be confused with the mental foramen. But it will not be located at the apices. Ameloblastoma - ANSWER1. Usually multilocular radiolucency 2. Usually posterior mandible 3. Soap bubble-like appearance 4. High recurrent rate Taurodontism - ANSWERmolar teeth that have expanded pulp cavities and fused roots Concrescence - ANSWERUnion of teeth by cementum external oblique ridge - ANSWER...A radiopaque band extending downward and forward from the anterior border of the ramus of the mandible. the external oblique ridge is superior to the internal oblique ridge internal oblique ridge - ANSWERA radiopaque band that extends downward and forward from the ramus When both appear, the external oblique ridge is superior to the internal oblique ridge What is the panoramic radiograph used for? - ANSWERThird molars cysts tumors How old is a patient with their first permanent molar present? - ANSWER6 years How old is a child when their permanent premolars begin to erupt into their mouth - ANSWER10-12 years How old is a child when their maxillary centrals erupt? Laterals? - ANSWER7-8 years (central) 8