Dental Hygiene Prometric Practice Test Questions with Complete Solutions, Graded A+

Radiographic description of Zygoma This is the cheek bone! It is a radiopaque landmark over the maxillary molars. Radiographic description of Zygomatic Process This is the extremely radiopaque "U" shaped landmark located at the apices of the first and second maxillary molars Radiographic description of the mental foramen radiolucent landmark located at the apices of the mandibular premolars. Radiographic description of a lateral periodontal cyst this 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 1. Usually multilocular radiolucency 2. Usually posterior mandible 3. Soap bubble-like appearance 4. High recurrent rate Taurodontism molar teeth that have expanded pulp cavities and fused roots Concrescence Union of teeth by cementum external oblique ridge ...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 A 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? Third molars cysts tumors How old is a patient with their first permanent molar present? 6 years How old is a child when their permanent premolars begin to erupt into their mouth 10-12 years How old is a child when their maxillary centrals erupt? Laterals? 7-8 years (central) 8-9 years (lateral) What tooth replaces Letter K? #20 Premolars replace the first and second primary molars. How old is a child when their lower canines erupt? 9-10 years What does the mesenchyme cells give rise too? Dentin, Pulp, and cementum Oligodontia having 6 or MORE congenitally missing teeth Hypodontia less than 6 congentially missing teeth. Can premolars and canines have bifurcated roots? Yes it is a variation from normal Clinically the patient presents with Hutchinson incisors and mulberry molars. What condition does this patient have? Congenital syphilis An african american patient comes in and you note there is a white film on his buccal mucosa that disappears when stretched. What is this? Leukoedema Enamel Pearl (Enameloma) Ameloblasts that reached the tooth of the tooth causing an enamel pearl. Ankylosis fusion between the alveolar bone and cementum. It can cause aplasia of the permenant tooth. (failure to develop) What is the only pink intrinsic stain found on teeth? Internal resorption What is the cause of a diastema? does it need treatment? it is genetic. It does not need treatment but if the patient wants braces can remove the gap. The tooth tests non-vital. What kind of abscess is present? periapical abscess What does the hepatitis B vaccine also protect you from? Hepatitis D The patient presents with lingual erosion. What would you ask them? What is the treatment? Ask if the patient is bulimic. Treat with a sodium bicarbonate rinse (baking soda and water) Fluoride is found in what? Tea, Fish and pork. Not well water. The patient presents with gingival recession at #24 facial. What is the cause? Frenum attachment A white lesion that can be wiped off Candidasis leukoplaquia