An Overview of Dental Anatomy
How many teeth comprise the primary dentition? A. 15 B. 20 C. 30 D. 32
20
Which surface is known as the chewing surface of posterior teeth? A. Occlusal B. Lingual C. Mesial D. Distal
Occlusal
The area from the CEJ to the cusp tip is known as ____________________. A. clinical crown B. anatomical crown C. root canal D. apex of the crown
Anatomic Crown
Which one is the tooth components has an equivalent hardness to bone? A. Cementum B. Enamel C. Dentin D. Dentin tubules
Cementum
The inter and outer surfaces of the alveolar bone are made up of _______________. A. Spongy bone B. Cortical plates C. Cementum D. Oblique fibers
Cortical plates
The top surface of the tongue is known as the ___________ surface. A. Ventral B. Dorsal C. Median D. Lateral
Dorsal
What is the hardest substance in the body? A. Enamel B. Cementum C. Pulp D. Dentin
Enamel
Which tissue in the periodontium is not attached to the tooth and forms a collar around the tooth? A. Attached gingiva B. Marginal gingiva C. Free gingiva D. Gingival ligament
Free gingiva
Which of the following bones form the forehead? A. Nasal B. Frontal C. Parietal D. Ethmoid
Frontal
Which teeth have a cutting edge? A. Incisors B. Premolars C. Bicuspids D. Molars
Incisors
The wall of the tooth socket is lined by what type of bone? A. Trabecular B. Dentin C. Lamina dura D. Cancellous
Lamina Dura
A dentition that is not aligned in a normal functional relationship is termed as in ______________? A. nonfunctionabality B. malocclusion C. mass occlusion D. dominant occlusion
Malocclusion
Which arch in the mouth contains 16 teeth? A. Maxillary B. Mandibular C. Lateral D. Maxillary and Mandibular
Maxillary and Mandibular arch
Which teeth are responsible for grinding food? A. Primary incisors B. Molars C. Canines D. Premolars
Molars
The tooth is attached to the underlying bone through which of the following? A. Periodontal fibers B. Attached gingiva C. Cementum fibers D. Bone projections
Periodontal fibers
The midline depression above the upper lip is known as? A. Philtrum B. Septum C. Labiomental Groove D. Tubercle of the Lip
Philtrum
Which tooth appears in the permanent dentition but not in the primary dentition? A. Molars B. Lateral incisors C. Central incisors D. Premolars
Premolars
Which type of substance in the tooth continues to grow throughout the lifetime of the tooth? A. Cementum B. Enamel C. Secondary Dentin D. Nerves and Blood Vessels
Secondary Dentin
What is the non-bony portion of the palate known as? A. Hard Palate B. Frenum C. Vestibule D. Soft Palate
Soft Palate
The ___________________ is a nonbony muscular projection that hangs from the midline at the posterior of the soft palate. A. Frenum B. Septum C. Tori D. Uvula
Uvula
