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DHG 125 Test #1
Dental Anatomy, oral cavity, pharynx, and face, neck regions.
| Question | Answer |
|---|---|
| What is the Upper dental arch? | Maxillary |
| What is the Lower dental arch? | Mandibular |
| Adult teeth that replace primary teeth | Permanent Teeth |
| Sextants divide into ____ areas? | 6 (max right posterior, anterior, max left posterior, Mand. right posterior, anterior, mand. left posterior) |
| Quadrants divid into ____ areas? | 4 (R+L maxillary and R+L mandibular) |
| 32 teeth= (4)central incisors+(4)lateral incisors+(4)Canines+(8)premolars+(12) molars. | Permanents dentition |
| 20 teeth= (4)central incisors+(4)lateral incisors+(4)canines+(8)molars. | Primary/Deciduous dentition |
| What kind of teeth are central and lateral incisors and canines? | Anterior teeth |
| What kind of teeth are premolars and molars? | Posterior teeth |
| Which teeth cut or bite food. | Central Incisors |
| Which teeth assist in cutting food. | Lateral Incisors |
| Which teeth tear food? | Canine |
| Tooth surface toward midline? | Mesial |
| Tooth surface away from the midline? | Distal |
| Tooth surface the face? | Facial |
| Tooth surface toward the cheek? | Buccal |
| Tooth surface toward the lip? | Lingual |
| Tooth surface on biting surface of the posterior teeth? | Occlusal |
| Tooth surface on biting surface of the anterior teeth? | Incisal |
| The part of the tooth that is usually above the gum tissue? | Crown |
| The part of the tooth below the gum tissue below the pulp? | Root |
| Outering covering of the root, yellow in color. | Cementum |
| White in color, is the hardest substances in the body, and is the outer covering of the crown. | Enamel |
| Major internal portion of the tooth. | Dentin |
| Nerve of the tooth, blood/nerves supplied here. | Pulp |
| Area between the root. | Furcation |
| 2 roots | Bifurcation |
| 3 roots | Trifurcation |
| Tissue that surrounds the tooth and bone. | Gingiva |
| A ridge that forms the borders of upper and lower jaws containing teeth socket; tooth bearing portion. | Alveolar process |
| End point of the tooth root. | Apex |
| Opening at apex where nerve enters tooth. | Apical foramen |
| Lining of tooth socket. | Lamina dura |
| Junction of cementum and enamel. | Cementoenamel junction (CEJ) |
| Junction of dentin and enamel. | Dentinoenamel junction (DEJ) |
| Root divided into thirds. | Cervical, Middle, Apical |
| Crown- Facial surface divided into thirds. | Mesial, Middle, Distal |
| Crown-Proximal surface divided into thirds. | Incisal/Occusal, Middle, Cervical |
| That portion of the tooth that is covered by enamel. | Anatomical Crown |
| That portion of the tooth that is visible in the mouth. | Clinical Crown |
| That portion of the root that is visible in the mouth. | Clinical Root |
| That portion of the root covered with cementum from the cementoenamel junction to the apex. | Anatomical Root |
| An angle that is formed by the union of two tooth surfaces. | Line angles |
| An angle that is formed by the union of three tooth surfaces. | Point angles |
| Surfaces that dip in. | Concave |
| Surfaces that curves out. | Convex |
| Mesial and distal surfaces between adjacent teeth. | Proximal |
| Area on tooth where the proximal surfaces touch. | Contact Area |
| Where the occlusal cusp of one tooth touches the occlusal portion of another tooth in the opposing arch. (posterior teeth when they touch) | Contact Point |
| Triangular shaped spaces between the teeth. | Interproximal space |
| Proximal surfaces and contact areas of two teeth, normally filled with gingival tissue. | Interdental papilla |
| Spaces between the teeth that are occlusal or incisal to the contact areas. Allow food to be coursed away from contact areas to keep food from packing in between the teeth. | Embrasure |
| Crest of curvature, widest part of the crown. | Height of contour |
| How deep the curve is on the cervical line. Depends on the height of the contact area and on the diameter of the crown labiolingually of buccolingually. Deeper on anterior teeth. | Curvature of the CEJ |
| Shaped like shovel that cuts through food and forces it toward the lingual surface onto the gingiva. | Incisors |
| Shaped like wedge that forces food off the cusp onto the cingulum and gingiva. | Canines |
| Food is deflected onto the occlusal surface from the cusps to grind the food. | Premolars and molars |
| How does the food travel? | anterior teeth back to the posterior teeth and is then prepared to swallow |
| Allows food to become trapped in these areas? | Deep pits and fissures |
| Allow food pass over the surface during chewing. | Mastication |
| Most common numbering system where each tooth has a separate number. | Universal System |
| Utilizes a two- digit system of designating teeth.The mouth is divided into quadrants. | International System |
| Most common in Orthodontics offices, the mouth is divided into quadrants each quadrant is designated by a symbol. | Palmer Method |
| What does this Acronym stand for? DAQT | Dentition (permanent or primary), Arch (mandibular or maxillary), Quadrant (right or left), and Tooth (central, lateral, etc) |
| Which region has the forehead and area above the eyes? | Frontal region |
| Which region has the eyeballs and its supporthing structurs? | Orbital region |
| Which region has the External nose? | Nasal region |
| Which region is the inferior orbit of the eye and lateral to the nasal region? | Infraorbital region |
| Which region has the bony support of the cheek, lateral to the nasal region, TMJ? | Zygomatic region |
| Which region has the soft tissues of the cheek? | Buccal region |
| Which region has the lips and oral cavity? | Oral region |
| Which region has the chin? | Mental region |
| Largest Salivary gland located by the posterior aspect of the thyroid gland. | Parotid salivary gland |
| Inner portion of the buccal mucosa, is a small elevation of tissue. (near 2nd molars) | Paroid Papilla |
| Smaller salivary gland, located on the lower side of the face. | Submandibular salivay gland |
| Small papilla at the anterior end of each sublingual fold. | Sublingual caruncle |
| Smallest major salivary gland , located in the floor of the mouth. | Sublingual Salivary Gland |
| ridge of tissue on each side of the floor of the mouth | Sublingual fold |
| Located between the eyes. | root of nose |
| Separate the nares. (what you have surgery on when you get a nose job) | Nasal Septum |
| Bounded laterally by winglike cartilaginous winglike structures | Ala |
| Tip of nose | Apex (of nose) |
| Inferior to the apex on each sided of the nose. | Naris |
| Area where the pink-red lip tssue meets the facial skin. (where you wear your lip liner) | Vermilion border |
| Darker apperances than the surrounding skin. (where you wear your lipstick) | Vermilion zone |
| Area at the corners of the mouth where the lips meet. | Labial commissure |
| Median groove in the center external sirface of the upper lip. | Philtrum |
| Muscle forming the cheek, which is felt when a patient clenches the teeth together. | Masseter Muscle. |
| What sign is it when you can not see the vermilion border? | Submandibular duct |
| Area where the pink-red lip tssue meets the facial skin. (where you wear your lip liner) | tubercle |
| An indentation on the lower border of the mandible, near the angle where the ramus starts into its upright position | Mandibular Notch |
| Area along the lower edge of the mandible where the upward curve of the mandible forms. | Angle |
| On the lateral aspect of the mandible, the stout, plate extends upward and backward from the body of the mandible on each side | Ramus |
| At the anterior border of the ramus is a thin, sharp margin. | Coronoid process |
| The main portion of the anterior border of the ramus forms a concave forward curve. | Coronoid Notch |
| The posterior border of the ramus is thickened and extends from the angle of the mandible to a projection. | Condyle |
| Where the temporal bone articulates with the mandible. | Temporomandibular Joint |
| Can be seen when taken a xray | External Oblique line |
| Floater bone, located posterior to the thyroid cartilage. | Hyoid bone |
| The large strap muscle, located on each side of the neck. | Sternocleidomastiod muscle |
| Located anterior midline, inferior to the hyoid bone, which is prominence of the "voice box" or larynx | Thyroid Cartilage |
| Endocrine gland, located inferor to the thyroid cartilage. | Thyroid gland |
| Lines the inner cheek. | buccal mucosa |
| Lines inner portions of the lips. | libial mucosa |
| The smallest, hair-like papillae covering the entire dorsal aspect of the tongue; velvety texture. | filiform lingual papillae |
| Located on the lateral surface of the tongue, vertical ridges. | foliate lingual papillae |
| Small pitlike depression located where the sulcus terminalis points backward toward the pharynx. | Foramen cecum |
| Small, red mushroom shaped dots. | Fungiform lingual papillae |
| Small bulge of tissue at the most anterior portion of the palate, on the lingual side of the central incisors. | incisive papilla |
| Fold of tissue located at the midline between the labial mucosa and the alveolar mucosa. | labial frenum |
| Tissue covered elevation of the bone, just distal to the last tooth of the Maxillary arch. | maxillary tuberosity |
| What is the purpose of Embrasures? | Allow food not to get trapped between teeth.Dissipate and reduce the forces of biting forces by coursing food away from contact area.Self-cleaning due to rounded smooth surfaces. |
| How many dentition periods occer throughout a person's lifetime? | 3 primary, mixed and permanent. |
| Each tooth is surrounded by the bone of the tooth socket called? | Alveolus |
| The anatomical alignment of the teeth and their relationship to the rest of the masticatory system. | Occlusion. |
| Having both primary and permanant dentition teeth is known as. | Mixed Dentition period as known as the ugly duckling stage. |
| How many line angle does the posterior teeth have? | 8- mesiobuccal, distobuccal, mesiolingual, buccolingual, mesio-occusal, disto-occusal, bucco-occusal, linguo-occusal. |
| How many line angle does the anterior teeth have? | 6- mesiolabial, distolabial, mesiolingual, distolingual, linguoincisal, labialincisal. |
| Rules to naming line and point angles. | Mesial always before Distal.Mesial and Distal before other surfaces. Incisal and Occlusal always last.Always drop the "al" from first surface and add an "O". If resulting in double vowel, a hyphen is placed between the words. |
| The firm, irregular ridges of tissue, directly posterior to the incisive papilla. | Palatine Rugae |
| The anterior portion of the palate. | Hard palate |
Created by:
carolammons7
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