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What is the first signs of tooth development found in the anterior mandibular region of the developing embryo?
When the embryo is about 5-6 weeks old
During prenatal tooth development,What is the genetic factor that is most often of concern?
tooth and jaw size
the relationship within the periodontium
periodonal ligaments connect the cementum and alveolar bone
the extension of the bone of the mandible and maxilla that support the teeth in their functional positions in the jaws
embedded portion of the periodontal ligament fibers that connect the cementum of the tooth and bone
tissue that covers the inside of the cheeks, vestibule, lips, soft palate, and ventral surface of the tongue
tough, light pink keratinized tissue that covers the hard palate and includes the attached gingiva
If a pregnant patient has to have dental e-rays taken, the safest time to take the x-ray is after
ninth week of pregnancy
a developmental disturbance that is a genetic factor where there is absence of one or more teeth
permanent teeth that are not permanent molars that begins to form at 12-14 weeks of gestation
makes up the main portion of the tooth structure that extends almost the entire length of the tooth and capable of growht and repair.
the attachment apparatus that retains the tooth in its functional position in the jaw includes
alveolar bone, cementum, and periodontal ligaments
During an examination, how can a dentist determine a patient is in the early stage of periodontal disease?
the alveolar crest is flattening out, increasing the distance between the CEJ and the alveolar crest
what is the difference between secondary dentin and tertiary dentin
Secondary dentin forms after the tooth erupts, Tertiary dentin forms as a response to the trauma
a large, rounded area on the outer surface of the maxillary bones; area of the posterior teeth
The protrusion of mandible occurs when the internal/external pterygoid muscles
on both sides contract together
a spasm of the muscles of mastication; most common cause of restricted mandibular movement;
Jaws that "goes out" or "gets stuck"
a Stone that develop in the salivary duct that prevents saliva from flowing into the mouth
major vein corresponds to common carotid artery and empties blood from upper portion of the body
What is the rectangular area between the two ridges running under the nose to the midline of th upper lip?
a white ridge of raised tissue on the buccal mucosa, extending horizontally at the level where the maxillary/mandibular teeth come together
_______ frenum passes from the floor of the mouth to the midline of the venrral border of the tongue
unattached gingiva consists of the tissues from the top of the gingival margin to the
base of the gingival sulcus
Opening of the Stensen's duct of parotid gland located in buccal mucosa of the cheek?
What is unattached gingiva
the tissue that surrounds the teeth; it is about 1mm wide and is also called marginal gingiva
the space between the gum and the teeth before the bone starts, where popcorn husks become lodged
what is the correct term for the gum tissue that normally extends between the teeth?
both marginal gingiva or Interdental gingiva
the irregular ridges of the masticatory mucosa that are located behind the maxillary central incisors
what is a soft palate
the movable posterior third of the palate, posterior to the hard palate; sorpported by fauces and ends with the uvula
What serve as openings for the submandibular salivary glands?
Two small papillae are located on either side of the lingual frenum under the tongue
part of the head that is visible from a frontal view, anterior to the ears, and lies between the hairline and the chin
When does permanent dentition period begin?
At about 12 years of age when the last primary tooth is lost
What are the surfaces of the tooth?
mesial, distal, facial, lingual and masticatory
(occlusal or incisal)
The area where the mesial/distal surfaces of the tooth touch the adjacent tooth in the arch
the relationship between the maxillary/mandibular teeth when the jaww are in full closed position.
the jaw postion that produces maximal stable contact between th occluding surfaces of the max. and mand. teeth
the key to Angle's classification system for occlusion and malocclusion
the permanent max first molar
Palmer Notation System (PNS)
Each of the 4 quadrant, and the 2nnd digit indicates the tooth within the quadrant, with numbering from the midline to the posterior.
which dentition between 6-12 years of age exhibits both primary and permanent teeth in the oral cavity at the same time?
Each quad of the permanent dentition contains ______ teeth; Whereas each quad of the primary dentition contains ___________.
If the dentition is divided into sextants instead of quads, how many sextants are there in each arch?
Which type of tooth is not in the primary dentition but found only in the permanent dentition?
How is the anatomic features of the teeth helpful?
To maintain position in dental arch and protect tissues during chewing.
What is the importance of correct contact between adjacent teeth?
prevention of trapped food in between teeth, stabilize dental arch, and protect interproximal gingival tissue from trauma during chewing.
What is the division of the crown of the tooth that is divided crosswide with division of being parallel to occlusal/incisal surface of the tooth?
Occlusal third, middle third and cervical third
In the Universal/National System, the primary teeth are identified using _________ and permanent teeth are identified using _________?
Letters A-T and # 1-32
If a dentist us the ISO numbering system and charts # 11, 12, 53, 54 and 18 teeth as being present in the patient's mouth, aproximately how old is the patient?
8-9 years of age
The size, shape, color and position of ___________ teeth determines how a person look.
The rounded enamel extensions on the incisal ridge of newly erupted central/ lateral incisors are called ____________?
Which teeth varies in form more than any other teeth in the mouth?
3rd molars and maxillary lateral incisors
Which teeth is the longest in the permanent dentition and ar know as the cornerstone of the dental arches?
what is a pit?
A pinpoint depression in the occlusal surface of a posterior tooth where two or more grooves meet.
How are the maxillary 1st and 2nd premolar different?
2nd max premolar has only one root and there fore only one root canal.
Which teeth often appear as a developmental anomaly, differeing in size, shape, contour and relative position?
Max. and Mand. 3rd molars
What is the raised border on the mesial and distal surfaces of the lingual surface of anterior teeth?
What is a common anomaly of the maxillary lateral incisors that is characterized by the tooth being abnormally pointed or tapered in shape?
The bony ridge over the labial portion of the rootes of the canines that help to form the facial contours.
The area where the cusp ridges converge at a central point on the occlusal surface of posteriior teeth
The 1st premolar is posterior to the __ whle the 2nd premolar is anterior to the ___?
canine and first molar
What is the difference between maxillary 1st and 2nd premolars?
The cusps of 2nd premolars are not as sharp as the 1st premolars.
the root of the mandibular 2nd premolar is ___________ than the root of the maxillary premolars.
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