Questions and Answers
What is the total number of cingula in each dentition _______
12
Name the anterior teeth that have a cingulum offset from the center.
Mandibular lateral, Maxillary central incisor
Which anterior teeth have a cingulum located off center to the distal?
Mandibular canine, Mandibular lateral incisor, Maxillary central incisor
Name the anterior teeth with cingulum center to the cervical third.
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What tooth is most likely to be if it has a cingulum that is offset from center?
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What are three characteristics common to all mandibular anterior teeth?
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The mandibular central incisor only occludes with one other tooth.
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The canines for both mandibular and maxillary are the only teeth with labial ridge.
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The CEJ curvatures are greater on the distal than the mesial for mandibular central incisor and canine.
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The mandibular lateral incisor crown tips slightly to the mesial relative to the root.
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Which characteristic is common to all mandibular anterior teeth?
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Which line angle is least square in the mandibular lateral incisor?
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What tooth has a pulp chamber that is least like the others?
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Maxillary canines erupt between the ages of ___ - ___ and mandibular canines erupt between ___ - ___.
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Which cusp ridge is the longest on the permanent canines?
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Both the maxillary central and lateral incisors have a lingual cervical line that is positioned more apically than the facial cervical line.
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Permanent maxillary and mandibular premolars are considered nonsuccedaneous teeth.
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Which of the following traits distinguishes maxillary canines compared to mandibular canines? (Select all that apply)
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Girl's teeth usually erupt before boy's teeth of the same age.
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Maxillary teeth usually erupt before mandibular teeth.
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The teeth of slender children usually erupt before the teeth of stocky children.
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The crowns of all 20 teeth for primary dentition begin to calcify between ___ to ___ months in utero.
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The crowns of all 20 teeth for primary dentition take ___ months for completion.
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The root of a deciduous tooth is completely formed in just about ___ after eruption of that tooth into the mouth.
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As soon as a child gets his/her _______ he/she is considered to be in the mixed dentition.
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The earliest indication of mixed dentition consists of primary dentition and the permanent first molars.
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There are three periods of dentition in man.
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Permanent teeth do not undergo small movements after reaching full occlusion.
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Which teeth have probably not been traumatized in a 15-month-old child? (Select all that apply)
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What is the most likely age of a patient with an eruption cyst in the place of the mandibular second molar?
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The mandibular central incisors erupted at the age of ____ to ____ years.
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The maxillary central incisors erupted at the age of ____ to ____ years.
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The first permanent molars for both mandibular and maxillary erupted at ____ to ____ years.
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The mandibular second molar erupted at the age of ____ to ____ years.
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At 9 years of age how many primary teeth are present in the mouth?
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A 1-year-old child is expected to have erupted which of the following primary maxillary and mandibular teeth? (Select all that apply)
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Study Notes
Anterior Teeth Overview
- Maxillary and mandibular anterior teeth total 12.
- Each dentition features 6 maxillary and 6 mandibular anterior teeth.
Cingulum Characteristics
- Each dentition has multiple cingula, with specific positioning on certain teeth.
- Cingula can be offset from the center on specific anterior teeth.
Anterior Teeth with Offset Cingulum
- Mandibular lateral incisor and maxillary central incisor have cingula offset to the distal side.
Anterior Teeth with Centered Cingulum
- Maxillary lateral incisor, maxillary canine, and mandibular central incisor have centered cingula.
Mandibular Anterior Teeth Features
- Mandibular anterior teeth exhibit indistinct cingula with smooth lingual anatomy, lingual incisal edges, and continuous convex facial surfaces.
Mandibular Central Incisor Traits
- Only occludes with one tooth (maxillary central incisor).
- Alveolar process is thinnest facially.
Unique Canine Features
- Canines have a labial ridge; they are the only teeth featuring functional lingual surfaces instead of occlusal surfaces.
- Maxillary canines make contact with both anterior and posterior segments in maximum intercuspation.
Crown Differences between Mandibular and Maxillary Canines
- Mandibular canine has a straighter mesial border and a narrower mesiodistal dimension.
- The cusp tip of the mandibular canine is displaced lingually compared to maxillary canine.
Eruption Ages for Canines
- Maxillary canines erupt between ages 11-12, while mandibular canines erupt between ages 9-10.
Tooth Outline Shapes
- Anterior teeth have a triangular outline from mesial/distal views but have a trapezoidal outline from labial/lingual views.
- Maxillary and mandibular posterior teeth have distinct shapes (rhomboidal for mandibular, trapezoidal for maxillary).
Pulp Chamber Characteristics
- The pulp chamber of maxillary central incisors is wide mesiodistally and narrows with age due to secondary dentin formation.
Distinguishing Maxillary Canine
- The maxillary canine has a more pronounced cingulum and is wider mesiodistally than the mandibular counterpart.
Primary Teeth Eruption Timeline
- Primary teeth begin calcifying in utero and typically take 10 months for completion; roots form in about one year post-eruption.
General Eruption Rules
- Girls' teeth usually erupt before boys', with mandibular teeth generally emerging before maxillary teeth.
- Slender children's teeth tend to erupt earlier than those of stockier children.
Mixed Dentition Stage
- Mixed dentition begins with the eruption of permanent first molars and ends with the loss of the last primary tooth, typically a maxillary canine.### Permanent Dentition Overview
- Permanent dentition begins around 12 years of age and continues through adulthood.
- Small tooth movements, such as mesial drift and root apex cementum deposition, occur for wear compensation after full occlusion.
Primary Teeth Development
- At 15 months, a child typically has 12 erupted primary teeth: four central incisors, four lateral incisors, and four first molars.
- Trauma in young children often affects primary teeth present at 15 months, specifically excluding primary lateral incisors and canines.
Eruption Patterns
- Rule of Four: Simplifies understanding of dental eruption. Implies eruption of four teeth every four months, starting with four teeth at age 7 months.
- Sequence of permanent dentition eruption includes central incisors, lateral incisors, first molars, canines, and second molars.
Age-Specific Eruptions
- Mandibular central incisors erupt between 6-7 years; lateral incisors from 7-8 years.
- Maxillary central incisors erupt from 7-8 years; lateral incisors from 8-9 years.
- Maxillary canines erupt from 9-10 years; mandibular canines from 10-12 years.
- Mandibular first premoloar erupts from 10-11 years; second premolar from 11-12 years. Maxillary first premolar erupts from 10-11 years; second premolar from 10-12 years.
- First permanent molars for both arches erupt at 6-7 years.
- Mandibular second molars erupt from 11-13 years; third molars from 17-21 years. Maxillary second molars erupt from 12-13 years; third molars from 17-21 years.
Primary Teeth Scenario
- By age 9, a child typically has lost all primary teeth, resulting in zero primary teeth present.
- A 1-year-old child is expected to have erupted primary maxillary and mandibular teeth, including central and lateral incisors, but not canines, first molars, or second molars.
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Description
Test your knowledge of dental anatomy focusing on anterior teeth with these flashcards. Each card covers different aspects of cingula and incisor characteristics. Perfect for dental students and professionals looking to refresh their knowledge.
