Questions and Answers
What term describes the shape, or form, of the teeth?
Morphology
List six clinical situations in which a thorough understanding of tooth morphology is useful.
Mounting dental radiographs, assisting in charting a mouth with missing teeth, selecting temporary crowns, forming matrix bands, selecting rubber dam clamps, and fabricating temporary crowns and bridges.
What do the permanent anterior teeth include?
Two central incisors, two lateral incisors, and two canines.
What term describes the permanent teeth that replace the primary teeth?
Signup and view all the answers
What term describes the rounded, raised area on the cervical third of the lingual surface of all anterior teeth?
Signup and view all the answers
What term describes the rounded, raised borders on the mesial and distal lingual surfaces of anterior teeth?
Signup and view all the answers
What term describes the wide, shallow depression on the lingual surface of some anterior teeth?
Signup and view all the answers
How many permanent incisors are in the mouth?
Signup and view all the answers
List the characteristics of the maxillary central incisors (#8 and #9).
Signup and view all the answers
When does an incisal edge develop?
Signup and view all the answers
What term describes the three rounded enamel extensions on the incisal ridge of newly erupted incisors but disappears as a result of wear?
Signup and view all the answers
What term describes the wearing down of a tooth surface as a result of chewing?
Signup and view all the answers
List the characteristics of the maxillary lateral incisors (#7 and #10).
Signup and view all the answers
What are peg shaped laterals?
Signup and view all the answers
What are the general characteristics of the mandibular incisors?
Signup and view all the answers
Why is there an increased buildup of plaque, calculus, and stain on the lingual surface of the mandibular incisors?
Signup and view all the answers
List the characteristics of the mandibular central incisors (#24 and #25).
Signup and view all the answers
What term describes the developmental horizontal lines on anterior teeth?
Signup and view all the answers
List the characteristics of the mandibular lateral incisors (#23 and #26).
Signup and view all the answers
What are the general characteristics of the permanent canines?
Signup and view all the answers
What term describes the bony vertical ridge over the root of the canines?
Signup and view all the answers
What are some other names for canines?
Signup and view all the answers
Study Notes
Tooth Morphology Overview
- Morphology refers to the shape and form of teeth, critical for various dental practices.
Clinical Applications of Tooth Morphology
- Essential for mounting dental radiographs.
- Aids in charting missing teeth and those that have drifted.
- Important for selecting temporary crowns and forming matrix bands.
- Useful in choosing rubber dam clamps.
- Involved in fabricating temporary crowns and bridges.
Permanent Anterior Teeth
- Comprises two central incisors, two lateral incisors, and two canines.
Succedaneous Teeth
- Refers to permanent teeth that replace primary teeth.
Key Anatomical Features
- Cingulum: Rounded area on the cervical third of the lingual surface of anterior teeth.
- Marginal Ridges: Rounded borders on mesial and distal lingual surfaces of anterior teeth.
- Fossa: Wide, shallow depression found on the lingual surface of some anterior teeth.
Incisor Characteristics
- Eight permanent incisors are present in the mouth.
- Maxillary central incisors (#8 and #9) are larger than mandibular counterparts; prominent lingual features and shorter roots.
- Maxillary lateral incisors (#7 and #10) are smaller than central incisors, single root that often curves, and can be congenitally missing.
Developmental Aspects
- Incisal edge develops as a result of occlusal wear.
- Mamelons are rounded enamel extensions on newly erupted incisors that disappear with wear.
- Attrition is the wear down of tooth surfaces due to chewing.
Mandibular Incisor Features
- Mandibular incisors are the smallest and most symmetric teeth; centrals and laterals are similar in appearance.
- Increased plaque and stain on their lingual surfaces due to saliva release from salivary glands.
- Mandibular central incisors (#24 and #25) feature a centered cingulum, subtle fossa, and marginal ridges.
- Mandibular lateral incisors (#23 and #26) are larger than centrals, with a mesial longer than distal side causing a downward slope.
Permanent Canines
- Considered the most stable teeth; last to be lost and are referred to as the "cornerstone" of dental arches.
- Deeper yellow color compared to incisors; characterized by one root and one cusp.
Additional Terms
- Canine Eminence: Bony vertical ridge over the root of canines.
- Canines are also known as "eyeteeth" or cuspids.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz focuses on the essential concepts of tooth morphology, including terminology and its practical applications in clinical situations. Perfect for dental students and professionals seeking to enhance their understanding of tooth forms and functions.