Define the four sections of a tooth What is this opening called and why is it there? Why is it possible to have a toothache? Add the sections of a tooth to your drawing. You will have to label these on your test.
Crown is to root as enamel is to cementum Sections of a tooth Only covers the crown Only covers root Think of the innermost sections as “PD” (pulp and dentin) Crown is to root as enamel is to cementum
Tooth anatomy Crown Cervix Root Apex (apical foramen) Enamel Cementum (4)Parts of a tooth (4) Sections of a tooth Crown Cervix Root Apex (apical foramen) Enamel Cementum Dentin Pulp E P D C Remember: “PD”, “EC” Pulp, Dentin and Enamel, Cementum A tooth gaining its crown
dentition Copy this chart in your notes Primary (deciduous; milk teeth, baby teeth) Mixed Succedaneous (permanent) Born with 44 teeth buds Occurs between 5-12 years old Eruption begins at 5-6 years old Eruption begins @ 6 months Replacement occurs until 17-20 years old when 3rd molars (wisdom teeth) erupt 32 teeth should be “in place” by 12 years old (3rd molars won’t completely erupt until 17-20 years old) All 20 teeth present at 2-3 years old (labeled A-T) Labeled 1-32 Used for mastication, speech, maintain spacing
How old is this child? Deciduous dentition
Deciduous dentition
Mixed Dentition Deciduous Dentition
How old is this child? Mixed dentition
This person is at least how old? Succedaneous dentition
Which dentition consists of 32 teeth? Dentition review Which dentition consists of 32 teeth? Which dentition consists of 20 teeth? Which dentition consists of both deciduous and succedaneous teeth? When do primary teeth begin to erupt? What age does mixed dentition occur? When do permanent teeth begin to erupt? At what age should the 3rd molars erupt? How are deciduous teeth labeled? How are succedaneous teeth labeled? What is the function of primary dentition?
Draw the deciduous and the succedaneous dentitions (p Draw the deciduous and the succedaneous dentitions (p.558- 559) on your paper. Draw side by side like on the precious slide.