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DEN110- Dentition
Question | Answer |
---|---|
Anamoly: | variation of normal |
Dentition: | refers to general arrangement of teeth |
Primary (deciduous, milk) teeth: | baby teeth, lost, 20 teeth (10 per arch), does not have premolars! |
Permanent/secondary dentition: | adult teeth, erupting at age 6, 32 perm. |
Mixed dentition: | both primary and perm., ages 6-13 |
Anterior teeth: | In front of mouth; includes central incisors, lateral incisors, and canines |
Posterior teeth: | teeth in back, includes premolars and molars |
What teeth does deciduous dentition consist of? | primary central incisor, primary lateral incisor, primary canine, primary 1st molar, primary 2nd molar |
Succedaneous teeth: | refers to perm. teeth that replace primary tooth |
What is included in succedaneous teeth? | CI, LI, C, PM |
What are the mouth divisions? | 2 arches, 4 quadrants, 6 sextants |
What are the parts of a tooth? | crown and root |
What is the crown? | covered in enamel, visible in oral cavity |
Anatomical crown: | part covered in enamel |
Clinical crown: | crown visible in mouth |
Root: | pat covered in cementum, embedded in bone |
What are the 4 tissues of the tooth? | 1. enamel 2. dentin 3. cementum 4. pulp |
Dentin: | makes up majority, found in crown and root |
Cementum: | mineralized tissue that covers the root |
Pulp: | nerve of the tooth, found in crown and root |
What are the 3 systems used for counting teeth? | universal, FDI, palmer |
3 hardtissue junctions: | cementoenamel, dentinoenamel, cementodentinal |
Cementoenmel: | "CEJ", cervical line, formed by enamel and cementum |
Dentinoenamel: | "DEJ", where dentin and enamel meet |
Cementodentinal: | "CDJ", marks dentin and cementum meeting, inside tooth root |
Mesial vs. distal: | towards midline vs. further from midline |
Buccal: | outer surface on posterior teeth |
Lingual: | towards tongue, palatal |
Occusal: | biting/top surface on posterior tooth |
Facial: | outer surface on anterior tooth, labial |
Incisal: | "biting" surface on anterior teeth |
Interproximal space: | triangular space between teeth |
Embrasure: | open space between proximal surfaces of 2 teeth where they diverge |
Contact area: | 1 tooth touches another in same arch |
Interdental papillae: | gums between teeth |