Back to AI Flashcard MakerAnatomy and Physiology /Chapter 10: Landmarks Of The Face Part 1
Chapter 10: Landmarks Of The Face Part 1
This deck covers key concepts and terminology related to the anatomical features of the face, focusing on dental structures such as enamel, dentin, pulp, and the periodontium.
Anatomical crown
Portion of tooth covered by enamel
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Key Terms
Term
Definition
Anatomical crown
Portion of tooth covered by enamel
Clinical crown
Portion of tooth that is visible in the mouth
Enamel
the hardest material in the body
- formed by ameloblasts
What is composed of calcified enamel prisms or enamel rods
Enamel
Hydroxyapatite crystals
Found in enamel, consists primarily of calcium
Striae of retzuis
Incremental growth lines or bands seen in tooth enamel
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| Term | Definition |
|---|---|
Anatomical crown | Portion of tooth covered by enamel |
Clinical crown | Portion of tooth that is visible in the mouth |
Enamel |
- formed by ameloblasts |
What is composed of calcified enamel prisms or enamel rods | Enamel |
Hydroxyapatite crystals | Found in enamel, consists primarily of calcium |
Striae of retzuis | Incremental growth lines or bands seen in tooth enamel |
Hypocalcified or uncalcified ends of enamel rods that extend from DEJ into enamel | Enamel tufts |
Cracks or faults found microscopically in enamel which extend from the enamel surface toward DEJ | Enamel Lamellae |
Enamel spindles | End of ondontoblast fiber extend slightly into enamel |
Hunter-Schreger Bands | Alternating dark and light bands in enamel. Caused by intertwining or changing direction of prisms |
Dentin |
- formed by ondontoblasts |
Dentinal tubules | Canals in dentin |
Dentinal fibre | Transmits pain stimuli |
Primary dentin | Formed before eruption of tooth |
Secondary dentin | Forms after eruption of tooth |
Repetitive dentin or tertiary dentin | Formed in response to irritation -ex. Cavities, erosion, dental treatment |
Pulp | Tooth receives nourishment from pulp -formed by fibroblasts |
Radicular pulp | Root pulp |
Apical foramen | Opening at the apex for continuation of the nerve |
Cementum | Connective tissue / anchors tooth in bony socket Formed by cementoblasts |
The periodontium is divided into 2 units which are? | Attachment apparatus and the gingival units |
Attached apparatus consists of ? | Cementum, alveolar process, periodontal ligaments |
The attachment apparatus | Supports maintains and retains the tooth in functional position |
The extension of bone from mandible and maxilla | Alveolar process |
Osteoblasts | Form bone |
Is the mandible or maxilla more dense | The mandible is more dense |
Cortical plate of the alveolar process | Is a dense outer covering of the spongy bone and is the central part of the alveolar process |
Alveolar crest | Highest point of the alveolar ridge
It is fused with the cortical plate |
Alveolar socket | Cavity with the alveolar process, surrounds the root of the tooth |
The bony socket that separates one socket from another is the | Interdental septum |
The bone that separates the roots of multi-rooted tooth | Interradicular septum |
The lamina dura is also known as | The cribriform plate |
The lamina dura is what? | A thin compact bone that lines the alveolar socket |
Periodontal ligaments are what | Dense connective tissue that connect cementum with alveolar bone of the socket wall |
Sharpeys fibres | Attachment/embedded points in cementum and bone that are mineralized |