Please enable JavaScript.
Coggle requires JavaScript to display documents.
Tooth and Its Supporting Tissue - Coggle Diagram
Tooth and Its Supporting Tissue
Describe the microscopic structure of dental tissue [Email, Dentin, Pulp]
Enamel:
Composition: Hard, calcified tissue covering the tooth's crown.
Cellular Aspect: Lacks living cells.
Function: Provides protection to the underlying dentin.
Dentin:
Location: Lies beneath the enamel and cementum.
Microscopic Features: Contains tiny tubules.
Function: Transmit stimuli such as heat, cold, or acidic foods to the nerves and cells within the tooth, causing sensitivity when the protective enamel layer is compromised.
Pulp:
Composition: Soft tissue at the center of the tooth.
Components: Contains nerves, blood vessels, and connective tissue.
Function: Supplies nutrients, houses nerves, and provides sensory functions for the tooth.
Describe the microscopic structure of the tooth supporting tissue (periodontal ligament, cementum, gingiva and alveolar bone)
Periodontal Ligament (PDL)
Cementum
Gingival Tissue
Alveolar Bone
Explain the composition, properties and function of dental tissue [Email, Dentin, Pulp]
Enamel:
Composition: Made of calcium and phosphate crystals.
Properties: Extremely hard, lacks cells, shields from damage.
Function: Protects tooth, aids biting and chewing.
Dentin:
Composition: Contains crystals, collagen, and water.
Properties: Less hard than enamel, sensitive to stimuli.
Function: Provides support, transmits nerve signals.
Pulp:
Composition: Holds tissues, nerves, blood vessels.
Properties: Soft, vascular, capable of repair.
Function: Provides nourishment, senses stimuli, initiates repair, and houses immune cells for defense.
Explain the composition, properties and functions of the tooth supporting tissue!
Cementum
Periodontal ligament (PDL)
Alveolar bone
Gingival tissue
Describe the structure of the vascular and lymphatic networks that can be found in the dental tissue and the supporting tissue for teeth
Vascular Supply in Dental Tissues:
Source: Primarily through the pulp tissue, containing blood vessels, nerves, and connective tissue.
Pathway: Arteries and veins enter via the root tip's apical foramen, traveling through the root canal to nourish the tooth.
Lymphatic System in Dental Tissues:
Nature: Less studied compared to other body parts.
Presence: Evidence suggests the existence of lymphatic vessels in oral and dental tissues, contributing to immune functions via lymph transport and white blood cells.
Do you think that all dental tissue is a living tissue that can always grow and develop? Explain the reason!
Living Tissues in Dental Tissue:
Living: Dentin and pulp are living tissues due to containing living cells responsible for growth and repair.
Enamel: Non-living as it lacks living cells like ameloblasts. It's primarily mineral crystals, unable to repair damage such as cavities. Cavities in enamel cannot be self-repaired as it lacks living cells, unlike dentin which contains living cells capable of repair.
Oral Microbiome and Dental Tissue:
Microbiome Impact: Bacteria, viruses, and fungi in the mouth influence biofilm formation and can be affected by factors like smoking and diet, leading to oral diseases.
Dental Tissues: Enamel, dentin, cementum, pulp, and periodontium support teeth.
Diseases Caused: Periodontitis and gingivitis result from bacterial action causing inflammation and tissue breakdown.
Saliva's Role:
Protection: Saliva neutralizes acids, remineralizes enamel, and contains enzymes for dental tissue health.
Factors Affecting Saliva: Medications, health conditions, and habits impact saliva composition and flow rate.
Saliva Flow Rate Effects:
Higher Flow: Aids in neutralizing acids, maintaining dental tissue health.
Lower Flow: Increases risks of decay and gum disease by reducing protective functions, impacting dental tissue and supporting structures.