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张结 1 1

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STOMATOLOGY

STOMATOLOGY

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    张结 1 1 张结 1 1 Presentation Transcript

    • Stamotology --- Oral medicine Tianjin medical university general hospital ZhangJie ( 张结 ) Tel:13820787738 E-mail:Jane_2410@126.com
    • Oral anatomy Oral molecular biology Introduction Oral physiology Oral medicine Oral surgery Orthodontics Pedodontics Prosthodontics Stamotology
    • Frantal hairline Hyoid bone Posterior border of the mandibular ramus
    • Introduction Stamotology Prothodontics Orthodontics Oral surgery Oral medicine Stamotology of our lecture Dental caries Periodontal disease Oral mucous membrane disease Surgical treatment of the oral cavity diseases The diagnostics, prevention,treatment , of irregularities of the individual teeth, groups of teeth and anomalies of jaws .
    • Outline of oral medicine 0ral medicine 0ral mucous membrane disease Periodontal disease Dental caries Dental anatomy Tooth 0ral mucosa Periodontium
    • Dental anatomy ----Tooth
      • Crown and root
      • Tooth tissues
      • Types of teeth
      • Dentition
      Teeth are very important to our body 1
    • Crown and root Cemental-enamel junction(CEJ)
    •  
    • Difference The anatomic crown The clinic crown The anatomic crown The clinic crown
    •  
    •  
    • Tooth Crown and root Tooth tissues Types of teeth Dentition 1 2 4 3 Four tooth tissues 1.Enamel 2.Dentin hard 3.Cementum 4. Pulp soft
    • 1.Enamel Enamel forms the outer surface of the crown
    • Thickness of enamel Mineralization of enamel Pigmentation Color of teeth
    • The chemical composition
    • 2.Dentin Dentin forms the largest portion of the tooth The color of the dentin is yellow
    • The chemical composition
    • Unlike enamel ,dentine is capable of adding to itself. When it does this, the new dentin is called secondary dentin . Secondary dentin.
    • 3.Cementum
    • Medium to attachment of the tooth to the alveolar bone
    • Cellular: 1/3apical root Acellular: anatomic root
    • The chemical composition
    • 4.Pulp Dentin-reparative system Blood Vessels Nourishing Activate and support Lymph tissue Nerve tissue Filters the fluids within the tooth Fight bacteria Sensory,/responds only to pain Special cells
    • Pulp chamber Pulp canal Root canal Pulp cavity
    • Tooth Crown and root Tooth tissues Types of teeth Dentition
    • Incisors cut incisal edge
    • Canines Holding Grasping
    • Premolars Chew Grind Holding Grasping
    • Molars Chew Grind
    • Anterior teeth Posterior teeth
    • Tooth Crown and root Tooth tissues Types of teeth Dentition
    •  
    • How to identify a deciduous tooth?
    • How to identify a permanent tooth?
    • 1 Dental anatomy ---- Periodontium Oral mucosa Tooth Gingival unit Attachment unit 1.Free gingiva 1.Cementum. 2.Attached gingiva 2.Alveolar bone 3.Alveolar mucosa 3.Periodontal ligament
    • 1.Gingiva unit---free gingiva Free Gingiva is the gum tissue extends from the gingival margin to the base of the gingival sulcus.
    • Gingival sulcus is the space between the gingiva and the tooth. A healthy gingival sulcus will rarely exceed 3mm in depth.
    • 1.Gingiva unit---attached gingiva Attached gingiva extends from the base of this sulcus to the mucogingival junction .
    • 1.Gingiva unit---alveolar mucosa Alveolar mucosa is found apical to the mucogingival junction and is continuous with the rest of the mucous membrane of the cheeks lips and the floor of the mouth .
    • Gingival papilla is the free gingiva located in the triangular interdental space. The apex in the anterior teeth is rather sharp but is more blunt in the posterior teeth.
    • 2.Attachment unit— Cementum Alveolar bone Periodontal ligament Alveolar process is the type of bone that lines the sockets in which the roots of the teeth are held. It is thin and compact with many small openings through which blood vessels ,lymph vessals, and nerves pass. Alveolus is the socket in which the tooth rests.
    • 2.Attachment unit— Cementum Alveolar bone Periodontal ligament Periodontal ligament are the fibers attached to the alveolar bone and to the cementum
      • Horizontal group
      • Oblique group
      • Apical group
      • Alveolar crest group
      • Interradicular group
      Most of the Periodontal ligament are arranged in the following groups: Hammock of tooth tissue bundles Tie push
      • Horizontal group
      • Oblique group
      • Apical group
      • Alveolar crest group
      • Interradicular group
    • 1 Dental anatomy ---- tooth Periodontium Oral mucosa
      • The tongue is covered with stratified squamous epithelium, scattered throughout this epithelium on the upper most surface are four types of papillae:
      • 1.Vallate papillae
      • 2.Fungiform papillae
      • 3.Filiform papillae
      • 4.Foliate papillae
    • 1. Vallate papillae
      • A V-shaped row of circular raised papillae.
      • About 8---12 elevations in the V
      • Location—2/3 of the way back on the tongue
      • They have many tiny taste buds
      ( also named Circumvallate papillae ) cells Nerve endings
    • 2.Fungiform papillae
      • Location -- anterior two thirds of the tongue
      • Tiny ,round, redder, raised spot
      • They have taste buds.
    • 3. Filiform papillae
      • Location- the remainder of the anterior two thirds of the tongue is covered with tiny pointed projections known as filiform papillae.
      • No taste function
    • 4.Foliate papillae
      • Location-- the posterior lateral border of the tongue
      • Roughness and folds tissue.
      • Fewer taste buds
    • The main topics
      • CEJ---?
      • Four tooth tissues
      • Four types of teeth
      • How to identify a deciduous or permanent
      • tooth?
      • Gingival papillae and gingival sulcus
      • Alveolar process and alveolus
      • Five groups of periodontal ligament
      • Four types tongue papillae
    • Take a rest
      • Thank you