Stamotology

---Oral medicine

Tianjin medical university general hospital ZhangJie (张结 ) Tel:13820787738 E-mail:Jane_2410@126.com

Oral molecular biology

IntroductionIntroduction

Oral anatomy

Oral physiology

Oral medicine

Oral surgery

Orthodontics

Pedodontics

Prosthodontics

Stamotology

Frantal hairlineFrantal hairline

Hyoid bone Hyoid bone

Posterior border of Posterior border of the mandibular the mandibular ramus ramus

Introduction Stamotology

ProthodonticsOrthodontics Oral surgeryOral medicine

Dental caries Periodontal diseaseOral 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.

Stamotology of our lecture

0ral medicine

Outline of oral medicine Outline of oral medicine

0ral mucous membrane disease

Periodontal disease

Dental caries

Dental anatomy

Tooth

0ral mucosa

Periodontium

Teeth are very important to our body

Dental anatomy ----Tooth Dental anatomy ----Tooth Crown and rootTooth tissuesTypes of teethDentition

1

Crown and root

Cemental-enamel junction(CEJ)

DifferenceDifference

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.Enamel2.Dentin hard3.Cementum4.Pulp soft

1.Enamel1.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 toothThe 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 rootAcellular: anatomic root

The chemical composition

4.Pulp

Dentin-reparative system

BloodVessels

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 canalRoot canal

Pulp cavity

Tooth Crown and root Tooth tissues Types of teeth Dentition

IncisorsIncisors

cutcut

incisal incisal edgeedge

CaninesCanines

HoldingHoldingGraspingGrasping

PremolarsPremolars

ChewChew GrindGrind

HoldingHoldingGraspinGraspingg

Molars Molars

ChewChew GrindGrind

Anterior teeth Posterior teeth 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 ----Dental anatomy ---- PeriodontiumPeriodontium Oral Oral mucosa mucosa

Gingival unit Attachment unit

1.Free gingiva 1.Cementum.

2.Attached gingiva 2.Alveolar bone

3.Alveolar mucosa 3.Periodontal ligament

ToothTooth

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 mucosaAlveolar 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 ligamentAlveolar 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 groupOblique groupApical groupAlveolar crest groupInterradicular group

Hammock of tooth tissue bundles

Tie

push

Most of the Periodontal ligament are arranged in the following groups:

Horizontal groupOblique groupApical groupAlveolar crest groupInterradicular group

1 Dental anatomy ----Dental anatomy ----toothtooth PeriodontiumPeriodontium Oral Oral mucosa 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 VLocation—2/3 of the way back on the tongueThey 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 spotThey 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 papillae4.Foliate papillaeLocation-- the posterior lateral

border of the tongue Roughness and folds tissue.Fewer taste buds

The main topics CEJ---?Four tooth tissuesFour types of teethHow to identify a deciduous or

permanent tooth?Gingival papillae and gingival

sulcusAlveolar process and alveolusFive groups of periodontal ligamentFour types tongue papillae

Take a restTake a restThank you