.
6 weeks
10 weeks
18 weeks
16 weeks
Direct neural stimulation
Hydro dynamic theory
Transduction
None
Interglobular dentin
Dead tracts
Irregular dentin
None
Secondary dentin
Reparative dentin
Sclerotic dentin
Eburnated dentin
24 hrs
1 week
15 days
1 month
Stratum spinosum
Stratum granulosum
Stratum basale
Stratum corneum
Circumvallate
Filiform
Foliate
Fungiform
Junctional epithelium
Gingival epithelium
Reducedenamel epithelium
All
Stratum granulosum
Stratum germinativum
Stratum spinosum
None
Type 1 coolagen
Type 2 collagen
Type 3 collagen
None
Hard palate
Tongue
Attached gingiva
Floor of mouth
Numerous rete pegs
Absence of rete pegs
Few rete pegs
None
Alkaline phosphatase
Acid phosphatase
Osteopontin synthase
Integrin
Fungiform
Filiform
Circumvallate
Foliate
Basement membrane
Basal lamina and hemidesmosome
Enamel cuticle
None
Sensory in nature
Respond to hot and cold
Carry pain sensation
Associated with blood vessels and are sympathetic in nature
Inferior meatus
Middle meatus
Lateral wall
None
Middle
Coronal
Apical
Inter radicular
Maxillary division of trigeminal nerve
Mandibular division of trigeminal
Both
None
Hydrodynamic theory
Clone theory
Periodontal ligament traction theory
Vascular theory