The Dental Pulp

Functions of the Dental Pulp

1. Inductive 2. Formative3. Protective4. Sensory

1. Odontoblastic Layer2. Cell Free Zone3. Cell Rich Zone4. Pulp Core

A. OdontoblastsB. “Reticular Fibers”C. CapillariesD. NervesE. Mesenchymal CellsF. DentinG. Subodontic Nerve Plexus

Zones of the Pulp

Avery: Oral Histology

Nerves in Teeth

1. AMechanoreceptors

2. AThermoreceptorsNociceptors

3. C fibersNociceptors

Hydrodynamic Mechanism of Dental Pain

A. OdontoblastB. PredentinC. DentinD. Odontoblastic ProcessE. Subodontoblastic Nerve PlexusF. A FiberG. Axon Terminal in Tubule

1. Secondary DentinReduction is size

2. Tertiary DentinReparative dentinReactive dentin

3. CalcificationPulp stones

Age Changes in the Dental Pulp

Response to Injury

Avery: Oral Histology

Direct Pulp Capping

Avery: Oral Histology

Internal Resorption

Hyperplastic Pulpitis“Pulp Polyp”