Endo Oral Tissues

Main function of the pulp

pulp participates in the development of dentin and then dentin formation leads to enamel formation and ultimately formation of a tooth

pulp supplying nutrients

pulpal odontoblasts form dentin in response to injury and pulp has the ability to elicit an immune response

pulpal nerves can respond to stimuli

What is pulp derived from

What do NCC arise from?

what forms the dental lamina

In the cap stage the ___ cells are cuboidal and the ___ cells are elongated

What forms the pulp?

The dental sac becomes what

The cervical loop is what?

the cervical loop proliferates and forms what?

Formation of ameloblasts and then odontoblasts occurs when?

What stage do odontoblasts lay down dentin

Root sheath breaks apart and allows mesenchymal cells of the dental sac to contact dentin and these cells form what

During formation of the root sheath and before dentin formation, breaks can develop in the root sheath, resulting in a direct communication between the dental sac/PDL and pulp forming what

Dentin that forms during tooth development

dentin formed normally after root is fully developed

the first dentin formed

the unmineralized organic matrix of dentin between the odontoblastic layer and the mineralized dentin

Dentin formed in response to injury

tubular dentin formed by the original odontoblasts

atubular dentin formed by NEW odontoblasts

T/F: dentin is slightly tapered, wider potation toward the pulp
True False

______ dentin the tubules have a gentle S shape as they extend from the DEJ to the pulp

What occurs to the dental tubules near the DEJ

dentin lining the tubules that is highly mineralized

dentin between the rings of PT dentin and consists of the bulk of dentin

Dentinal sclerosis causes a ___ in dentin permeability

The organic matrix remains unmineralized, because the mineralizing globules fail to coalesce

Dentinal fluid resembles what

The size and density of dentin tubules ___ as the it gets closer to the pulp

microcrystalline grinding debri covers the dentin and clogs the tubules and helps prevent bacterial penetration

Order of the morphologic zones of the pulp from bottom up (6)

synthesize the dentinal matrix and control mineralization of dentin

What are the three parts of the odontoblast

Where do the preodontoblasts (stem cells) reside

most common and numerous cells of the coronal pulp

what type of collagen do fibroblasts synthesize

Most prominent immune cell in the pulp

What cells are seldom found in normal pulp but more so in chronically inflamed pulp

What type of collagen is found in dentin? What types are found in pulp and which of those is the most abundant

Type 1 collagen in dentin is synthesize by what? (2)

three types of pulp stones

excessive deposition of mineralized tissue on the dentin walls

what plays an important role in regulating pulp circulation

Assist in the removal of inflammatory exudate and is located in the coronal region

nerve fibers that transmit sharp, fast more localized pain (temp and touch too)

where are delta A fibers located

nerve fibers that are responsible for burning, aching and dull, diffuse pain that are located throughout the pulp

Nerve bundles that branch and form the subodontoblastic plexus or the

Mandibular premolars – can receive sensory branches from the ______ nerve of V3

Mandibular molars – can receive sensory innervation from the ____ and _____ _____ nerves

When you stimulate the DEJ and the patient feels it despite no nerves existing in the out third of the dentin toward the DEJ this is due to

Very little amount of nerves exist in the _____ and extend a short length in dentin

what is the role of the cementum?