Pulp PART 2

36問 • 1年前

問題一覧

The pulp organ is extensively vascular with vessels arising from the ____ to the superior or inferior alveolar arteries. It drain by the same vein.

external carotids

Blood flow is more rapid in the ____ than in most area of the body, and the blood pressure is quite high.

pulp

The walls of the ______ become very thin as they enter the pulp.

pulpal vessels

These nerves enter the tooth through the apical foramen as myelinated nerve bundles.

Nerve Plexus of Raschkow

In addition to the sensory nerves, sympathetic nerve bundles also enter the tooth to innervate blood vessels.

Nerve Plexus of Raschkow

They branch to form the subodontoblastic nerve plexus of Raschkow which is separated from the odontoblasts by a ___

cell-free zone of Weil

miniature contour of the external surface of the tooth.

Pulp cavity

Pulp becomes fibrotic with age, and calcification increases.

true

cutting odontoblastic process more than 1.5 mm peripheral of the pulp at high speed with air-water coolant during tooth preparation: no replacement odontoblast formation: n o reparative dentin

RESPONSE OF PULP TO VERY MILD IRRITATION

IRRITANTS MAY CAUSE DEGENERATION AND DEATH OF THE ODONTOBLASTIC PROCESSES AND ODONTOBLASTS AND THE FORMATION OF REPLACEMENT ODONTOBLASTS, FORMING

irregular or reparative dentin

the ___ within the pulp occurs when caries from an enamel lesion invades the dentin.

first inflammatory reactions

the blood vessels undergo ____, resulting in diminished blood supply to the pulp cells

atherosclerosis

Reduction in pulp size: this occur due to continuous deposition of secondary dentin through the life span of the tooth, and may eventually leads to ____

pulp obliteration

are rare & small in size& found near the apical foramen.

True denticles

consist of irregular dentin containing traces of dentinal tubules and few odontoblasts.

true denticles

invade the pulp tissues causing the pulp to form this irregular type of dentin.

Remnants of the epithelial root sheath

evidence of dystrophic calcification of the pulp tissue. no dentinal tubules.

false denticles

formed of degenerated cells or areas of hemorrhage which act as a centra nidus for calcification.

false denticles

continue to increase in size and in certain cases they fill up the pulp chamber completely.

pulp stones

close proximity of pulp stones to ___ may cause atrophy of it.

blood vessels

Commonly occurs on top of hyaline degeneration in the root canal and not common in the pulp chamber.

Diffuse pulp calcification

irregular calcific deposition in the pulp tissue following the course of blood vessels or collagenous bundle.

Diffuse pulp calcification

opening through the wall of a tooth, produced by pathologic processes or accidentally, thereby exposing the dental pulp.

PULP EXPOSURE

Exposure type determined when the last bit of caries is removed, with sound dentin surrounding the exposure site indicating _____ and thus healthy pulp.

M E C H A N I C A L E X P O S U R E

has the potential to repair itself.

M E C H A N I C A L E X P O S U R E

carious dentin is surrounding the exposure site, indicating __ and thus pulpal involvement

carious exposure

risk of bacterial contamination increases, which can exacerbate pulp inflammatory status and complicate healing

carious exposure

preserve and maintain pulpal health in teeth that have been exposed to trauma, caries, restorative procedures, and anatomic anomalies

VITAL PULP THERAPY

removal of local irritant and placement of protective material directly or indirectly over the pulp

VITAL PULP THERAPY

induce a physical protective barrier over pulp to maintain its vitality and function. to initiate the formation of tertiary reparative dentin or calcific bridge formation

VITAL PULP THERAPY

allows deep caries to remain over the pulp chamber that if removed would expose the pulp and trigger irreversible pulpitis.

INDIRECT PULP CAPPING

uses a layer of protective liner material which promotes remineralization of the softened dentin over the pulp and the laying down of new layers of tertiary dentin in the pulp chamber.

INDIRECT PULP CAPPING

The color of the carious lesion changes from light brown to dark brown, the consistency goes from soft and wet to hard and dry

INDIRECT PULP CAPPING

used when a pulpal exposure occurs, either due to caries extending to the pulp chamber, or accidentally, during caries removal.

DIRECT PULP CAPPING

no recent history of spontaneous pain (i.e. irreversible pulpitis) and a bacteria-tight seal can be applied

DIRECT PULP CAPPING

placement of protective material, followed finally by a dental restoration which gives a bacteria- tight seal to prevent infection.

DIRECT PULP CAPPING

Sporeformers

Tameyra Stefani Al-Suhairy · 44問 · 1年前

Sporeformers