Dental pain anatomy

  • How does dental pain occur?

    Toothache occurs when the innermost layer of the tooth (dental pulp) becomes inflamed.
    The pulp is made up of sensitive nerves and blood vessels.
    Dental pulp can become inflamed as a result of: tooth decay – this leads to holes (cavities) forming in the hard surface of the tooth..

  • What is the anatomical basis of dental pain?

    The pain pathway is mostly transmitted via myelinated Aδ (sharp or stabbing pain) and unmyelinated C nerve fibers (slow, dull, aching, or burning pain) of the trigeminal nerve, which supplies sensation to the teeth and gums via many divisions and branches..

  • What is the concept of dental pain?

    A toothache or tooth pain is caused when the nerve in the root of a tooth or surrounding a tooth is irritated.
    Dental (tooth) infection, decay, injury, or loss of a tooth are the most common causes of dental pain.
    Pain may also occur after an extraction (when a tooth is pulled out)..

  • What is the mechanism of dental pain?

    Dental pain arises from exposed dentin following bacterial, chemical, or mechanical erosion of enamel and/or recession of gingival.
    Thus, patent dentinal tubules represent the first structure involved in dentin sensitivity..

  • What is the physiology of dental pain?

    The sensory system of the pulp appears to be well suited for signaling potential damage to the tooth.
    The tooth is innervated by a large number of A (myelinated) and C (unmyelinated) nerve fibers.
    These include both sensory afferent fibers and sympathetic fibers that modulate pulpal blood flow..

  • What is the structure of tooth pain?

    The pulp tissue maintains the internal 'vitality' of the tooth.
    The presence of only pain receptive nerve fibres within the dental pulp mean that whatever the stimulus, hot, cold or touch for instance, the pulp tissue will only be able to respond with a 'pain' response..

  • Dental pain is somatic deep of visceral type and it is manifested diffuse and depressive, increases when being caused, hypermodulated and it has relationship with present pathology.
  • The pulp tissue maintains the internal 'vitality' of the tooth.
    The presence of only pain receptive nerve fibres within the dental pulp mean that whatever the stimulus, hot, cold or touch for instance, the pulp tissue will only be able to respond with a 'pain' response.
In health, teeth only perceive pain due to dentine sensitivity to cold, sweet or physical stimulus. Dental pulpitis may be due to infection from dental caries close to the pulp (Figure 2, Figure 3), or by inflammation from chemical or thermal insult subsequent to dental treatment.
The specialized anatomy of the pulp-dentin complex and the dense, predominantly nociceptive pulpal innervation from the trigeminal nerve explain the variety of pain sensations from this organ. Brief, sharp pain is typical of A-fiber-mediated pain, while long-lasting, dull/aching pain indicates C-fiber involvement.

What causes severe dental pain and swelling?

A 40 year old woman presents complaining of severe dental pain and swelling, and is unable to contact her dentist

She reports that the pain started three days ago and has increased in intensity since, with her face becoming swollen in the last 24 hours

Dental pain occurs as a result of inflammation of the pulp (pulpitis) (see figure ⇓ )

What is dental pain?

The term dental pain refers to dentinal pain associated with sensory activation of the dentine as a result of caries lesion or trauma and pulpal pain associated usually with inflammatory reaction of the pulp tissue

The mechanism of pain generation and transfer is complex and in interactions with the central mechanism of pain and sensation

What is the prevalence of dental pain?

The prevalence of dental pain and its characteristics were recorded using standard measures of pain (WHO criteria)

In a study of 1,052 individuals the prevalence of reported toothache in schoolchildren in the last six months was 33

6% (31 1–36 8, 95% CI)
As the dental pulp is a highly vascularised and innervated region of the tooth, it is the site of origin for most pain-related sensations. The dental pulp nerve is innervated by one of the trigeminal nerves, otherwise known as the fifth cranial nerve.The temporomandibular (tem-puh-roe-man-DIB-u-lur) joint (TMJ) acts like a sliding hinge, connecting your jawbone to your skull. You have one joint on each side of your jaw. TMJ disorders — a type of temporomandibular disorder or TMD — can cause pain in your jaw joint and in the muscles that control jaw movement.Within the tooth is a pulpal system made of nerves and blood vessels. This is located below the exposed part of the tooth, and is responsible for supplying sensation and nutrition to the tooth from the body. When cavities are formed, the holes grow bigger as more acid breaks down the enamel of the tooth.Dental pain can be practically grouped into five progressive pain categories. A short pain history and examination is required to categorise this pain. Dental anatomy, decay, and pain. The crown of a tooth is made up of three basic layers; enamel (A), dentine (B), and pulp (C).

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