“The mouth is the gateway to the rest of the body, a mirror of our overall well-being.”


Download 12.91 Kb.
bet3/5
Sana15.11.2023
Hajmi12.91 Kb.
#1773822
1   2   3   4   5
Bog'liq
Chapter 013

Areas for Development of Caries

  • Pit and fissure caries occurs primarily on the occlusal surfaces and buccal and lingual grooves of posterior teeth, as well as in lingual pits of the maxillary incisors.
  • Smooth surface caries occurs on intact enamel other than pits and fissures.
  • Root surface caries occurs on any surface of the root.
  • Secondary, or recurrent, caries occurs on the tooth surrounding a restoration.

Stages of Caries Development

  • It usually takes a period of time, from months to years, for a carious lesion to develop.
  • It is an ongoing process, characterized by alternating periods of demineralization and remineralization.
    • Demineralization is the dissolving of the calcium and phosphate from the hydroxyapatite crystals.
    • Remineralization is the calcium and phosphate being redeposited in previously demineralized areas.
  • It is possible to have the processes of demineralization and remineralization occur without any loss of tooth structure.

Stages of Caries Development-cont’d

  • Incipient lesion develops in the earliest stages when caries begins to demineralize the enamel.
  • Overt, or frank, lesion is characterized by cavitation (the development of a cavity or hole in the tooth).
  • Rampant: The time between the onset of the incipient lesion and the development of the cavity is rapid and there are multiple lesions throughout the mouth.

Fig. 13-4 A, The earliest sign of decay is decalcification (Courtesy Dr. John Featherstone, University of California, San Francisco, School of Dentistry.)

Fig. 13-4 B, Dental caries (Courtesy Dr. Frank Hodges, Santa Rosa, CA.)

Fig. 13-4 C, Dental caries (Courtesy Dr. Frank Hodges, Santa Rosa, CA.)

Fig. 13-5 Severely decayed molar on a child


Download 12.91 Kb.

Do'stlaringiz bilan baham:
1   2   3   4   5




Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling