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9 Cards in this Set

  • Front
  • Back

Hidden caries

Ricketts & Kidd 1997

Occlusal caries

Very large decays often occurring while the opening to the surface remains small G V Black 1908

Prevalence of hidden caries

22% Allan & Naylor 1984


6.3% upper molars, 12.9% lower molars - Kidd 1992

Bacteria present in hidden caries

S mutans, s sobrinus and lactobacilli compared to open cavities - De Soet et al 1995

Occlusal lesion on radiograph

Once an occlusal lesion is visible on radiograph, demin extends to or beyond the middle third of dentine - ricketts, kidd & smith 1995

Arresting caries by sealants

Metz-Fairhurst et al 1986

Sealed carious tooth

Handelman et al 1986

Effect of autopolymer sealants on viability of microflora in occlusal dental caries

Jensen & handelman 1980


Etching process reduces 75% bacteria

Caries under restoration

Besik 1945 - carious process in dentine definitely stops or gradually ceases as soon as the lesion is closed from the oral environment even when the organisms stay alive


Bacteria ha e a tendency to die out


30% showed positive cultures of streptococci persisted after being sealed for more than a year