[The microhardness of dental tissues as an index of their normal functional stability and in pathological states].
Microhardness of dental tissues was assessed. Hard tissue specimens from 65 teeth removed for medical indications were examined. The enamel microhardness is 30-40% decreased in caries, whereas dentine is virtually intact. Depulpation decreases the enamel microhardness by 23-26%, while the microhardness of dentine is changed negligibly (by 1-1.5%).
Danilina
T F
TF
Bagmutov
V P
VP
Slavskiĭ
Iu I
IuI
D000293:Adolescent; D000328:Adult; D003731:Dental Caries / Q000503:physiopathology*; D003743:Dental Enamel / Q000737:chemistry*; D003804:Dentin / Q000737:chemistry*; D006244:Hardness; D006245:Hardness Tests / Q000295:instrumentation / Q000379:methods; D006801:Humans; D066298:In Vitro Techniques; D012016:Reference Values; D013223:Statistics as Topic; D019553:Tooth, Nonvital / Q000503:physiopathology*
Mikrotverdost' tkaneĭ zuba kak pokazatel' ikh funktsional'noĭ ustoĭchivosti v norme i pri patologicheskikh sostoianiiakh.