Abstract:
:The clinical feasibility of a novel device called a Cariotester was investigated by measuring the Knoop hardness (KHN) of white spot lesions diagnosed as ICDAS code 1, 2 or 3. To obtain an equation for converting the Cariotester indentation depth into the KHN, a regression analysis was performed between the depth and measured KHN for human enamel. The Cariotester was then used to measure the indentation depth for white spots (ICDAS code 1, 2 or 3) in extracted teeth, and the KHN values were determined using the above equation. The KHN was 219.9±19.7, 162.4±24.0 and 31.7±17.5 for code 1, 2 and 3 lesions, respectively, which was 30, 49 and 90% lower than that for healthy enamel. Using the formula reported in the literature, the mineral density was calculated to be 87.7 vol.% for healthy enamel, and 75.1, 66.1 and 35.5 vol.% for code 1, 2 and 3 lesions, respectively.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Shimizu A,Yamamoto T,Nakashima S,Nikaido T,Sugawara T,Momoi Ydoi
10.4012/dmj.2014-282subject
Has Abstractpub_date
2015-01-01 00:00:00pages
252-6issue
2eissn
0287-4547issn
1881-1361journal_volume
34pub_type
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