In vivo dentin microhardness beneath a calcium-phosphate cement
| Autor: | Mathilde C. Peters, Maria Fidela de Lima Navarro, W. C. Wagner, Sabine H. Dickens, Eduardo Bresciani |
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| Rok vydání: | 2010 |
| Předmět: |
Calcium Phosphates
Materials science Dental Pulp Capping Dentistry stomatognathic system Acid Etching Dental Dental cement Hardness Dentin medicine Humans General Dentistry Cement business.industry Biomaterial Research Reports Tooth Remineralization Resin Cements stomatognathic diseases medicine.anatomical_structure Knoop hardness test Adhesive business Biomedical engineering |
| Zdroj: | Journal of dental research. 89(8) |
| ISSN: | 1544-0591 |
| Popis: | A minimally invasive caries-removal technique preserves potentially repairable, caries-affected dentin. Mineral-releasing cements may promote remineralization of soft residual dentin. This study evaluated the in vivo remineralization capacity of resin-based calcium-phosphate cement (Ca-PO4) used for indirect pulp-capping. Permanent carious and sound teeth indicated for extraction were excavated and restored either with or without the Ca-PO4 base (control), followed by adhesive restoration. Study teeth were extracted after 3 months, followed by sectioning and in vitro microhardness analysis of the cavity floor to 115-µm depth. Caries-affected dentin that received acid conditioning prior to Ca-PO4 basing showed significantly increased Knoop hardness near the cavity floor. The non-etched group presented results similar to those of the non-treated group. Acid etching prior to cement application increased microhardness of residual dentin near the interface after 3 months in situ. |
| Databáze: | OpenAIRE |
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