Permeability Characteristics of Bovine and Human Dentin under Different Pretreatment Conditions
| Autor: | Loys J. Nunez, Karl-Anton Hiller, Kurt Weis, Jürgen Stoll, Gottfried Schmalz |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
Tritiated water Statistics as Topic Dentistry Biocompatible Materials Dental bonding Sodium Chloride Tritium Tooth Cervix Diffusion chemistry.chemical_compound Acid Etching Dental stomatognathic system Human dentin Dentin medicine Animals Humans General Dentistry Analysis of Variance business.industry Dental Bonding Water Adhesion Hydraulic conductance Dentin Permeability stomatognathic diseases Cementoenamel junction medicine.anatomical_structure chemistry Permeability (electromagnetism) Models Animal Linear Models Microscopy Electron Scanning Diffusion Chambers Culture Cattle Radiopharmaceuticals business Algorithms Biomedical engineering |
| Zdroj: | Journal of Endodontics. 27:23-30 |
| ISSN: | 0099-2399 |
| DOI: | 10.1097/00004770-200101000-00007 |
| Popis: | In order to use bovine dentin instead of human dentin for in vitro adhesion and cytotoxicity tests the permeability characteristics of human and bovine dentin should be similar. In the present study hydraulic conductance (Lp) and diffusional water flux (J5) of human and bovine dentin slices were compared. The permeability experiments were performed in a split chamber using tritiated water in physiological saline. Lp and Js of bovine dentin were 0.7- to 2.4-fold and 1.1- to 3.5-fold that of human dentin (not statistically significant). For human and bovine dentin Lp and Js increased with etching and showed an inverse linear relationship (r > or = 0.7) with dentin thickness. The variability of bovine data was low (perfusion = 30%, diffusion = 22%) and about half that of the human data. In conclusion bovine dentin near the cementoenamel junction seems to be a suitable alternative for coronal human dentin for in vitro tests with respect to transdentinal permeability characteristics. |
| Databáze: | OpenAIRE |
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