Biomimetic deposition of calcium phosphate minerals on the surface of partially demineralized dentine modified with phosphorylated chitosan
Bibliographic record
Abstract
The aim of this study is to remineralize partially demineralized dentine sections using phosphorylated chitosan (P-chi) based on mimicking the nucleating role of the phosphorylated noncollagenous proteins in the biomineralization of dentine. The surface of partially demineralized dentine sections, mainly composed of type I collagen, were modified by covalent immobilization of P-chi on the collagen surface. The dentine sections were subsequently put into remineralizing solution for remineralization, and then the remineralizing effect was investigated. The remineralization effect of this methodology was compared with that of fluoride. Moreover, the influence of surface properties of samples on remineralizing effect was investigated. The experimental results indicated that the effect of fluoride on remineralization of dentine was limited when residual crystals were lacking on the surface of partially demineralized dentine, whereas the covalent immobilization of P-chi can significantly induce deposition of calcium phosphate minerals on the surface of the partially demineralized dentine. This biomimetic methodology resulted in favorable surface properties (i.e., highly negative charge and low interfacial free energy between substrate and remineralizing medium) for crystal nucleation. Thus, P-chi can facilitate surface remineralization of dentine and thereby could find application in the minimally invasive management of dentine caries and dentine hypersensitivity.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".