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dentin
Incisor Dentin of Hibernating Rodents as an Indicator of Some Climatic Factors
      
Architectonics and optical properties of dentin and dental enamel
      
The optical polarization method is used to study the distribution of tubules in human dentin.
      
They exhibit specific optical effects resembling conoscopic patterns, revealing the highly hierarchical structure of the crown dentin.
      
Comparative ablation rate from a Er: YAG laser on enamel and dentin of primary and permanent teeth
      
This study was conducted to analyze the ablation rate and micromorphological aspects of microcavities in enamel and dentin of primary and permanent teeth using a Er: YAG laser system.
      
Because children have been the most beneficiary patients with laser therapy in our offices, it is extremely necessary to compare the effects of this kind of laser system on the enamel and dentin of permanent and primary teeth.
      
Primary teeth are more easily ablated than are permanent teeth, when related to enamel or dentin.
      
Our results showed that dentin in both primary and permanent teeth is less resistant to Er: YAG laser ablation; this fact is easily observed under SEM observation and through the ablation rate evaluation.
      
Effectiveness of Photogem? activated by LED on the decontamination of artificial carious bovine dentin
      
The aim of this study was the evaluation of the effectiveness of photodynamic therapy on the decontamination of artificially induced carious bovine dentin, using Photogem? as the photosensitizer agent and an LED device as a light source.
      
Dentin samples obtained from bovine incisors were immersed in sterile broth supplemented by Lactobacillus acidophillus 108 colony formation units (CFU) and Streptococcus mutans 108 CFU.
      
After CFU counting per milligram of carious dentin and statistical analysis, we observed that the photodynamic therapy (PDT) parameters used were effective for bacterial reduction in the in vitro model under study.
      
Since LED devices are simpler and cheaper compared to laser systems, it would be interesting to verify their efficacy as a light source in photodynamic therapy for the decontamination of carious dentin.
      
Hypocalcified enamel was the softest, with values resembling those of dentin.
      
Bei einer Zertrümmerung des Apex mu? nicht unbedingt eine echte Trümmerzone aus frakturierten/abgesprengten Anteilen der apikalen Zement-Dentin-Wand vorliegen.
      
Auch die Druckseite der Wurzeloberfl?che zeigte bis tief in das Dentin reichende Resorptionslakunen, die mit einigen Osteoklasten besetzt waren.
      
In addition the effects of air-powder abrasive systems and prophylactic pastes on several dentin surfaces were measured.
      
The Air-Flow-S1? removed 641.2 μm/min of dentin compared to 339,6 μm/min by the Prophy-Jet? 30.
      
The crystal characteristics of enamel and dentin by XRD method
      
 

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