scholarly journals Comparative evaluation of the effectiveness of desensitizing agents in dentine tubule occlusion using scanning electron microscopy

2015 ◽  
Vol 60 (1) ◽  
pp. 65-72 ◽  
Author(s):  
CL Chen ◽  
A Parolia ◽  
A Pau ◽  
IC Celerino de Moraes Porto
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Comparative Evaluation ◽  
Desensitizing Agents ◽  
Dentine Tubule ◽  
Tubule Occlusion ◽  
Scanning Electron

The Evaluation of Dentinal Tubule Occlusion by Desensitizing Agents: A Real-time Measurement of Dentinal Fluid Flow Rate and Scanning Electron Microscopy

2013 ◽  
Vol 38 (4) ◽  
pp. 419-428 ◽  
Author(s):  
SY Kim ◽  
EJ Kim ◽  
DS Kim ◽  
IB Lee
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Fluid Flow ◽  
Dentinal Tubule ◽  
Different Types ◽  
Dentinal Fluid Flow ◽  
Desensitizing Agents ◽  
Light Curing ◽  
Tubule Occlusion ◽  
Scanning Electron

SUMMARY The aims of this study were to examine changes in dentinal fluid flow (DFF) during the application of a desensitizing agent and to compare the permeability reduction levels among different types of desensitizing agents. A cervical cavity was prepared for the exposure of cervical dentin on an extracted human premolar connected to a subnanoliter fluid flow measuring device under 20 cm of water pressure. The cavity was acid-etched with 32% phosphoric acid to make dentin highly permeable. The different types of desensitizing agents that were applied on the cavity were Seal&Protect as the light-curing adhesive type, SuperSeal and BisBlock as oxalate types, Gluma Desensitizer as the protein-precipitation type, and Bi-Fluoride 12 as the fluoride type. DFF was measured from the time before the application of the desensitizing agent throughout the application procedure to five minutes after the application. The characteristics of dentinal tubule occlusion of each desensitizing agent were examined by scanning electron microscopy. The DFF rate after each desensitizing agent application was significantly reduced when compared to the initial DFF rate before application for all of the desensitizing agents (p<0.05). Seal&Protect showed a greater reduction in the DFF rate when compared to Gluma Desensitizer and Bi-Fluoride 12 (p<0.05). SuperSeal and BisBlock exhibited a greater reduction in DFF rate when compared to Bi-Fluoride 12 (p<0.05). The dentin hypersensitivity treatment effects of the employed desensitizing agents in this study were confirmed through real-time measurements of DFF changes. The light-curing adhesive and oxalate types showed greater reduction in the DFF rate than did the protein-precipitation and fluoride types.

scholarly journals Perbedaan efektifitas penutupan tubulus dentin antara pasta gigi yang mengandung bioaktif glass (novamin) dan strontium chloride

2019 ◽  
Vol 8 (2) ◽  
pp. 96
Author(s):  
Profilia Shinta ◽  
Ketut Suardita ◽  
Moch. Mudjiono
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Bioactive Glass ◽  
Strontium Chloride ◽  
Dentinal Tubule ◽  
Two Samples ◽  
Dentinal Hypersensitivity ◽  
Tubule Occlusion ◽  
Scanning Electron ◽  
At Home

Background : Dentinal hypersensitivity (DH) is a painful clinical condition and is characterized by pain arising from exposed dentin in response to various stimuli. Various treatment modalities are available to treat dentinal hypersensitivity which include at-home and in-office treatment. At home treatment generally consists of a variety of dentrifices containing different constituents like strontium chloride and bioactive glass (Novamin). These agents cause occlusion of dentinal tubules thereby reducing hypersensitivity.Purpose: This study  was  to evaluate the effects of different desensitizing dentifrices on dentinal tubule occlusion by scanning electron microscopy (SEM) of strontium chloride and bioactive glass (Novamin) pastes in the treatment of dentinehypersensitivity (DH) Methods: sixteen extractedspecimens from bovine incisors teeth with randomized into 2 groups (n=8). The crowns were removed from the root and the crown  were sectioned longitudinally into two parts (in a mesiodistaldirection). The cervical toothwere resulting in two samples per tooth.Dentinal tubules were exposedand thesamples provided a 4 mm x 4 mm area of exposed dentinal tubules.Group 1 (treated with strontium chloride), Group 2 (treated with  bioactive glass (novamin))After each treatment for seven days, tubule occlusion on dentin were analyzed by scanning electron microscopy  (SEM).The data were analyzed using “mann-whitneytest” (p<0.05).Result: Groups bioactive glass (novamin) showed tubule occlusion highest when compared with groups strontium chloride.Conclusion: bioactive glass (novamin) paste showed tubule occlusion highest with strontium chloride

scholarly journals Effects of Dentifrices Containing Nanohydroxyapatite on Dentinal Tubule Occlusion—A Scanning Electron Microscopy and EDX Study

2020 ◽  
Vol 10 (18) ◽  
pp. 6513
Author(s):  
Emilia Bologa ◽  
Simona Stoleriu ◽  
Gianina Iovan ◽  
Cristina Angela Ghiorghe ◽  
Irina Nica ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Study Groups ◽  
Control Group ◽  
Dentinal Tubule ◽  
Human Teeth ◽  
Dentinal Tubules ◽  
Mineral Deposition ◽  
Tubule Occlusion ◽  
Scanning Electron

This in vitro study evaluated the effects of dentifrices containing nano-hydroxyapatite (n-HAp) on dentinal tubule occlusion and on mineral deposition. Dentin specimens of ten human teeth were submersed for 30 s in 40% citric acid and then randomly divided into four groups (three study groups and one control group). In the study groups, the dentin samples were exposed to three different n-HAp toothpastes: Karex (Dr. Kurt Wolff GmbH & Co. KG, Bielefeld, Germany), Biorepair Plus Sensitive (Coswell SpA, Bologna, Italy), and Dr. Wolff’s Biorepair (Dr. Kurt Wolff GmbH & Co. KG, Bielefeld, Germany); in the control group no toothpaste was applied. All of the samples were evaluated using scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analysis. In the control group all of the samples showed a frank and wide opening of the dentinal tubules, whereas in the study groups different degrees of tubule closure by mineral depositions were observed. Toothpastes containing n-HAp determined a significant occlusion of dentinal tubules and a significant increase of mineral deposition on the dentin surface. All three tested toothpastes showed similar results regarding the degree of dentinal tubule closure. Varying degrees of differences in calcium, phosphate, carbon, and oxygen ion concentrations among the three tested toothpastes were obtained.

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