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.

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&lt;0.05). Seal&Protect showed a greater reduction in the DFF rate when compared to Gluma Desensitizer and Bi-Fluoride 12 (p&lt;0.05). SuperSeal and BisBlock exhibited a greater reduction in DFF rate when compared to Bi-Fluoride 12 (p&lt;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 Dentin Tubular Occlusion with Bioactive Glass Containing Dentrifice and Gluma Desensitizer–A Comparative Sem Evaluation

2014 ◽  
Vol 02 (01) ◽  
pp. 016-021
Author(s):  
Ashu Gupta ◽  
Neha Sharma ◽  
Manmohan Bramta
Keyword(s):  
Bioactive Glass ◽  
Treatment Modalities ◽  
Tooth Surface ◽  
Strontium Chloride ◽  
Potassium Oxalate ◽  
Dentinal Tubules ◽  
Initial Application ◽  
Desensitizing Agents ◽  
Dentinal Hypersensitivity ◽  
At Home

AbstractDentinal 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 stannous fluoride, strontium chloride and potassium oxalate. These agents cause occlusion of dentinal tubules which decreases both dentine permeability and fluid movement thereby reducing hypersensitivity. Recently, bioactive glass (NovaMin) has been incorporated as a remineralising ingredient in dentifrice formulations for treating Dentinal Hyprsensitivity. It relieves the symptoms by precipitating hydroxycarbonate apatite (HCA) onto the tooth surface. Another combination product consisting of an aqueous solution of 5% glutaraldehyde and 35% hydroxyethyl methacrylate (Gluma desensitizer) has also been reported to be an effective desensitizing agent. Thus, the aim of the study was to evaluate and compare the tubule occluding effect of of two desensitizing agents, which are bioactive glass (Novamin), and Gluma Desensitizer. In the present study bioactive glass was found to produce more completely occluded tubules while Gluma desensitizer caused more partial occlusion on initial application. Hence, NovaMin application could be more effective in providing relief from dentinal hypersensitivity when compared with Gluma Desensitizer.

scholarly journals A Comparison of Er:YAG Laser with Photon-Initiated Photoacoustic Streaming, Nd:YAG Laser, and Conventional Irrigation on the Eradication of Root Dentinal Tubule Infection by Enterococcus faecalis Biofilms: A Scanning Electron Microscopy Study

Scanning ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Burcu Ozses Ozkaya ◽  
Kamran Gulsahi ◽  
Mete Ungor ◽  
Julide Sedef Gocmen
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Enterococcus Faecalis ◽  
Nd:Yag Laser ◽  
Er:Yag Laser ◽  
Dentinal Tubule ◽  
Sem Images ◽  
Apical Position ◽  
Conventional Irrigation ◽  
Scanning Electron

This study evaluated the antimicrobial efficacy of Er:YAG laser activation with photon-initiated photoacoustic streaming (PIPS), Nd:YAG laser disinfection, and conventional irrigation on Enterococcus faecalis biofilms using scanning electron microscopy (SEM). Biofilms were grown on 110 root halves and divided into the following: Groups 1 and 2 (saline and 1% NaOCl with apical position of PIPS, resp.), Groups 3 and 4 (saline and 1% NaOCl with coronal position of PIPS, resp.), Groups 5 and 6 (Nd:YAG laser after saline and 1% NaOCl irrigation, resp.) and Groups 7, 8, and 9 (conventional irrigation with 1% NaOCl, 6% NaOCl, and saline, resp.). SEM images of the apical, middle, and coronal levels were examined using a scoring system. Score differences between Groups 1 and 2 were insignificant at all levels in the remaining biofilm. Group 4 had significantly greater bacterial elimination than Group 3 at all levels. Differences in Nd:YAG laser irradiation between Groups 5 and 6 were insignificant. Groups 7 and 8 were insignificantly different, except at the middle level. Saline group had a higher percentage of biofilms than the others. In this study, PIPS activation with NaOCl eliminates more E. faecalis biofilms in all root canals regardless of the position of the fiber tip.

Investigation of the Bioactivity of Dental Ceramic / Bioactive Glass Composites Prepared by the Sol Gel Route

2008 ◽  
Vol 396-398 ◽  
pp. 119-122 ◽  
Author(s):  
Ourania Menti Goudouri ◽  
Eleana Kontonasaki ◽  
Xanthippi Chatzistavrou ◽  
Lambrini Papadopoulou ◽  
Petros Koidis ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Fourier Transform ◽  
Bioactive Glass ◽  
Sol Gel ◽  
Ceramic Composites ◽  
Dental Ceramic ◽  
Glass Composites ◽  
Crystal Phases ◽  
Scanning Electron

Sol-gel derived glasses have been reported to express considerably higher bioactivity than melt-derived ones. The use of the sol-gel method for the fabrication of dental ceramic bioactive glass composites has resulted in composites consisting of an amorphous glassy network into which crystals of Calcium Silicate (CS), Wollastonite (W), leucite (Lt) and Fluorapatite (FAp) are dispersed. Thus, the aim of the present study was the investigation of the bioactivity of sol-gel derived dental ceramic/bioactive glass composites, in the form of powders and in thermally treated disk shaped specimens. Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) were used to characterize the reacted products. The sol-gel derived dental glass ceramic composites present high bioactivity compared to the respective melt-derived ones, which is attributed to the higher CaO content and the crystallization of bioactive W and CS crystal phases during the fabrication process. However, the powdered samples presented faster HCAp formation compared to the respective specimens, due to their higher surface energy.

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