Restorative Dentistry & Endodontics

Single-session associative protocol for dentin hypersensitivity management: a 1-year randomized, blinded clinical study: Thayna Carolina Zeni, Poliana Maria de Faveri Cardoso, Rafael da Silva Vanolli, Márcio José Mendonça, Julio Katuhide Ueda, Veridiana Camilotti; Restor Dent Endod 2024;49(2):e15. Published online March 20, 2024; DOI: https://doi.org/10.5395/rde.2024.49.e15

Abstract PDF PubReader ePub: Objectives
This study aimed to establish a single-session associative protocol for non-restorative management of dentin hypersensitivity (DH).
Materials and Methods
Twenty-four individuals with DH and a minimum sensitivity level of 4 on the visual analog scale (VAS) were selected. The study was conducted in a split-mouth design, with each participant (n = 20) having at least 1 affected tooth in all quadrants. The management protocols consisted of control group: universal adhesive, Neural Desensitizing Protocol group: 5% potassium nitrate, Mixed Desensitizing Protocol (PAM) group: 5% sodium fluoride and 5% potassium nitrate, Remineralizing Desensitizing Protocol (PDR) group: surface-partially reacted glass technology photopolymerizable varnish. Evaluations were performed immediately after application, at 1 week, 1 month, 2 months, and 12 months using the VAS sensitivity test.
Results
The scores were subjected to statistical analysis using the Friedman test (p < 0.05), Durbin-Conover test (p < 0.05), and Wilcoxon test (p < 0.05). At the 12-month evaluation, all groups showed statistically significant differences compared to the initial assessment. For the evaluation after 12 months, there was a statistically significant difference between the PAM group, the control group, and the PDR group.
Conclusions
It can be concluded that all groups were effective in controlling DH, but there were significant results in the control group and PDR group. The clinical relevance of this study is to demonstrate that the application of single-session desensitizing protocols can be effective in controlling DH for up to 12 months.
Trial Registration
Brazilian Clinical Trials Registry Identifier: RBR-4r63d7s

34 View
1 Download
1 Web of Science

Real-time measurement of dentinal fluid flow during desensitizing agent application: Sun-Young Kim, Eun-Joo Kim, In-Bog Lee; J Korean Acad Conserv Dent 2010;35(5):313-320. Published online September 30, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.5.313

Abstract PDF PubReader ePub: Objectives
The aim of this study was to examine changes in the dentinal fluid flow (DFF) during desensitizing agent application and to compare permeability after application among the agents.
Materials and Methods
A Class 5 cavity was prepared to exposure cervical dentin on an extracted human premolar which was connected to a sub-nanoliter fluid flow measuring device (NFMD) under 20 cm water pressure. DFF was measured from before application of desensitizing agent (Seal&Protect, SP; SuperSeal, SS; BisBlock, BB; Gluma desensitizer, GL; Bi-Fluoride 12, BF) through application procedure to 5 min after application.
Results
DFF rate after each desensitizing agent application was significantly reduced when compared to initial DFF rate before application (p < 0.05). SP showed a greater reduction in DFF rate than GL and BF did (p < 0.05). SS and BB showed a greater reduction in DFF rate than BF did (p < 0.05).
Conclusions
Characteristic DFF aspect of each desensitizing agent was shown in NFMD during the application procedure.

18 View
0 Download

Development of nano-fluid movement measuring device and its application to hydrodynamic analysis of dentinal fluid: In-Bog Lee, Min-Ho Kim, Sun-Young Kim, Juhea Chang, Byung-Hoon Cho, Ho-Hyun Son, Seung-Ho Back; J Korean Acad Conserv Dent 2008;33(2):141-147. Published online March 31, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.2.141

Abstract PDF PubReader ePub

This study was aimed to develop an instrument for real-time measurement of fluid conductance and to investigate the hydrodynamics of dentinal fluid. The instrument consisted of three parts; (1) a glass capillary and a photo sensor for detection of fluid movement, (2) a servo-motor, a lead screw and a ball nut for tracking of fluid movement, (3) a rotary encoder and software for data processing.

To observe the blocking effect of dentinal fluid movement, oxalate gel and self-etch adhesive agent were used. BisBlock (Bisco) and Clearfil SE Bond (Kuraray) were applied to the occlusal dentin surface of extracted human teeth. Using this new device, the fluid movement was measured and compared between before and after each agent was applied.

The instrument was able to measure dentinal fluid movement with a high resolution (0.196 nL) and the flow occurred with a rate of 0.84 to 15.2 nL/s before treatment. After BisBlock or Clearfil SE Bond was used, the fluid movement was decreased by 39.8 to 89.6%.

17 View
0 Download

Search