Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin

Objectives: The aim of this study was to evaluate how microshear bond strength of different adhesive resin cements are affected by dentin desensitizers application and preparation depth.  Materials and Methods: One hundred and forty-four maxillary incisors were randomly divided into two groups accor...

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Main Authors: Fatih Sarı, Onur Şahin, Ali Kemal Özdemir
Format: Article
Language:English
Published: Cumhuriyet University 2019-05-01
Series:Cumhuriyet Dental Journal
Subjects:
Online Access:https://dergipark.org.tr/tr/download/article-file/676985
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author Fatih Sarı
Onur Şahin
Ali Kemal Özdemir
author_facet Fatih Sarı
Onur Şahin
Ali Kemal Özdemir
author_sort Fatih Sarı
collection DOAJ
description Objectives: The aim of this study was to evaluate how microshear bond strength of different adhesive resin cements are affected by dentin desensitizers application and preparation depth.  Materials and Methods: One hundred and forty-four maxillary incisors were randomly divided into two groups according to dentin preparation depth (0.8 and 1 mm) and each group subdivided into four dentin desensitizers, Nd:YAG (Neodymium-doped Yttrium aluminum Garnet) laser and control groups. The dentin desensitizers used were Gluma [Glutaraldehyde/ Hydroxyethyl methacrylate (HEMA)], BisBlock (Oxalate) Vivasens-Potassium Fluoride (KF) and Admira Protect (Ormocer/HEMA), respectively.  Three dual cure resin based luting cement (RelyX ARC; Variolink II and Maxcem Elite) were used to create a 0,7 mm diameter and 1 mm height cylindirical shape  buid-up in tygon tubes (n=10). Micro-shear bond strength (µSBS) test was performed at a crosshead of speed of 0.5 mm/min using a Universal testing device. Then tooth surface was investigated by steromicroscope and scanning electron microscopy (SEM). Data were analyzed using Kruskal-Wallis, Mann-Whitney U and Chi-Square (X2) tests. (p = 0.05)Results: There was no statistically difference between the groups at 0.8 mm preparation depth. At 1 mm preparation dept RelyX ARC + Gluma groups’ mean bond strength value (23.96 ± 6.66 MPa) was found statistically lower according to the other groups (p<0.05). RelyX ARC + Laser groups’ mean bond strength value (37.33 ± 7.39 MPa) was found statistically higher according to the other groups (p<0.05). Conclusions: The use of desensitizing agents affected the bond strength of the resin cements to superficial dentin. Gluma desensitizer affected negatively µSBS of RelyX ARC resin cement at 1 mm depth. Application of Nd:YAG laser to superficial dentin showed positive effects to the dentin surface and bond strength. Other desensitizing agents showed no significant effects on the resin bond strength (p>0.05).
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spelling doaj.art-f91286a391dc4c5ea5137fe966d6854d2023-09-03T07:37:26ZengCumhuriyet UniversityCumhuriyet Dental Journal1302-58052146-28522019-05-0122215616610.7126/cumudj.5379532057Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to DentinFatih Sarı0Onur Şahin1Ali Kemal Özdemir2GAZIANTEP UNIVERSITY, FACULTY OF DENTISTRYBULENT ECEVIT UNIVERSITY, FACULTY OF DENTISTRYTRAKYA UNIVERSITY, FACULTY OF DENTISTRYObjectives: The aim of this study was to evaluate how microshear bond strength of different adhesive resin cements are affected by dentin desensitizers application and preparation depth.  Materials and Methods: One hundred and forty-four maxillary incisors were randomly divided into two groups according to dentin preparation depth (0.8 and 1 mm) and each group subdivided into four dentin desensitizers, Nd:YAG (Neodymium-doped Yttrium aluminum Garnet) laser and control groups. The dentin desensitizers used were Gluma [Glutaraldehyde/ Hydroxyethyl methacrylate (HEMA)], BisBlock (Oxalate) Vivasens-Potassium Fluoride (KF) and Admira Protect (Ormocer/HEMA), respectively.  Three dual cure resin based luting cement (RelyX ARC; Variolink II and Maxcem Elite) were used to create a 0,7 mm diameter and 1 mm height cylindirical shape  buid-up in tygon tubes (n=10). Micro-shear bond strength (µSBS) test was performed at a crosshead of speed of 0.5 mm/min using a Universal testing device. Then tooth surface was investigated by steromicroscope and scanning electron microscopy (SEM). Data were analyzed using Kruskal-Wallis, Mann-Whitney U and Chi-Square (X2) tests. (p = 0.05)Results: There was no statistically difference between the groups at 0.8 mm preparation depth. At 1 mm preparation dept RelyX ARC + Gluma groups’ mean bond strength value (23.96 ± 6.66 MPa) was found statistically lower according to the other groups (p<0.05). RelyX ARC + Laser groups’ mean bond strength value (37.33 ± 7.39 MPa) was found statistically higher according to the other groups (p<0.05). Conclusions: The use of desensitizing agents affected the bond strength of the resin cements to superficial dentin. Gluma desensitizer affected negatively µSBS of RelyX ARC resin cement at 1 mm depth. Application of Nd:YAG laser to superficial dentin showed positive effects to the dentin surface and bond strength. Other desensitizing agents showed no significant effects on the resin bond strength (p>0.05).https://dergipark.org.tr/tr/download/article-file/676985dentin sensitivitydentin desensitizing agentsresin cementsshear strength
spellingShingle Fatih Sarı
Onur Şahin
Ali Kemal Özdemir
Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin
Cumhuriyet Dental Journal
dentin sensitivity
dentin desensitizing agents
resin cements
shear strength
title Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin
title_full Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin
title_fullStr Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin
title_full_unstemmed Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin
title_short Effect of Dentin Desensitizers and Nd:YAG Laser Pre-Treatment on Microshear Bond Strength of Adhesive Resin Cement to Dentin
title_sort effect of dentin desensitizers and nd yag laser pre treatment on microshear bond strength of adhesive resin cement to dentin
topic dentin sensitivity
dentin desensitizing agents
resin cements
shear strength
url https://dergipark.org.tr/tr/download/article-file/676985
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AT alikemalozdemir effectofdentindesensitizersandndyaglaserpretreatmentonmicroshearbondstrengthofadhesiveresincementtodentin