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28401

Evaluation of Fracture Resistance of Some Contemporary Class II Glass Ionomer Restorations at Different Time Intervals

Article

Last updated: 22 Jan 2023

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Subjects

-

Tags

Operative Dentistry

Abstract

Purpose:
was to evaluate and compare fracture resistance of some contemporary glass ionomer restorations (Amalgomer CR, EQUIA Fort fil and EQUIA fil) in class II cavities at different time intervals.
 
Materials and Methods: A total of 90 class II cavities were prepared in extracted maxillary premolars (n=90).   The samples were divided into three main groups (30 each) according to the materials; These three groups were further subdivided into three groups according to assessment time; 24 hours, one month and three months. Each material was applied to the cavity according to manufactures' instructions. Samples were stored in artificial saliva for the study storage periods. At the end of each storage period samples were subjected to thermocycling at 5˚C and 55˚C for 1000 cycles. The samples were subjected to fracture resistance test using universal testing machine. Failure modes were evaluated using stereomicroscope and micromorphology of fractured restorations and tooth restoration interface were evaluated using Scanning Electron Microscope (ESM).
Results:
the results revealed that the highest mean value recorded for Amalgomer CR followed by Equia Fort fil while Equia fil recorded the lowest mean value. Also the results revealed that the highest mean value recorded after three months storage followed by one moth storage while one month storage recorded the lowest mean value.
 
Conclusions:
Fracture resistance of cone temporary glass ionomers in class II cavities is affected by storage for 3 months. Ceramic reinforced glass ionomer (Amalgomer CR) appears promising regarding fracture resistance.

DOI

10.21608/adjg.2019.28401

Authors

First Name

Nafesa

Last Name

Sakr

MiddleName

Mostafa Ali

Affiliation

Demonstrator of operative dentistry Department, Faculty of Dental Medicine for Girls, Al-Azhar University, Egypt.

Email

samy.saeed.edu@gmail.com

City

-

Orcid

-

First Name

Maha

Last Name

Niazy

MiddleName

Ahmed

Affiliation

Professor of Operative Dentistry, Faculty of Dental Medicine for Girls, Al-Azhar University, Egypt.

Email

drniazy_maha@hotmail.com

City

-

Orcid

0000-0002-9361-9878

First Name

Nevin

Last Name

Gad

MiddleName

Abd-El-Aziz

Affiliation

Lecturer of Operative dentistry, Faculty of Dental Medicine for Girls, Al-Azhar University, Egypt.

Email

nevingad@yahoo.com

City

-

Orcid

-

Volume

6

Article Issue

1

Related Issue

5063

Issue Date

2019-01-01

Receive Date

2019-03-06

Publish Date

2019-01-01

Page Start

45

Page End

51

Print ISSN

2537-0308

Online ISSN

2537-0316

Article File

ADJG_Volume 6_Issue 1_Pages 45-51.pdf

PDF . 703.9kB

Link

https://adjg.journals.ekb.eg/article_28401.html

Detail API

https://adjg.journals.ekb.eg/service?article_code=28401

Order

9

Type

Original Article

Type Code

488

Publication Type

Journal

Publication Title

Al-Azhar Dental Journal for Girls

Publication Link

https://adjg.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023