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402140

FRACTURE RESISTANCE OF ULTRA TRANSLUCENT ZIRCONIA VERSUS LITHIUM DISILICATE IMPLANT SUPPORTED HYBRID ABUTMENT CROWNS TO TI BASE (AN IN-VITRO STUDY)

Article

Last updated: 07 Jan 2025

Subjects

-

Tags

Fixed Prosthodontics

Abstract

ABSTRACT
Aim of the study: to construct implant supported titanium based hybrid abutment crown from traditional lithium disilicate block/ultratranslucent zirconia disc with the help of five axis milling machine and to compare the fracture resistance of the two material.
Materials and methods: A total number of 24 (implant with titanium base abutment) samples were made and divided into two groups :The first group received ultra translucent zirconia hybrid abutment crown (Z), the second group received lithium disilicate hybrid abutment crown (L). All samples were exposed to a thermocycling and cyclic loading, to measure the strenght of the two materials crown samples were subjected to a static load in universal testing machine parallel to the long axis of the tooth using a metallic rod covered by aluminum foil to distribute the forces evenly till fracture of the specimen. The collected data were arranged in tabular form and statistically analysed.
Results: Implant supported ultratranslucent zirconia hybrid abutment crown showed significant higher fracture resistance (939.72 ± 70.99) than those of lithium disilicate hybrid abutment crown (874.88 ± 40.45) with (65.83 ± 23.59) difference as P=0.01, the results of both crowns showed readings above the clinical acceptable range(300-400N)
Conclusions: Ultratranslucent zirconia showed higher fracture resistance than lithium disilicate hybrid abutment crown.

DOI

10.21608/edj.2024.331678.3245

Keywords

Keywords: dental implants, CAD/CAM, hybrid abutment crown, IPS e. max CAD, Cyclic load

Authors

First Name

Dina

Last Name

Abd El Naby

MiddleName

Magdy

Affiliation

MSc, Fixed Prosthodontics,Faculty of Dentistry, Cairo University, Giza, Egypt

Email

dina.magdy@dentistry.cu.edu.eg

City

giza

Orcid

0009-0007-4948-5095

First Name

hesham

Last Name

alansary

MiddleName

-

Affiliation

Professor, Fixed Prosthodontics , Cairo University

Email

hesham.alansary@dentistry.cu.edu.eg

City

cairo

Orcid

0000-0002-1873-1181

First Name

Hayat

Last Name

El Banna

MiddleName

Ibrahim Mahrous

Affiliation

Assistant Professor, Fixed Prosthodontics Department, Faculty of Dentistry, Cairo University, Cairo, Egypt

Email

hayat.dental.86@gmail.com

City

cairo

Orcid

0000000216066878

Volume

71

Article Issue

1

Related Issue

52688

Issue Date

2025-01-01

Receive Date

2024-12-11

Publish Date

2025-01-01

Page Start

619

Page End

630

Print ISSN

0070-9484

Online ISSN

2090-2360

Link

https://edj.journals.ekb.eg/article_402140.html

Detail API

http://journals.ekb.eg?_action=service&article_code=402140

Order

402,140

Type

Original Article

Type Code

254

Publication Type

Journal

Publication Title

Egyptian Dental Journal

Publication Link

https://edj.journals.ekb.eg/

MainTitle

FRACTURE RESISTANCE OF ULTRA TRANSLUCENT ZIRCONIA VERSUS LITHIUM DISILICATE IMPLANT SUPPORTED HYBRID ABUTMENT CROWNS TO TI BASE (AN IN-VITRO STUDY)

Details

Type

Article

Created At

07 Jan 2025