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185117

EFFICIENCY OF RETENTION OF TWO ATTACHMENT DESIGNS USED FOR ALL ON FOUR MANDIBULAR INCLINED IMPLANTS ASSISTED OVERDENTURE

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Prosthodontics

Abstract

Introduction: Reduction of retention should be considered when selecting an attachment for inclined implants following the all-on-four concept.
Aim of the study: Evaluation the retentive force of mandibular implant-assisted overdentures with two different abutment designs following the all-on-four concept before and after cyclic loading.
Material and methods: Two identical completely edentulous mandible models were made with epoxy resin. Anterior two implants were placed parallel to each other in the symphyseal area and two tilted implants were placed distally inclined with 25 degree angulation at canine-1st premolar region of each model by using a 3D Printed surgical guide. For group I (study group/1st model) OT-Equator abutment was connected to the anterior parallel implants and OT-Equator with smart box abutment was connected to the tilted implants. Group II (control group/2nd model) using OT-Equator abutment connected to the anterior parallel implants and angled positioner abutment connected to tilted implants. A universal testing machine was used to evaluatethe retentive force was of all overdentures with different attachments following the all-on-four concept before and after cycling loading then compared with control group.
Results: When retentive forces of all overdentures with different attachments following the all-on-four concept before and after cyclic loading were compared, there was significant difference of retentive forces between different resilient caps which decreased after cyclic loading for both groups (p < 0.001).
Conclusions: The OT-Equator with smart box attachment group showed greater value of retentive force compared with the Angled Positioner attachment group before and after cyclic loading.

DOI

10.21608/adjalexu.2020.42368.1101

Keywords

Implant overdenture, tilted implants, OT Equator, Smart Box, Angled positioner

Authors

First Name

Nermine

Last Name

El-Sehly

MiddleName

-

Affiliation

Prosthodontics Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt

Email

mohamed_nermine@yahoo.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Abd Elgelel

MiddleName

-

Affiliation

Professor of Prosthodontics, Faculty of Dentistry, Alexandria University.

Email

aabdelgeleldent1979@gmail.com

City

-

Orcid

0000-0002-3200-866X

First Name

Nermeen

Last Name

Rady

MiddleName

Abdelsalam

Affiliation

Lecturer of Prosthodontics, Faculty of Dentistry, Alexandria University

Email

nermeen.rady@hotmail.com

City

-

Orcid

-

First Name

Ahmed

Last Name

El Banna

MiddleName

-

Affiliation

Department of Biomaterials ,Faculty of Dentistry , Ain Shames University .

Email

doctorbanna@asfd.asu.edu.eg

City

-

Orcid

-

Volume

46

Article Issue

3

Related Issue

28992

Issue Date

2021-12-01

Receive Date

2020-10-05

Publish Date

2021-12-01

Page Start

136

Page End

142

Print ISSN

1110-015X

Online ISSN

2536-9156

Link

https://adjalexu.journals.ekb.eg/article_185117.html

Detail API

https://adjalexu.journals.ekb.eg/service?article_code=185117

Order

26

Type

Original Article

Type Code

1,057

Publication Type

Journal

Publication Title

Alexandria Dental Journal

Publication Link

https://adjalexu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023