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77157

Comparative study of the rate of tooth movement between corticotomy and piezocision to facilitate en masse retraction in bimaxillary protrusion

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Last updated: 25 Dec 2024

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Abstract

 
 Objective: The aim of this study was to evaluate the rate of orthodontic tooth movement and the time needed for extraction space closure when corticotomy and piezocision were used to facilitate en-masse retraction in bimaxillary protrusion cases. Subjects and Methods: The sample of this study consisted of twenty subjects having Class I malocclusion with bimaxillary protrusion and requiring extraction of four first premolars and en-masse retraction of the anterior segments on both arches. The sample was randomly divided into two equal groups; group I:corticotomy was performed by using piezosurgery through flap reflection and group II: corticotomy was performed by using piezocision (flapless corticotomy). Study models were obtained just before surgery and in every month for 6 months after surgery to measure the rate of orthodontic tooth movement in both groups. After completing the en-masse retraction, the retraction time in months was recorded for the right and left sides and averaged. Results: Group I showed a statistically significant shorter retraction time than group II. Group I showed a statistically significant increase in the rate of tooth movement from the 2nd to the 5th month in the upper arch. For the lower arch, group I exhibited a significant increase in the rate of tooth movement in the 4th month. Conclusion: Corticotomy involving flap reflection showed a shorter retraction time and higher rates of tooth movement than piezocision during en-masse retraction.

DOI

10.21608/eos.2018.77157

Authors

First Name

Rehab

Last Name

Khalil

MiddleName

-

Affiliation

Department of Orthodontics, Faculty of Dentistry, Beni-Suef University.

Email

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City

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Orcid

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First Name

Waleed

Last Name

Abbas

MiddleName

-

Affiliation

Oral Medicine and periodontology, Faculty of Dentistry, Ain Shams Universit

Email

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City

-

Orcid

-

First Name

Waleed

Last Name

Refaat

MiddleName

-

Affiliation

Faculty of Dentistry, Suez Canal University.

Email

-

City

-

Orcid

-

First Name

Ahmed

Last Name

Ramadan

MiddleName

-

Affiliation

Faculty of Dentistry, Suez Canal University.

Email

-

City

-

Orcid

-

Volume

54

Article Issue

December 2018

Related Issue

11546

Issue Date

2018-12-01

Receive Date

2018-05-12

Publish Date

2018-12-21

Page Start

11

Page End

17

Print ISSN

1110-435X

Online ISSN

2812-5258

Article File

EOS_Volume 54_Issue December 2018_Pages 11-17.pdf

PDF . 256.0kB

Link

https://eos.journals.ekb.eg/article_77157.html

Detail API

https://eos.journals.ekb.eg/service?article_code=77157

Order

2

Type

Original Article

Type Code

1,120

Publication Type

Journal

Publication Title

Egyptian Orthodontic Journal

Publication Link

https://eos.journals.ekb.eg/

MainTitle

Comparative study of the rate of tooth movement between corticotomy and piezocision to facilitate en masse retraction in bimaxillary protrusion

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Article

Created At

22 Jan 2023