Evaluation of Root Resorption Following Different Mandibular Incisors Intrusive Mechanics

NCT ID: NCT05414019

Last Updated: 2025-04-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Clinical Phase

NA

Total Enrollment

21 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-05-15

Study Completion Date

2026-01-31

Brief Summary

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Evaluation of root resorption following different mandibular incisors intrusive mechanics : A randomized clinical trial

Detailed Description

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Conditions

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Orthodontic Tooth Movement Intrusion of Tooth Resorption, Root

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The total sample of patients will be randomly divided into three equal groups: Miniscrew: 7 patients will receive an intrusive force delivered by elastics from 2 miniscrews between mandibular lateral incisor and mandibular canine. Utility arch: 7 patients will receive an intrusive force delivered by intrusive utility arch. Nitinol reverse curve wire: 7 patients will receive an intrusive force delivered by Nitinol reverse curve wire.
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Observation:

Each patient will be followed up on periodic base for progress evaluation and integrity checks, as well as root resorption will be evaluated using CBCT images taken before and after the intrusion.

Ethical considerations:

An informed consent form (attached copy) that explains every step in the research will be given and discussed carefully with the patient and his/her parents before participation in the study and should be signed freely. The objectives of the study will be discussed and explained with the patients and / or their guardians and they will receive a copy of the consent form as well.

Data management and analysis:

The data will be collected, tabulated, and statistically analyzed using Statistical Package for Social Sciences (SPSS program, version 18, Inc., Chicago, III).

Study Groups

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Mini-screw

7 patients will receive an intrusive force delivered by elastics from 2 mini-screws between mandibular lateral incisor and mandibular canine.

Group Type ACTIVE_COMPARATOR

Mini-screw

Intervention Type OTHER

7 patients will receive an intrusive force delivered by elastics from 2 mini-screws between mandibular lateral incisor and mandibular canine.

Utility arch

7 patients will receive an intrusive force delivered by intrusive utility arch.

Group Type ACTIVE_COMPARATOR

Utility arch

Intervention Type OTHER

7 patients will receive an intrusive force delivered by intrusive utility arch.

Nitinol reverse curve wire

7 patients will receive an intrusive force delivered by Nitinol reverse curve wire.

Group Type ACTIVE_COMPARATOR

Nitinol reverse curve wire

Intervention Type OTHER

7 patients will receive an intrusive force delivered by Nitinol reverse curve wire

Interventions

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Mini-screw

7 patients will receive an intrusive force delivered by elastics from 2 mini-screws between mandibular lateral incisor and mandibular canine.

Intervention Type OTHER

Utility arch

7 patients will receive an intrusive force delivered by intrusive utility arch.

Intervention Type OTHER

Nitinol reverse curve wire

7 patients will receive an intrusive force delivered by Nitinol reverse curve wire

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patient will be included in this study if has:

* An age range between 12 and 16 years.
* Deep overbite with excessive curve of Spee of more than 5mm
* Over erupted lower incisors.
* Permanent teeth are all present (except for third molar).
* No previous orthodontic treatment.
* No indications or symptoms of periodontal disease in the past or present, as determined by clinical and radiographic examination

Exclusion Criteria

* Patients who needed surgery to fix skeletal problems.
* Any previous trauma or root canal therapy
* Missing lower incisor.
* Patients with congenital dentoskeletal disorders
Minimum Eligible Age

12 Years

Maximum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Al-Azhar University

OTHER

Sponsor Role lead

Responsible Party

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Mahmoud Salah Mahmoud Ali Nassar

Principle investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Mahmoud S Nassar, student

Role: PRINCIPAL_INVESTIGATOR

Al-Azhar University

Locations

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Al Azhar University

Cairo, , Egypt

Site Status

Countries

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Egypt

References

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Goel P, Tandon R, Agrawal KK. A comparative study of different intrusion methods and their effect on maxillary incisors. J Oral Biol Craniofac Res. 2014 Sep-Dec;4(3):186-91. doi: 10.1016/j.jobcr.2014.11.007. Epub 2014 Dec 6.

Reference Type BACKGROUND
PMID: 25737942 (View on PubMed)

Hamdan AM, Lewis SM, Kelleher KE, Elhady SN, Lindauer SJ. Does overbite reduction affect smile esthetics? Angle Orthod. 2019 Nov;89(6):847-854. doi: 10.2319/030819-177.1. Epub 2019 Jul 15.

Reference Type BACKGROUND
PMID: 31306077 (View on PubMed)

Piancino MG, Tortarolo A, Di Benedetto L, Crincoli V, Falla D. Chewing Patterns and Muscular Activation in Deep Bite Malocclusion. J Clin Med. 2022 Mar 19;11(6):1702. doi: 10.3390/jcm11061702.

Reference Type BACKGROUND
PMID: 35330027 (View on PubMed)

Nielsen IL. Vertical malocclusions: etiology, development, diagnosis and some aspects of treatment. Angle Orthod. 1991 Winter;61(4):247-60. doi: 10.1043/0003-3219(1991)0612.0.CO;2.

Reference Type BACKGROUND
PMID: 1763835 (View on PubMed)

Sonnesen L, Svensson P. Temporomandibular disorders and psychological status in adult patients with a deep bite. Eur J Orthod. 2008 Dec;30(6):621-9. doi: 10.1093/ejo/cjn044. Epub 2008 Aug 5.

Reference Type BACKGROUND
PMID: 18684706 (View on PubMed)

Guven BA, Ciger S. Evaluation of the Effect of Fixed Anterior Biteplane Treatment on Temporomandibular Joint in Patients with Deep Bite. Turk J Orthod. 2020 Mar 1;33(1):8-12. doi: 10.5152/TurkJOrthod.2020.19108. eCollection 2020 Mar.

Reference Type BACKGROUND
PMID: 32284893 (View on PubMed)

Millett DT, Cunningham SJ, O'Brien KD, Benson PE, de Oliveira CM. Orthodontic treatment for deep bite and retroclined upper front teeth in children. Cochrane Database Syst Rev. 2018 Feb 1;2(2):CD005972. doi: 10.1002/14651858.CD005972.pub4.

Reference Type BACKGROUND
PMID: 29390172 (View on PubMed)

Nanda R. The differential diagnosis and treatment of excessive overbite. Dent Clin North Am. 1981 Jan;25(1):69-84. No abstract available.

Reference Type BACKGROUND
PMID: 6937401 (View on PubMed)

Burstone CR. Deep overbite correction by intrusion. Am J Orthod. 1977 Jul;72(1):1-22. doi: 10.1016/0002-9416(77)90121-x.

Reference Type BACKGROUND
PMID: 267433 (View on PubMed)

Other Identifiers

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799/2234

Identifier Type: -

Identifier Source: org_study_id

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