Evaluation of Profile Changes and Torque Control in Dental Bimaxillary Proclination Cases Using Lingual Lever Arm Mechanics vs Conventional Lingual Orthodontic Mechanics A Randomized Controlled Trial

Bimaxillary Proclination Clinical Trial

Official title:

Evaluation of Profile Changes and Torque Control in Dental Bimaxillary Proclination Cases Using Lingual Lever Arm Mechanics vs Conventional Lingual Orthodontic Mechanics A Randomized Controlled Trial

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT03579745
• Other study ID #: AKandil
• Status: Not yet recruiting
• Phase: N/A
• Start date: October 2018
• Est. completion date: June 2020

Study information

• Verified date: June 2018
• Source: Cairo University
• Contact: Ahmed Kandil Al Asfar, Masters
• Phone: 01008087762
• Email: Kandilahmed04[@]gmail.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study evaluates the profile changes and torque control using lingual lever arm vs conventional lingual mechanics. Half of the patients will receive lever arms and the other half will receive conventional lingual orthodontics.

Description:

Conventional lingual orthodontic biomechanics leads to torque loss during en masse retraction of the anterior segment in the bimaxillary proclination cases treated by first premolar extraction. Torque loss affects the final outcome of the treatment negatively.

Adding a lever arm to the lingual wire will transmit the point of force application at or apical to the center of rotation which will reduce or eliminate toqrue loss during anterior segment retraction.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 24
• Est. completion date: June 2020
• Est. primary completion date: November 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 30 Years

Eligibility

Inclusion Criteria:

• Male or female adult patients with age range 18-30 yrs old.

• Class I bimaxillary dentoalveolar proclination.

• Full permanent dentition.

• Good oral hygiene.

• Maximum anchorage is required.

• Healthy bone around the first molars is needed.

Exclusion Criteria:

.Systemic disease.

• Severe crowding.

• Extracted or missing upper permanent tooth/teeth (except for third molars).

• Signs, symptoms or previous history of temporomandibular disorders (TMD).

• Previous orthodontic treatment.

Related Conditions & MeSH terms

• Bimaxillary Proclination

Intervention

Procedure:
• Lingual orthodontics
A coil spring will be attached from the lever arm to the first molar tube

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Cairo University

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Nasolabial angle	Soft tissue lateral cephalometric radiograph measurement	12 months
Primary	Profile convexity reduction	N'-sn -Pog' soft tissue angle	12 months
Secondary	Torque control	U1 - Palatal plane angle	12 months