Effect of Skeletally Anchored Reversed PowerScope Appliance in Orthodontic Treatment of Patients With Class III Malocclusion

Not Applicable

• Conditions: Effect of PowerScope Appliance in Treatment of Patients With Class 3 Malocclusion
• Interventions: Device: powerscope

• Registration Number: NCT05475548
• Lead Sponsor: Al-Azhar University

Brief Summary

the PowerScope appliance is found to be efficient for the treatment of class II malocclusion. Accordingly, it appears valuable to investigate the efficiency of skeletally anchored powerScope in the treatment of class III malocclusion

Detailed Description

The PowerScope is the latest innovation in the treatment of Class II malocclusion which is a direct derivative of the Herbst Type II appliance. Dr. Andy Hayes worked in conjunction with American Orthodontics to develop PowerScope in 2016. This appliance supports intermaxillary wire-to-wire installation via a nut and hexagonal screw. A ball and socket joint is used to maximize lateral movement while improving patient comfort. The appliance is made up of a telescopic mechanism made up of an inner shaft/push rod, middle and outer tubing, and a spacer between the middle and outer tubing. A nickel-titanium (NiTi) spring provides a constant 260 g force. According to the present knowledge no studies regarding treatment outcomes of comprehensive fixed appliance treatment combined with the PowerScope in Class ΙII patients have been reported.

The introduction of temporary anchorage devices (TADs) has made it possible to achieve absolute anchorage control in daily clinical orthodontic practice when used in conjunction with fixed functional appliances. However, it appears that there is no evidence in the literature supporting the clinical effectiveness of miniscrew- anchored fixed functional appliances for the treatment of Class III malocclusion.

According to the current available literature, the PowerScope appliance is found to be efficient for the treatment of class II malocclusion. Accordingly, it appears valuable to investigate the efficiency of skeletally anchored powerScope in the treatment of class III malocclusion.

Study Timeline

• Status Verified: 2022-07
• Study First Submitted: 2022-07-17
• Study First Submitted QC: 2022-07-24
• Last Update Submitted: 2022-07-24
• Study First Posted: 2022-07-27
• Last Update Posted: 2022-07-27
• Study Start: 2022-12
• Primary Completion: 2023-12
• Study Completion: 2023-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 16

Inclusion Criteria

Not provided

Exclusion Criteria

1. Orthodontic cases with severe crowding of upper and lower anterior segment that require extraction treatment approach.
2. Patients with a blocked-out tooth that will not allow for placement of the bracket at the initial bonding appointment.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: FACTORIAL

Arm && Interventions

Group	Intervention	Description
Group (A): using reversed skeletally anchored PowerScope as a fixed functional appliance.	powerscope	eight patients with mild to moderate Class IΙΙ malocclusion who will be treated by pre-adjusted straight wire appliance followed by reversed skeletally anchored PowerScope as a fixed functional appliance.
Group (B): using dentally anchored reversed PowerScope as a fixed functional appliance	powerscope	eight patients with mild to moderate Class IΙΙ malocclusion who will be treated by pre-adjusted straight wire appliance followed by dentally anchored reversed PowerScope as a fixed functional appliance

Primary Outcome Measures

Name	Time	Method
Evaluation soft tissue parameters	1.5 years	amount of soft tissue change by cephalometric
Evaluation of different dentoskeletal cephalometric parameters	1.5 years	amount of dentoskeletal change by cephalometric

Trial Locations

Locations (1)

Ahmed Mohamed Ibrahim Sallam; 🇪🇬 Cairo, Egypt