The Use of Statically Determinate Force System in Closure of Anterior Open Bite in Adults.

Not Applicable

Completed

• Conditions: Anterior Openbite
• Interventions: Device: Extrusion arch

• Registration Number: NCT04901221
• Lead Sponsor: Alexandria University

Brief Summary

The aim of the current study was to evaluate and quantify the cephalometric changes produced by maxillary and mandibular extrusion arches in closure of anterior open bite in non-growing patients.

Detailed Description

Not available

Study Timeline

• Study Start: 2019-04-01
• Primary Completion: 2021-04-20
• Study Completion: 2021-05-01
• Study First Submitted: 2021-05-20
• Study First Submitted QC: 2021-05-20
• Study First Posted: 2021-05-25
• Status Verified: 2022-07
• Last Update Submitted: 2022-07-14
• Last Update Posted: 2022-07-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 23

Inclusion Criteria

• Adult patients with anterior open bites more than 1 mm, permanent dentition except for the third molars which were extracted if erupted

Exclusion Criteria

• Frankfort to mandibular plane angle > 40
• congenital craniofacial malformations or temporomandibular joint disorders,
• patients with severe gum show during smiling or increased incisal show at rest.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Extrusion arch	Extrusion arch	Hand made stainless steel extrusion arch wire (0.016x0.22")

Primary Outcome Measures

Name	Time	Method
angular and vertical linear effects on incisors	up to 6 months	Extrusion of upper and lower incisors measured from: incisal edge, centroid point and apex to the palatal and mandibular planes for the upper and lower incisors respectively. Angles between long axis of upper incisor to SN plane and palatal plane, Angle between long axis of lower incisor and mandibular plane using lateral cephalometric xray
angular and vertical linear effects on first molars	up to 6 months	For the first molars: Angular measurements between the long axis of the measuring jigs and the palatal plane and mandibular plane for the upper and lower molars, respectively. Vertical measurements: perpendicular vertical distance from the measuring jigs to the palatal and mandibular planes for the upper and lower molars, respectively, using lateral cephalometric xray.

Secondary Outcome Measures

Name	Time	Method
change in the SN' to Mandibular plane angle	up to 6 months	measuring the change in the angle between SN' to Mandibular plane angle, using lateral cephalometric xray
change in the palatal to Mandibular plane angle	up to 6 months	measuring the change in the angle between the palatal to Mandibular plane angle, using lateral cephalometric xray
change in the Anterior facial height	up to 6 months	measuring the change in the vertical distance between Nasion and Menton, using lateral cephalometric x-ray.

Trial Locations

Locations (1)

Alexandria faculty of Dentistry; 🇪🇬 Alexandria, Egypt