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

NCT04901221 | Completed

• 1 other identifier: Extrusionarchadults
• Study Type: interventional
• Target: 23
• Locations: 1 country
• Sites: 1

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.

Conditions

Anterior Openbite

Outcome Measures

Primary Outcomes (2)

• angular and vertical linear effects on incisors

  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

  up to 6 months

• angular and vertical linear effects on first molars

  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.

  up to 6 months

Secondary Outcomes (3)

• change in the SN' to Mandibular plane angle

  up to 6 months

• change in the palatal to Mandibular plane angle

  up to 6 months

• change in the Anterior facial height

  up to 6 months

Study Arms (1)

Extrusion arch

EXPERIMENTAL

Hand made stainless steel extrusion arch wire (0.016x0.22")

Device: Extrusion arch

Interventions

Extrusion arch DEVICE

one couple force system is applied; a custom-made extrusion wire from 0.016x0.022 stainless steel wire with helical bends placed 2-5 mm mesial to the molar tube placed in the upper and lower arches and tied distal to the lateral incisors

Extrusion arch

Eligibility Criteria

• Age: 17 Years - 30 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

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

You may not qualify if:

• 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.

Sponsors & Collaborators

• Alexandria University: lead

Study Sites (1)

Alexandria faculty of Dentistry

Alexandria, 21527, Egypt

Location

Study Officials

• Tasneem Y Hammad, BDS

  Alexandria University

  PRINCIPAL INVESTIGATOR

• Hanan Ismail, PHD

  Alexandria University

  STUDY DIRECTOR

• Wessam Marzouk, PHD

  Alexandria University

  STUDY CHAIR

• Hassan Moussa, PHD

  Alexandria University

  STUDY CHAIR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Demonstrator of orthodontics

Study Record Dates

• First Submitted: May 20, 2021
• First Posted: May 25, 2021
• Study Start: April 1, 2019
• Primary Completion: April 20, 2021
• Study Completion: May 1, 2021
• Last Updated: July 15, 2022

Record last verified: 2022-07

Locations

EG (1)