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

Alexandria University23 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Anterior Openbite

Interventions

Extrusion archDEVICE

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

Eligibility

Sex: ALLMin age: 17 YearsMax age: 30 Years

Medical Language ↔ Plain English

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.

Locations (1)

Alexandria faculty of Dentistry

Alexandria, Egypt

Outcomes

Primary Outcomes

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

Time frame: 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.

Time frame: up to 6 months

Secondary Outcomes

change in the SN' to Mandibular plane angle

measuring the change in the angle between SN' to Mandibular plane angle, using lateral cephalometric xray

Time frame: up to 6 months

change in the palatal to Mandibular plane angle

measuring the change in the angle between the palatal to Mandibular plane angle, using lateral cephalometric xray

Time frame: up to 6 months

change in the Anterior facial height

measuring the change in the vertical distance between Nasion and Menton, using lateral cephalometric x-ray.

Time frame: up to 6 months

Data from ClinicalTrials.gov

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