Clinical trial NCT05492864: Correction of Anterior Open Bite With Skeletally Anchored Extrusion Arch
Official title: Correction of Anterior Open Bite With Skeletally Anchored Extrusion Arch
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Anterior Openbite Malocclusion
Lead sponsor: Mansoura University
Sponsor class: OTHER
First posted: 2022-08-09
Enrollment: 20
Sex: ALL
Minimum age (years): 12
Maximum age (years): 15
Standard ages: CHILD
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: This study will aim to evaluate the effect of skeletally anchored extrusion arch on the dentofacial structures in patients with anterior open bite (AOB).

Detailed description: This study will be a prospective clinical study. All the patients will be treated with 0.022 inch slot Roth metal brackets. Orthodontic bands will be cemented to the maxillary first molars. Both maxillary and mandibular teeth, will be sectionally leveled and aligned with superelastic Ni-Ti archwires.

A buccal stiff sectional wire from the first molar to the canine will be added for anchorage reinforcement. Extrusion will be done by inverting a 0.017 × 0.025-inch Connecticut intrusion archwire and inserting it in the molar auxiliary tubes upside-down and miniscrew will be tied to the molar bands to act as additional indirect anchorage.

Eligibility criteria: Inclusion Criteria:

1. Patients with a class I or a mild class II dental relationship.
2. All permanent teeth are erupted except the third molars.
3. Mild to moderate open bite is present.
4. Normal or minimally increased facial height.
5. Low lip line.
6. No or Mild crowding.

Exclusion Criteria:

1. Patients with skeletal open bite.
2. Posterior cross bite.
3. Trauma to the maxillary incisor.
4. Patients in need to extraction due to sever crowding.

Primary outcomes:
measure: Mean change in the overbite and overjet "Amount of open bite closure". -Measurements will be done on pretreatment and posttreatment digital study models in millimeters(mm)
timeFrame: one year
Secondary outcomes:
measure: Mean change in the Antero-posterior position of permanent maxillary first molar. -Measurements will be done on pretreatment and posttreatment digital study models in millimeters(mm)
timeFrame: one year
measure: Changes that occur in the dentoalveolar vertical development of the upper and lower anterior teeth. -Measurements will be done on pretreatment and posttreatment digital study models in millimeters(mm)
timeFrame: one year
measure: Changes that will occur in the upper and lower arch length, perimeter and intermolar width. -Measurements will be done on pretreatment and posttreatment digital study models in millimeters(mm)
timeFrame: one year
measure: Skeletal, dental and soft tissues changes . Measurements will be done on pretreatment and posttreatment lateral cephalometric radiographs in degree (°)
timeFrame: one year
measure: Skeletal, dental and soft tissues changes . Measurements will be done on pretreatment and posttreatment lateral cephalometric radiographs in millimeters (mm)
timeFrame: one year
measure: Change in the smile of the patients through measuring mean change in the lenght of the upper lip, amount of incisors and gum exposure. Measurements will be done on pretreatment and posttreatment photographs in millimeters (mm).
timeFrame: one year
measure: Stability of the treatment after 1, 2 and 3year(s) through measuring mean change in the overbite. Measurements will be done on digital study models in millimeters(mm)
timeFrame: Two year, three and four year.
Other outcomes:
Locations:
city: Mansoura
country: Egypt
facility: Faculty of dentistry, Mansoura University
state: El Dakahlia
Study officials:
References: