Bimaxillary Protrusion Clinical Trial
Official title:
Evaluation of the Anchorage Loss During En-masse Retraction in Orthodontic Patients With Maxillary Protrusion Using Friction Versus Frictionless Mechanics: A Randomized Clinical Trial
Verified date | June 2021 |
Source | Future University in Egypt |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
There is scarcity in literature regarding the effectiveness of friction and frictionless mechanics during ''En-masse retraction''technique on anchorage loss of posterior segment in orthodontic patients with maxillary protrusion. Moreover there is deficiency in studies measuring the patient pain and satisfaction regarding the different techniques of retraction. The aim of the current study is to evaluate the effects of friction versus frictionless mechanics, implemented during "En-masse retraction", on anchorage loss. Additionally, assessment of both techniques regarding their rates, effects on root resorption as well as patient satisfaction.
Status | Active, not recruiting |
Enrollment | 30 |
Est. completion date | January 29, 2022 |
Est. primary completion date | January 29, 2022 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 14 Years to 24 Years |
Eligibility | Inclusion Criteria: 1. Orthodontic patients (both genders) 2. Age range (14-24) 3. Patients requiring 1st premolars extraction followed by ''En-masse retraction'' (Bimaxillary Protrusion or Class II division 1 cases). 4. Patients with fully erupted permanent teeth (not necessarily including the 3rd molar). 5. Cases requiring maximum anchorage during anterior segment retraction. 6. Cases with minimal crowding (2-3) mm Exclusion Criteria: 1. Patients suffering from any systemic diseases interfering with tooth movement. 2. Patients with extracted or missing permanent teeth. (except for third molars). 3. Patients with badly decayed teeth. 4. Patients with any parafunctional habits (i.e. Bruxism, tongue thrusting, mouth breathing, etc....). 5. Patients with previous orthodontic treatment |
Country | Name | City | State |
---|---|---|---|
Egypt | Amr Attia | Cairo | Future University In Egypt |
Lead Sponsor | Collaborator |
---|---|
Future University in Egypt |
Egypt,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Anchorage loss | Digitally scanned dental models taken pre and post completion of retraction will be measured by identifying landmarks and reference lines and planes ( measured in mm ) | from pre to post retraction/intervention ( an average of 6-8 months ) | |
Secondary | Retraction Rate | The antero-posterior movement of anterior teeth and first molars will be assessed by measuring the digitally scanned dental models taken of the patients monthly ( measured in mm ) | from pre to post retraction/intervention ( an average of 6-8 months ) | |
Secondary | Molar Rotation | Digitally scanned dental models that are taken before and after retraction will be assess the rotation of the maxillary first permanent molar in relation to a reference line ( measurement of the angles in degrees ) | from pre to post retraction/intervention ( an average of 6-8 months ) | |
Secondary | Pain of Intervention | each patient will fill a questionnaire regarding his treatment experience in a Visual Analog Scale (VAS) scoring from 1-10 by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" on the left end (0 cm) of the scale and the "worst pain" on the right end of the scale (10 cm). The question-naire will include several questions related to oral hygiene, pain and discomfort experienced throughout the trial. | from pre to post retraction/intervention ( an average of 6-8 months ) | |
Secondary | Anterior teeth extrusion/intrusion | The principle investigator will examine pre and post Cone Beam CT ( CBCT ) in Relation to lines and reference planes ( measured in mm ) | from pre to post retraction/intervention ( an average of 6-8 months ) | |
Secondary | Anterior teeth torque | The principle investigator will examine pre and post Cone Beam CT ( CBCT ) in Relation to lines and reference planes ( measured in degrees ) | from pre to post retraction/intervention ( an average of 6-8 months ) | |
Secondary | Anterior teeth tip | The principle investigator will examine pre and post Cone Beam CT ( CBCT ) in Relation to lines and reference planes ( measured in degrees ) | from pre to post retraction/intervention ( an average of 6-8 months ) |
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