Class II Div 1 Malocclusion Clinical Trial
Official title:
A Comparative Evaluation of Root Resorption Using CBCT, Patients and Orthodontists Perceptions in Class II Division I Malocclusion With Bilateral Extraction of Maxillary First Premolar vs Full Arch Distalization : A Randomized Clinical Trial
Rationale: Class II Division 1 malocclusion is characterized by upper anterior teeth protrusion resulting in upper lip protrusion and convex facial profile, which are considered esthetically unfavorable. Treatment of class II malocclusion due to maxillary protrusion can be done with bilateral maxillary first premolar extraction followed by en-masse retraction of upper anterior teeth using mini implants placed between maxillary 2nd premolar & 1st molar. Treatment of class II malocclusion due to maxillary protrusion without premolar extraction frequently requires distalization of maxillary molars into Class I molar relation by means of extra-oral or intraoral forces. Absolute skeletal anchorage, available 24 hours a day is an alternative method for molar distalization. Zygomatic miniplates fixed at a distance from the root apices, allows distalization of entire dentition as there is no interference between the fixation device and roots of the teeth. Aims and Objectives: To quantify root resorption seen with bilateral extraction of maxillary first premolars (followed by en - masse retraction of anterior teeth) vs full arch distalization with zygomatic miniplates in Class II Division I malocclusion. Method of study: Patients will be allocated randomly to 2 groups-G1 and G2. Patients in G1 will undergo bilateral maxillary 1st premolar extraction before bonding followed by leveling & alignment. Maxillary arch will be stabilized with the help of 0.019"×0.025" stainless steel wire. Hooks will be soldered on archwire used for stabilizing dentition. Mini implants will be placed under local anaesthesia between maxillary 2nd premolar & 1st molar. Ni-Ti closed coil spring will be used to apply a force for en masse retraction of maxillary anterior teeth . In G2, treatment will be initiated by bonding 0.022" slot MBT preadjusted edgewise appliance. Maxillary arch will be stabilized with the help of 0.019"×0.025" stainless steel wire. Zygomatic miniplates will be placed bilaterally. Hooks will be soldered on archwire used for stabilizing dentition. Ni-Ti closed coil spring will be used to apply a force .
Status | Recruiting |
Enrollment | 30 |
Est. completion date | December 15, 2022 |
Est. primary completion date | November 30, 2022 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Non growing patients - Complete bilateral Class II molar relationship at pre-treatment - All permanent teeth upto the second molars should be present - No or minor crowding in the maxillary arch - Horizontal to average growth pattern. Exclusion Criteria: - Subjects with a history of fixed orthodontic treatment. - Crossbite - Vertical growth pattern - Any systemic disease affecting bone and general growth - Poor oral hygiene - Cleft patients - Patients who fail to follow up or undergo complete treatment |
Country | Name | City | State |
---|---|---|---|
India | Sonal Chowdhary | Rohtak | Haryana |
Lead Sponsor | Collaborator |
---|---|
Postgraduate Institute of Dental Sciences Rohtak |
India,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | 1.To quantify root resorption seen with bilateral extraction of maxillary first premolars (followed by en-masse retraction of anterior teeth) vs maxillary full arch distalization using zygomatic miniplates in Class II division 1 malocclusion. | pre treatment and post treatment cbct has been assessed to measure the root resorption of maxillary teeth in millimetres 2. To compare both patients' and orthodontist's perceptions of treatment being done in both the groups. | 34 MONTHS | |
Secondary | patient and orthodontist perception | patient and orthodontist perception in both the groups has been evaluated using Visual Analogue Scale | 34 months |
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT03279042 -
Effectiveness of Two Corticotomy Techniques in Retracting the Upper Anterior Teeth by Using Miniscrews
|
N/A | |
Completed |
NCT04202016 -
The Rate of Space Closure With Piezocision-based Corticotomy in Different Facial Types: A Split-mouth Design
|
N/A |