Comparison Between 2 Protocols for the Treatment of Class II Division 2 Malocclusion

Not Applicable

Completed

• Conditions: Class II Div 2 Incisal Relationship

• Registration Number: NCT03833739
• Lead Sponsor: Jordan University of Science and Technology

Brief Summary

The aim of this prospective study was to compare between two different treatment modalities of class II division 2; to start treatment in upper arch first until adequate overjet is obtained or to start in the lower arch first with removable anterior bite plane in upper arch.

Detailed Description

Fifty four subjects with class II division 2 participated in this study. The subjects were randomly divided into two groups; Group one (28 patients): orthodontic treatment with upper arch bond up first and lower arch was bonded when 4 mm overjet was reached. The treatment continued until 0.019 x 0.025 " stainless steel wires were reached in both arches. Group 2 (26 patients): orthodontic treatment with lower arch bond up first with removable anterior bite plane in upper arch. When 0.019 x 0.025" stainless steel wire was reached, the upper arch was bonded. The treatment continued until 0.019 x 0.025" stainless steel wires were reached. Three cephalograms were taken for each patient in both groups; pretreatment (T0) , after bonding the other arch (T1) and at the end of leveling and alignment in both arches (T2). Cephalometric measurements and superimpositions were made. Skeletal and dentoalveolar treatment changes were compared within and between the 2 groups.

Study Timeline

• Study Start: 2016-06-01
• Primary Completion: 2018-01-01
• Study Completion: 2018-11-01
• Status Verified: 2019-02
• Study First Submitted: 2019-02-06
• Study First Submitted QC: 2019-02-06
• Study First Posted: 2019-02-07
• Last Update Submitted: 2019-02-20
• Last Update Posted: 2019-02-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 54

Inclusion Criteria

• Age ≥ 17 years and ≤ 26 years
• Class II division 2 malocclusion.
• Overjet (OJ) < 4 mm.
• Overbite (OB) covering more than half of the lower incisor height.
• Mild to moderate crowding with tooth contact displacement no more than 2 mm.
• Good oral hygiene and healthy periodontium.

Exclusion Criteria

• Systemic health problems and medications were taken.
• History of previous orthodontic treatment.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Upper and lower incisors proclination	2 years	Cephalometric analysis. Treatment changes in the values for upper and lower incisors in degrees, Upper incisor /Maxillary plane in degrees and lower incisors/Mandibular plane in degrees.

Secondary Outcome Measures

Name	Time	Method
Pain perception	2 years	Using visual analogue scale. From 0 where is no pain to 10 with severe pain
Duration of treatment	2 years	Measurements of time of treatment in months

Trial Locations

Locations (1)

Jordan University of Science and Technology Dental Teaching Clinics; 🇯🇴 Irbid, Jordan