Class II Div 2 Incisal Relationship
Conditions
Keywords
Class II division 2, Alignment, Leveling
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.
Interventions
DEVICEFixed appliance
Sponsors
Jordan University of Science and Technology
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Intervention model description
Randomized clinical trial
Eligibility
Sex/Gender
ALL
Age
17 Years to 26 Years
Healthy volunteers
Yes
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| Duration of treatment | 2 years | Measurements of time of treatment in months |
| Pain perception | 2 years | Using visual analogue scale. From 0 where is no pain to 10 with severe pain |
Countries
Jordan
Outcome results
None listed