Abstract
Objective: To assess the skeleto-dental changes in adult Class II Division 1 patients with average mandibular plane angle after camouflage orthodontic treatment by premolars extraction.
 Materials and Method: Total 30 adult female patients, aged between 20-40 years with Class II Division 1 malocclusion with average mandibular plane angle (Mp-SN: 30-38) were selected for the study. Pre-treatment and post-treatment cephalographs were traced and different measurements are derived from skeletal and dental landmarks. Statistical analysis was done by paired t-test using SPSS software version 16.00.
 Results: SNA, SNB and ANB angles were reduced significantly. The maxillary length was also decreased significantly. However mandibular dimension was not changed significantly after camouflage treatment. The upper and lower incisors were significantly intruded whereas upper molar was slightly intruded and lower molar was significantly extruded. Antero-posteriorly, incisors were retracted significantly. Upper molars had negligible mesial movement however lower molars had moved mesially with statistical significance.
 Conclusion: During camouflage treatment care should be taken on incisor retraction. The vertical control of the molar teeth is important during the treatment period to avoid worsening of the facial proportion.
Highlights
Class II malocclusion or disto-occlusion is the second most common malocclusion in the world
Though the growth modification of the skeletal malocclusion is somehow possible in adolescents, the comprehensive orthodontic treatment of Class II Division 1 malocclusion in adults are routinely carried out by camouflage treatment
The antero-posterior position of the upper molar is not changed after treatment
Summary
Class II malocclusion or disto-occlusion is the second most common malocclusion in the world. Pre-Tweed era was almost dominated by non-extraction philosophy propagated by his mentor Sir E.H. Angle. Angle thought that if teeth were placed in proper occlusion, the bone will grow in the new position of teeth and will be stabilised eventually. Though this hypothesis was so convincing during Angle time, it is invalid now. Later Tweed and Begg philosophy influenced the orthodontic world during the mid and late twentieth century so much that extraction treatment was regular cook book for most of the orthodontists. At present non-extraction trend is on its extreme end. At present fuller profile is preferred than straight or flat profile preferred in the past sixties or seventies decade.[4]
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