Skeleto-Dental Changes After Camouflage Treatment in Class II division 1 Adult Patients with Average Mandibular Plane Angle

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.