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The introduction of intraosseous screws as temporary orthodontic anchorage devices has proved successful in achieving sufficient molar distalization without major anchorage loss in Class II malocclusions. Bone-anchored pendulum appliance is used to obtain an effective and compliance-free molar distalization without anchorage loss.  Aims And Objectives: This prospective study was designed to evaluate and compare the skeletal and dentoalveolar effects produced by 2 types of pendulum appliance with different anchorage modalities - the Bone anchored pendulum appliance (BAPA) and Conventional pendulum appliance (CPA) in subjects with Angle's ClassII malocclusion.  Materials and Methods: BAPA group consisted of 5 patients with mean age, 16.4±1.5 years. The CPA group consisted of 5 patients with mean age, 16.6±1.1 years. Lateral cephalograms &amp; dental casts were obtained at pre-treatment stage &amp; after achieving Class I molar relation. Dentoalveolar, skeletal, soft tissue measurements and dental cast measurement were recorded &amp; compared between the groups.  Results and Conclusions: Successful distalization was achieved in both groups in a mean period of 6.2 months for BAPA and 5.2 months for CPA. It was concluded that, both theBAPA and CPA were effective for the distalization of maxillary molars. Though the distal molar movements obtained were similar between the BAPA and the CPA groups, anchorage loss was observed with the CPA in the form of premolar mesialization &amp; incisor proclination, whereas absence of anchorage loss, significant spontaneous distal premolar movement, and distal incisor movement was observed with the BAPA, making it a viable choice compared to the CPA.

Comparative Distalization Effects Of Conventional Pendulum Appliance And Bone Anchored Pendulum Appliance