Abstract
Aims: This study aimed to compare the effects of two different anchorage systems for molar distalization. Materials and Methods: The sample consisted of two groups, Buccal Coil spring with Nance button as anchorage and Buccal Coil spring with simulated Screw as anchorage. Upper typodont arch of class II division I was used and the appliances were activated to deliver 200 gram of distalization force. Pre and postoperative digital images were taken and analyzed using Autodesk AutoCAD software™. For each group seven parameters were measured and compared. A significance value of 0.05 was predetermined. Results: Significant difference was found between the two groups in the vertical change, tipping change of the first molar, vertical change, mesial movement of the first premolar. Insignificant difference in first molar rotation, molar distalization rate and premolar tipping change. Conclusions: Maxillary molar distalization with minimal effects on anchoring teeth, molar tipping and vertical position change could be achieved with Buccal Coil spring with Screw distalization appliance.
Highlights
INTRODUCTIONThe primary goal of orthodontic treatment is to achieve an 'ideal occlusion' that involves molars placement in class I relationship.[1]
MATERIALS AND METHODS The sample of this study was composed of 2 groups (Fig.1), Buccal Coil spring with Nance button for anchorage (BCN) and Buccal Coil spring with simulated Screw as indirect anchorage (BCS)
Palatal acrylic with metallic bar in the middle was constructed to give the support required for the distalization appliances by taking impression to the typodont model made stone cast for this model and fabrication of palatal acrylic using cold cure acrylic it was finished and polished
Summary
The primary goal of orthodontic treatment is to achieve an 'ideal occlusion' that involves molars placement in class I relationship.[1]. Conventional intraoral distal molar movement has relied mainly on a Nance button and the use of anterior teeth to reinforce anchorage when the maxillary first premolars are banded and connected to the acrylic plate with a retaining wire. These methods often achieve an acceptable result, anchorage loss is unavoidable and the mechanics are often difficult to control precisely. The purpose of this study is to compare and contrast the effects of two maxillary molar distalization methods with different anchorage systems (Buccal Coil spring with Nance button and Buccal Coil spring with simulated Screw as indirect anchorage)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
