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G&H G4™ Nickel Titanium Open Coil Springs - 15mm
G4™ Nickel Titanium Open Coil Springs - 15mm Open coil springs sized in 15mm lengths with inside diameter of .036 designed for opening spaces up to 15mm. Compresses to 3mm. Package of 10 springs The unique G4™ Nickel Titanium alloy developed by G&H® is precision formed into closed coil springs. G4™ Springs provide consistent force and remain active until the space is closed. Consistent force values and full recovery are both routinely achieved with G4™ NiTi Springs - and also G4™ NiTi Archwires.
http://www.eksenmedikal.com.tr/g-h-g4-nickel-titanium-open-coil-springs-15mm
GAC Open Coil Spring
Open, or compression, coils are 15mm in length when passive and may be compressed to 3mm. Between these points, the coil will exert 50 (extra light), 100 (light), 150 (medium), 200 (heavy), or 250 (extra heavy) , and 300 (XX Heavy) grams of force until 14mm, and then the force falls to 0 as it becomes passive again. No distortion will occur during movement. These low forces limit patient discomfort and ensure good circulation in the periodontal pocket during movement. Typically, you will see 4mm of space opened in three months (this varies depending on the age and health of the patient). To engage the open coils, mark the archwire where the mesial and distal tooth destinations are located. Crimp on the mesial stop and ligate the archwire up to the point where the spring is to be placed. Slide the coil over the archwire and crimp on the distal stops. Ligate the balance of the wire. Since the Sentalloy coil needs about 1/10 as much wire as steel, good hygiene is much easier, but do advise the patient to rinse and brush around the coil. No other adjustment is needed.
http://www.eksenmedikal.com.tr/open-coil-spring
GAC Sentalloy® Closed Coil Springs
Closing spaces with closed Sentalloy coil springs brings exceptional results. TWO DESIGNS ARE AVAILABLE: Two Eyelet Design: The initial length is 3mm unactivated (this does not include the eyelet lengths). These can be activated to 15mm without any deformation or change in force. No change in force will be seen as the coil contracts, reducing the space. To engage, slide over a molar hook and slowly stretch to the post on the cuspid bracket or a sliding hook on the archwire. Use a locking Mathieu plier on the widened platform of the eyelet. If you do not use the cuspid post, tie the archwire to the tooth you wish to move, slide on the sliding hook, then tie in the balance of the wire. Now engage the spring as above. For an eyelet with ligature wire, you have the option of hooking the eyelet on the molar, then activating the spring and tying it to the cuspid bracket with the .008” ligature wire. Should you wish to span an area greater than 15mm, measure the span first. Then place the coil on the molar hook and activate the coil 10mm. Tie the ligature wire to the bracket.
http://www.eksenmedikal.com.tr/gac-sentalloy-closed-coil-springs