[Table/Fig-11]:

Detailed features of distalizing appliances (Jones Jig, Lokar distalizer and Carrière distalizer).

Jones Jig (Compressed Coil Device)	Lokar distalizer	Carrière distalizer
Modified Nance appliance
Introduced by Jones RD and White JM in 1992 [4]	Introduced by Scott in 1992 [2]	Introduced by Carrière L in 2004 [6]
It will be attached to the first premolars or 1° second molars with heavy round wire and a light wire projecting through molar tube, afterwards both wires will be soldered to a fixed attachment sheath and hook.	Used for distalizing an upper molar includes a main support shaft disposed in the arch wire receptacle of a molar tooth bracket.	Used for distalizing an upper molar & made up of mold-injected, nickel-free stainless steel. It is bonded to the canine and first molar.
70-75 gm of force can be delivered through activation of an open coil spring which results in 1 mm of anterior movement and 2.5-2.8 mm of molar distalization.	Slide shaft extending from the main shaft supports a slide collar which is tied via a tensile ligature to the bracket of a 2° tooth, such as a premolar. Compression spring is disposed between the slide collar and the slide shaft and is prevented from buckling by a centrally extending guide pin. The guide pin is attached at one end to the slide collar and the other end passes through a guide tube extending rigidly from the slide shaft. A mesial support ligature extends between the slide collar and an arch wire to prevent inadvertent dislocation of the appliance.	The canine pad, which allows distal movement of the canine along the alveolar ridge without tipping, provides a hook for the attachment of Class II elastics. This pad is the mesial end of an arm that runs posteriorly over the two upper premolars in a slight curve. The posterior end of the arm is a permanently attached ball that articulates in a socket on the molar pad.
Mavropoulos A et al., also noted the treatment results with a mean distal movement of 1.4 mm, increased overjet by 0.9 mm and decreased overbite by 1 mm without any significant changes in facial height [5].
Disadvantage- it breaks easily under the oral stresses.