[GROUP 1: Components] - Palatal Acrylic with bite plate - Modified Adams clasps on first premolars - Labial bow across incisors - Finger springs against first molars - Springs apply about 100 to 125g of force to the molars after activation

[GROUP 2: Advantages] - Patient friendly - Continuous forces to the teeth - Possible asymmetric distalization of the molars

[GROUP 3: Disadvantages] - Tipping of molar teeth (instead of translation) - Loss of anchorage where the overjet increases - High pull headgear can be used to avoid tipping - Overcorrection of molar distalization by 2mm or more recommended - Addition of finger springs to 2nd molars can help prevent anchorage loss

[GROUP 4: Related Concepts] - List of Orthodontic Functional Appliances - List of palatal expanders - Molar distalization - Pendulum appliance - Herbert I. Margolis

[GROUP 5: References] - Dietz, Victor S.; Gianelly, Anthony A. (2000-06-01). Molar distalization with the acrylic cervical occipital appliance. - Warren, David W. (1992-02-01). Clinical application of the ACCO appliance. Part 1. - Warren, David W. (1992). Clinical application of the ACCO appliance. Part II. - The ACCO Appliance - Journal of Clinical Orthodontics. - Retrieved from https://en.wikipedia.org/w/index.php?title=ACCO_appliance&oldid=1190475225