[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
ACCO or Acrylic Cervical Occipital Anchorage is an appliance in field of orthodontics which is used for distalization of maxillary molars. This appliance is a removable type of appliance which was developed by Herbert I. Margolis. This appliance is intended to be worn 24 hours a day except during meals. It is one of the few removable appliances made for distalization of molars and thus require patient compliance for the treatment to be successful.
