Specialists in Orthodontics for Children and Adults
Phoenix Orthodontist
Litchfield Park Orthodontist
Phoenix Orthodontic Anchorage Requirements
One of the biggest challenges to Phoenix orthodontists is trying to move certain teeth while maintaining the position of others. The father of modern Phoenix orthodontics, Edward H. Angle discussed this problem nearly 100 years ago, “According to the well-known law of physics, action and reaction are equal and opposite, hence it must follow that the resistance of Phoenix orthodontic anchorage must be greater than that offered by the tooth to be moved, otherwise there will be displacement of the Phoenix orthodontic anchorage and failure in the movement of the teeth to the extent, or, possibly, in the direction desired. The sources at our disposal for securing Phoenix orthodontic anchorage or resistance are, first, the teeth themselves, and second, sources external to the teeth, and Phoenix orthodontic anchorages may be classified as simple, stationary, reciprocal, intermaxillary and occipital” (Angle, 1907). To date, Phoenix orthodontists have largely relied on these modalities to preserve Phoenix orthodontic anchorage.
Phoenix Orthodontic Anchorage
Newton’s third law of motion states that for every action there is an equal and opposite reaction. There are many situations in Phoenix orthodontics, however, where this equal and opposite reaction is not desired. Some common Phoenix orthodontic treatment goals where these reciprocal forces are of particular concern include:
In order to determine the acceptable level of reciprocal movement, Phoenix orthodontic anchorage requirements are considered for each case. For extraction cases, Phoenix orthodontic anchorage requirements have been divided into three classifications (Nanda, 1997):
In order to best meet the objectives of a given case, Phoenix orthodontists have developed multiple methods of mechanical Phoenix orthodontic anchorage, each with advantages and disadvantages. These Phoenix orthodontic anchorage methods include: 1) extraoral appliances, 2) Phoenix dental anchorage, 3) intraoral appliances, and most recently 4) osseointegrated and Phoenix dental implant-associated appliances.

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Arizona Dental Association