抄録
Removable plates are widely used for various purposes in orthodontics. In order to accomplish the designed treatment objective, it is necessary to provide sufficient retention of the removable appliance. In this regard, clasps such as Adams, Schwarz, Arrowhead, Duyzing, Jackson, Crozat, ball, triangular, c and so on, have been developed. Furthermore, as much importance must be given to the level of comfort provided by the clasp as is given to its retentive property, particularly in appliances where long-term wear is essential. With regard to these two properties, proximal clasps render the greatest contribution through their high retentive capacity and ease of placement in the mouth. Hence, in spite of being developed originally for dentures, these clasps may be accommodated effectively in orthodontic appliances. In this paper, experiences acquired through practical application of proximal clasps are presented.
