[(Semi-)precision attachments for cast metal frame removable partial dentures]

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When compared to a conventional attachment, a (semi)precision attachment for a cast metal frame removable partial denture can perform a number of functions better. Proper assessment of the condition of the abutment teeth is needed for an adequate indication. Selecting the type of (semi-)precision attachment is primarily determined by the available maxillomandibular space, the crown length as well as the possibility of adequate oral self-care. With regard to technical characteristics, (semi-)precision attachments are classified according to measures of freedom. The distinct types are cast intra- and extra-coronal, adhesive and overdenture (semi-)precision attachments. With the lapse of time, some wear of the different parts of an attachment may occur, requiring specific subsequent care. Whether or not in combination with oral implants, (semi-)precision attachments often offer patients improved self-confidence and self-image. However, the relatively high cost is a barrier to apply (semi-)precision attachments widely.