Incisal Rest Seats
Posted on 04/11/2012
Incisal rests are designed into the incisal edge of anterior teeth most commonly found on mandibular frameworks. This design is increasingly unpopular with patients due to the exposure of metal in the smile line. It is rarely ever used on the maxillary and used sparingly on the mandibular. The only real indication for incisal rests are situations where an elderly patient has worn down the incisal edge and created a recess suitable for an incisal rest. In such a case, it is usually advantageous to take advantage of such a recess rather than preparing a separate rest seat on natural tooth.
The preparation specifications for incisal rests include:
1. Use of a tapered diamond stone or carbide bur
2. Extend over the incisal edge of the tooth
3. Preparation should be 1.0 to 1.5mm deep and 1.5mm wide
4. Should be located 1 to 2mm medial or to the medial or distal corner of the tooth
*Portions of this post were adapted from the book: Atlas of Removable Partial denture Design by Dr. Russell J. Stratton and Dr. Frank J. Wiebelt published by Quintessence Publishing Co., Inc. in 1988.
The preparation specifications for incisal rests include:
1. Use of a tapered diamond stone or carbide bur
2. Extend over the incisal edge of the tooth
3. Preparation should be 1.0 to 1.5mm deep and 1.5mm wide
4. Should be located 1 to 2mm medial or to the medial or distal corner of the tooth
*Portions of this post were adapted from the book: Atlas of Removable Partial denture Design by Dr. Russell J. Stratton and Dr. Frank J. Wiebelt published by Quintessence Publishing Co., Inc. in 1988.
