Augmentation prosthesis fabricated with the use of a soft denture reliner as a functional impression material: A clinical report

Naomi Tanoue, DDS, PhD,(a) Shuichi Mori, DT,(b) and Hideo Matsumura, DDS, PhD(c)

(a)Prosthodontics, Department of General Dentistry and (b)Dental Laboratory Center, Nagasaki University Hospital of Dentistry, Nagasaki, and (c)Department of Crown and Bridge Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.

The objective of this case report is to describe a functional impression procedure for improvement of the sealing between a maxillary defect and an augmentation prosthesis. Three-step impression was implemented in the fabrication of the prosthesis. The primary impression was made for reproduction of dentition and palate, and the secondary impression was taken mainly for maxillary defect, using a combination of two silicone elastomeric materials. A slow-setting soft denture reliner was then used as a functional impression material under a loaded condition to facilitate palatal seal of the obturator. The patient recovered facial outline form, mastication, nasal respiration, and swallowing with the use of the augmentation prosthesis. The three-step impression technique including the final functional impression procedure is useful for sealing the interfacial gap between the movable oral tissue and the hard denture segment.
(Int Chin J Dent 2003; 3: 31-35.)

Key Words: augmentation, functional impression, soft denture reliner.