JOURNAL OF OSAKA DENTAL UNIVERSITY

Vol. 41 No. 2      OCTOBER - 2007

ISSN: 0475-2058      UBIC: 172

SUMMARY

We developed a method for placing functional dentures in rats. A replication denture core was prepared using a plaster model of the maxilla of the animal before its molars were extracted. A denture was then prepared by positioning the core to a model of maxilla after the teeth had been extracted, and pouring cast pattern resin into the gap. Denture function was evaluated by measuring masticatory performance using grains of raw rice, and by monitoring masseter electromyography during mastication. The results suggested that the dentures functioned efficiently during chewing, thus confirming the suit-ability of this maxillary denture model in rats. (J Osaka Dent Univ 2007 ; 41 : 161-167) Key words: Denture; Electromyography; Masseter muscle; Masticatory performance; Rat.

| Volver |