抄録
Purpose:In an attempt to evaluate osseointegration of an implant body, a comparison was done on the influence of differences in the material of the superstructure body, on the results of vibration analysis.
Materials and Methods:The measurement sample was a model in which a fixture had been implanted in super-hard plaster. A manufactured conical abutment (CA) and a gold UCLA abutment were placed in the top of the same metal frame. Then, a super porcelain AAA(PFM),Estenia(ES), and UNIFASTⅡ(UⅡ),manufactured for the superstructure body in the form of a mandibular small molar, was connected by torque according to the directions of the manufacturer. The conical abutment was then connected with the fixture. The sample in which the superstructure body was connected with the screw,was the CA. The sample in which the superstructore body was made, was connected with a screw using the gold UCLA abutment. To measure each sample, an acceleration sensor was installed on the side of the tongue. An FFT analyzer was used for Periotest measurement from the buccal side. Differences in torque for the various kinds of abutment were compared according to the influence exerted on the vibration in continuous time, and also in terms of peak frequency.
Results and Discussion:The CA was influenced by differences in the property of the superstructure body material, buffering the vibration resulting from a hammer. In the case of the UA, because an upper structure body was connected with the fixture directly, the vibration characteristics may have been influenced by differences in the property of the material.
