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KMID : 0615219910160010319
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Journal of Kwangju Health
1991 Volume.16 No. 1 p.319 ~ p.325
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A study of mechanical bond strength of denture base retaining Minor Connector
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임동천/Lim DC
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Abstract
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The purpose of this study was to investigate the mechanical bond strength of denture base retaining minor connector.
In the minor connector, divided the retention form into three types.
After retention form fabricated with Co-Cr alloy, attached with paraffin wax block on the retention form of metal framework.
Mixed resin according to the manufacturer´s instruction, packed into plaster mold cavity with the resin. For testing, prepared a total of 27 specmens.
The crosshead speed for AUTOGRAPH tes machine was set at 5(??)/min and for measure mechanical bond strength of completed were loaded until fracture.
The results were as follows :
1. The mechanical bond strength in large mesh retention form showed 83.4 kg/cm(3) and stronger than the bond strength in small mesh retention form showed 53.7kg/cm(3) and stronger than the bond strengths of different types.
2. The mechanical bond strength in small mesh retention form showed 3.7kg/cm(3).
3. The mechanical bond strength in beads retention form showed 13.0kg/cm(3).
4. The mechanical bond strength between each of the retention forms was significant difference statistically(p〈0.001).
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