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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Comparison of the Performance of a Triangular Chuck Locked Bur Turbine Assembly with the Traditional Circular Friction Lock Design

Abikhzer, Joel 20 November 2012 (has links)
Background: Chucks typically use a friction fit design to grip the circular shank of the bur. ProDrive Systems Inc. developed a triangular chuck locked bur. Objective: To compare speed, smoothness of cut, bur jams or breaks between the original circular(OEM) or ProDrive(PD) turbine assemblies. Materials and Methods: Kavo 635B, Star 430, and Midwest Tradition handpiece designs were tested on an Engineering Test Platform using Macor blocks. Sixty cuts were performed per handpiece, for a total of one hundred and eighty cuts per handpiece design. The cuts were photographed using a dissecting microscope. Statistical analysis was performed using ANOVA and Chi-squared tests. Results: No overall improvement in speed was seen, however individual handpiece variation was observed. The Kavo-PD broke less often than Kavo-OEM combination. No differences were noted from a bur jam standpoint. Conclusion: Our results do not support the claims made by ProDrive of being superior to the OEM chuck.
2

Comparison of the Performance of a Triangular Chuck Locked Bur Turbine Assembly with the Traditional Circular Friction Lock Design

Abikhzer, Joel 20 November 2012 (has links)
Background: Chucks typically use a friction fit design to grip the circular shank of the bur. ProDrive Systems Inc. developed a triangular chuck locked bur. Objective: To compare speed, smoothness of cut, bur jams or breaks between the original circular(OEM) or ProDrive(PD) turbine assemblies. Materials and Methods: Kavo 635B, Star 430, and Midwest Tradition handpiece designs were tested on an Engineering Test Platform using Macor blocks. Sixty cuts were performed per handpiece, for a total of one hundred and eighty cuts per handpiece design. The cuts were photographed using a dissecting microscope. Statistical analysis was performed using ANOVA and Chi-squared tests. Results: No overall improvement in speed was seen, however individual handpiece variation was observed. The Kavo-PD broke less often than Kavo-OEM combination. No differences were noted from a bur jam standpoint. Conclusion: Our results do not support the claims made by ProDrive of being superior to the OEM chuck.

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