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Impression materials and electrodeposits. Part II: Electrodeposits

J A Stackhouse

    The Journal of Prosthetic Dentistry
    |February 1, 1981
    PubMed
    Summary

    Six of thirteen substrate/electrodeposit combinations were successful. Results indicate that both impression material and electrodeposit influence die inaccuracy, contradicting theories of sole material dependence.

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    Area of Science:

    • Materials Science
    • Biomaterials Engineering
    • Electrochemistry

    Background:

    • Die inaccuracies in dental prosthetics can arise from various factors.
    • Understanding the interplay between substrate materials and electrodeposits is crucial for improving accuracy.

    Purpose of the Study:

    • To evaluate the success of different substrate/electrodeposit combinations for creating accurate dental dies.
    • To identify factors contributing to successful or unsuccessful electrodeposit formation.

    Main Methods:

    • Tested thirteen substrate/electrodeposit combinations.
    • Assessed completed electrodeposits for pitting, discoloration, stress, and dimensional accuracy.
    • Compared electrodeposit dimensions to the master die.

    Main Results:

    • Six combinations were successful; seven failed due to defects or high stress.
    • President/copper showed the largest dimensional difference.
    • Polyjel/nickel and Elasticon/nickel demonstrated minimal change from the master die.
    • Nickel electrodeposits showed no significant difference from the master die.

    Conclusions:

    • Both impression material and electrodeposit influence die inaccuracy.
    • Factors like substrate temperature and material properties affect electrodeposit dimensions.
    • Findings challenge the notion that only impression material causes die inaccuracy.

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