根管充填に関する基礎的研究 : その 1 規格型根充用ガッタパーチャポイントの測定検討

概要

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Measurements were taken of the diameter and length of each part of commercial guttapercha points of international standard of six companies (Kerr, Zipperer, Mynol, Maillefer, G-C, and Todent). The measurements were compared with the specifications in DIN Standard to determine the status of standardization. The results were as follows : 1. The total length specified in DIN Standard is 30mm. Mynol #35, G-C #25, and Maillefer #30 were longer and the others were shorter. Rather wide variations were seen in the total length and effective length between pins of the same specification of each company. 2. In the comparison of d_1 of the six companies with that of DIN Standard, Maillefer #15 and 30, Zipperer #15, and Mynol #25 were larger, and the others were smaller. Maillefer #15 and Zipperer #15 were larger than their respective #20. Mynol #25 and 30 were about the same in diameter. In d_2, Zipperer #15 and 20 were clearly reversed in diameter. 3. Todent's approximated the tapering specification of DIN Standard. Contrarily, Maillefer's were smallest. Kerr's and G-C's had the least variations in tapering.
九州歯科学会の論文
1981-09-25