Shape reproducibility of retentive devices made of cast titanium.

IF 1.9 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Dental materials journal Pub Date : 2024-10-30 DOI:10.4012/dmj.2024-122
Kaori Kiuchi, Hiroyasu Koizumi, Hideyuki Imai, Takayuki Yoneyama, Lu Sun, Guang Hong
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Abstract

This study aimed to evaluate the shape reproducibility of retentive devices made of cast titanium. Retention beads were placed on wax patterns for frameworks of composite resin-veneered restoration using four bead adhesives. The wax patterns were invested in the magnesia-based material and titanium was cast using two different casting machines. The percentage of reproduced retentive devices were evaluated using imaging software. Cast specimens were sliced and concavity was evaluated. The contact angle between the wax surface and adhesives was determined with a contact angle meter. The reproducibility of retentive devices was not influenced by the type of adhesive for both machines. Reproducibility, however, was better for castings fabricated by a one-chamber machine with the use of two adhesives. Although the contact angle to wax material of adhesives varied considerably, reproducibility and concavity of retentive devices of titanium castings were guaranteed with the combination of two machines and four bead adhesives.

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钛铸件固定装置的形状再现性。
本研究旨在评估由钛铸造而成的固位装置的形状再现性。使用四种固位珠粘合剂将固位珠置于复合树脂衬底修复体框架的蜡型上。在镁基材料中注入蜡型,并使用两种不同的铸造机铸造钛。使用成像软件评估了再现固位装置的百分比。对浇铸的试样进行切片并评估凹度。使用接触角测量仪测定蜡表面与粘合剂之间的接触角。两台机器的留置装置再现性均不受粘合剂类型的影响。然而,使用两种粘合剂的单室机器制造的铸件的重现性更好。虽然粘合剂与蜡材料的接触角差别很大,但结合使用两台机器和四种珠状粘合剂,钛铸件保持装置的再现性和凹度得到了保证。
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来源期刊
Dental materials journal
Dental materials journal 医学-材料科学:生物材料
CiteScore
4.60
自引率
4.00%
发文量
102
审稿时长
3 months
期刊介绍: Dental Materials Journal is a peer review journal published by the Japanese Society for Dental Materials and Devises aiming to introduce the progress of the basic and applied sciences in dental materials and biomaterials. The dental materials-related clinical science and instrumental technologies are also within the scope of this journal. The materials dealt include synthetic polymers, ceramics, metals and tissue-derived biomaterials. Forefront dental materials and biomaterials used in developing filed, such as tissue engineering, bioengineering and artificial intelligence, are positively considered for the review as well. Recent acceptance rate of the submitted manuscript in the journal is around 30%.
期刊最新文献
Effects of repetitive insertion/removal and occlusal load on the retentive force of rest plate-I bar clasps made by selective laser melting. Shape reproducibility of retentive devices made of cast titanium. Bond strength of 4META-MMA-TBB resin to a CAD/CAM composite resin block and analysis of acetone-insoluble cured resin residues at adhesive interfaces. Effect of rosmarinic acid on microtensile bond strength of 1-step self-etch adhesive on artificial caries-affected dentine with or without NaOCl treatment: An in-vitro study. Rheological properties and handling characteristics of four injectable calcium hydroxide pastes.
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