Comparison of Microhardness and Compressive Strength of Alkasite and Conventional Restorative Materials (Alkasite와 기존의 수복 재료의 압축강도 및 미세경도 비교)

Kunho Lee (이건호); Jong-Soo Kim (김종수); JISUN SHIN (신지선); HAN MI RAN (한미란)

doi:10.5933/JKAPD.2020.47.3.320

Comparison of Microhardness and Compressive Strength of Alkasite and Conventional Restorative Materials

Journal of the Korean academy of pediatric dentistry
Abbr : J Korean Acad Pediatr Dent
2020, 47(3), pp.320-326
DOI : 10.5933/JKAPD.2020.47.3.320
Publisher : The Korean Academy Of Pediatric Dentistry
Research Area : Medicine and Pharmacy > Dentistry
Received : April 8, 2020
Accepted : May 9, 2020
Published : August 31, 2020

Kunho Lee ¹, Jong-Soo Kim ², JISUN SHIN ², HAN MI RAN ²

¹단국대학교 치과대학 소아치과학교실
²단국대학교

Accredited

ABSTRACT

The aim of this study was to compare compressive strength and microhardness of recently introduced alkasite restorative materials with glass ionomer cement and flowable composite resin. For each material, 20 samples were prepared respectively for compressive strength and Vickers microhardness test. The compressive strength was measured with universal testing machine at crosshead speed of 1 mm/min. And microhardness was measured using Vickers Micro hardness testing machine under 500 g load and 10 seconds dwelling time at 1 hour, 1 day, 7 days, 14 days, 21 days and 35 days. The compressive strength was highest in composite resin, followed by alkasite, and glass ionomer cement. In microhardness test, composite resin, which had no change throughout experimental periods, showed highest microhardness in 1 hour, 1 day, and 7 days measurement. The glass ionomer cement showed increase in microhardness for 7 days and no difference was found with composite resin after 14 days measurement. For alkasite, maximum microhardness was measured on 14 days, but showed gradual decrease.

KEYWORDS

Alkasite, Composite resin, Glass ionomer cement, Compressive strength, Microhardness

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Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Comparison of Microhardness and Compressive Strength of Alkasite and Conventional Restorative Materials

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Citation status

* References for papers published after 2023 are currently being built.

Journal of the Korean academy of pediatric dentistry 2023 KCI Impact Factor : 0.48

Comparison of Microhardness and Compressive Strength of Alkasite and Conventional Restorative Materials

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KEYWORDS

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