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All Journal SONDE (Sound of Dentistry) Interdental Jurnal Kedokteran Gigi (IJKG) MDJ (Makassar Dental Journal)
Sugianitri, Kadek
Departement Of Prosthodontics, Faculty Of Dentistry, Mahasaraswati University Denpasar, Denpasar, Indonesia
Biochemistry, Genetics & Molecular Biology Dentistry Health Professions Medicine & Pharmacology Public Health

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Journal : MDJ (Makassar Dental Journal)

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Addition of the leaf fiber of pineapple (Ananas comosus (L) Merr) to the impact strength test of heat cured acrylic resin: Penambahan serat daun nanas (Ananas comosus (L) Merr) pada uji kekuatan impak basis resin akrilik polimerisasi panas Ni Kadek Sugianitri; Suhendra
Makassar Dental Journal Vol. 10 No. 3 (2021): Volume 10 Issue 3 Desember 2021
Publisher : Makassar Dental Journal PDGI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35856/mdj.v10i3.449

Abstract

Heat cured acrylic resin is a dental material that widely used as removable denture base due to its biocompatible, easy to obtain, inexpensive and ease of processing but has a disadvantage of being fracture. The purpose of this study was to determine the diffe-ference in the impact strength test of the HCAR after adding pineapple leaf fibre. Post-test only control groups design was used as laboratory experimental. This research divided into 4 groups, those are without addition pineapple leaf fibres, addition of 5%, 10%, 15% pineapple leaf fibres. Impact strength was performed by charphy impact test. After getting the mean results of the im-pact test, the Kruskal Wallis test was then performed that showed that there is a significant difference between the group without addition pineapple leaf fibre and the group with the addition of pineapple leaf fibre a significance of p-value 0.001 (p<0.05). The plate without addition of pineapple leaf fibre, has a higher impact strength than the concentration of 5%, 10% and 15%. So it can be concluded that the addition of too high concentration pineapple leaf fibre causes the impact strength of the acrylic resin decreased.
Effectiveness of red betel leaf extract (piper crocatum) as a disinfectant based on removable dentures of thermoplastic nylon material: Efektivitas ekstrak daun sirih merah (piper crocatum) sebagai disinfektan basis gigi tiruan lepasan bahan nilon termoplastik Sapitri, Kadek Dwi Dessy; Sugianitri, Ni Kadek; Annutama
Makassar Dental Journal Vol. 14 No. 2 (2025): Volume 14 Issue 2 August 2025
Publisher : Makassar Dental Journal PDGI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35856/mdj.v14i2.1278

Abstract

Safe and effective natural alternative materials are needed, one of which is red betel leaf extract (Piper crocatum) or RBL which contains many active compounds that have antifungal effects. This study discusses the effectiveness of 10% and 20% concen-trations of RBL extract on the growth of Candida albicans colonies on thermoplastic nylon bases. A pure laboratory experimental study with a post-test only control group design was conducted using 9 samples of 1x1x0.2 cm thermoplastic nylon base soaked in C.albicans suspension for 24 hours, then grouped by extract concentration and soaked for 6 hours. Samples were grown on sa-bouraud dextrose agar media and incubated at 37°C for 24 hours. The number of colonies was determined with a colony coun-ter and analysed with Kruskal-Wallis and Mann-Whitney tests. The average number of colonies in aquadest group was 126, the 10% extract group was 28 colonies, while the 20% extract group had no colonies. It was concluded that the 20% RBL extract was most effective in killing C.albicans colonies. This effectiveness is obtained from the work of bioactive compounds in RBL that damage the walls and metabolism of fungal cells. The contact duration of 6 hours provides optimal time for penetration of active compounds to the surface of the material.
Co-Authors Annutama Kadek Dwi Dessy Sapitri Suhendra Suhendra