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All Journal Denta: Jurnal Kedokteran Gigi
Paulus Budi Teguh
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Dentistry

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The Difference of Surface Roughness of Heat Cured Acrylic Resin After Brushing with 30% and 60% Lemongrass Extract in Pasta Clarissa Valerie Wardojo; Paulus Budi Teguh; Linda Rochyani
Denta Journal Kedokteran Gigi Vol 13 No 1 (2019): Februari
Publisher : Fakultas Kedokteran Gigi Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/denta.v13i1.178

Abstract

Background: Tooth loss can be replaced by the use of dentures. Cleaning of dentures by brushing using toothpaste can cause surface roughness because of abrasive materials. The use of toothpaste can be replaced with paste of extract Cymbopogon citratus because it has antibacterial and antifungal effects. Purpose: to determine the effect of brushing using paste of extract Cymbopogon citratus on the surface roughness of heat cured acrylic resin. Methods: Sample were heat cured acrylic resin (62.5 x 10 x 2.5) mm, divided into 4 groups consist of negative control group was brushed with basic paste, positive control group was brushed with herb paste, and two groups were brushed with paste of Cymbopogon citratus extract with 30% and 60% concentrations. Brushing was done for 3 minutes with 60 brushing times and then measured with surface roughness tester. The data was processed by ANOVA test. Result: The average surface roughness in K-, K+, P1, and P2 were 0,1217, 0,3433, 0,1633, and 0,27 μm. There was significant difference between negative control group and positive control group; negative control group with P1 and P2 group; positive control group with P1 and P2 group; P1 group with P2 group (P <0.05). Conclusion: The paste of Cymbopogon citratus extract concentration of 30% was effectively used because the level of surface roughness below the maximum limit of recommended surface roughness of dentistry material which is 0,2 μm. The 60% concentration paste of Cymbopogon citratus extract was less effective because the level of surface roughness above the maximum limit of surface roughness is recommended.
The Effect of Pineapple Peel Extract As a Denture Cleanser on Flexural Strength of Nylon Thermoplastic Denture Base Materials Paulus Budi Teguh; Oka Lestari; Chaterina Diyah Nanik
Denta Journal Kedokteran Gigi Vol 16 No 2 (2022): Agustus
Publisher : Fakultas Kedokteran Gigi Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/denta.v16i2.8

Abstract

Background: Nylon thermoplastic has been widely used as denture base material because of its esthetic property, high flexibility, and flexural strength. It is very important to maintain the removable dentures’ cleanliness, which is frequently done with the chemical technique by immersing the denture in a solution. The composition of malic acid and citric acid from pineapple peel extract has antibacterial and antifungal properties, so it can be used not only as a denture cleanser but also affect the flexural strength of denture base material. Objective: To determine the effect of pineapple peel extract as a denture cleanser on the flexural strength of nylon thermoplastic denture base material. Method: This is experimental laboratory research with a post-test-only group design using 36 samples, namely 18 Valplast samples and 18 Lucitone FRS measuring 64mm X 10mm X 2.5mm divided into 4 groups (Valplast control, Valplast experiment, Lucitone FRS control, and Lucitone FRS experiment). The samples were treated by immersing them in sterile distilled water as control, and in 3.5% pineapple peel extract for 15 minutes 3 times a day for 10 days as treatment. Flexural strength measurement using Universal Testing Machine. The data obtained were analyzed by the One Way ANOVA test. Result: There was a decrease in flexural strength in the Valplast and Lucitone FRS groups immersed in 3.5% pineapple peel extract. Lucitone FRS groups had higher flexural strength than Valplast’s. Conclusion: There is a decrease in flexural strength of nylon thermoplastic denture base after being immersed in 3.5% pineapple peel extract.  
Co-Authors Chaterina Diyah Nanik Clarissa Valerie Wardojo Linda Rochyani Oka Lestari