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Journal : ODONTO Dental Journal

THE EFFECT OF IMMERSION DURATION OF NON-DENTAL GLASS FIBER REINFORCED COMPOSITE IN ARTIFICIAL SALIVA ON TENSILE STRENGTH Hadianto, Eko; Santoso, Lyra Arnetta; Ratnawati, Irma Dewi; Suhartono, Budi
Odonto : Dental Journal Vol 11, No 2 (2024): December 2024
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.11.2.259-265

Abstract

Background: The type of fiber often used in dentistry is E-glass fiber, which has limited availability and relatively high prices. Non-dental glass fiber can be employed as an alternative in dentistry because its composition is nearly identical to E-glass fiber. Exposure of restorative materials to artificial saliva, designed to mimic the properties of normal human saliva, affects the mechanical properties of non dental glass fiber, including tensile strength. This research aims to determine the effect of immersion duration of non-dental glass fiber reinforced composite in artificial saliva on tensile strength.Method: The research method used is laboratory experimental analytic with a post-test only control group design. Samples are divided into three treatment groups with immersion in artificial saliva for three times (2, 7, and 14 days). Tensile strength is conducted using a Universal Testing Machine (UTM).Conclusion: The conclusion drawn from this research is that immersion duration in artificial saliva has a significant effect on tensile strength of non-dental glass fiber reinforced composite. The tensile strength of non-dental glass fiber reinforced composite after immersion for 14 days shows higher results compared to immersion for 7 and 2 days.
Differences in Orthodontic Thermal Deflection of Nickel Titanium Wire in Artificial Saliva Soat And Isotonic Beverages Suhartono, Budi; Yusuf, Moh; Aditya, Grahita; Wardhana, Erdianto Setya; Hadianto, Eko; Sa’adah, Fathimah Fitria
Odonto : Dental Journal Vol 12, No 1 (2025): April 2025
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.12.1.75-83

Abstract

Background: Deflection is one of the properties of the wire that can change if the environmental conditions in the oral cavity are acidic, caused by consuming isotonic drinks. This study aims to determine the difference in deflection of thermal nickel-titanium wire soaked in artificial saliva and isotonic drinks.Method: The type of research used was an in vitro experimental analytic study with a post-only control group design method. The sample used was 36 thermal nickel titanium wire (American Orthodontics) with a wire size of 0.016 inches and divided into 2 groups consisting of the artificial saliva group and the isotonic drink group. Soaking was carried out for 10.5 hours and stored in an incubator at 37oC, then a deflection test was carried out using a Universal Testing Machine. Analysis of the results was carried out using the Independent T-Test in each group after treatment.Result: The results of the study using the Independent T-Test showed a significant difference in the deflection value of the thermal nickel titanium wire in the artificial saliva group and the isotonic drink group of 0.000 (p<0.05).Conclusion: The conclusions obtained in this study indicate that thermal immersion of nickel-titanium wire in the artificial saliva group and the isotonic drink  group  affects  the  deflection  force  in  orthodontic  treatment.
The effect of non-dental glass fiber volume fraction on flexural strength of heat cured acrylic resin Hadianto, Eko; Woroprobosari, Niluh Ringga; Mujaddid, Muhammad Difa Althof
Odonto : Dental Journal Vol 9, No 2 (2022): December 2022
Publisher : Faculty of Dentistry, Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/odj.9.2.201-205

Abstract

Background: Heat-cured acrylic resin is a material that is often used for the manufacture of removable partial dentures in dentistry because it uses simple equipment, relatively inexpensive, and is easy to repair. Acrylic resin also has a disadvantage, such as the low value of flexural strength so that it can cause the denture to fracture. This study determine the effect of non-dental glass fiber volume fraction on the flexural strength of heat cured acrylic resin.Method: This research are post-test only control group design. Acrylic resins were divided into four groups (6 sample each group), group 1 without the addition of non-dental glass fiber or 0% and heat cured acrylic resin group with the addition of non-dental glass fiber 1%,2%, and 3% (group 2, 3 and 4).Result: The average flexural strength of acrylic resin with a volume fraction of 2% of non-dental glass fiber had the highest value compared to other groups. The results of the Mann-Whitney test from several test groups showed significant differences in the value of flexural strength from each group (p<0.05), except for the 0% and 3% group.Conclusion: There is an effect of volume fraction of non-dental glass fiber on the flexural strength of heat cured acrylic resin.