A comparative evaluation of compressive strength of conventional glass ionomer cement and a new hybrid restorative material giomer | [Pakistan Oral and Dental Journal • 2023]

Author(s):

1. MUHAMMAD YOUSUF ALI: Department, Karachi Medical & Dental College, Pakistan

2. ABDUR REHMAN: Department, Hamdard University Dental Hospital, Hamdard University Karachi., Pakistan

3. AFFAN AHMAD: Department, Karachi Medical & Dental College., Pakistan

4. DANISH MUZAFFAR: Faculty of Dentistry, SEGi University, Kota Damansara, Selangor, Malaysia

5. NADEEM HAFEEZ KHOKHAR: Department, Hamdard University Dental Hospital, Hamdard University Karachi, Pakistan

6. SYED JUNAID MEHMOOD: Applied Chemistry Research Center (ACRC), PCSIR Laboratories Complex, Karachi, Pakistan

7. SAIMA IMAD: Applied Chemistry Research Centre (ACRC) PCSIR Laboratories Complex, Karachi, Pakistan

8. SOFIA ALVI: Applied Chemistry Research Centre (ACRC) PCSIR Laboratories Complex, Karachi, Pakistan

Abstract:

The primary objective of this study was to investigate the effects of different beverages on the compressive strengths of 2 restorative materials; GIOMER and GIC. Although during mastication multiple forces act on the restoration materials i.e. compression, flexure strength, and tension, compression was chosen because it dominates them. Compressive strength has shown to be superior in predicting mechanical properties in stress-bearing situations. The materials used were GIOMER (Beautifil II) and GIC. A total of 54 samples each of GIOMER and GIC were made. 18 controls each of GIOMER and GIC were made. The samples were divided into 3 groups and then immersed into one of three media (coffee, orange juice, and distilled water) for 24 hours. UTM was used to calculate the compressive strength of all the materials. It was found that the compressive strength of Giomer was greater than GIC (61.1 Mpa vs 14.3 Mpa). Immersion in orange juice caused a noticable decrease in the compressive strengths of both GIOMER (61.1 Mpa vs 39.8 Mpa) and GIC samples (14.3 Mpa vs 10.3 Mpa). Within the constraints of this study, it can be concluded that orange juice due to the presence of acetic acid, causes greater damage in the mechanical properties of both GIOMER and GIC. Other solutions used don't change compressive strength significantly in GIOMER samples. Due to post hardening mechanism, the compressive strength of GIC samples can be increased after immersion.

Page(s): 87-92

DOI: DOI not available

Published: Journal: Pakistan Oral and Dental Journal, Volume: 43, Issue: 2, Year: 2023

Keywords:

Compressive Strength , coffee , Glass Ionomer Cement GIC , Distilled water , Orange juice , Restorative Material , Giomer

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