*Corresponding Author: Dr. Farah Khan, Reader, Career Institute of Dental Sciences & Hospital, Lucknow, Uttar Pradesh, India. Email: farahkhan.doc@gmail.com
Background: Ambient temperature is one of the important factors affecting the setting of glass ionomer cements (GICs) when used as a luting agent for cementation. This in vitro study was planned to evaluate the effect of ambient room temperature on film thickness of GI luting agent.
Materials and Methods: According to ADA specification no. 8 for film thickness, the glass ionomer cement was mixed and placed between two glass plates of 2 cm² surface area and a load of 15 kg was applied for 10 minutes. The space between the two glass plates was measured with a magnifying lens of metallurgical microscope with an accuracy of 10x. Each test was performed for 10 times at each temperature. The difference between the space of the glass plates with or without cement was considered as film thickness. Each test was performed for 10 times under three ambient temperatures conditions, viz. 16°C ± 2°C (Group I), 24°C ± 2°C (Group II) and 34°C ± 2°C (Group III). Data was analyzed using SPSS 20.0 software. Kruskal-Wallis test followed by Mann-Whitney U test was used to analyze the data.
Results: Mean film thickness of Groups I, II and III was 16.92 ± 0.75 µm, 24.52 ± 0.71 µm and 26.78 ± 0.46 µm respectively. Inter-group and between-group differences were statistically significant (p < 0.05).
Conclusion: With increasing ambient temperature, film thickness of GI luting agent showed a significant increase. Further studies to recognize optimal temperature conditions are recommended.
Keywords: Glass ionomer luting agent, film thickness, ambient temperature, setting.
How to cite this article: Khan F, Faraz A, Monis M, Mishra S, Singh PK, Agarwal SK, Singhal R. Effect of ambient temperature on the film thickness of glass ionomer luting agent: an in-vitro study. Int J Drug Deliv Technol. 2026;16(3s): 854-859; DOI: 10.25258/ijddt.16.3s.103
Source of support: Nil.
Conflict of interest: None