Effect of Mouthwash on Release of Elements from Dental Casting Alloys: An In-vitro Study
Published: September 1, 2022 | DOI: https://doi.org/10.7860/JCDR/2022/56602.16849
Shubha Joshi, Pronob Sanyal, Jyotsna Arun Patil
1. Reader, Department of Prosthodontics, School of Dental Sciences, KIMSDU, Raichur, Karnataka, India.
2. Professor and Head, Department of Prosthodontics, School of Dental Sciences, KIMSDU, Karad, Maharastra, India.
3. Associate Professor, Department of Biochemistry, KIMSDU, Karad, Maharashtra, India.
Correspondence
Shubha Joshi,
H. No. 1-9-12, Venkatagiri, Azadnagar, Karad, Maharashtra, India.
E-mail: drkamnoorshubha@gmail.com.
Introduction: Mouthwashes are regularly prescribed as a maintenance phase of treatment by the dentist. The pH of the mouthwash can enhance the elemental release from the cemented prosthesis.
Aim: To evaluate the effect of two types (Oral-B and Listerine) of mouthwashes on the release of elements from Nickel-Chromium (Ni-Cr) dental alloys.
Materials and Methods: An in-vitro comparative study was conducted in the Department of Prosthodontics, School of Dental Sciences, Karad, Maharashtra, India, from April 2018 to April 2022. A total of 90 crowns were fabricated using three different brands of dental casting alloys (DCA) using lost wax technique. The crowns were immersed into two different mouthwashes (Oral-B and Listerine) in polypropylene test tubes, and then incubated at 37°C to simulate the oral temperature for 1, 4, and 7 days. The leaching of the elements from the fabricated crowns into the mouthwashes was analysed using inductively coupled plasma mass spectrometry (ICP-MS). Data analysis was performed using the t test and repeated measure Analysis of Variance (ANOVA) followed by post hoc Dunnett Multiple Comparisons Test.
Results: The Ni and Cr levels in the mouthwashes were significantly elevated in brand I (Ruby, Japan Dentistry Products Pvt. Ltd.), brand II (Dentmark, R&D Impex International), and brand III (BEGO, GmbH & Co KG). Presence of Ni released from all the three brands of DCA in mouthwash over a period of 1, 4, and 7 days was detected to be in the range of 16 to 39.9 μg/L. Cr released from all the three brands of DCA in mouthwash over a period of 1, 4, and days was detected to be in the range of 10.3 to 42.8 μg/L.
Conclusion: The Ni and Cr were released in the mouthwash and the release increased with time. The acidic pH of Listerine adds to the increased release of Ni and Cr.
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