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9. Effects of Different Mediums on the Surface Topography and Corrosion of Dental Implant Abutment

Ayesha Tariq Niaz1, Ali Dad Chandio2, Amynah Charania3, Shafaq Saeed Roghay4, Khusbu Lohana4 and Zaeem Arif Abbasi1

ABSTRACT

Objective: To compare the effect of artificial saliva, carbonic drink and gutka extracts on the surface topography, corrosion kinetics and hardness of dental implant abutment.

Study Design: In-vitro experimental study

Place and Duration of Study: This study was conducted at the NED University of Engineering & Technology and Karachi University from January 2019 to October 2019.

Materials and Methods: Abutments were tested for chemical composition, hardness, surface topography, characterization of microstructural constituents and weight loss/gain at 6 and 12-weeks by atomic absorption spectroscopy and electron dispersive spectroscopy.

Results: Electron dispersive spectroscopy showed significant Aluminum (Al) loss in the carbonic sample at 6 weeks’ period (p<0.05). However, at 12 weeks, significant loss of Al ion (p<0.05) in carbonic drink and loss of Titanium (Ti) and Vanadium (V) (p<0.05) in gutka extract was observed. In atomic absorption spectroscopy after 6-weeks, gutka extracts showed significant rise in Ti (p<0.05) and Al (p<0.001) levels, whereas, in artificial saliva and carbonic drink, only the levels of V were found to be statistically significant.

Conclusion: Changes in surface topography and level of corrosion in dental implant abutments were found significant. Gutka extracts showed highest level of degradation and dissolution among all the mediums.

Key Words: Titanium alloy, artificial saliva, carbonic drink, gutka, corrosion, dental implant, abutments.

Citation of article: Niaz AT, Chandio AD, Charania A, Roghay SS, Lohana K, Abbasi ZA. Effects of Different Mediums on the Surface Topography and Corrosion of Dental Implant Abutment. Med Forum 2022;33(7):36-40.