| web | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4232036/ | 
| author | Prathibha Anand Nayak, Ullal Anand Nayak, and Vishal Khandelwal | 
| publication | Clin Cosmet Investig Dent | 
| date | 2014-11-10 | 
| web | Prathibha Anand Nayak, Ullal A... | Clin Cosmet Investig Dent | 2014-11-10 | 
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