A40-year-old man has been diagnosed with seizure 2 years ago, and an MRI of the brain revealed no structural lesions. She was started on phenytoin 4 since then. He is doing well with controlled seizure symptoms. On routine physical examination, you notice the findings shown in the photo below. 
Which of the following is most likely responsible for the condition of this patient's teeth and gums?
Definitions:
Anti-Trust Lawsuits
Anti-trust lawsuits are legal actions undertaken to address and prevent business practices that reduce or restrict competition in the market.
Local Monopoly
A situation where a single company or entity exclusively supplies a product or service in a specific geographic area, facing no competition.
CEO Pay
The compensation awarded to the Chief Executive Officer of a company, which may include salary, bonuses, shares, and other benefits.
Ratio
A quantitative relationship between two numbers showing how many times the first number contains the second.
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