Final answer:
The ethical dilemma Dental caused was misleading investors by not disclosing its aggressive tax strategies, affecting investment decisions and leading to a loss of trust and financial loss for investors once higher tax liabilities were revealed.
Step-by-step explanation:
The core ethical dilemma caused by Dental by failing to disclose the aggressive tax positions in 2007 involves misleading investors and potential stockholders about the company's financial stability and integrity. When investing, stakeholders rely on the effective tax rates reported by the company for making informed decisions. A lower effective tax rate may signal better management and greater profitability, leading to increased investment not founded on the company's actual financial health if aggressive and potentially illicit tax strategies are employed.
Dental's choice to not fully disclose its tax strategies and the subsequent IRS investigation leading to a higher tax rate than originally reported compromised the trust between the company and its investors. The ethical conflict here is rooted in issues of transparency and honesty. As the investigation unfolds and the true tax liabilities are disclosed, the lowered confidence among investors results in significant financial loss, which was exemplified by the nosedive in Dental's stock price. Such incidents underscore the importance of ethical practices in tax planning and the responsibility companies have to report accurately to stakeholders.