A meta-analysis is the process of summarizing data and analyzing data from multiple studies that support or oppose a research hypothesis. The result of the analysis is a pooled estimate, which is often given in odds ratios (ORs) and 95% confidence intervals. The authors of a new study found that people who drink alcohol have different oral microbiotas than nondrinkers. They also tend to have fewer good bacteria, such as Lactobacillales, and higher levels of certain bad bacteria. Preventative care, or prophylaxis as it is commonly known, involves taking steps to prevent diseases, injuries, and other health problems before they become serious issues. These measures may be simple or complex, but they are often more effective and less expensive than trying to treat a condition when it is at an advanced stage. The dental industry is no exception to this rule. As a matter of fact, the best way to keep your teeth healthy is through good dental hygiene and regular visits with your dentist.