Consuming excessive amounts of sugar can have a negative impact on oral health and contribute to a range of dental problems, including:

1. Tooth decay: The bacteria in the mouth feed on sugar and produce acid as a by product, which can erode the enamel of the teeth and lead to cavities.

2. Gum disease: Sugar consumption can also contribute to gum disease, as the bacteria in the mouth can irritate and inflame the gums, leading to infection and eventual tooth loss.

3. Acid erosion: Sugary and acidic drinks, such as soda and fruit juices, can also contribute to acid erosion of the teeth, which can lead to sensitivity, discoloration, and even tooth loss over time.

To maintain good oral health and prevent tooth decay and other dental problems, it's important to limit sugar consumption and practice good oral hygiene. This includes brushing the teeth twice a day, flossing daily, and visiting the dentist regularly for check-ups and cleanings. It's also a good idea to choose healthy, low-sugar snacks and drinks, such as fruits, vegetables, and water, instead of sugary or acidic options.