Final answer:
Oral problems like dental caries arise from bacterial overgrowth due to poor dental hygiene, causing the erosion of tooth enamel. Proper oral care is essential for overall health, preventing malnutrition and more severe health issues.
Step-by-step explanation:
We experience many problems with our teeth due to the presence of oral bacteria such as Streptococcus and Actinomyces species. Insufficient dental hygiene can lead to overgrowth of these bacteria, resulting in dental diseases such as dental caries (cavities), tartar, and gingivitis. The enamel, while offering protection, is vulnerable to bacterial acids that degrade its calcium crystals. The release of these acids is due to the fermentation of sugars by bacteria, forming a harmful biofilm known as plaque. Without proper oral care, plaque can calcify into tartar, further exacerbating oral health issues. A healthy mouth is critical not just for dental health but also for overall health, as poor oral condition can lead to malnutrition and exacerbate other health issues, especially in the elderly and those with serious illnesses.