Chapter 7: Diet, Hygiene, and Everyday Preventive Care

Alongside monitoring and habit management, everyday oral hygiene and dietary habits during the mixed-dentition years lay the groundwork for a healthy bite and smoother orthodontic treatment later, whether or not that treatment ends up being needed.

Nutrition and Jaw Development

There is growing interest among dental researchers in the relationship between diet — specifically, how much chewing effort a child's typical diet requires — and jaw development. Diets consisting mostly of very soft, minimally-chewed foods may provide less stimulation for healthy jaw growth compared to diets that regularly include foods requiring sustained chewing, such as raw vegetables, fruit, and other fibrous foods, though this remains an active area of research rather than a settled clinical guideline.

Everyday Hygiene During the Mixed-Dentition Years

Good hygiene during these years isn't just about avoiding cavities — untreated decay or early tooth loss is itself one of the most common preventable causes of later crowding and space problems.