Hi BryanV21,
I brush my dogs teeth, provide chews (never bones) and like you thought that the idea that “dry diets are better for teeth” was a long stretch. But I came across some interesting publications looking at this issue and I find that I need to alter my beliefs. Certainly I don’t think that dry food equates with a healthy mouth, and maybe the overall health significance between dry fed and wet fed pets may not be great, but it looks like there is some basis to “the myth”
“Even after adjustment for age, the mean oral health index was significantly higher in cats and dogs fed soft food compared with those fed dry or mixed food, and the mean oral health index was significantly higher in cats and dogs fed mixed food than in those fed dry food. These results indicate that feeding a dry food diet has a positive influence on oral health, decreasing the occurrence of mandibular lymphadenopathy, dental deposits, and periodontal disease in cats and dogs.”
http://jn.nutrition.org/content/136/7/2021S.long
