Your daily diet you are contributing a lot of calcium, which will generate a stronger and caries free denture. Remedy for healthy and strong teeth # 4: To consume grapes, since they are rich in malic acid, they favor the whitening of the teeth, and they avoid that they stain or that they discolour. Read also: Remedies for periodontitis or periodontal disease Remedy for healthy and strong teeth # 5: Eat raw vegetables. Carrot and radish, for example, clean teeth from leftover food; In addition, when eaten raw.