Wrigley is just over 5 months old and his breath has been TERRIBLE for the last few weeks, but starting about 3-4 weeks ago or so he started to loose teeth, I didn't really make the connection that it could be that. We did have his teeth brushed at the groomers the other day and we bought some stuff that you put in his water and that has helped a little..... of course right after his teeth brushing he went right for his bully stick haha.... thankfully this is the last smelly one! We bought some from someone from YT that aren't smelly