User blog comment:Kaido King of the Beasts/Chapter 844: Always a Dump Guy/@comment-24850639-20161027162929/@comment-53539-20161028144206

Its just a visual representation like when Choppers antlers jumped off his head due to shock. Luffy's been seen to loose teeth before.

@Avery D. North - Exactly! Zoro doesn't tend to mess around. Not only that, but as with Ussop, Zoro hasn't been the only one to tell it straight. He has in the past stepped in and told Luffy want he has to hear - even though it could hurt to do as Zoro suggests. The guys is stupid, but he isn't an idiot.

Also with Sanji being so strong its not like he could really push Sanji to do what he isn't prepared to do. Also despite all other things, Sanji still "betrayed" Luffy by fighting him and putting Luffy in his place, at the end of the day he. Zoro would put Sanji by now in the same spot as Ussop.