I want to preface this question saying you already told me about oral sex risk but I think this situation is a little bit different. I understand if you rather not answer. 

I am writing as a couple days ago I performed fellatio on my best friend. However, possibly a couple hours earlier I tripped and hurted my face, I noticed I was spitting blood and it eventually got a little better. I then went have some dinner. 

For this exposure, I don't recall him ejaculating (we were drunk, but I don't recall it happening). 

Next day I realized the wound was worse that I thought: I actually managed to unglue two braces, gum on one tooth was super swollen and lip was swollen too. From the dynamics and the scar tissue on my lip, it is clear I bit the lip, has a wound area on location and width of the two fallen braces. Cut was not deep as per my dentist, and I noticed 3 drops of blood in my pillow which was just after the fact, so it seems it was still bleeding albeit not that much. Pretty sure I would have tasted blood during the act, but I don't recall it. 

Is this a big risk for HIV given: My friend claims negative, I know for a fact he won't be lying me, but also can bet he has not tested. AFAIK my fried does not have sex with men, only reason to doubt is what happened, I don't think stats on hiv on straight men are that bad? I know you have talked about oral sex risk including smaller cuts, when you talk about significant wounds, would what I describe classify as such? 

Oral sex is oral sex is oral sex. I cannot imagine any differences from one exposure to the next that plausibly would increas HIV risk, including an injury afterwards.

We completed your previous thread with a warning about repeated anxiety driven questions on the same topic. This one is more of the same. Future ones about obviously zero risk situations (which include any and all oral sex events you may experience in the future) will, according to policy, be deleted without even this much reply. Thank you for your understanding.

You say no, and I believe it. 

Thanks!