hello and welcome,
as per your quiery it is clear that your front teeth are slightly protruded even before the accident.
that means yours is skeletal class-2 malocclusion
.this is due to the difference in occlusion of first molars compared to that of class-1 molar relation.
in class -1 molar relation,mesiobuccal cusp of maxillary 1st molar occlude with the buccal groove of mandibular first molar.
whereas in class-2 molar relation,disto-buccal cusp of maxillary first molar occlude with the buccal groove of mandibular first molar.
since you already have a prognathic maxilla,it cannot be solved permanently by this bridge.
if you need the normal alignment of teeth,you have to go for orthognathic surgery
so there is more chance of protrusion of bridge placed.
visit your dentist
and get the opinion.you should get an ortho-pantamo graph to see the skeletal growth of maxilla.