SS DD 13m Occlusal view of treatment progression 13 months, 16 months and 18 months. F(29m) RR FF 2y 16m EE post-retention TT HH 18m GG 4y 5m post-retention VV Final occlusal photos at debonding after 29 months, 2 year post-retention and 4 year 5 months post-retention views. “The F(29m) II 2y post-retention LL 4y 5m post-retention OO PP QQ Final views of completed case after 29 months, 2 years and 4 year 5 months. MM NN JJ KK coordinated arch development will coordinate the tooth movements of both arches in all three dimensions.” EE O DD 4y 5m post-reten tion FF GG AA BB CC Occlusal and views of intial and 4 year 5 month post-retention comparison. 42 July/August 2010 JAOS XX YY ZZ WW UU