Giancotti F, Pachì F, Cozza P, Sciarretta M G
Università degli Studi di Roma "Tor Vergata".
Prev Assist Dent. 1990 Jul-Aug;16(4):6-10.
The maintaining of the space during mixed dentition, allows the patient to obtain a good occlusion, the right growth and facial development. The orthodontist can preserve the space, using simple appliances like the lip bumper and the lingual arch.