The bonded lingual retainer and multiple spacing of anterior teeth.

Retaining tooth positions after orthodontic space closure in cases with multiple spacing of anterior teeth are illustrated by selected cases with varying degrees of bimaxillary spacing initially (Figs. 1-6). In each case, bonded lingual retainers which allowed physiologic tooth movements were used with encouraging results. A meticulous technique for fabrication and bonding of flexible spiral wire retainers is mandatory for clinical success. Detailed recommendations are presented. If similar trials by others confirm the durability and effectiveness of acid-etched lingual retainers, it is expected that the technique can be recommended for routine clinical application.