Flexible arm splints in the control of a Lesch-Nyhan victim's finger biting and a profoundly retarded client's finger sucking.

Flexible arm splints permit the control of hand-to-mouth contacts without restricting range of motion. In the present study they effectively suppressed the self-injurious finger biting of a child with Lesch-Nyhan disease and a profoundly retarded client's stereotypic finger sucking. They appear to offer an easily applied and much less restrictive alternative to the soft-tie and tubular arm restraints in common use.