Table 1:

Ideal requirements of space maintainer

Biocompatible material Maintenance of the mesiodistal dimension of the space Simple in construction Resistant to occlusal forces No interference or deviation of the normal eruption path of the successor Easily adjustable No interference in speech, mastication, or deglutition Cost-effective No food lodgement and easily cleanable No interference in normal growth and function Not exert excessive stress on adjoining tooth Restoration of the function as far as possible