In 7-year-old patient; 74 and 85 are indicated for extraction; which of the following will be appropriate space maintainer for the child?

Band and loop space maintainer  Advantages Effective space maintainer for unilateral loss of single tooth in buccal segments. Economical to make and construct. Little chairside time, if preformed bands are used. Adjusts easily to accommodate the changing dentition. Reference: Pediatric Dentistry Principles and Practice SECOND EDITION, MS Muthu; pdf no 1012