A randomized clinical trial comparing the acceptance of conventional and prefabricated band and loop space maintainers in children with premature loss of primary molar

Objectives: To evaluate and compare the acceptance, comfort, chairside time, and clinical outcomes of conventional and prefabricated band and loop space maintainers in children with premature loss of primary molars. Methods: Sixty children aged 4–8 years were randomly allocated into two groups: conventional band and loop space maintainer (CBLSM) and prefabricated band and loop space maintainer (PBLSM). Clinical procedures were performed by a single operator. Patient acceptance was evaluated after six months using a five-point Likert scale. Chairside time, space loss, gingival index, plaque index, and SEM (Sound, Eye, Motor) scale scores were recorded and statistically analyzed. Results: Both appliances showed comparable acceptance after six months with no statistically significant difference (p > 0.05). Mild discomfort was reported by 40% in CBLSM and 46.6% in PBLSM groups. Mean chairside time was significantly lower in the conventional group (14.12 ± 3.90 minutes) compared to the prefabricated group (19.96 ± 5.55 minutes). Space loss was significant over six months, while gingival index differences were not statistically significant. Conclusions: Both conventional and prefabricated space maintainers demonstrated similar patient acceptance and comfort; however, conventional appliances required less chairside time.