This study aims to compare the clinical evaluation and patients' satisfaction of space maintainers produced by digital workflow using the 3D-printing method (3D-SMs) versus conventional band and loop space maintainers (C-SMs) produced by traditional methods.
Lower first permanent molar in active state of eruption
Patient and parent showing cooperation and compliance.
Medically free children.
According to space analysis available space is less than or equal to needed space
Children with previous allergies to stainless steel.
There was less than one year left for the permanent tooth to erupt (to prevent possible abutment toot loss)
The patient's oral hygiene is not sufficient and has periodontal problems (to accurately assess the periodontal effects)