Modified Willet appliance: A case report

The preservation of deciduous teeth is essential until normal exfoliation. It plays an important role in preventive and interventional dentistry. Early loss of a deciduous tooth or teeth can have various consequences. Space maintainer of the intra-alveolar kind is advised when the deciduous second molar is lost before the eruption of the first permanent molar. This report discusses a modified Willet appliance in cases where loss of primary deciduous first and second molar occur prior to eruption of permanent mandibular first molar.