Dentigerous cysts (DCs), usually linked to unerupted teeth, are the second most common odontogenic cysts. However, synchronous DCs are rarely seen in children without syndromic conditions. This study reports two cases of male children with no systemic illnesses who showed multiple cystic lesions in the jaw. Conventional treatment typically involves enucleation and tooth extraction, which can lead to significant complications, including infection, nerve damage that may cause temporary or permanent numbness, damage to nearby teeth, and, in cases of large cysts, jaw fractures—potentially impacting the child’s quality of life. A conservative decompression method was used, employing custom-made tubes to keep communication between the cystic and oral cavities, thereby lowering intracystic pressure. This approach resulted in complete healing of the lesions and successful eruption of permanent teeth, while safeguarding vital anatomical structures and avoiding more invasive surgery, with an uneventful clinical course. Additionally, 3-year postoperative orthopantomograms are presented, showing complete resolution of the lesions with no recurrence. These results demonstrate the effectiveness of decompression in treating multiple dentigerous cysts in pediatric patients, highlighting its advantages in preserving oral function and aesthetics while reducing surgical risks.