Abstract
Submandibular sialolithias is is a common case, but in chiidren it is rare. We reported a case of mandibular sialolithiasis, and examined the salivary calculus.
The results indicated maturity of the salivary calculus.
The posterior portion of the duct was the most mature, and anterior portion of the duct was semi mature. The middle portion of the duct was the most inmature.
The posterior portion of the duct formed rapidly. The secondary portion was anterior portion of the duct. The last portion was the middle portion of the duct.
