A safety lancet was developed in this study. The development process consists of a conceptual design, mock-up tests, performance evaluation, verification, validation for medical device certification and mass production preparation. It is designed as a single unit which makes it possible to use more convenient. It is also designed as disposable product which cannot be reused or recycled structurally. The developed safety lancet can prevent the secondary infection by needle stick injury or reuse. Biocompatibility and physico-chemical characteristics were passed in KTL(Korea Testing Laboratory). Validation of gamma sterilization of packing materials was passed in professional company for mass production.

Florid cemento-osseous dysplasia (FCOD) is benign and exhibits multifocal involvement of tooth-bearing areas of the jaw. Initially, the lesions are radiolucent but become mixed. In late stages, the lesions change into a radiopaque mass with a thin radiolucent rim. Most FCOD cases are asymptomatic, and conservative treatment is recommended. However, surgical intervention is necessary in secondary infected cases. Because of hypovascularity, infected lesions are difficult to manage and do not respond to antibiotic medications. This clinical report describes the treatment of secondary infection of an FCOD lesion with both conservative and surgical interventions.