Leonard Hirschfeld

Oral pigmentation and a method of removing it.

Abstract 1. 1. A simple method for removing certain types of melanin pigmentation from the anterior gingivae has been described. 2. 2. The incidence, histology, and physiology of such pigmentation has been discussed briefly.

Subgingival Curettage in Periodontal Treatment

In surgical prosthesis where stents are required in conjunction with surgery, the self-curing resin has made the use of modeling compound obsolete. A stent of resin is cleaner and stronger than one of modeling compound and can be worn by the patient without replacement as long as the surgeon desires. In maxillofacial prosthesis where a socalled permanent appliance is necessary, this technic enables it to be made in the operating room during the progress of the surgery. CONCLUSIONS