Gum Disease Treatment Periodontal (gum) disease is insidious. It is an infection of the gums that starts out as plaque, an opaque film on the teeth that hardens to form tartar. ARESTIN® ARESTIN® (minocycline hydrochloride) Microspheres, 1 mg is an effective antibiotic treatment for periodontal disease that comes in powder form. Occlusal Adjustment An occlusal adjustment corrects the alignment of the bite, that is a result of loose, shifting, crowded, or missing teeth. Biopsy and Oral Cancer Screening The role of a biopsy in the dental industry is to diagnose oral cancer. In these instances, a brush biopsy is used to identify oral lesions that warrant further attention.