We performed our evaluation in this study using a new type of double metallic plate for the adhesion splint method. The new type of double metalic plate was compared with a conventional mesh veneer plate, testing it for durability. In addition, this plate was considered for satisfactory biocompatibility. Several clinical cases using these plates were conducted. Results were as follows: 1. A new type of double metallic plate and a conventional mesh veneer plate of the same thicknesses were measured for tensile adhesive strength and shear bond strength. The strengths of both were nearly equal. 2. Water-resistance of this plate was satisfactory after long-term observation of immersion and concussion in a physiological saline solution. 3. This plate is composed of an Au-Pd-Ag alloy and was satisfactorily alloy biocompatible. 4. The fact that several periodontal patients had no trouble seemed to be attributable to this plate. Also, after setting these plates in the oral cavity of several patients, the level of plaque control was shown to be satisfactory. These results suggest that the new type of double metallic plate is useful for clinical application
