Shizukuishi, S [Clinical application of reflectance spectrophotometry for periodontal disease]. [electronic resource] - Shikai tenbo = Dental outlook Feb 1984 - 345-52 p. digital Publication Type: Journal Article Subjects--Topical Terms: ComputersGingival Hypertrophy--diagnosisHumansPeriodontal Diseases--diagnosisSpectrophotometry--instrumentation