title: [Examination of periodontal tissue with an ultrasonic apparatus. Measurements of the thickness of gingiva, alveolar mucosa and alveolar bone].
mesh_terms: D000539:Alveolar Process / Q000033:anatomy & histology*; D005881:Gingiva / Q000033:anatomy & histology*; D006801:Humans; D009061:Mouth Mucosa / Q000033:anatomy & histology*; D010519:Periodontium / Q000033:anatomy & histology; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography