disease second common cause tooth loss second dental caries scotland twice daily brushing flossing way help prevent periodontal diseases healthy gingiva described stippled pale coral pink caucasian people various degrees pigmentation races gingival margin located cemento enamel junction without presence pathology gingival pocket tooth gingival deeper mm considered healthy also absence bleeding gentle probing ref name highfield healthy gingiva periodontal diseases
Applied science Medicine and health Dentistry Periodontics