title: [Problems associated with abutment building and periodontal tissue--clinical cases].
mesh_terms: D000328:Adult; D000368:Aged; D003442:Crowns; D000044:Dental Abutments; D005260:Female; D005890:Gingivectomy; D005893:Gingivoplasty; D006801:Humans; D008297:Male; D008875:Middle Aged; D012390:Root Canal Therapy