title: [1 years' observation of the periodontal region around the mandibular first molar and the instruments used in its treatment. Restoration with satisfactory prognosis].
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008963:Molar; D010482:Periapical Abscess / Q000628:therapy*; D010518:Periodontitis / Q000628:therapy*; D011176:Post and Core Technique; D011379:Prognosis; D012390:Root Canal Therapy / Q000295:instrumentation* / Q000379:methods