[Fractured tooth roots and abutment preparation. Clinical studies on molar teeth].
D000328:Adult; D000368:Aged; D000044:Dental Abutments; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar / Q000293:injuries*; D011176:Post and Core Technique; D014082:Tooth Fractures / Q000175:diagnosis / Q000517:prevention & control / Q000628:therapy*