Restorative Dentistry and Endodontics

The Korean Academy of Conservative Dentistry (대한치과보존학회)
권호 표지

RADIOGRAPHIC STUDY OF THE POSITION OF APICAL FORAMEN IN ENDODONTIC THERAPY.

근관치료시(根管治療時) 근단공(根端孔)의 위치(位置)에 관(關)한 X-선학적(線學的) 고찰(考察)

  • Lim, Sung-Sam (Dept. of Operative Dentistry, College of Dentistry S.N.U.)
  • 임성삼 (서울대학교 치과대학 보존학교실)
  • Published : 1979.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

The author observed thy actual position of apical foramen and the radiographic appearance of files when the files were filled through canals to the external surface of apical foramen in 280 canals of extracted teeth. All the teeth were radiographed by bisecting technic and once again Walton's projection was employed on mandibular molars. The results were as followings. 1. Sixty five percents of 280 canals were actually classed as having foramina deviant from true apex of root. 2. 160 of 280 canals(Fifty seven percents) appeared to be filled short of apex on the radiograph. 3. When Walton's projection was employed to open up two mesial canals of mandibular molars and compared to straight-on projection, twelve of 120 canals Ten percent appeared to be different in radiographic appearence.

Keywords