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A study on the imaging of complex furcation forms in upper and lower molars
Author(s) -
Plagmann HansChristian,
Holtorf Sven,
Kocher Thomas
Publication year - 2000
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1034/j.1600-051x.2000.027012926.x
Subject(s) - molar , dentistry , mandibular second molar , orthodontics , furcation defect , medicine
Background, aims: The form of the molar roots and their furcated region influence both the pathogenesis of periodontal destruction and therapeutic attempts. Method: Using a specially‐constructed measuring device, 359 1st and 2nd molars, both upper and lower, were analysed 3‐dimensionally. The parameters measured were horizontal furcation concavity, height of root trunk, degree of root taper, the distance between the root prominences adjacent to the furcation entrances and the angle of root separation. Results: The mean horizontal furcation concavity in lower molars was 0.5 mm at a distance of 1 mm apical to the cemento‐enamel‐junction (CEJ) and 3 mm at the distance of 4 mm apical to the CEJ. The angle of root separation was between 16° (lower jaw molars lingual) and 29° (upper jaw molars distal). The vertical distance from root separation to CEJ averaged 3.3 mm in lower jaw molars and 4.8 mm in upper jaw molars. Conclusions: Our findings underline the variability of furcation morphology.