Furcation groove of buccal root of maxillary first premolars - A morphometric study

Citation
A. Tamse et al., Furcation groove of buccal root of maxillary first premolars - A morphometric study, J ENDODONT, 26(6), 2000, pp. 359-363
Citations number
17
Categorie Soggetti
Dentistry/Oral Surgery & Medicine
Journal title
JOURNAL OF ENDODONTICS
ISSN journal
00992399 → ACNP
Volume
26
Issue
6
Year of publication
2000
Pages
359 - 363
Database
ISI
SICI code
0099-2399(200006)26:6<359:FGOBRO>2.0.ZU;2-X
Abstract
Furcation grooves on the palatal aspect of the buccal roots of 35 maxillary first premolars, randomly selected, were assessed and found to exist in 97 % of the sample. The buccal roots were sectioned into slices, 1 mm thick, a nd morphometric horizontal and vertical measurements were taken by a Toolma ker Microscope. The slice with the deepest invaginations served as the refe rence plane. The deepest invaginations were found to be at a mean distance of 1.18 mm from the bifurcation, with a mean depth of 0.4 mm, The canal had a kidney-shaped appearance in cross-section, and the mean distance from th e invagination to the canal wall was 0.81 mm. It is thus hazardous to use r otary instruments for flaring these roots and any circular-shaped post spac e preparation at this level is contraindicated, The outcome of such procedu res might be root thinning, perforation, or vertical root fracture, thus ca using a poor prognosis.