当前位置： SCI文献检索 > JOURNAL OF ENDODONTICS期刊下所有文献 > Proximity of Vascular Bone Channel in the Lateral Sinus Wall to Root Apices of Maxillary First Molars: A Cone-beam Computed Tomographic Analysis.

Proximity of Vascular Bone Channel in the Lateral Sinus Wall to Root Apices of Maxillary First Molars: A Cone-beam Computed Tomographic Analysis.

Abstract：

INTRODUCTION:Apical surgery is frequently indicated in maxillary first molars. Occasionally, a vascular anastomosis in the lateral maxillary sinus wall can be observed during surgery. The aim of this study was to examine the distance between the vascular bone channel (VBC) and the root apices of maxillary first molars using cone-beam computed tomographic imaging. METHODS:Cone-beam computed tomographic images of 104 maxillary first molars were oriented in the coronal plane to evaluate the distance between the roots and the VBC. The measurements were only recorded in relation to the buccal roots. In addition, demographic parameters and further measurements such as the diameter of the VBC and the proximity to the periapical pathology were evaluated. RESULTS:A total of 210 VBCs were assessed. The mean distance from the VBC to the apices of the buccal roots of the maxillary first molars was 6.18 mm ± 3.84 mm. The VBC was mostly located intrasinusally (74.3%) and only rarely superficially (0.5%). The diameter of the VBC was on average 0.88 ± 0.32 mm. CONCLUSIONS:In this study, the VBC was usually found closer to the mesiobuccal than to the distobuccal root apex. During preparation of the access window, the existence of the VBC should be kept in mind because the mesiobuccal roots of maxillary first molars undergo apical surgery to the buccally positioned roots only.

journal_name

J Endod

journal_title

Journal of endodontics

authors

Bischof FM,Bornstein MM,Suter VGA,Lello RIE,von Arx T

doi

10.1016/j.joen.2019.09.004

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

1472-1478

issue

12

eissn

0099-2399

issn

1878-3554

pii

S0099-2399(19)30660-0

journal_volume

45

pub_type

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