Comparison of mesiodistal root angulation measured from conventional and CBCT derived panoramic radiographs in orthodontic patients

Ibrahim Nasseh, Douglas Jensen, Marcel E Noujeim

Research output: Contribution to journalArticle

Abstract

Introduction: Use of cone beam computed tomography (CBCT) in orthodontics is increasing; however, some patients started treatment with conventional images. The objective of this study is to manipulate CBCT panoramic reconstruction to make it comparable to conventional panoramic image and to compare mesiodistal root angulations on both images. Materials and Methods: Concurrent conventional panoramics and CBCT volumes were obtained from 40 subjects. CBCT volumes were manipulated to generate pan-like images that mimic the occlusal plane angle of the corresponding panoramic, allowing comparison of mesiodistal root angulations and determination of the head-tilt required to produce the reconstruction. Results: Clinically meaningful differences (p <. 05) in the mesiodistal root angulations between standard panoramics and CBCT reconstructions emerged for 13 out of 24 teeth (54%). Greatest variations were seen in the maxillary and mandibular sextants and in first molar regions. Ideal axial head-tilt for image acquisition was determined to be with Frankfort horizontal plane 3.3o nose down. Conclusion: CBCT pan images must be used with caution due to variation between methods in specific areas of arches. The images can be useful for the assessment of mesiodistal root angulations if the volume is properly manipulated to create a pan-like image.

Original languageEnglish (US)
Pages (from-to)338-349
Number of pages12
JournalOpen Dentistry Journal
Volume11
Issue numberSuppl-1, M2
DOIs
StatePublished - Jun 1 2017

Fingerprint

Cone-Beam Computed Tomography
Orthodontics
Head
Dental Occlusion
Nose
Tooth

Keywords

  • CBCT
  • Conventional images
  • Mesiodistal root
  • Pan-like images
  • Panoramic radiographs

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Comparison of mesiodistal root angulation measured from conventional and CBCT derived panoramic radiographs in orthodontic patients. / Nasseh, Ibrahim; Jensen, Douglas; Noujeim, Marcel E.

In: Open Dentistry Journal, Vol. 11, No. Suppl-1, M2, 01.06.2017, p. 338-349.

Research output: Contribution to journalArticle

Nasseh, Ibrahim ; Jensen, Douglas ; Noujeim, Marcel E. / Comparison of mesiodistal root angulation measured from conventional and CBCT derived panoramic radiographs in orthodontic patients. In: Open Dentistry Journal. 2017 ; Vol. 11, No. Suppl-1, M2. pp. 338-349.
@article{98b97dc0466f4a8ea0c2e00022107be6,
title = "Comparison of mesiodistal root angulation measured from conventional and CBCT derived panoramic radiographs in orthodontic patients",
abstract = "Introduction: Use of cone beam computed tomography (CBCT) in orthodontics is increasing; however, some patients started treatment with conventional images. The objective of this study is to manipulate CBCT panoramic reconstruction to make it comparable to conventional panoramic image and to compare mesiodistal root angulations on both images. Materials and Methods: Concurrent conventional panoramics and CBCT volumes were obtained from 40 subjects. CBCT volumes were manipulated to generate pan-like images that mimic the occlusal plane angle of the corresponding panoramic, allowing comparison of mesiodistal root angulations and determination of the head-tilt required to produce the reconstruction. Results: Clinically meaningful differences (p <. 05) in the mesiodistal root angulations between standard panoramics and CBCT reconstructions emerged for 13 out of 24 teeth (54{\%}). Greatest variations were seen in the maxillary and mandibular sextants and in first molar regions. Ideal axial head-tilt for image acquisition was determined to be with Frankfort horizontal plane 3.3o nose down. Conclusion: CBCT pan images must be used with caution due to variation between methods in specific areas of arches. The images can be useful for the assessment of mesiodistal root angulations if the volume is properly manipulated to create a pan-like image.",
keywords = "CBCT, Conventional images, Mesiodistal root, Pan-like images, Panoramic radiographs",
author = "Ibrahim Nasseh and Douglas Jensen and Noujeim, {Marcel E}",
year = "2017",
month = "6",
day = "1",
doi = "10.2174/1874210601711010338",
language = "English (US)",
volume = "11",
pages = "338--349",
journal = "Open Dentistry Journal",
issn = "1874-2106",
publisher = "Bentham Science Publishers",
number = "Suppl-1, M2",

}

TY - JOUR

T1 - Comparison of mesiodistal root angulation measured from conventional and CBCT derived panoramic radiographs in orthodontic patients

AU - Nasseh, Ibrahim

AU - Jensen, Douglas

AU - Noujeim, Marcel E

PY - 2017/6/1

Y1 - 2017/6/1

N2 - Introduction: Use of cone beam computed tomography (CBCT) in orthodontics is increasing; however, some patients started treatment with conventional images. The objective of this study is to manipulate CBCT panoramic reconstruction to make it comparable to conventional panoramic image and to compare mesiodistal root angulations on both images. Materials and Methods: Concurrent conventional panoramics and CBCT volumes were obtained from 40 subjects. CBCT volumes were manipulated to generate pan-like images that mimic the occlusal plane angle of the corresponding panoramic, allowing comparison of mesiodistal root angulations and determination of the head-tilt required to produce the reconstruction. Results: Clinically meaningful differences (p <. 05) in the mesiodistal root angulations between standard panoramics and CBCT reconstructions emerged for 13 out of 24 teeth (54%). Greatest variations were seen in the maxillary and mandibular sextants and in first molar regions. Ideal axial head-tilt for image acquisition was determined to be with Frankfort horizontal plane 3.3o nose down. Conclusion: CBCT pan images must be used with caution due to variation between methods in specific areas of arches. The images can be useful for the assessment of mesiodistal root angulations if the volume is properly manipulated to create a pan-like image.

AB - Introduction: Use of cone beam computed tomography (CBCT) in orthodontics is increasing; however, some patients started treatment with conventional images. The objective of this study is to manipulate CBCT panoramic reconstruction to make it comparable to conventional panoramic image and to compare mesiodistal root angulations on both images. Materials and Methods: Concurrent conventional panoramics and CBCT volumes were obtained from 40 subjects. CBCT volumes were manipulated to generate pan-like images that mimic the occlusal plane angle of the corresponding panoramic, allowing comparison of mesiodistal root angulations and determination of the head-tilt required to produce the reconstruction. Results: Clinically meaningful differences (p <. 05) in the mesiodistal root angulations between standard panoramics and CBCT reconstructions emerged for 13 out of 24 teeth (54%). Greatest variations were seen in the maxillary and mandibular sextants and in first molar regions. Ideal axial head-tilt for image acquisition was determined to be with Frankfort horizontal plane 3.3o nose down. Conclusion: CBCT pan images must be used with caution due to variation between methods in specific areas of arches. The images can be useful for the assessment of mesiodistal root angulations if the volume is properly manipulated to create a pan-like image.

KW - CBCT

KW - Conventional images

KW - Mesiodistal root

KW - Pan-like images

KW - Panoramic radiographs

UR - http://www.scopus.com/inward/record.url?scp=85027102091&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027102091&partnerID=8YFLogxK

U2 - 10.2174/1874210601711010338

DO - 10.2174/1874210601711010338

M3 - Article

VL - 11

SP - 338

EP - 349

JO - Open Dentistry Journal

JF - Open Dentistry Journal

SN - 1874-2106

IS - Suppl-1, M2

ER -