Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography

Monikelly do Carmo Chagas Nascimento; Solange Maria de Almeida Boscolo; Francisco Haiter-Neto; Emanuela Carla Dos Santos; Ivo Lambrichts; Ruben Pauwels; Reinhilde Jacobs

doi:10.1016/j.oooo.2017.01.015

Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography

Monikelly do Carmo Chagas Nascimento^*, Solange Maria de Almeida Boscolo, Francisco Haiter-Neto, Emanuela Carla Dos Santos, Ivo Lambrichts, Ruben Pauwels, Reinhilde Jacobs

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

8 Citations (Scopus)

Abstract

Objectives. The aim of this study was to assess the influence of the number of basis images and the orientation of the skull on the evaluation of cortical alveolar bone in cone beam computed tomography (CBCT).

Study Design. Eleven skulls with a total of 59 anterior teeth were selected. CBCT images were acquired by using 4 protocols, by varying the rotation of the tube-detector arm and the orientation of the skull (protocol 1: 360(omicron)/0(omicron); protocol 2: 180(omicron)/0(omicron); protocol 3: 180(omicron)/90(omicron); protocol 4: 180(omicron)/180(omicron)). Observers evaluated cortical bone as absent, thin, or thick. Direct observation of the skulls was used as the gold standard. Intra- and interobserver agreement, as well as agreement of scoring between the 3 bone thickness classifications, were calculated by using the k statistic. The Wilcoxon signed-rank test was used to compare the 4 protocols.

Results. For lingual cortical bone, protocol 1 showed no statistical difference from the gold standard. Higher reliability was found in protocol 3 for absent (k = 0.80) and thin (k = 0.47) cortices, whereas for thick cortical bone, protocol 2 was more consistent (k - 0.60). In buccal cortical bone, protocol 1 obtained the highest agreement for absent cortices (k - 0.61), whereas protocol 4 was better for thin cortical plates (k = 0.38) and protocol 2 for thick cortical plates (k = 0.40).

Conclusions. No consistent effect of the number of basis images or head orientation for visual detection of alveolar bone was detected, except for lingual cortical bone, for which full rotation scanning showed improved visualization.

Original language	English
Journal	Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
Volume	123
Issue	6
Pages (from-to)	707-713
Number of pages	7
ISSN	2212-4403
DOIs	https://doi.org/10.1016/j.oooo.2017.01.015
Publication status	Published - Jun 2017
Externally published	Yes

Keywords

IMMEDIATE IMPLANT PLACEMENT
DIAGNOSTIC-ACCURACY
ALVEOLAR PROCESS
AESTHETIC ZONE
PLATE
RELIABILITY
QUALITY
HEIGHT
FIELDS

Access to Document

10.1016/j.oooo.2017.01.015

Cite this

Chagas Nascimento, M. D. C., de Almeida Boscolo, S. M., Haiter-Neto, F., Dos Santos, E. C., Lambrichts, I., Pauwels, R., & Jacobs, R. (2017). Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 123(6), 707-713. https://doi.org/10.1016/j.oooo.2017.01.015

@article{5101fffccf414a80a9d945ccd2c66bdd,

title = "Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography",

abstract = "Objectives. The aim of this study was to assess the influence of the number of basis images and the orientation of the skull on the evaluation of cortical alveolar bone in cone beam computed tomography (CBCT).Study Design. Eleven skulls with a total of 59 anterior teeth were selected. CBCT images were acquired by using 4 protocols, by varying the rotation of the tube-detector arm and the orientation of the skull (protocol 1: 360(omicron)/0(omicron); protocol 2: 180(omicron)/0(omicron); protocol 3: 180(omicron)/90(omicron); protocol 4: 180(omicron)/180(omicron)). Observers evaluated cortical bone as absent, thin, or thick. Direct observation of the skulls was used as the gold standard. Intra- and interobserver agreement, as well as agreement of scoring between the 3 bone thickness classifications, were calculated by using the k statistic. The Wilcoxon signed-rank test was used to compare the 4 protocols.Results. For lingual cortical bone, protocol 1 showed no statistical difference from the gold standard. Higher reliability was found in protocol 3 for absent (k = 0.80) and thin (k = 0.47) cortices, whereas for thick cortical bone, protocol 2 was more consistent (k - 0.60). In buccal cortical bone, protocol 1 obtained the highest agreement for absent cortices (k - 0.61), whereas protocol 4 was better for thin cortical plates (k = 0.38) and protocol 2 for thick cortical plates (k = 0.40).Conclusions. No consistent effect of the number of basis images or head orientation for visual detection of alveolar bone was detected, except for lingual cortical bone, for which full rotation scanning showed improved visualization.",

keywords = "IMMEDIATE IMPLANT PLACEMENT, DIAGNOSTIC-ACCURACY, ALVEOLAR PROCESS, AESTHETIC ZONE, PLATE, RELIABILITY, QUALITY, HEIGHT, FIELDS",

author = "{Chagas Nascimento}, {Monikelly do Carmo} and {de Almeida Boscolo}, {Solange Maria} and Francisco Haiter-Neto and {Dos Santos}, {Emanuela Carla} and Ivo Lambrichts and Ruben Pauwels and Reinhilde Jacobs",

year = "2017",

month = jun,

doi = "10.1016/j.oooo.2017.01.015",

language = "English",

volume = "123",

pages = "707--713",

journal = "Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology",

issn = "2212-4403",

publisher = "Mosby Inc.",

number = "6",

}

Chagas Nascimento, MDC, de Almeida Boscolo, SM, Haiter-Neto, F, Dos Santos, EC, Lambrichts, I, Pauwels, R & Jacobs, R 2017, 'Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography', Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, vol. 123, no. 6, pp. 707-713. https://doi.org/10.1016/j.oooo.2017.01.015

Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography. / Chagas Nascimento, Monikelly do Carmo; de Almeida Boscolo, Solange Maria; Haiter-Neto, Francisco et al.
In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, Vol. 123, No. 6, 06.2017, p. 707-713.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography

AU - Chagas Nascimento, Monikelly do Carmo

AU - de Almeida Boscolo, Solange Maria

AU - Haiter-Neto, Francisco

AU - Dos Santos, Emanuela Carla

AU - Lambrichts, Ivo

AU - Pauwels, Ruben

AU - Jacobs, Reinhilde

PY - 2017/6

Y1 - 2017/6

N2 - Objectives. The aim of this study was to assess the influence of the number of basis images and the orientation of the skull on the evaluation of cortical alveolar bone in cone beam computed tomography (CBCT).Study Design. Eleven skulls with a total of 59 anterior teeth were selected. CBCT images were acquired by using 4 protocols, by varying the rotation of the tube-detector arm and the orientation of the skull (protocol 1: 360(omicron)/0(omicron); protocol 2: 180(omicron)/0(omicron); protocol 3: 180(omicron)/90(omicron); protocol 4: 180(omicron)/180(omicron)). Observers evaluated cortical bone as absent, thin, or thick. Direct observation of the skulls was used as the gold standard. Intra- and interobserver agreement, as well as agreement of scoring between the 3 bone thickness classifications, were calculated by using the k statistic. The Wilcoxon signed-rank test was used to compare the 4 protocols.Results. For lingual cortical bone, protocol 1 showed no statistical difference from the gold standard. Higher reliability was found in protocol 3 for absent (k = 0.80) and thin (k = 0.47) cortices, whereas for thick cortical bone, protocol 2 was more consistent (k - 0.60). In buccal cortical bone, protocol 1 obtained the highest agreement for absent cortices (k - 0.61), whereas protocol 4 was better for thin cortical plates (k = 0.38) and protocol 2 for thick cortical plates (k = 0.40).Conclusions. No consistent effect of the number of basis images or head orientation for visual detection of alveolar bone was detected, except for lingual cortical bone, for which full rotation scanning showed improved visualization.

AB - Objectives. The aim of this study was to assess the influence of the number of basis images and the orientation of the skull on the evaluation of cortical alveolar bone in cone beam computed tomography (CBCT).Study Design. Eleven skulls with a total of 59 anterior teeth were selected. CBCT images were acquired by using 4 protocols, by varying the rotation of the tube-detector arm and the orientation of the skull (protocol 1: 360(omicron)/0(omicron); protocol 2: 180(omicron)/0(omicron); protocol 3: 180(omicron)/90(omicron); protocol 4: 180(omicron)/180(omicron)). Observers evaluated cortical bone as absent, thin, or thick. Direct observation of the skulls was used as the gold standard. Intra- and interobserver agreement, as well as agreement of scoring between the 3 bone thickness classifications, were calculated by using the k statistic. The Wilcoxon signed-rank test was used to compare the 4 protocols.Results. For lingual cortical bone, protocol 1 showed no statistical difference from the gold standard. Higher reliability was found in protocol 3 for absent (k = 0.80) and thin (k = 0.47) cortices, whereas for thick cortical bone, protocol 2 was more consistent (k - 0.60). In buccal cortical bone, protocol 1 obtained the highest agreement for absent cortices (k - 0.61), whereas protocol 4 was better for thin cortical plates (k = 0.38) and protocol 2 for thick cortical plates (k = 0.40).Conclusions. No consistent effect of the number of basis images or head orientation for visual detection of alveolar bone was detected, except for lingual cortical bone, for which full rotation scanning showed improved visualization.

KW - IMMEDIATE IMPLANT PLACEMENT

KW - DIAGNOSTIC-ACCURACY

KW - ALVEOLAR PROCESS

KW - AESTHETIC ZONE

KW - PLATE

KW - RELIABILITY

KW - QUALITY

KW - HEIGHT

KW - FIELDS

U2 - 10.1016/j.oooo.2017.01.015

DO - 10.1016/j.oooo.2017.01.015

M3 - Journal article

SN - 2212-4403

VL - 123

SP - 707

EP - 713

JO - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology

JF - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology

IS - 6

ER -

Influence of basis images and skull position on evaluation of cortical bone thickness in cone beam computed tomography

Abstract

Keywords

Access to Document

Fingerprint

Cite this