Accuracy of alveolar bone height and thickness measurements in cone beam computed tomography: a systematic review and meta-analysis

Li, Yuan; Deng, Shiyong; Li, Mei; Li, Jialing; Qi, Meiyao; Su, Sihui; Liu, Yu; Zheng, Wei

doi:10.1016/j.oooo.2019.05.010

Cited by 32 publications

(26 citation statements)

References 36 publications

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“…However, no significant differences were reported for bone thickness values (− 0.07 mm) between CBCT and direct measurements with calipers in vivo [60]. Besides, CEJ anatomical reference registration is usually difficult, though its impact on bone height measurements is to be around 0.01 mm, this is a lower difference than obtained with cusp tip (0.1 mm) as landmark [60]. These values are lower than the maximum errors reported for CBCTderived tooth surfaces measures in vivo (± 0.2 mm) [61].…”

Section: Discussionmentioning

confidence: 84%

“…It is because some factors like patient motion reduce accuracy and reliability of linear measurements on CBCT images, device-specific exposure parameters, manual versus automated procedures, metallic artifacts of dental implant and bioceramic materials [36,58,59]. However, no significant differences were reported for bone thickness values (− 0.07 mm) between CBCT and direct measurements with calipers in vivo [60]. Besides, CEJ anatomical reference registration is usually difficult, though its impact on bone height measurements is to be around 0.01 mm, this is a lower difference than obtained with cusp tip (0.1 mm) as landmark [60].…”

Section: Discussionmentioning

confidence: 99%

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Facial alveolar bone thickness and modifying factors of anterior maxillary teeth: a systematic review and meta-analysis of cone-beam computed tomography studies

et al. 2021

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Background Understanding the anatomy of the facial alveolar bone (FAB), provides a prognostic tool for estimating the degree of dimensional ridge alterations after tooth extraction. This systematic review and meta-analysis aims to determine the FAB thickness and modifying factors of anterior maxillary teeth measured by CBCT scans. A secondary objective was to assess the facial distance from the cementoenamel junction (CEJ) to the bone crest. Methods An electronic search was made of Medline, Embase, Web of Science, Cochrane Library and Google Scholar up to December 2019. Studies that analyze and quantitatively compare FAB thickness at maxillary teeth by CBCT scans were included. The methodological quality of the included studies was appraised using the ROBINS-I tool and the overall meta-evidence certainty using the GRADE approach. A single means random-effects meta-analysis was performed to obtain the weighted mean for 95% confidence interval. A meta-regression of covariates and subgroup analysis was conducted. The nullity Qh test and I2 index for heterogeneity was estimated. Results 2560 potentially relevant articles were recorded from which 29 studies were selected for the qualitative analysis, including 17,321 teeth. Seventeen studies considered the facial bone crest, and 12 the CEJ as a reference point for their measurements. Mean FAB thickness was ≤ 1 mm in maxillary incisors and canines (0.75–1.05 mm) and 1–2 mm in premolars. Patients over 50 years of age, females and thin gingival phenotype was associated with thinner FAB at some apico-coronal locations of maxillary incisors and canines. The geographical setting was an effect modifier that could explain up to 87% of the heterogeneity in FAB thickness, being Asian populations that showed the lowest FAB thickness values. The CEJ-bone crest distance was 2–2.5 mm in all teeth analyzed. Population over 50 years of age exhibited greater CEJ-bone crest distances, and males also showed a trend for greater distance. Evidence certainty has shown moderate quality in most analysis subsets. Conclusions Facial alveolar bone at anterior maxillary teeth is thin, heterogeneous in width along its apico-coronal dimensions, and increases in thickness in maxillary premolars. The CEJ-bone crest distance presented homogeneous and similar values in all teeth analyzed.

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Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Facial alveolar bone thickness and modifying factors of anterior maxillary teeth: a systematic review and meta-analysis of cone-beam computed tomography studies

et al. 2021

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“…However, no signi cant differences were reported for bone thickness values (-0.07 mm) between CBCT and direct measurements with calipers in vivo [62]. Besides, CEJ anatomical reference registration is usually di cult, though its impact on bone height measurements is to be around 0.01 mm, this is a lower difference than obtained with cusp tip (0.1 mm) as landmark [62]. These values are lower than the maximum errors reported for CBCT-derived tooth surfaces measures in vivo (± 0.2 mm) [63].…”

Section: Discussionmentioning

confidence: 88%

“…It is because some factors like patient motion reduce accuracy and reliability of linear measurements on CBCT images, device-speci c exposure parameters, manual versus automated procedures, metallic artifacts of dental implant and bioceramic materials [59][60][61]. However, no signi cant differences were reported for bone thickness values (-0.07 mm) between CBCT and direct measurements with calipers in vivo [62]. Besides, CEJ anatomical reference registration is usually di cult, though its impact on bone height measurements is to be around 0.01 mm, this is a lower difference than obtained with cusp tip (0.1 mm) as landmark [62].…”

Section: Discussionmentioning

confidence: 99%

Facial Alveolar Bone Thickness and Modifying Factors of Anterior Maxillary Teeth: A Systematic Review and Meta-Analysis of Cone-Beam Computed Tomography Studies

Rojo-Sanchis

Soto-Peñaloza

Peñarrocha‐Oltra

et al. 2020

Preprint

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Background: Understanding the anatomy of the facial alveolar bone (FAB), provides a prognostic tool for estimating the degree of dimensional ridge alterations after tooth extraction. This study aimed to systematically review the FAB thickness of anterior maxillary teeth measured by CBCT scans. A secondary objective was to assess the facial distance from the cementoenamel junction (CEJ) to the bone crest.Methods: An electronic search was made of Medline, Embase, Web of Science, Cochrane Library and Google Scholar up to December 2019. Studies that analyze and quantitatively compare FAB thickness at maxillary teeth by CBCT scans were included. The methodological quality of the included studies was appraised using the ROBINS-I tool from the Cochrane Collaboration. A meta-analysis of single means, subgroup analysis and meta-regression of covariates were conducted.Results: Twenty-nine studies, including 17,321 teeth, were selected. Seventeen studies considered the facial bone crest, and 12 the CEJ as a reference point for their measurements. Mean FAB thickness was ≤ 1 mm in maxillary incisors and canines (0.75-1.05 mm) and 1-2 mm in premolars. Patients over 50 years of age and females exhibited a thinner FAB at some apico-coronal locations of maxillary incisors and canines. Thicker gingival phenotypes were associated with a thicker FAB in maxillary incisors and canines. The geographical setting proved to be an effect modifier that could explain up to 87% of the heterogeneity in FAB thickness, being Asian populations that showed the lowest FAB thickness values. The CEJ-bone crest distance was 2-2.5 mm in all teeth analyzed. Population over 50 years of age exhibited greater CEJ-bone crest distances, and males also showed a trend for greater distance. The prevalence of bone dehiscences at maxillary incisors and canines was 12.3-20.1%; while the prevalence of fenestrations was between 6.4% and 23.8%.Conclusions: Facial alveolar bone is thin, heterogeneous in width along its apico-coronal dimensions, and increases in thickness in maxillary premolars. The prevalence of < 1 mm FAB thickness was 69.9% in central incisors, 64.5% in lateral incisors, 55% in canines and 40.4% at first premolars. The CEJ-bone crest distance presented homogeneous and similar values in all teeth analyzed.

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“…Over the past decade, CBCT imaging has been advocated for dentofacial applications, given its advantages of reduced cost and radiation dose relative to conventional CT technology 19 . In orthodontic applications, CBCT has been considered an important tool for orthodontic treatment planning and clinical research due to its reliability and accuracy for the measurements of alveolar bone thickness and root length 18,26 . Previously, in scientific analyses, however, the junctions between cortical and cancellous bone were still not easy to distinguish with high reproducibility using manual measurements, particularly in trabecular bone with a low level of porosity.…”

Section: Discussionmentioning

confidence: 99%

Dentofacial characteristics and age in association with incisor bony support in adult female patients with bimaxillary dentoalveolar protrusion

Xia

Wang

et al. 2021

Orthod Craniofacial Res

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Objective The aim of this study was to analyse the correlation between incisor alveolar bone thickness (IABT) and dentofacial characteristics or age in adult female patients with bimaxillary dentoalveolar protrusion (BDP). Evaluating the contribution of these characteristics may help to predict the IABT differences in this patient population. Setting and sample population A retrospective study whose sample comprised 80 pretreatment adult female patients with BDP (mean age 24.6 years). Materials and Methods The IABT of the bimaxillary central incisors was measured by cone‐beam computed tomography. Among the types of IABT, the apical trabecular bone thickness was measured with a quantitative method. The sagittal skeletal pattern, facial divergence, the incisor inclination angle, and mandibular plane angulation were determined by cephalometric analysis. A backward linear multiple regression was performed to analyse the associations between IABT and these characteristics. Results Three dentofacial traits and age were associated with IABT. Patients with increased age and facial divergence tended to have a thinner mandibular incisor bone support, while increased root length was associated with a thicker mandibular incisor apical bone thickness. Increased U1‐SN and facial divergence may lead to a thinner maxillary incisor palatal bone, while increased U1‐SN resulted in a thicker maxillary incisor labial bone. Conclusions The bony support of the incisors is associated with age and dentofacial traits. Increasing age and facial divergence are considered risk factors for alveolar defects in female patients with BDP. In contrast, increased root length is associated with a thicker mandibular incisor apical bone support.

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Accuracy of alveolar bone height and thickness measurements in cone beam computed tomography: a systematic review and meta-analysis

Cited by 32 publications

References 36 publications

Facial alveolar bone thickness and modifying factors of anterior maxillary teeth: a systematic review and meta-analysis of cone-beam computed tomography studies

Facial alveolar bone thickness and modifying factors of anterior maxillary teeth: a systematic review and meta-analysis of cone-beam computed tomography studies

Facial Alveolar Bone Thickness and Modifying Factors of Anterior Maxillary Teeth: A Systematic Review and Meta-Analysis of Cone-Beam Computed Tomography Studies

Dentofacial characteristics and age in association with incisor bony support in adult female patients with bimaxillary dentoalveolar protrusion

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