Cone-beam Computed Tomography-based three-dimensional cephalometric analysis of mandible symmetry and the occlusal plane of adult patients with high-angle skeletal class III malocclusion and jaw deformity

Teng, Caitian; Liu, Chao; Yu, Qin; Liu, Shu

doi:10.1016/j.archoralbio.2021.105157

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…The reproducibility of the constructed MSP was found to be questionable in 13 of the included studies [16, 17, 21-26, 32, 9, 41, 46, 52] as they failed to report the reliability assessment, which led to a rating of 'high' risk of concern; however, the overall risk was judged to be 'low' in the index test domain. Regarding the reference standard domain, nine studies with ambiguous reference standards were considered to have 'unclear' risk [17,26,31,38,39,41,49,50,52], while the majority of the studies were deemed to have 'low' risk. The Supplementary Figure includes a detailed presentation of the study quality and risk of bias assessment.…”

Section: Study Quality Assessmentmentioning

confidence: 99%

Establishment of the mid-sagittal reference plane for three-dimensional assessment of facial asymmetry: a systematic review

Ajmera,

Singh,

Leung

et al. 2024

Clin Oral Invest

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Objective To systematically review the literature for mid-sagittal plane establishment approaches to identify the most effective method for constructing the mid-sagittal plane for the evaluation of facial asymmetry. Materials and methods Six electronic databases (PubMed, Medline (via Ovid), EMBASE (via Ovid), Cochrane Library, Web of Science, and Scopus) and grey literature were searched for the studies that computed the mid-sagittal reference plane three-dimensionally, using a combination of MeSH terms and keywords. The methodological quality and the level of evidence for the included studies were analyzed using QUADAS-2 and GRADE, respectively. Results The preliminary search yielded 6746 records, of which 42 articles that met the predefined inclusion criteria were included in the final analysis. All the included articles reported the construction of the mid-sagittal reference plane (MSP) using varied methods. The risk of bias and concerns regarding the applicability of the included studies were judged to be ‘low’. The level of evidence was determined to be ‘low’ for the effectiveness of the technique and ‘moderate’ for the ease of clinical applicability. Conclusion Despite methodological heterogeneity, this review substantiates the comparable efficacy of cephalometric and morphometric MSP construction methods. A fully automated morphometric MSP holds promise as a viable option for routine clinical use. Nevertheless, future prospective studies with an emphasis on the impact, accuracy, and clinical applicability of MSP construction techniques in cases of facial asymmetry are required. Clinical relevance The present review will assist clinicians in selecting the most suitable method for MSP construction, leading to improved treatment planning and ultimately more favorable treatment outcomes.

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Section: Study Quality Assessmentmentioning

confidence: 99%

Establishment of the mid-sagittal reference plane for three-dimensional assessment of facial asymmetry: a systematic review

Ajmera,

Singh,

Leung

et al. 2024

Clin Oral Invest

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“…On a literature basis, we selected 3D cephalometric measurements which transpose 2D cephalometry in a three-dimensional environment [8,9], adding new measurements which are purely three-dimensional [10][11][12][13]. Thus, we here introduce a 3DCA based on our clinical practice, by means of which we analysed a cohort of SF patients, with the aim of deepening our comprehension of the uncertain aspects in this approach.…”

Section: Open Accessmentioning

confidence: 99%

Three-dimensional cephalometric outcome predictability of virtual orthodontic-surgical planning in surgery-first approach

et al. 2022

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Objectives The aim of this study is to introduce a novel 3D cephalometric analysis (3DCA) and to validate its use in evaluating the reproducibility of virtual orthodontic-surgical planning (VOSP) in surgery-first approach (SF) comparing VOSP and post-operative outcome (PostOp). Methods The cohort of nineteen patients underwent bimaxillary orthognathic surgery following the VOSP designed in SimPlant O&O software by processing cone-beam computed tomography (CBCT) scans and intraoral digital scanning of the dental arches. Said records were re-acquired once the post-operative orthodontic treatment was completed. The 3DCA was performed by three expert operators on VOSP and PostOp 3D models. Descriptive statistics of 3DCA measures were evaluated, and outcomes were compared via Wilcoxon test. Results In the comparison between cephalometric outcomes against planned ones, the following values showed significant differences: Wits Index, which suggests a tendency towards skeletal class III in PostOp (p = 0.033); decreased PFH/AFH ratio (p = 0.010); decreased upper incisors inclination (p < 0.001); and increased OVJ (p = 0.001). However not significant (p = 0.053), a tendency towards maxillary retroposition was found in PostOp (A/McNamara VOSP: 5.05 ± 2.64 mm; PostOp: 4.1 ± 2.6 mm). On average, however, when McNamara’s plane was considered as reference, a tendency to biprotrusion was found. Upper incisal protrusion was greater in PostOp as an orthodontic compensation for residual maxillary retrusion (VOSP: 5.68 ± 2.56 mm; PostOp: 6.53 ± 2.63 mm; p = 0.084). Finally, the frontal symmetry in relation to the median sagittal plane decreased in craniocaudal direction. Limitations A potential limit of studies making use of closest point distance analysis is represented by the complexity that surgeons and orthodontists face in applying this three-dimensional evaluation of SF accuracy/predictability to everyday clinical practice and diagnosis. Also, heterogeneity and limited sample size may impact the results of the study comparison. Conclusions The presented 3DCA offers a valid aid in performing VOSP and analysing orthognathic surgery outcomes, especially in SF. Thanks to the cephalometric analysis, we found that surgery-first approach outcome unpredictability is mainly tied to the sagittal positioning of the maxilla and that the transverse symmetry is progressively less predictable in a craniocaudal direction.

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Cephalometric Analysis Using Three-Dimensional Imaging System

Sennimalai,

Vichare,

Rana

et al. 2024

Applications of Three-Dimensional Imaging for Craniofacial Region

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Cone-beam Computed Tomography-based three-dimensional cephalometric analysis of mandible symmetry and the occlusal plane of adult patients with high-angle skeletal class III malocclusion and jaw deformity

Cited by 5 publications

References 24 publications

Establishment of the mid-sagittal reference plane for three-dimensional assessment of facial asymmetry: a systematic review

Establishment of the mid-sagittal reference plane for three-dimensional assessment of facial asymmetry: a systematic review

Three-dimensional cephalometric outcome predictability of virtual orthodontic-surgical planning in surgery-first approach

Cephalometric Analysis Using Three-Dimensional Imaging System

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