Condylar form alteration on skeletal class II patients that underwent orthognathic surgery: An overview of systematic reviews

Francisco, Inês; Guimarães, Adriana Coutinho de Azevedo; Lopes, M. F.; Lucas, A.F.B; Caramelo, Francisco; Vale, Francisco

doi:10.4317/jced.56947

Cited by 8 publications

(1 citation statement)

References 21 publications

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“…Currently, there exists a great interest in determining the condylar position and understanding its association with temporomandibular disorders, thus many studies have been conducted that research the relationship between the condylar position and the presence of temporomandibular dysfunctions. For these studies, many different methods have been used, such as the one devised by Guimarães and colleagues in 2017 which uses tomography [18]. Guimarães and colleagues reported that there was no correlation between the condylar position and temporomandibular disorders.…”

Section: Discussionmentioning

confidence: 99%

Concordance among three diagnostic methods for determining the position of the mandibular condyle

Terán,

Liévano,

Núñez

et al. 2023

Jaw funct. orthop., craniofac. growth

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The position of the condyle can be determined using different diagnostic tools, among which are transcranial X-rays (RT), Cone Beam Computed Tomography (CBCT), and the Condylar Position Indicator (CPI). This study aimed to determine the concordance among the CPI, the CBCT, and the RT as diagnostic methods for determining the condyle position. Materials and method: 32 valid cases, each of which had an RT, a CBCT, and a CPI, were analyzed by three observers. SPSS V. 26.0 program was used to calculate the Kappa trust interval, using the jackknife technique which allows to estimate of the standard error between observers. To evaluate the condylar position using CPI, an AD2 articulator was employed. A Pullinger and Hollender layout was used in the tomographic and transcranial images. Results: The concordance among the three observers for each method resulted in a value of Kappa higher than 0.879. The concordance between CBCT and RT was 0.0627, between CPI and RT it was 0.247, and between CBCT and CPI it was .188. Conclusion: The level of concordance obtained between the three observers with any given diagnostic method was very good, which indicates that the concordance that each observer obtained regarding each diagnostic method is trustworthy. In this study, it is concluded that there is a concordance in the diagnosis regarding the position of the condyle of the tomography with the transcranial radiography. There is no concordance between tomography and CPI. There was also no concordance between the CPI and the transcranial radiography.

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Section: Discussionmentioning

confidence: 99%

Concordance among three diagnostic methods for determining the position of the mandibular condyle

Terán,

Liévano,

Núñez

et al. 2023

Jaw funct. orthop., craniofac. growth

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Condylar Reshape in Orthognathic Surgery: Morphovolumetric and Densitometric Analysis Based on 3D Imaging and Digital Workflow

Abbate¹,

Audino²,

Orabona³

et al. 2022

J. Maxillofac. Oral Surg.

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Background Condylar remodelling (CR) is a complex of phenomena that generates in response of the temporo-mandibular joint to forces and stress to maintain a morphological, functional and occlusal homeostasis. The most worrying aspect of the condylar reshape is the condylar resorption which implies fast loss of vertical dimension (>6% of pre-surgical value), mandibular retraction and open bite with preserved articular function. Materials and Methods Six parameters were analysed to study the condyles of twelve patients that underwent orthognathic surgery. The digital workflow was then described to make it reproducible enabling a more in-depth study of the reshaping processes that involving the condyle after a great stress like the surgery. Results The results of our study showed many statistically significant variations of the studied parameters. In all patients, it was noticed a decreased bone density (p = 0,002 per side). Objectives The aim of our study, with the aid of the contemporary 3D imaging and digital modelling and workflow technologies, is to investigate and analyse quantitatively and qualitatively the adaptative processes occurring in CR following bimaxillary repositioning. To the best of our knowledge, this is the only paper that investigates the CR considering six different variables at once.

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Modeling the effect of bilateral sagittal split osteotomy on posterior, superior and medial space dimensions of the temporomandibular joint: a retrospective controlled cohort study

et al. 2023

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Background To model the effect of isolated bilateral sagittal split osteotomy (BSSO) on changes in posterior (PSD), superior (SSD), and medial space dimensions (MSD) of the temporomandibular joint. Methods Using a retrospective cohort study design, pre- and postoperative (immediately after surgery; 1 year follow-up) cone-beam computed tomography measurements of 36 patients who had undergone BSSO for mandibular advancement were compared with a control group of 25 subjects from whom a mandibular odontogenic cyst was removed under general anesthesia. Generalized estimation equation (GEE) models were used to examine the independent effects of study group, preoperative condylar position, and time points on PSD, SSD, and MSD adjusting for covariates (age, sex, and mandibular advancement). Results No significant differences were found regarding changes in PSD (p = 0.144), SSD (p = 0.607), or MSD (p = 0.565) between the BSSO and control groups. However, the preoperative posterior condylar position showed significant effects on PSD (p < 0.001) and MSD (p = 0.043), while the preoperative central condylar position demonstrated a significant effect on PSD (p < 0.001). Conclusion The data suggest that preoperative posterior condylar position is a significant effect modifier of PSD and MSD over time in this cohort.

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Condylar form alteration on skeletal class II patients that underwent orthognathic surgery: An overview of systematic reviews

Cited by 8 publications

References 21 publications

Concordance among three diagnostic methods for determining the position of the mandibular condyle

Concordance among three diagnostic methods for determining the position of the mandibular condyle

Condylar Reshape in Orthognathic Surgery: Morphovolumetric and Densitometric Analysis Based on 3D Imaging and Digital Workflow

Modeling the effect of bilateral sagittal split osteotomy on posterior, superior and medial space dimensions of the temporomandibular joint: a retrospective controlled cohort study

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