Cone-beam tomography assessment of condylar position discrepancy between centric relation and maximal intercuspation

Henriques, João César Guimarães; Neto, Alfredo Júlio Fernandes; Almeida, Guilherme de; Machado, Naila Aparecida de Godoi; Lelis, Éverton Ribeiro

doi:10.1590/s1806-83242011005000017

Cited by 24 publications

(25 citation statements)

References 8 publications

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“…Still, review of literature (Pullinger et al, 1987;Mohlin, 1983;Demisch et al, 1992;Abraham and Veeravalli, 2012;Weffort and de Fantini, 2010;Klar et al, 2003;Foglio-Bonda et al, 2006) reveals different results, mostly because of study methods. Different approaches have been used for measuring the centric slide: directly in the mouth (Pullinger et al, 1987;Mohlin, 1983;Demisch et al, 1992), with conventional radiography (Kydd and Sander, 1961), cone beam CT (Henriques et al, 2012), jaw tracking devices (Foglio-Bonda et al, 2006) and with articulated casts (condyle position indicator) (Abraham and Veeravalli, 2012;Weffort and de Fantini, 2010;Klar et al, 2003). Differences in obtained values for centric slide are also expected because of different reference points.…”

Section: Introductionmentioning

confidence: 99%

Centric slide in different Angle's classes of occlusion

Čimić

Badel

Šimunković

et al. 2016

Annals of Anatomy - Anatomischer Anzeiger

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Section: Introductionmentioning

confidence: 99%

Centric slide in different Angle's classes of occlusion

Čimić

Badel

Šimunković

et al. 2016

Annals of Anatomy - Anatomischer Anzeiger

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“…5 The same operator performed all the measurements. The entire measuring process was conducted identically on the lateral cuts of the left side and the operator recorded three measurements in three sagittal cuts (Figs.…”

Section: Methodsmentioning

confidence: 99%

“…1 In cases of bimaxillary edentulous patients, incorrect planning and execution of the rehabilitation procedures may result in unsuitable prosthesis and risk of temporomandibular disorders. [2][3][4][5] The determination of the correct intermaxillary relation and condilar position is one of the most sensitive and rigorous procedures in the rehabilitation. Several authors 1,5-7 referred the centric relation (CR) as the appropriate position for extended rehabilitation.…”

Section: Introductionmentioning

confidence: 99%

“…CT provides three-dimensional images but with high radiation, whereas OPG overcomes the radiation exposure, but limited to bidimensional images. 5,[15][16][17][18] Evaluating the condylar position by cone beam computed tomography (CBCT) has become an essential tool to obtain three-dimensional images. The capture of the area of interest with rapid scan time (10-70 s) minimizes the exposure of adjacent structures, while exposing the patient to low radiation doses.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of condylar position by CBCT after static and dynamic registration in edentulous patients

Veloso

Dias

Messias

et al. 2015

Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurg

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r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 5;5 6(1):9-17 Cone beam computed tomography Stomatognatic system a b s t r a c t Objectives: The aims of this study are to: compare the condylar position in articular fossa after static and dynamic registration; analyze symmetry between right and left condyles and examine the relationship between articular eminence and condylar position.Methods: Twenty completely edentulous patients were included in this study, after signing a written informed consent. Static registration was obtained by mandibular manipulation and dynamic registration was performed by Gothic Arch Tracing. Patients were submitted to one cone beam in static registration, followed by another with dynamic registration.Radiographic image measurements in lateral and frontal cuts were made. Results:No statistically significant differences between the two methods were found. In dynamic registration all the distances were smaller, more consistent and equidistant. Condyles stayed in a closer position to the articular fossa and in a centred position. For this registration a higher symmetry between left and right condyle exists, revealed by homogeneous results. Static registration had a higher heterogeneity of results, due to the fact that it is dependent upon a number of factors. Conclusions: Dynamic registration seems a reliable and an accurate method to use. With the higher condylar symmetry and the centred position in articular fossa, it seems that this registration reproduces a physiologic condylar position. article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).10 r e v p o r t e s t o m a t o l m e d d e n t c i r m a x i l o f a c . 2 0 1 5;5 6(1):9-17 Avaliação da Posição Condilar na TCFC após Registo Estático e Dinâmico em Desdentados Totais Bimaxilares Palavras-chave: Relação Cêntrica Côndilo Mandibular Articulação Temporomandibular Registo Intermaxilar Tomografia computorizada de feixe cónico Sistema estomatognático r e s u m o Objetivos: Os objetivos deste estudo são a comparação da posição condilar, após registo estático e dinâmico; análise da simetria entre o côndilo direito e o côndilo esquerdo e a análise da relação entre a eminência articular e a posição condilar. Métodos: Vinte desdentados totais participaram neste estudo, após assinarem um consentimento informado. O registo estático foi realizado através da manipulação mandibular e o dinâmico através do registo do traç ado do Arco Gótico. Os doentes foram submetidos à primeira tomografia com o registo estático, tendo sido realizado a segunda com o registo dinâmico. Foram realizadas mediç ões nos cortes tomográficos laterais e frontais. Resultados: Não foram encontradas diferenças estatisticamente significativas entre os dois registos. No registo dinâmico todas as distâncias foram menores, mais consistentes e equidistantes. Os côndilos estavam numa posição mais centrada e próxima da fossa articular. Com este registo verificou-se uma maior simetria entre côndilos, através de res...

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“…The JIG was then ground on its palatal side until obtaining that first occlusal and incisal contacts with the JIG simultaneously. This position was set in the interocclusal device using a tiny amount of acrylic resin to make it a stable reference point for use in the CBCT analysis (16). The CBCT images were obtained using the NewTom 3G tomographer (Quantitative Radiology, Verona, Italy).…”

Section: Methodsmentioning

confidence: 99%

Identification of occlusal prematurity by clinical examination and cone-beam computed tomography

et al. 2013

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The aim of this study was to evaluate the ability to identify occlusal prematurity by images from paraxial slices of cone-beam computed tomography (CBCT). For such purpose, a pilot study was performed in which 16 asymptomatic young patients were subjected to a clinical examination, including a careful occlusal analysis and then individual deprogrammer devices ("Lucia's JIG") were fabricated. Premature contacts were clinically identified in centric relation (CR) for each patient by jaw manipulation and interocclusal marking with articulating paper (Accufilm). Subsequently, these devices were adjusted in CR and used during the tomographic exams in such a way that CBCT in CR could be obtained. After routine processing, the images were analyzed in order to identify occlusal prematurity on the displayed images by 30 professionals divided according to areas of activity (occlusion specialist, general practitioner and radiologist; n=10 per area) and time of professional experience (less than 5, between 5 and 10, and over 10 years). By comparing the premature contacts identified in the clinical analysis and CBCT images, an agreement index between these two variables was calculated. Data were analyzed statistically by ANOVA and Scott-Knott test (a=0.05). The results showed that the identification of occlusal prematurity by paraxial CBCT slices was proven to be a method of average reliability.

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Cone-beam tomography assessment of condylar position discrepancy between centric relation and maximal intercuspation

Cited by 24 publications

References 8 publications

Centric slide in different Angle's classes of occlusion

Centric slide in different Angle's classes of occlusion

Evaluation of condylar position by CBCT after static and dynamic registration in edentulous patients

Identification of occlusal prematurity by clinical examination and cone-beam computed tomography

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