Relevant bibliographies by topics / Cephalograms

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Cephalograms'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "Cephalograms"

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Hwang, Sel-Ae, Jae-Seo Lee, Hyeon-Shik Hwang, and Kyung-Min Lee. "Benefits of lateral cephalogram during landmark identification on posteroanterior cephalograms." Korean Journal of Orthodontics 49, no. 1 (2019): 32. http://dx.doi.org/10.4041/kjod.2019.49.1.32.

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Shrestha, Vikash Veer, Ansu Piya, Anju Khapung, and Prakash Bhattarai. "Comparison of Accuracy of Gonial Angle of Orthopantomogram and Lateral Cephalogram for Mandibular Measurements among Orthodontic Patients Attending Tertiary Care Dental Hospital in Kathmandu." Orthodontic Journal of Nepal 10, no. 3 (December 31, 2020): 57–61. http://dx.doi.org/10.3126/ojn.v10i3.35497.

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Introduction: Gonial angle is an important parameter of the craniofacial complex which is generally used to evaluate the vertical parameters and symmetry of the facial skeleton. Gonial angle can be measured in both orthopantomogram (OPG) and lateral cephalograms. Due to the superimpositions seen while measuring the bilateral strucuture on lateral cephalograms, reliable measurement of the gonial angle becomes difficult. This study is done to clarify the possible application of orthopantomogram (OPG) for evaluating angular measurement of the mandible specifically gonial angle by comparing with lateral cephalogram. Materials and Method: All the patients (104) being treated from January 2018 to August 2020 in department of Orthodontics in Nepal Medical College were included in the study. Gonial angle measurements were made on lateral cephalograms and orthopantomograms of 104 patients – 54 males and 50 females with mean age of 22.20 ± 3.25 years. Patients aged 15-35 years were included in the study. Data was processed in SPSS version 16.0. Result: Mean Gonial angle in lateral cephalogram was greater than mean gonial angle in OPG and this difference was found to be statistically significant (p-value < 0.05). The difference in mean gonial angle was found to be statistically significant when compared between right gonial angle in OPG and gonial angle in lateral cephalogram (p-value < 0.05) and also between left gonial angle in OPG and gonial angle in lateral cephalogram (p-value < 0.05). Conclusion: When gonial angle values obtained from both sides of OPG were compared, no statistically significant difference was found. Significant differences were found when gonial angle values obtained from OPG right and left sides were compared with that of lateral cephalogram.
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Ongkosuwito, E. M., M. M. J. Dieleman, A. M. Kuijpers-Jagtman, P. G. H. Mulder, and J. W. van Neck. "Linear Mandibular Measurements: Comparison between Orthopantomograms and Lateral Cephalograms." Cleft Palate-Craniofacial Journal 46, no. 2 (March 2009): 147–53. http://dx.doi.org/10.1597/07-123.1.

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Objective: To investigate the reliability of length measurements of the mandible by comparing orthopantomograms (OPTs) with lateral cephalograms. Design: Observational study. Setting: OPTs and lateral cephalograms were taken of 20 human dry skulls. Four orthodontists and four maxillofacial surgeons located landmarks on all radiographs using a computer program for cephalometric measurements. Intraobserver and interobserver variability in locating landmarks was assessed, as well as positioning of the skulls prior to radiography between the x-ray assistants. Magnification differences between the left and right side of the mandible on the OPT were determined for five skulls. Kappa statistics were used to calculate the intraclass correlation coefficient for intraobserver and interobserver differences. An F test was used to assess differences between methods and between type of observer. Results: No significant differences were found in the magnification factor of the left and right side of the mandible. Compared with a lateral cephalogram, the OPT had comparable reliability in measuring mandibular distances condylion-gonion, gonion-menton, and condylion-menton. No significant differences were observed between the x-ray assistants in taking the OPTs and lateral cephalograms or in repositioning the skulls. Significant differences were found between orthodontists and maxillofacial surgeons for landmark measurements. Conclusion: An OPT is as reliable as a lateral cephalogram for linear measurements of the mandible (condylion-gonion, gonion-menton, and condylion-menton).
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Collins, Jill, Anwar Shah, Caroline McCarthy, and Jonathan Sandler. "Comparison of measurements from photographed lateral cephalograms and scanned cephalograms." American Journal of Orthodontics and Dentofacial Orthopedics 132, no. 6 (December 2007): 830–33. http://dx.doi.org/10.1016/j.ajodo.2007.07.008.

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Milutinovic, Jovana, Nenad Nedeljkovic, and Predrag Nikolic. "Comparative analysis of standard and computerized profile cephalometric diagnostics in orthodontics." Serbian Dental Journal 53, no. 4 (2006): 246–52. http://dx.doi.org/10.2298/sgs0604246m.

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Aim: The aim of this research was to compare the standard and computerized method of cephalogram analysis. In this research 32 patients visiting Belgrade University School of Dentistry, dept. of orthodontics were involved. Material and Method: This research was based on cephalogram analysis for every patient. All of the cephalograms were analyzed in two ways: 1. standrad method and 2. computerized method using Nemotec Dental Studio NX 2005 software. Results: Additional possibilities and properties of computer software for the computerized cephalogram analysis caused the differences in results. Conclusion: Based on the results, it can be concluded that there was no statistical difference comparing both methods. Computerized cephalogram analysis provides higher speed and software possibilities compared to standard method.
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Bhullar, Mandeep K., Priyanka Chaudhary, Sanjay Mittal, Isha Aggarwal, Merry Goyal, and Tanzin Palkit. "To Determine the Anteroposterior Position of Incisors in Relation to Points A and B on Cephalogram and Study Models in North Indian Population." Dental Journal of Advance Studies 8, no. 02 (April 28, 2020): 40–43. http://dx.doi.org/10.1055/s-0040-1710197.

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Abstract Introduction This study aimed to determine the upper and lower incisors to points A and B on lateral cephalogram and study model in North Indian population. This article evaluated the present relationship of upper and lower incisors position to point A and B on the cephalogram and studied the model as a diagnostic tool for orthodontic treatment planning. Materials and Methods The study included 32 patients, aged 15 to 25 years. The sample was divided into two groups as group I (n = 32, cephalometric analysis) and group II (n = 32, study model analysis) of the same patient. In group I incisors position was related to points A and B on the cephalograms and in group II incisors position was related to points A and B on study model by using transparent grid. Results As per Indian norms, outcome mean value for cephalometric norms was 6.3 and 3.2 mm and for study model norms was 4 and 1.3 mm. Statistically significant differences (p < 0.002) were observed for mandibular incisor position on cephalograms and for maxillary incisors (p < 0.001) on study casts when compared with Chile sample norm. Conclusion The anteroposterior position of upper and lower incisors in relation to points A and B on cephalogram and casts has been determined in North Indian patients.
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Jacobson, Alex. "Characteristics of digital cephalograms and film/screen cephalograms: a comparative study." American Journal of Orthodontics and Dentofacial Orthopedics 122, no. 1 (July 2002): 119. http://dx.doi.org/10.1067/mod.2002.125961.

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Moon, Soyeon, Daewoo Lee, Jaegon Kim, and Yeonmi Yang. "Assessment of Predicting Factors for Pediatric Sleep Disordered Breathing." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 47, no. 4 (November 30, 2020): 377–88. http://dx.doi.org/10.5933/jkapd.2020.47.4.377.

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The aim of this study was to evaluate the association between various predicting tools and Apnea-Hypopnea Index (AHI) to identify children with sleep disordered breathing (SDB). From 5 to 10 years old who came for orthodontic counseling, 61 children, whom had lateral cephalograms, pediatric sleep questionnaire (PSQ) records, and portable sleep monitoring results, were included in this study. A total of 17 measurements (11 distances and 6 angles) were made on lateral cephalograms. The measurements of lateral cephalograms, PSQ scales and portable sleep monitoring results were statistically analyzed. 49 of 61 (80%) patients showed AHI > 1, which suspected to have SDB and their mean AHI was 2.75. In this study, adenoid size (A/N ratio), position of the hyoid bone from mandibular plane, gonial angle, and PSQ scale were related to a higher risk of pediatric SDB. Also, oxygen desaturation index (ODI) and snoring time from sleep monitoring results were statistically significant in children with SDB using Mann-Whitney test (<i>p</i> ＜ 0.05).<br/>In conclusion, evaluation of hyoid bone position, adenoidal hypertrophy, gonial angle in lateral cephalogram, and PSQ scale was important to screen out potential SDB, especially in children with frequent snoring.
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Soni, Priyavrat, Vineet Sharma, and Jaideep Sengupta. "Cervical Vertebrae Anomalies—Incidental Findings on Lateral Cephalograms." Angle Orthodontist 78, no. 1 (January 1, 2008): 176–80. http://dx.doi.org/10.2319/091306-370.1.

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Abstract Three cases of abnormal incidental findings on lateral cephalogram are presented. These patients reported for orthodontic consultation in their adolescence. While studying the patients' cephalograms, abnormal radiographic findings were discovered in their cervical vertebrae. Because the patients were asymptomatic, early diagnosis based on these radiographic findings made the patients aware of the situations. Lifestyle changes were instituted with specialist consultation in two patients to prevent or delay the onset of symptoms of an underlying pathology. Patients were educated about the likely future course of these findings. Specialist follow-up was advised to all the patients.
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Parthasarathy, S., S. T. Nugent, P. G. Gregson, and D. F. Fay. "Automatic landmarking of cephalograms." Computers and Biomedical Research 22, no. 3 (June 1989): 248–69. http://dx.doi.org/10.1016/0010-4809(89)90005-0.

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Dissertations / Theses on the topic "Cephalograms"

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Kumar, Vandana Ludlow John B. "Comparison of conventional and Cone Beam CT synthesized cephalograms." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,955.

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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2007.
Title from electronic title page (viewed Dec. 18, 2007). "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Diagnostic Sciences and General Dentistry, School of Dentistry." Discipline: Diagnostic Sciences and General Dentistry; Department/School: Dentistry.
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Mangan, Julia. "Reliability of Cervical Vertebrae Maturation (CVM) staging method using full versus cropped lateral cephalograms." Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3020590/.

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Patel, Jay Vijendra. "EVALUATING THE DIAGNOSTIC VALUE OF LATERAL CEPHALOGRAM RADIOGRAPHS." Master's thesis, Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/216600.

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Oral Biology
M.S.
There remains a discord among orthodontists regarding the usefulness of a lateral cephalogram radiograph as a part of diagnostic records for treatment planning. Today, orthodontists take diagnostic lateral cephalograms largely based on a personal preference, rather than following any evidence-based approached for determining whether taking the radiograph will affect treatment planning. The aim of this study is to identify patients with the type of malocclusion for which the availability of a lateral cephalogram radiograph will affect the treatment plan. This would prevent patients, whose treatment plan would not benefit from a diagnostic lateral cephalogram, from receiving unnecessary ionizing radiation. The data for this study was obtained from responses to two questionnaires, mailed five weeks apart, to ten orthodontists with clinical experience. Primarily, the orthodontists were required to treatment plan twenty cases, twice, once with full diagnostic records including a lateral cephalogram radiograph and once without. Six orthodontists completed both questionnaires. Based on the data, it was found that for approximately 25% of patients having a lateral cephalogram radiograph does affect treatment planning. These patients present with bilateral, sagittal dental malocclusions, matching significant soft-tissue profile disharmony and at least one arch with a moderate arch length discrepancy. A larger, follow-up study is suggested to further investigate the relationship between malocclusion, lateral cephalogram radiographs, and treatment planning.
Temple University--Theses
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Rosa, Vera Lúcia Mestre. "Cefalostato virtual-posicionamento inicial para a padronização na marcação de pontos craniométricos em imagens obtidas por tomografia computadorizada, para uso em cefalometria." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/23/23139/tde-19122009-122434/.

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Objetivo: O desenvolvimento da tecnologia em diagnóstico odontológico por imagem através dos Tomógrafos Computadorizados por Feixe Cônico, tornou possível e acessível a avaliação cefalométrica através de reconstruções volumétricas do crânio. Parâmetros baseados em evidências científicas são necessários para implementar o seu uso. Alguns parâmetros utilizados na cefalometria convencional (bidimensional) deverão ser esquecidos, outros deverão ser adaptados, outros, ainda, deverão ser criados. Propomos aqui a criação de um Cefalostato Virtual para orientação do crânio em TC, com a utilização de pontos intracranianos, que são mais estáveis. Também propomos a criação do ponto TS e da linha TS-Pg em substituição ao ponto S e ao eixo Y de crescimento de Downs, respectivamente. Além disso, propomos a linha Ba-Op como referência para casos de assimetria faciais onde não é possível a utilização do plano Horizontal de Frankfurt, em casos, por exemplo, de síndromes que afetem os pontos de referências mais externos. Métodos: 49 crânios pertencentes ao do Museu de Anatomia UNIFESP, foram escaneados em um tomógrafo computadorizado por feixe cônico (TCFC), na clínica ISOOrthographic, São Paulo. As pontuações foram realizadas em dois momentos, com espaçamento de uma semana. Foram calculadas estatisticamente medidas-resumo (média, quartis, mínimo, máximo e desvio padrão). Foram calculadas também as correlações intraclasse e correlações de Pearson entre o Eixo Y (S-Gn) e linha entre os pontos TS e Pg. Resultados: Apesar de se observar uma baixa reprodutibilidade nas coordenadas, para os pontos CE, Pg e Gn, foi observada alta correlação entre as medidas angulares em questão. Para descrever a inclinação do Eixo Y em função da inclinação da Linha TS e Pg adotou-se um modelo de regressão linear simples descrito pela equação abaixo: Ang Sö- Gn = 0,989 Ang TS Pgi i Conclusões: o uso do Cefalostato Virtual na orientação de Crânios em Tomografia Computadorizada é factível e favorece a reprodução do posicionamento craniano; apesar da baixa reprodutibilidade intra observador dos pontos CE, Pg e Gn, novos critérios tridimensionais na definição destes pontos poderiam aumentar a precisão na sua localização; a alta reprodutibilidade intra observador para os pontos Op, TS e N, sugere que os critérios anatômicos próprios das estruturas estudadas favorecem a sua determinação; o ponto TS apresentou maior reprodutibilidade do que o ponto S, embora esta diferença não tenha sido estatisticamente significante, podendo-se substituir o ponto S pelo TS em estudos futuros; existe alta correlação entre a linha entre os pontos TS e Pg e o Eixo Y; a avaliação do comportamento da inclinação da linha orbitomeática (HF) com relação à linha Básio-Opístio sugere que na presença de alterações cranianas este relacionamento propicie auxílio no diagnóstico das alterações craniofaciais.
Objective: The development of new technology in dental diagnosis by cone beam CT (CBCT) image, made possible and accessible the realization of cephalometric evaluation through volumetric reconstructions of the skull. Scientific parameters with evidence-based are needed to implement its use. Some parameters used in conventional cephalometry (2D) maybe need to be forgotten, others should be adapted, and others still to be created. In this research we propose to create a Virtual Cephalostat orientation of the skull in CT, with the intracranial landmarks, because they are more stable. We propose the creation of landmark TS (Tubercle Sella) and the TS-Pg line to replace the landmark S (Sella) and the Y-axis of growth (Downs), respectively. Furthermore, we propose to use the Basion-Opistion line as a reference for cases of craniofacial asymmetry where is not possible to use the Frankfurt horizontal plane, as in some cases of syndromes that affects the most external landmarks. Methods: 49 skulls of Anatomy Museum of UNIFESP Federal University of São Paulo, were scanned in a CBCT. The analyses were performed in 2 stages, within 1-week space. Statistics measurements were calculated (mean, quartiles, minimum, maximum and standard deviation). We also calculated the intraclass correlations (ICC) and the Pearson correlations between the Y axis (S-Gn) and the line between landmarks TS-Pg. Results: Even if there is a low reproducibility in the coordinates for landmarks EC (Ethmoidal Crest), Pg and Gn it was observed a high correlation between the angular measures in question. To describe the inclination of the Y axis according to the slope of the line adopted TS and Pg a simple linear regression model is used, showed by the equation bellow: Ang Sö- Gn = 0,989 Ang TS Pgi i Conclusions: The use of the Virtual Cephalostat in orientation of skulls using CBCT is feasible and facilitates the reproduction of the skull position, despite the low intra observer reproducibility of landmarks EC, Pg and Gn, new 3D criteria in the definition of these landmarks could increase the precision in its location. The high intra observer reproducibility at the landmarks Op, N and TS, suggests that the anatomical criteria themselves promote their reliability; The TS landmark showed a higher reproducibility than the S landmark, even though the difference was not statistically significant, and it should be replaced by the landmark TS in future studies. There is a high correlation between the TS - Pg line and Y-axis. The relationship between the slope of the HF plane and Ba -Op line suggests that in the presence of the alteration of morphology in craniofacial structure, this relationship offer help in the diagnosis of craniofacial changes.
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Schrader, Michelle. "Assessing the Diagnostic Value of Lateral Cephalometric Radiographs in Class I Dental Malocclusions." Master's thesis, Temple University Libraries, 2019. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/583754.

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Oral Biology
M.S.
Introduction: Controversy exists over the value of a lateral cephalogram for treatment planning in different malocclusion types. Discord has been found in the literature, and no studies on the matter have focused solely on Class I dental malocclusions. The aim of this study was to elucidate whether treatment decisions of extraction or non-extraction and the perceived need for a lateral cephalogram would change depending on whether a lateral cephalogram was provided or eliminated in the patient record set. Methods: A survey was distributed to a random sample of AAO members. The survey consisted of four different patient record sets, each with a Class I dental malocclusion. Each record set had two versions—one with the lateral cephalogram and one without. The survey had randomization of each version of the record sets so that each record set would be viewed an equal number of times with and without its corresponding cephalogram. Subjects were then asked a series of four questions pertaining to each case: was a cephalogram necessary for treatment planning, treatment of extraction versus non-extraction, retention method, and if records were adequate to treatment plan. Results: In total, 79 orthodontists completed the survey. For all cases combined, record sets viewed with the lateral cephalogram had an increase in the: perceived need for a lateral cephalogram, decision of extraction, and opinion of the records being adequate to treatment plan. All were statistically significant at P ≤ 0.001. For each record set, the difference in perceived need for a lateral cephalogram was statically significant. Conclusions: The use of a lateral cephalogram for diagnosing and treatment planning seems to hold value in Class I dental malocclusions, justifying radiation exposure for this diagnostic record. Additionally, the perceived need for a lateral cephalogram is greater when it is presented with the record sets, demonstrating the diagnostic value this radiograph holds.
Temple University--Theses
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AUDIN-OLIVAUX, AUDIN PASCALE. "Contribution a la modelisation des contours deformables : application a l'analyse de cephalogrammes en orthodontie." Besançon, 1995. http://www.theses.fr/1995BESA2007.

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Les travaux presentes dans ce memoire de these concernent la definition d'un ensemble de modeles coherents, pour l'identification semi-automatique des points cephalometriques figurant sur des radiographies du profil de la face, en orthodontie. Le systeme de reconnaissance de formes que nous proposons est base sur l'utilisation d'un modele de contours deformables associes aux contours recherches. L'elaboration de ce systeme nous conduit tout d'abord a definir un modele de prelocalisation des contours deformables et d'estimation de la position des points a identifier, en fonction de l'enrichissement du modele au fur et a mesure de la detection des points. Cette recherche est basee sur un maillage aux elements finis, constitue d'elements barre. Lors de la phase de pretraitement d'une radiographie, la forme du maillage est adaptee au profil cranien etudie, a partir des conditions limites portant sur trois points, et d'un modele d'adaptation de formes. Les modeles de contours deformables, judicieusement lies au maillage, sont prepositionnes sur l'image en mode solide puis se deforment sous l'action d'efforts exerces par les gradients des niveaux de gris de l'image. Les deformations du contour sont operees en exploitant la theorie des poutres en resistance des materiaux, a partir de l'equation differentielle de la deformation de la ligne moyenne d'une poutre soumise a un torseur d'efforts
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Marchiori, Geraldo Eugênio. "AVALIAÇÃO DENTOESQUELÉTICA E TEGUMENTAR DA RETRAÇÃO ANTERIOR EM DUAS FASES." Universidade Metodista de São Paulo, 2012. http://tede.metodista.br/jspui/handle/tede/1209.

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The present study consisted of evaluating dental, skeletal and tegumentary changes promoted by fixed orthodontic treatment with two-step retraction anterior, by means of lateral cephalograms. To this end, we selected 14 patients who required extraction of four premolars, all with Class I malocclusion. The anterior retraction was performed by the retraction of canine (prior to incisors bonding) and of incisors. Twelve patients did not use any device for anchoring. Lateral cephalograms were examined at the beginning and end of canine retraction and by the end of the fixed orthodontic treatment. Cephalograms were scanned to obtain cephalometric measurements using the software Radiocef® (RadiomemoryR- Belo Horizonte, Brazil). Data were submitted to analysis of variance and Tukey s test (p<0.05). Results indicated few skeletal changes, except for a slight retraction of the point A, and increase in mandibular length, in lower-anterior and total facial height, and slight mandibularcounterclockwiserotation due to the craniofacial growth. After canine retraction, there was a lingual inclination and retrusion of upper and lower incisors, which remained stable to the upper incisors at the end of the treatment. In the same period,the lower incisors retruded with a slope similar to the initial. Besides that, no significant loss of anchoring was detected. These dental changes resulted in retrusion of upper and lower lips after canine retraction, and the lower lip continued to retract by the end of the treatment. In conclusion, the treatment using two-step retraction anterior did not lead to a significant loss of anchoring, and reduced the facial convexity.
O objetivo do presente estudo consistiu em avaliar as alterações dentoesqueléticas e tegumentares promovidas pelo tratamento ortodôntico fixo com a retração anterior em duas fases, por meio de telerradiografias em norma lateral. Foram selecionados 14 pacientes com idade média de 14,6 anos que necessitavam de extrações dos quatro primeiros pré-molares, todos apresentando má oclusão de Classe I. A retração anterior foi realizada inicialmente pela retração dos caninos (previamente à colagem dos incisivos) e subsequentemente, pelos incisivos. Doze pacientes não utilizaram qualquer dispositivo para ancoragem e dois pacientes utilizaram como ancoragem o Arco Extra-Bucal (AEB) de uso noturno. Foram avaliadas as telerradiografias em norma lateral ao início, final da retração dos caninos e final de tratamento ortodôntico fixo. As telerradiografias foram escaneadas e mensuradas por meio do programa Radiocef® (RadiomemoryR- Belo Horizonte, Brasil). Os dados foram submetidos à Análise de Variância e teste de Tukey (p<0,05). Os resultados demonstraram poucas alterações esqueléticas, exceto por uma retrusão suave do ponto A e aumento do comprimento mandibular, da altura facial ântero-inferior e total e rotação suave anti-horária mandibular devido ao crescimento craniofacial. Após a retração dos caninos, houve uma inclinação para lingual e retrusão dos incisivos superiores e inferiores, que permaneceram estáveis para os incisivos superiores no período final de tratamento. Já os incisivos inferiores neste mesmo período, retruíram mais com uma inclinação semelhante àquela inicial. Além disso, não houve perda de ancoragem de forma estatisticamente significante. Estas alterações dentárias refletiram em retrusão dos lábios superior e inferior após a retração dos caninos, sendo que o lábio inferior continuou a retrair no período final de tratamento. Conclui-se que o tratamento com a retração em duas fases não representou perda de ancoragem estatisticamente significante, além de diminuir a convexidade facial.
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Chen, Yan-Ting, and 陳彥廷. "Automatic analysis of landmarks in cephalograms." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/35505194542821042163.

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Samra, Ramandeep. "Heritability of nasal characteristics using lateral cephalograms." Thesis, 2018. https://hdl.handle.net/2144/31313.

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BACKGROUND: Growth of the cranial base and its structures are of particular interest to the orthodontic community. The midface and nasal bones have a significant influence on facial esthetics and thus pattern recognition of facial growth from parental data can influence orthodontic treatment plans. We aimed to determine if there is a similarity in midface and nasal bone and soft tissue growth between a child and either parent. MATERIALS AND METHODS: This cross-sectional study was comprised of forty-seven western European families from the Forsyth/Moorrees Twin Study. The lateral cephalograms of each parent and post pubertal child, who were at least 2 years past peak growth (age ≥ 16 yrs for females and ≥ 17 yrs for males) were evaluated on fourteen cephalometric variables. The radiographs were digitized and analyzed using the Mimics™ software program (Materialise, Leuven, Belgium) by a single investigator. A linear regression analysis was used to correlate linear and angular measurements to one another. An ANOVA with multiple comparisons (TUKEY) was performed to test for the differences between family members controlling for the effect of the individual family (as each family has a trend within itself). Age and gender interactions were tested for in the models. Statistical significance was set at p < 0.05. RESULTS: Twenty-five male and twenty-two female children and their parents were studied. When comparing the fourteen parameters between the mean of the child and both parents, a significant difference (p < 0.05) was found between the child and the father but not the mother in six measurements. These included the ratio of nasal height to total face height, angle of nasal bone to SN, distance from rhinion to pronasale (mm), distance from ANS to pronasale (mm), projection of nose (mm) and nasal length (mm). A significant difference was also found between the child and the mother, but not the father for rhinion to ANS (mm). A significant difference was found between the child and both parents for nasal height (mm). When controlling for family and isolating the gender of the child, males and females were not significantly different from their fathers for ratio of nasal height to total face height. For angle of nasal bone (S-N-Rh) and nasal length (N’-vertical line from Pro), females but not males were significantly different from the father. Both girls and boys were still significantly different from the father in the rhinion to pronasale and ANS to pronasale distances, projection of nose and nasal heights. Only males showed a significant difference from the mother for rhinion to ANS and nasal height when isolated for by gender. CONCLUSION: Statistically significant differences were found between the child and father and not the mother for six out of our fourteen measurements of interest. Two measurements of interest showed a difference between the child and the mother and not the father and one showed a significant difference from both parents. From this study we conclude that children tend to be morphologically less similar to their fathers when comparing midface and nasal soft and hard tissue parameters.
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Xu, Zhong-Qin, and 許忠欽. "3D reconstruction of landmarks on cephalograms and contour of human head." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/89877870570435816012.

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Books on the topic "Cephalograms"

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Yan, Chi Kan. Automation of three-dimensional landmarking of cephalograms. 1986.

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Book chapters on the topic "Cephalograms"

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Levy-Mandel, A. D., J. K. Tsotsos, and A. N. Venetsanopoulos. "Knowledge-Based Landmarking of Cephalograms." In Computer Assisted Radiology / Computergestützte Radiologie, 473–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-52247-5_75.

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Giordano, Daniela, Rosalia Leonardi, Francesco Maiorana, Gabriele Cristaldi, and Maria Luisa Distefano. "Automatic Landmarking of Cephalograms by Cellular Neural Networks." In Artificial Intelligence in Medicine, 333–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11527770_46.

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West, K. D., T. T. Farman, J. P. Scheetz, A. Silveira, B. E. Johnson, and A. G. Farman. "Image post-processing for optimization of photostimulable phosphor cephalograms." In CARS 2002 Computer Assisted Radiology and Surgery, 1115. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56168-9_264.

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Kafieh, Rahele, Saeed Sadri, Alireza Mehri, and Hamid Raji. "Discrimination of Bony Structures in Cephalograms for Automatic Landmark Detection." In Communications in Computer and Information Science, 609–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-89985-3_75.

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Zhong, Zhusi, Jie Li, Zhenxi Zhang, Zhicheng Jiao, and Xinbo Gao. "An Attention-Guided Deep Regression Model for Landmark Detection in Cephalograms." In Lecture Notes in Computer Science, 540–48. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32226-7_60.

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Anthofer, R., C. Krenkel, and H. Matras. "Influence of Sphenoidal Sinus Size on the Sella Angle in Lateral Cephalograms." In Surgery of the Sellar Region and Paranasal Sinuses, 51–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76450-9_8.

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Zhang, Yungeng, Yuru Pei, Haifang Qin, Yuke Guo, Gengyu Ma, Tianmin Xu, and Hongbin Zha. "Temporal Consistent 2D-3D Registration of Lateral Cephalograms and Cone-Beam Computed Tomography Images." In Machine Learning in Medical Imaging, 371–79. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00919-9_43.

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Watcharinporn, Orrathai, Surachai Dechkunakorn, Niwat Anuwongnukroh, Chanjira Sinthanayothin, Peerapong Santiwong, Wisarut Bholsithi, and Wanna Suchato. "Assessment of the Accuracy and Reliability of Cephsmile v.2 in Cephalograms and Model Measurements." In Lecture Notes in Electrical Engineering, 413–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27323-0_52.

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Ţărmure, V., O. C. Almăşan, D. Buhăţel, A. Ilea, P. Jiman, M. Iancu, and A. Pop. "Importance of Lateral Cephalogram in Treating Class III Patients." In International Conference on Advancements of Medicine and Health Care through Technology; 5th – 7th June 2014, Cluj-Napoca, Romania, 23–26. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07653-9_5.

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Conference papers on the topic "Cephalograms"

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Pei, Yuru, Bin Liu, Hongbin Zha, Bing Han, and Tianmin Xu. "Anatomical Structure Sketcher for Cephalograms by Bimodal Deep Learning." In British Machine Vision Conference 2013. British Machine Vision Association, 2013. http://dx.doi.org/10.5244/c.27.102.

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Zegan, Georgeta, and Cristina Gena Dascalu. "The accuracy of manual and digital measurements on conventional lateral cephalograms." In 2013 E-Health and Bioengineering Conference (EHB). IEEE, 2013. http://dx.doi.org/10.1109/ehb.2013.6707367.

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Pei, Yuru, Fanfan Dai, Tianmin Xu, Hongbin Zha, and Gengyu Ma. "Volumetric reconstruction of craniofacial structures from 2D lateral cephalograms by regression forest." In 2016 IEEE International Conference on Image Processing (ICIP). IEEE, 2016. http://dx.doi.org/10.1109/icip.2016.7533121.

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Tam, W. K., and H. J. Lee. "Improving point registration in dental cephalograms by two-stage rectified point translation transform." In SPIE Medical Imaging, edited by David R. Haynor and Sébastien Ourselin. SPIE, 2012. http://dx.doi.org/10.1117/12.910935.

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Kaur, A. "Smoothing cephalographs using modified anisotropic diffusion filter." In 2009 International Multimedia, Signal Processing and Communication Technologies (IMPACT-2009). IEEE, 2009. http://dx.doi.org/10.1109/mspct.2009.5164192.

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Guo, Jia, Shumeng Wang, and Huiqi Li. "Automatic Calculation of Resolution in Lateral Cephalogram Based on Scale Mark Detection." In 2019 12th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI). IEEE, 2019. http://dx.doi.org/10.1109/cisp-bmei48845.2019.8965667.

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Liu, Junyuan, Wei wang, Siwan Shen, and XiaoMing Jiang. "A New Lateral Cephalogram Image Stitching Technique Using Gaussian Mixture Model and Normalized Cross-Correlation." In 2021 IEEE 5th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC). IEEE, 2021. http://dx.doi.org/10.1109/iaeac50856.2021.9390708.

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