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Journal articles on the topic 'Gonion'

Author: Grafiati

Published: 3 June 2025

Last updated: 20 July 2025

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1

Nafiiyah, Nur, Ayu Ismi Hanifah, Edy Susanto, et al. "Nonlinear regression analysis to predict mandibular landmarks on panoramic radiographs." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 2 (2025): 2098. https://doi.org/10.11591/ijece.v15i2.pp2098-2108.

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An automatic system for determining mandibular landmark points on panoramic radiography can reduce errors due to differences in expert professionalism and save time. Previous research has shown that the linear regression method is ineffective at predicting condyle and gonion landmark points in panoramic radiography. So, this research proposes an analysis of nonlinear regression methods (support vector machine (SVM) kernel=‘polynomial’, polynomial regression, ensemble regression) for predicting condyle and gonion landmark points. There are four predicted landmark points, namely the right condyl

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Nafiiyah, Nur, Ayu Ismi Hanifah, Edy Susanto, et al. "Nonlinear regression analysis to predict mandibular landmarks on panoramic radiographs." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 2 (2025): 2098–108. https://doi.org/10.11591/ijece.v15i2.pp2098-2108.

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An automatic system for determining mandibular landmark points on panoramic radiography can reduce errors due to differences in expert professionalism and save time. Previous research has shown that the linear regression method is ineffective at predicting condyle and gonion landmark points in panoramic radiography. So, this research proposes an analysis of nonlinear regression methods (support vector machine (SVM) kernel=‘polynomial’, polynomial regression, and ensemble regression) for predicting condyle and gonion landmark points. There are four predicted landmark points, namely

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Pant, Bashu Dev, Anjana Rajbhandari, Resina Pradhan, Manju Bajracharya, and Surendra Maharjan. "Cranial Base Measurements in Skeletal Malocclusion among Orthodontic Patients." Journal of Nepal Health Research Council 21, no. 3 (2024): 486–90. http://dx.doi.org/10.33314/jnhrc.v21i3.4752.

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Background: Facial growth and development is necessary for proper orthodontic diagnosis and treatment planning. Growth of cranial base is linked to the overall growth of facial bones, especially the maxilla and mandible. Any change in the amount and direction of growth of the cranial base can have direct or indirect effects on the developing maxilla and mandible. Thus the aim of this study was to determine the linear and angular cranial base measurements in different skeletal malocclusion in Nepalese population.Methods: Pretreatment lateral cephalograms of 225 patients aged between 17-30 years

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Gionhaku, N., and A. A. Lowe. "Relationship Between Jaw Muscle Volume and Craniofacial Form." Journal of Dental Research 68, no. 5 (1989): 805–9. http://dx.doi.org/10.1177/00220345890680051001.

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To study the relationship between craniofacial form and jaw muscle function, we evaluated 25 adult male subjects with Obstructive Sleep Apnea (age, 30-61 years; weight, 58-122 kg) on the basis of CT scans obtained for routine diagnostic purposes. All scans were obtained with the Frankfort horizontal plane at right angles to the floor; each CT slice was 8 mm thick. Masseter and medial pterygoid muscle outlines were traced, digitized, and stored, and three-dimensional reconstructions were made for calculation of muscle volume. Lateral cephalometric radiographs were analyzed for quantification of

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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 (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

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PUTRA, AGUNG EKO CAHYA KUSUMA, NI NYOMAN WIRASITI, and IRIANI SETYAWATI. "VARIASI BENTUK WAJAH LAKI-LAKI DAN PEREMPUAN DARI DESA PANGLIPURAN, KABUPATEN BANGLI, PROVINSI BALI." Jurnal Biologi Udayana 21, no. 2 (2017): 56. http://dx.doi.org/10.24843/jbiounud.2017.vol21.i02.p03.

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This research determined male and female face type of the adults in Panglipuran adults. The analysis of face types Geometric Morphometric Technique in thin-plate-splin (tps) program. Adults female and 14 male aged 25-35 years old were photographed for both frontal and lateral faces with a digital camera Canon EOS 60D. Landmark data was processed by photo processor program tpsDig version 2.04, tpsSuper version 1.13, tpsRelw version 1.42, tpsSplin 1.20 and both of ape and gee package of R Program version 3.2.5. The average of male’s face shape type in Panglipuran village was ellipse and round fo

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Almășan, Oana, Daniel-Corneliu Leucuța, and Smaranda Buduru. "Disc Displacement of the Temporomandibular Joint and Facial Asymmetry in Children and Adolescents: A Systematic Review and Meta-Analysis." Children 9, no. 9 (2022): 1297. http://dx.doi.org/10.3390/children9091297.

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Subjects with facial skeletal asymmetries have a higher incidence of anterior temporomandibular joint disc displacement. The objective of the study was to consolidate existing evidence on the connection between temporomandibular joint disc displacement and mandibular asymmetry in youngsters and adolescents. A thorough examination was undertaken in the following databases: PubMed, Scopus, EMBASE, Web of Science, and Cochrane. To judge the publications’ methodological quality Newcastle Ottawa Scale was used. From the 1011 identified records, eight were selected for the qualitative synthesis and

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Hiratsuka, Ken, and Shigeo Osato. "Variations in corpus and ramus measurements based on gonial angles in adult complete dentate mandibles." European Journal of Anatomy 27, no. 4 (2023): 383–94. http://dx.doi.org/10.52083/awym4087.

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This study aimed to reveal differences in the mandibular corpus and ramus measurements, volume (VOM), and gross weight of the mandible (GWOM) between the low and high gonial angles (L-GA and H-GA, respectively) in adult mandibles, and to evaluate the correlations between GAs and the measurement variables. Twenty-nine dried adult human complete dentate mandibles (L-GA ≤ 120°: 13 mandibles; H-GA: 125° ≥ GA: 16 mandibles) were measured using a lateral radiograph image-processing system, digital Vernier calipers, and an electric balance. The total length of the mandible (TLOM), corpus length (ment

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Baratieri, Carolina, Matheus Alves Jr, Eduardo Franzotti Sant’anna, Matilde da Cunha Gonçalves Nojima, and Lincoln Issamu Nojima. "3D mandibular positioning after rapid maxillary expansion in Class II malocclusion." Brazilian Dental Journal 22, no. 5 (2011): 428–34. http://dx.doi.org/10.1590/s0103-64402011000500014.

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This study investigated, using cone beam computed tomography (CBCT), the spatial mandibular positioning after rapid maxillary expansion (RME) in Class II Division 1 malocclusion. This prospective study evaluated 17 children (mean initial age 10.36 years old) presenting Class II, Division 1 malocclusion and skeletal maxillary constriction that underwent to RME Haas’ protocol. CBCT was performed before treatment (T1), immediately after the stabilization of expander screw (T2) and after the retention period of 6 months (T3). The scans were managed in Dolphin Imaging® 11.0 software, where landmark

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Urîtu, Andrei, Ciprian Roi, Alexandra Roi, et al. "Imaging Retrospective Study Regarding the Variability of the Osseous Landmarks for IAN Block." Journal of Clinical Medicine 14, no. 2 (2025): 636. https://doi.org/10.3390/jcm14020636.

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Background/Objectives: The aim of this study is to identify the most accurate and consistent landmarks for determining the precise location of the mandibular foramen (MF) and the mandibular ramus, suggesting appropriate adjustments to anesthesia techniques based on these variations in order to improve the success rate of the inferior alveolar nerve (IAN) block. Methods: CT scans of the mandibles from 100 patients were analyzed to measure the distance between the MF and various landmarks, including the sigmoid notch, gonion, posterior and anterior margins of the ramus, temporal crest, and the m

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Zhou, J., Y. Lu, X. H. Gao, et al. "The Growth Hormone Receptor Gene is Associated with Mandibular Height in a Chinese Population." Journal of Dental Research 84, no. 11 (2005): 1052–56. http://dx.doi.org/10.1177/154405910508401116.

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Genetic influences are important in the determination of mandibular morphology, and growth hormone receptor ( GHR) is believed to have an important influence on the growth of craniofacial bone. In this study, we used quantitative trait locus methods to evaluate the relationship between craniofacial morphology and single-nucleotide polymorphisms (SNPs) in GHR in an unselected healthy Chinese population. We systematically screened the 10 exons and nearby introns of GHR and identified 6 SNPs. Using 4 SNPs as markers, we studied the relationships between genotypes and craniofacial linear measureme

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Jacono, Andrew A., Lucas M. Bryant, and Nigar N. Ahmedli. "A Novel Extended Deep Plane Facelift Technique for Jawline Rejuvenation and Volumization." Aesthetic Surgery Journal 39, no. 12 (2018): 1265–81. http://dx.doi.org/10.1093/asj/sjy292.

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Abstract Background Jawline aging is a complex process. We believe loss of posterior jawline definition and volume depletion is an underappreciated factor in the aging face. Objectives The aim of this study was to describe a novel composite, rotational flap modification of an extended deep-plane rhytidectomy. We evaluated long-term efficacy on improving jawline contour and volumization of the posterior mandibular region overlying the gonial angle. Methods We performed a prospective study on patients who underwent our modification of extended deep-plane rhytidectomy. We define and introduce the

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Valletta, Rosa, Roberto Rongo, Ada Carolina Pango Madariaga, Roberta Baiano, Gianrico Spagnuolo, and Vincenzo D’Antò. "Relationship between the Condylion–Gonion–Menton Angle and Dentoalveolar Heights." International Journal of Environmental Research and Public Health 17, no. 9 (2020): 3309. http://dx.doi.org/10.3390/ijerph17093309.

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An accurate estimation of both facial growth and the dentoalveolar dimension is key to successful treatment. The aim of this study was to analyze the relation between the Condylion–Gonion–Menton angle (CoGoMe^) and dentoalveolar heights in a population of patients from southern Italy. This retrospective study analyzed 270 cephalograms of 115 males (42.1%, mean age 15.5 ± 5.2 years) and 155 females (57.9%, mean age 15.6 ± 5.9 years). The facial divergency was evaluated with the Sella–Nasion and Gonion–Gnation angle (SN^GoGn), mandibular structure with the CoGoMe^, and dentoalveolar heights were

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Tsai, Hung-Huey. "Panoramic radiographic findings of the mandibular growth from deciduous dentition to early permanent dentition." Journal of Clinical Pediatric Dentistry 26, no. 3 (2002): 279–84. http://dx.doi.org/10.17796/jcpd.26.3.962294087538050m.

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The outlines of mandibular rami, condyles, coronoid process, and corpus in panoramic radiographs of normal children from deciduous to early permanent dentition were traced and digitized. Nine linear and four angular measurements were measured. During the observation period, the lengths for all the linear measurements increased, however, the angles for all the angular measurements decreased. The shape of condyle and gonion significantly correlated with the growth of ramus and corpus.

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Kang, Byung Cheol, Min Jong Kim, Hye Sun Park, Sel Ae Hwang, Suk Ja Yoon, and Jae Seo Lee. "Experimental panoramic positioning errors for inducing condylar cutoff and superimposition of cervical vertebrae on the mandibular ramus." Journal of The Korean Dental Association 56, no. 3 (2018): 134–41. http://dx.doi.org/10.22974/jkda.2018.56.3.001.

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Purpose: To measure the head tilting angle creating initial condylar cut-off and to find the head position inducing the superimposition of the cervical vertebrae over the mandibular ramus on panoramic radiograph. Materials and Methods: The panoramic radiographs were taken with Didactic skull on cervical spine model (Scientific GmbH, Hamburg, Germany) using Kodak 8000c Digital Panoramic radiography. For the inherent radiolucency of the plastic skull model, radiopaque 1 mm diameter lead wires were attached along the margin of the mandibular condyle, ramus, mandibular body, cervical vertebrae, an

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Sandler, P. J. "Reproducibility of Cephalometric Measurements." British Journal of Orthodontics 15, no. 2 (1988): 105–10. http://dx.doi.org/10.1179/bjo.15.2.105.

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This cephalometric study was undertaken to compare and contrast the errors involved in taking linear and angular measurements using three different methods; hand instruments on tracing, digitization of tracings, and direct digitization of the radiographs. Of the three methods direct digitization of the radiographs proved to be the most reproducible particularly with angular measurements, although statistically significant differences were rarely found. Tracings were advantageous only with linear measurements involving constructed points such as Gonion and Articulare. Traditional methods of mea

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Thiesen, Guilherme, Maria Perpétua Mota Freitas, Bruno Frazão Gribel, and Ki Beom Kim. "Comparison of maxillomandibular asymmetries in adult patients presenting different sagittal jaw relationships." Dental Press Journal of Orthodontics 24, no. 4 (2019): 54–62. http://dx.doi.org/10.1590/2177-6709.24.4.054-062.oar.

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ABSTRACT Objective: The present study aims at using cone beam computed tomography (CBCT) to analyze the maxillomandibular characteristics present in adults with mandibular asymmetries and different sagittal jaw relationships. Methods: 360 patients were selected and divided into three groups (Class I, Class II, and Class III), with 120 individuals per group. The groups were then subdivided according to the intensity of lateral deviation of the gnathion point, into: 1) relative symmetry, 2) moderate asymmetry, and 3) severe asymmetry. Three planes of reference were established in the CBCT images

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Hedeșiu, Mihaela, Dan George Pavel, Oana Almășan, Sorin Gheorghe Pavel, Horia Hedeșiu, and Dan Rafiroiu. "Three-Dimensional Finite Element Analysis on Mandibular Biomechanics Simulation under Normal and Traumatic Conditions." Oral 2, no. 3 (2022): 221–37. http://dx.doi.org/10.3390/oral2030021.

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The main objective was to examine the biomechanical behavior of the mandible under standardized trauma and to develop models of biomechanical responses when the mandible is subjected to various simulated impacts. A homogenous model based on the bone’s average mechanical properties was used. To simulate external loads on the mandible, forces on the chin, forces in an anteroposterior direction, and forces from the basilar edge were applied. To simulate mandibular biomechanics, we employed a model created in the ANSYS v19.0 software. The skull with the temporomandibular joint (TMJ) from the Grabc

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Jakovljevic, Aleksandar, Emira Lazic, Ivan Soldatovic, Nenad Nedeljkovic, and Miroslav Andric. "Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups." Angle Orthodontist 85, no. 4 (2014): 577–84. http://dx.doi.org/10.2319/062714-463.1.

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ABSTRACT Objective: To analyze radiographic predictors for lower third molar eruption among subjects with different anteroposterior skeletal relations and of different age groups. Materials and Methods: In total, 300 lower third molars were recorded on diagnostic digital orthopantomograms (DPTs) and lateral cephalograms (LCs). The radiographs were grouped according to sagittal intermaxillary angle (ANB), subject age, and level of lower third molar eruption. The DPT was used to analyze retromolar space, mesiodistal crown width, space/width ratio, third and second molar angulation (α, γ), third

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Oshagh, Morteza, Shoaleh Shahidi, Hooman Zarif Najafi, and Maryam Saki. "Panoramic Radiography: A Tool for Evaluation of Orthodontic Patients' Sagittal and Vertical Skeletal Relations." Galen Medical Journal 3, no. 1 (2014): 29–38. http://dx.doi.org/10.31661/gmj.v3i1.199.

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Background: Malocclusion, as a worldwide issue, can cause a lot of problems for patients. Panoramic (PR) and lateral cephalometric (LCR) radiographs are both usually indicated for orthodontic treatments. The aim of this study was to analyze vertical and sagittal parameters of both jaws on PRs and to compare them on LCRs.Materials and Methods: In this cross sectional study, 61 samples from all patients referring to the Department of Orthodontics of Shiraz Dental School were selected by simple randomized sampling method, meeting specific inclusion and exclusion criteria. Correlations between var

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Sonwane, Siddharth, and Shweta Rajendra Kamble. "The Correlation between Quantitative Cervical Vertebral Maturation and Mandibular Dimensions in Children Aged 8-16 Years: A Cross-Sectional Analytical Study." Journal of Medical Research and Surgery 4, no. 4 (2023): 75–79. http://dx.doi.org/10.52916/jmrs234113.

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Background: During growth modification, the mandible plays a crucial role in functional orthopaedic treatment. To maximize the efficacy and efficiency of functional appliance therapy, one must know when to initiate treatment. To maximize the efficacy and efficiency of functional appliance therapy, one must know when to initiate treatment. To accurately determine when to initiate functional appliance therapy, the contemporary maturity indicators utilised are subjective with poor reproducibility and validity. Quantitative cervical vertebral maturity indicators are quantitative with good reproduc

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Sood, Shweta, Sanjay Mittal, Isha Aggarwal, Merry Goyal, Abida Parveen, and Pallavi Vishvkarma. "Comparing Four Cephalometric Methods Used to Evaluate the Change in the Lower Incisor Inclination." Journal of Interdisciplinary Dentistry 14, no. 1 (2024): 26–31. http://dx.doi.org/10.4103/jid.jid_48_23.

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Aim: The assessment of change in the lower incisor inclination using cephalometry during any orthodontic treatment is used to determine the treatment outcome. The inclination change is measured using the lower border of the mandible even though it is subjected to remodeling in growing children. We have used Bjork’s superimposition technique using “stable structures” to eliminate these growth changes. In this study, we have evaluated if there is any major difference between three routinely used methods to estimate the lower incisor inclination change influenced by orthodontic treatment (gonion-

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Aristizábal-Hoyos, JA, J. Mulett-Vásquez, JM Agudelo-Gómez, MF Castillo-Vega, JL Mayor-Toro, and OP López-Soto. "Reabsorción del reborde alveolar posterior después de 7 años de uso de una sobredentadura mandibular." Avances en Odontoestomatología 38, no. 4 (2022): 143–50. http://dx.doi.org/10.4321/s0213-12852022000400003.

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RESUMEN La sobredentadura retenida por dos implantes es una opción para la rehabilitación del edentulismo, pero no se ha estudiado a profundidad su efecto sobre el mantenimiento de la altura del reborde alveolar posterior. El objetivo de este trabajo fue determinar los cambios en altura del reborde alveolar posterior mandibular después de 7 años del uso de una sobredentadura mandibular. Este estudio descriptivo consideró 17 pacientes. Cada paciente había recibido una sobredentadura mandibular retenida por dos implantes no ferulizados cargados de forma inmediata y unidos mediante ajustes en bol

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Aziza, Fidela D., Setyawan Bonifacius, and Lusi Epsilawati. "Mandibular cortical bone height in bruxism patients based on gonion and antegonial index." Journal of Dentomaxillofacial Science 6, no. 3 (2021): 156. http://dx.doi.org/10.15562/jdmfs.v6i3.1046.

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Supriya, P. Satpute, R. Nikam Vasudha, R. Mujawar Tohid, and Desai Manjiri. "CRANIOFACIAL MEASUREMENTS IN MAHARASHTRA POPULATION - A CEPHALOMETRIC STUDY." International Journal of Applied and Advanced Scientific Research 3, no. 1 (2018): 257–60. https://doi.org/10.5281/zenodo.1233594.

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The aim of the study was to establish cephalometric standards in adult Maharashtra population. The present study included 100 males (age between 18-25 years) and 100 females (age between 18-25years).All individuals included in the study were residing in Maharashtra since their three to four generations. All subjects had class I malocclusion and normal growth and development. Maxillary and Mandibular arches were well aligned in all participants. Bony landmark used were Nasion(N), Sella(S), Gonion(Go), Pogonion(Po), Gnathion (Gn), Articulare(Ar) and Menton(Me). With the help of these landmarks,

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Kim, Da In, and Manuel O. Lagravère. "Assessing the Correlation between Skeletal and Corresponding Soft-Tissue Equivalents to Determine the Relationship between CBCT Skeletal/Dental Dimensions and 3D Radiographic Soft-Tissue Equivalents." International Journal of Dentistry 2018 (July 3, 2018): 1–12. http://dx.doi.org/10.1155/2018/8926314.

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Objective. Compare measurements of skeletal and dental areas on the CBCT to the corresponding soft-tissue measures taken from a 3D Facial Scanner. Methods. 30 patients with CBCT and 3D Facial scanner photos were selected from the orthodontic program database. 30 different distance measurements were obtained from CBCT and facial scan. OrthoInsight software was used to obtain the measurements from the facial scan images, and AVIZO software was used for corresponding CBCT landmarks. The Euclidean distance formula was used to determine the distances for the corresponding x, y, and z coordinates of

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Akleyin, Ebru, Yasemin Yavuz, and Ahmet Yardımeden. "Three-Dimensional Modeling and Quantitative Assessment of Mandibular Volume in Ectodermal Dysplasia: A Case Series." Medicina 60, no. 4 (2024): 528. http://dx.doi.org/10.3390/medicina60040528.

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Background and Objectives: Ectodermal dysplasia (ED)—a genetic disorder—is characterized by severe tooth deficiency. We compared the mandibular volume and the sagittal and horizontal mandibular widths between patients with ED (ED group) and individuals without tooth deficiency (control group) using three-dimensional modeling. We hypothesized that the mandibular volume differs in ED cases owing to congenital tooth deficiency. Materials and Methods: We used previously obtained cone-beam computed tomography (CBCT) images of 13 patients with ED. The control group data comprised retrospective CBCT

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Mohammadi, Maryam, Saeed Alinejad, and Farida Abesi. "Jaw bone changes in panoramic radiography in patients with hyperparathyroidism." Journal of Shahrekord University of Medical Sciences 26, no. 3 (2024): 101–7. http://dx.doi.org/10.34172/jsums.909.

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Background and aims: The current investigation aimed to evaluate jaw bone changes, and compare the presence of gonial cortex bone thickness, mental index (MI), lamina dura (LD), lower dental canal, and bone density in panoramic radiography, in patients with hyperparathyroidism. Methods: The present cross-sectional descriptive-analytical study was performed on 17 healthy individuals and 17 patients who suffered from resorptive hypercalciuria in the dialysis center of Shahid Beheshti hospital in Babol in 2018. If patients had two or more decayed teeth, they were referred to a specialized maxillo

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Dagdiya, Monika, Ashok Pakhan, Surekha Dubey, Seema Sathe, and Manish Dagdiya. "Determination of Freeway Space in Completely Edentulous Patients Using Lateral Profile Photographs—In Vivo Study." International Journal of Recent Surgical and Medical Sciences 05, no. 01 (2019): 006–9. http://dx.doi.org/10.1055/s-0039-1688540.

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Abstract Objective This study aims to determine the freeway space (FWS) using lateral profile photograph (LPP) as an adjunct in completely edentulous patients. Materials and Methods In this study, 30 patients in the age group of 45 to 60 years who met with the criteria were included. LPPs were taken for all participants using standard protocol and a duplicate copy was obtained, on which three soft tissue reference points—porion (Stp), gnathion (Stgn), and gonion (Stg)—were marked and joined to form an angle Stp-Stg-Stgn. This angle was correlated with the mean FWS obtained using swallowing. Si

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D’Antò, Pango Madariaga, Rongo, et al. "Distribution of the Condylion-Gonion-Menton (CoGoMe^) Angle in a Population of Patients from Southern Italy." Dentistry Journal 7, no. 4 (2019): 104. http://dx.doi.org/10.3390/dj7040104.

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The condylion-gonion-menton angle (CoGoMe^) is commonly used as a pre-treatment indicator of responsiveness in Class II patients treated with functional appliances. The distribution of this angle in the Caucasian population is still unknown. This study aimed to determine the distribution of the CoGoMe^ and its relationship with age, sagittal jaw relationship (ANPg^), and mandibular inclination (SN^GoGn) in patients from Southern Italy. The sample included 290 subjects (median14 years of age; Interquartile range, IQR, 12–17) with lateral cephalograms taken before the orthodontic treatment. The

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Skripsa, T. H., M. F. Rizal, H. Sutadi, et al. "Relationship between inter-molar, inter-canine, and inter-gonion widths in children aged 6–9 years." Journal of Physics: Conference Series 1073 (August 2018): 022010. http://dx.doi.org/10.1088/1742-6596/1073/2/022010.

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Aufa, Aghitsna Aulia, Rasmi Rikmasari, and Daisy Wulansari. "Differences in mandibular morphology between bruxism and non-bruxism patients based on the Levandoski analysis." Majalah Kedokteran Gigi Indonesia 8, no. 3 (2023): 161. http://dx.doi.org/10.22146/majkedgiind.76015.

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Bruxism is a condition that involves grinding and clenching which can place a large load on the mandible, so it can change the morphology of the mandible. Based on the Levandoski analysis, this study aimed to determine whether there are differences in the mandibular morphology between bruxism and non-bruxism patients. This study was a cross-sectional analytic study conducted on the panoramic radiographic samples of bruxism and non-bruxism patients with a total sample of 30 patients (n = 30) in each group, obtained from the radiographic archives at the Radiology Installation of RSGM Universitas

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Kwak, Hee-Jong, Hae-Jin Park, Yoon-Ji Kim, and Dong-Yul Lee. "Factors associated with long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion." Angle Orthodontist 88, no. 2 (2017): 157–62. http://dx.doi.org/10.2319/042717-282.1.

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ABSTRACT Objectives: This study investigated the long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion and different vertical skeletal patterns. Materials and Methods: A total of 54 patients (20 boys and 34 girls; mean age, 7.7 ± 2.0 years) with Class III malocclusion who were successfully treated with facemask therapy were included in this study. Vertical skeletal changes (overbite depth indicator, angle between the Sella-Nasion (SN) plane and Gonion-Gnathion (GoGn) line, angle between the Frankfort horizontal (FH) plane and mandibular plane,

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Alonso, Maria Beatriz C. C., Arthur R. G. Cortes, Angela J. Camargo, Emiko S. Arita, Francisco Haiter-Neto, and Plauto Christopher A. Watanabe. "Assessment of Panoramic Radiomorphometric Indices of the Mandible in a Brazilian Population." ISRN Rheumatology 2011 (September 14, 2011): 1–5. http://dx.doi.org/10.5402/2011/854287.

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The aim of this study was to evaluate radiomorphometric indices in dental panoramic radiographs in order to identify possible interrelationships between these indices and the sex and age of the patients analyzed. The study included 1287 digital panoramic radiographic images of patients that were grouped into five age groups (1 = age 17–20; 2 = age 21–35; 3 = age 36–55; 4 = age 56–69; 5 = over age 70). Two indices—cortical width at the gonion (GI) and below the mental foramen (MI)—were measured bilaterally in all panoramic radiographs. Statistical analysis was performed with Kruskal-Wallis and

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Ferrario, Virgilio F., Chiarella Sforza, Carlo E. Poggio, Antonio D'addona, and Alberto Taroni. "Fourier Analysis of Cephalometric Shapes." Cleft Palate-Craniofacial Journal 33, no. 3 (1996): 206–12. http://dx.doi.org/10.1597/1545-1569_1996_033_0206_faocs_2.3.co_2.

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Craniofacial growth and development involve both size and shape variations. Shape variations can be assessed independently from size using mathematical methods such as the Fourier series. A method for the reconstruction of outlines starting from selected landmarks and for their Fourier analysis has been developed and applied to analyze the age differences in shape in the tracings of the Bolton standards (lateral view) from 1 to 18 years of age. The size-independent shape of the Bolton standard at 18 years was larger at the chin, at the gonion, and in the anterior cranial base than the shape at

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Dohmoto, A., K. Shimizu, Y. Asada, and T. Maeda. "Quantitative Trait Loci on Chromosomes 10 and 11 Influencing Mandible Size of SMXA RI Mouse Strains." Journal of Dental Research 81, no. 7 (2002): 501–4. http://dx.doi.org/10.1177/154405910208100714.

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Predicting the mandible size before the termination of growth of the maxillofacial bones is essential in pedodontics as well as for the predictions needed for genetic analysis. Here, Quantitative Trait Locus (QTL) analysis was used to detect the chromosomal regions responsible for the mandible length between the menton and gonion in an SMXA recombinant inbred strain of mice. Around the region 60 cM from the centromere in chromosome 10, the logarithm of the odds score showed a higher than suggestive level. Around the regions 13 cM and 16 cM in chromosome 11, two significant QTLs were detected.

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Sadputranto, Seto A., Ani M. Maskoen, Avi Laviana, and Endang Sjamsudin. "Polymorphic Variants across Population of the Growth Hormone Receptor with Mandible Prognathism: A Systematic Review." European Journal of General Dentistry 11, no. 03 (2022): 141–48. http://dx.doi.org/10.1055/s-0042-1759752.

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AbstractGenetic influences are critical for determining mandibular protrusion in class IIImalocclusion cases, and growth hormone receptors (GHRs) are thought to have an essential impact on craniofacial bone growth. This review aimed to assess the association between GHR gene polymorphism variants and mandibular morphology. Studies were extensively searched using PubMed and Google Scholar until December 2020. The study design according to PECOS was: P, class III malocclusion; E, GHR polymorphism; no polymorphism in C, GHR; O, linear dimensional changes in maxillary and mandibular measurements;

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Chandrika, P. Sindhu, Ramya Alla, Yesuratnam Duddu, Kumar Adarsh, Praveen K. Varma, and Prasad Mandava. "Evaluation of Glenoid Fossa Position in Class II Malocclusion Associated with Mandibular Retrusion and Class III Malocclusion Associated with Mandibular Protrusion." Journal of Pharmacy and Bioallied Sciences 16, Suppl 1 (2024): S349—S352. http://dx.doi.org/10.4103/jpbs.jpbs_564_23.

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ABSTRACT Objective: This study examined the glenoid fossa in Class II and Class III malocclusions with mandibular retrusion and protrusion. Materials and Methods: A retrospective investigation examined 60 Class II and 60 Class III cephalometric radiographs. Cephalometric landmarks and glenoid fossa measurements were taken. Statistical analysis contrasted the two malocclusion groups’ glenoid fossas. Results: Class II malocclusion had a much lower mean Sella–Nasion–Condylion (SNCd) angle (glenoid fossa sagittal position) than Class III (14.6° ± 1.9). Class II malocclusion had a lower mean Sella–

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Nelke, Kamil, Klaudiusz Łuczak, Maciej Janeczek, et al. "Methods of Definitive Correction of Mandibular Deformity in Hemimandibular Hyperplasia Based on Radiological, Anatomical, and Topographical Measurements—Proposition of Author’s Own Protocol." International Journal of Environmental Research and Public Health 19, no. 16 (2022): 10005. http://dx.doi.org/10.3390/ijerph191610005.

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In order to fully evaluate and establish the degree of bone overgrowth, various radiological studies are essential in the careful planning of the amount of surgical excision. In the presented paper, the authors use self-designed anatomo-topographical reference points for planning the surgeries. Routine panoramic radiographs and low-dose computed tomography based on anatomical landmarks help in measuring the proportions of mandibular bone overgrowth with the following preoperative anatomical landmarks: (Go-Go), (Go(Right)-Gn), (Go(Left)-Gn), and (Me–Gn). Measurements taken at selected points an

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Mejías Rotundo, Oswaldo, Yngris Araque Uzcátegui, Rafael Concho Castillo, et al. "Precisión en identificación de puntos cefalométricos asistido por computadora: caso residentes de postgrado ortodoncia de la Universidad de Carabobo." ODOUS Científica 22, no. 1 (2021): 19–26. http://dx.doi.org/10.54139/odous.v22i1.78.

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El objetivo de esta investigación fue establecer la precisión en la identificación de puntos cefalométricos de los residentes del postgrado de ortodoncia UC. Se utilizaron 10 radiografías digitalizadas seleccionadas aleatoriamente para ser analizadas mediante trazado asistido por computadora (software Odomax) por 7 residentes del primer año y un ortodoncista como control. Se computaron las coordenadas de la localización de los puntos cefalométricos: S, Na, A, B, Go y Gn. Se realizaron gráficas de dispersión 2D y elipses con 95% de confianza. Se evaluó la precisión en la localización de los pun

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Song, Min Sun, Seong-Oh Kim, Ik-Hwan Kim, Chung-min Kang, and Je Seon Song. "Accuracy of Automatic Cephalometric Analysis Programs on Lateral Cephalograms of Preadolescent Children." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 48, no. 3 (2021): 245–54. http://dx.doi.org/10.5933/jkapd.2021.48.3.245.

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The aim of this study was to evaluate the accuracy of 3 different automatic landmark identification programs on lateral cephalgrams and the clinical acceptability in pediatric dentistry. Sixty digital cephalometric radiographs of 7 to 12 years old healthy children were randomly selected. Fourteen landmarks were chosen for assessment and the mean of 3 measurements of each landmark by a single examiner was defined as the baseline landmarks. The mean difference between an automatically identified landmark and the baseline landmark was measured for each landmark on each image. The total mean diffe

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Querry, R. G., S. A. Smith, M. Strømstad, K. Ide, N. H. Secher, and P. B. Raven. "Anatomical and functional characteristics of carotid sinus stimulation in humans." American Journal of Physiology-Heart and Circulatory Physiology 280, no. 5 (2001): H2390—H2398. http://dx.doi.org/10.1152/ajpheart.2001.280.5.h2390.

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Transmission characteristics of pneumatic pressure to the carotid sinus were evaluated in 19 subjects at rest and during exercise. Either a percutaneous fluid-filled ( n = 12) or balloon-tipped catheter ( n = 7) was placed at the carotid bifurcation to record internal transmission of external neck pressure/neck suction (NP/NS). Sustained, 5-s pulses, and rapid ramping pulse protocols (+40 to −80 Torr) were recorded. Transmission of pressure stimuli was less with the fluid-filled catheter compared with that of the balloon-tipped catheter (65% vs. 82% negative pressure, 83% vs. 89% positive pres

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Savitri, I. T., C. Badri, and L. D. Sulistyani. "The accuracy of three-dimensional fused deposition modeling (FDM) compared with three-dimensional CT-Scans on the measurement of the mandibular ramus vertical length, gonion-menton length, and gonial angle." Journal of Physics: Conference Series 884 (August 2017): 012050. http://dx.doi.org/10.1088/1742-6596/884/1/012050.

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Jha, Kanistika, and Manoj Adhikari. "Effects of modified twin block appliance in growing Class II high angle cases: A cephalometric study." F1000Research 11 (September 12, 2022): 459. http://dx.doi.org/10.12688/f1000research.109040.2.

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Background: Class II malocclusions represent anteroposterior dysplasia usually resulting from mandibular retrusion. Along with a retropositioned mandible, it can be associated with either upward or backward jaw rotation. High angle cases are often associated with a short ramal height, steeper mandibular plane, and large gonial angle. Twin block is a commonly used myofunctional appliance that incorporates bite planes that direct the occlusal forces in a more favorable direction for correction of the retrognathic mandible. We aimed to evaluate skeletal, dental, and soft tissue changes following

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Jha, Kanistika, and Manoj Adhikari. "Effects of modified twin block appliance in growing Class II high angle cases: A cephalometric study." F1000Research 11 (April 25, 2022): 459. http://dx.doi.org/10.12688/f1000research.109040.1.

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Background: Class II malocclusions represent anteroposterior dysplasia usually resulting from mandibular retrusion. Along with a retropositioned mandible, it can be associated with either upward or backward jaw rotation. High angle cases are often associated with a short ramal height, steeper mandibular plane, and large gonial angle. Twin block is a commonly used myofunctional appliance that incorporates bite planes that direct the occlusal forces in a more favorable direction for correction of the retrognathic mandible. We aimed to evaluate skeletal, dental, and soft tissue changes following

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Jha, Kanistika, and Manoj Adhikari. "Effects of modified twin block appliance in growing Class II high angle cases: A cephalometric study." F1000Research 11 (April 23, 2024): 459. http://dx.doi.org/10.12688/f1000research.109040.3.

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Background Class II malocclusions represent anteroposterior dysplasia usually resulting from mandibular retrusion. Along with a retropositioned mandible, it can be associated with either upward or backward jaw rotation. High angle cases are often associated with a short ramal height, steeper mandibular plane, and large gonial angle. Twin block is a commonly used myofunctional appliance that incorporates bite planes that direct the occlusal forces in a more favorable direction for correction of the retrognathic mandible. We aimed to evaluate skeletal, dental, and soft tissue changes following m

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Han, Chung Hee. "Rotation of a Part of the Composite Flap for Simultaneous Gonion Reduction and Malar Augmentation During Rhytidectomy in Asians." Annals of Plastic Surgery 92, no. 3 (2024): 267–73. http://dx.doi.org/10.1097/sap.0000000000003739.

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Background The desired facial shape that Asians aim to achieve through plastic surgery differs from that of westerners. Objectives The author facilitates facial volume deflation by using the rotation of a part of the composite flap to the malar area resulting in volumetric augmentation during rhytidectomy; simultaneously, a volumetric reduction was implemented in the gonion. Methods Extended deep plane rhytidectomy with the rotation of a part of the composite flap was performed in 49 patients, whereas extended deep plane rhytidectomy without the rotation of a part of the composite flap was per

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Babu, Asha Elizabeth, T. Srnivasa Prasad, Hridya M. Menon, Anoop Kurian Mathew, Lipsa Bhuyan, and Roquaiya Nishat. "Assessing the Co-relation between Mandibular Flare and Thickness of Lingual Cortex in Relation to the Third Molars: A Retrospective Cross-sectional Study." Journal of Pharmacy and Bioallied Sciences 16, Suppl 3 (2024): S2857—S2860. http://dx.doi.org/10.4103/jpbs.jpbs_351_24.

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ABSTRACT Aim: To assess the co-relation between mandibular flare and thickness of lingual cortex in relation to the third molars. Materials and Methods: Retrospectively obtained computed tomography (CT) data of 26 patients was used after classifying them into respective skeletal malocclusion groups (classes I, II, and III). Thickness of lingual cortex was measured at crestal, middle, and apical levels in mandibular third molar region. Two angular and two linear measurements were used to measure mandibular flare. Angular measurements included the angle between condylion (Co) and menton (Me), an

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Katru, Sreekar, Prasanth Tumarada, Anusha Gummadi, Basavanthi Kuraganti,, Sai Sravya Panangipalli, and Hari Shanmukha Bytaru. "Evaluation of radio-morphometric indices of mandible using digital panoramic radiography: a radiographic study." International Journal of Dental Materials 05, no. 03 (2023): 63–68. http://dx.doi.org/10.37983/ijdm.2023.5301.

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Background:Bone mineral density (BMD) varies with race, ethnicity, age, and gender. Thus arises the need for population-specific value ranges. Qualitative and quantitative indices of the mandible have also been used for panoramic radiographs to assess bone quality and to observe signs of resorption and osteoporosis.Aim:To measure the radio-morphometric indices in a digital panoramic radiograph and to find the inter-relationship of the indices with the age and sex of the patients. Materials and Methods:The study included 100 digital panoramic radiographic images of patients, and the samples wer

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Obloj, Barbara, Piotr Fudalej, and Zofia Dudkiewicz. "Cephalometric Standards for Polish 10-Year-Olds with Normal Occlusion." Angle Orthodontist 78, no. 2 (2008): 262–69. http://dx.doi.org/10.2319/011207-14.1.

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Abstract Objective: To establish gender-specific normative data for Polish children at the age of 10 years. Materials and Methods: Thirty-nine boys and 34 girls (mean age 10.37, SD = 0.52) of Polish ethnicity were selected based on the following criteria: Class I molar relationship, lack of crossbite or scissor-bite, positive overjet and overbite less than 5 mm, adequate amount of space in both dental arches, no visible asymmetry, and good facial proportions. Lateral cephalograms of each subject were scanned and analyzed with the use of NemoCeph NX2005 software. Descriptive statistics (mean an

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