The measurement of the dimensions of the HEAD.
Surgery of the upper jaw bone usually performed to correct upper and lower jaw misalignment.
A movable fold suspended from the posterior border of the hard palate. The uvula hangs from the middle of the lower border.
A surgical specialty concerned with correcting conditions related to malposition of the jawbones and other related MAXILLOFACIAL ABNORMALITIES (e.g., CLEFT PALATE; RETROGNATHISM).
The anatomical frontal portion of the mandible, also known as the mentum, that contains the line of fusion of the two separate halves of the mandible (symphysis menti). This line of fusion divides inferiorly to enclose a triangular area called the mental protuberance. On each side, inferior to the second premolar tooth, is the mental foramen for the passage of blood vessels and a nerve.
Either one of the two small elongated rectangular bones that together form the bridge of the nose.
A funnel-shaped fibromuscular tube that conducts food to the ESOPHAGUS, and air to the LARYNX and LUNGS. It is located posterior to the NASAL CAVITY; ORAL CAVITY; and LARYNX, and extends from the SKULL BASE to the inferior border of the CRICOID CARTILAGE anteriorly and to the inferior border of the C6 vertebra posteriorly. It is divided into the NASOPHARYNX; OROPHARYNX; and HYPOPHARYNX (laryngopharynx).
The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
The length of the face determined by the distance of separation of jaws. Occlusal vertical dimension (OVD or VDO) or contact vertical dimension is the lower face height with the teeth in centric occlusion. Rest vertical dimension (VDR) is the lower face height measured from a chin point to a point just below the nose, with the mandible in rest position. (From Jablonski, Dictionary of Dentistry, 1992, p250)
One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.
The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.
Disorders characterized by multiple cessations of respirations during sleep that induce partial arousals and interfere with the maintenance of sleep. Sleep apnea syndromes are divided into central (see SLEEP APNEA, CENTRAL), obstructive (see SLEEP APNEA, OBSTRUCTIVE), and mixed central-obstructive types.

Quantitative assessment of the morphology of the pig's head used as a model in surgical experimentation. Part 1: Methods of Measurements. (1/1457)

Thirty-two surface measurements were described for assessment of the effect of complex surgical operations on the skeleton of the face in pigs. The methods of measurements imitate those of anthropometry. The surface measurements can complement cephalometry with data about the changes in the soft tissue and thus improve the documentation of the effect of surgery. This paper can help in the evaluation of complicated osteotomy procedures using the pig as the animal model, for facial reconstruction research in humans.  (+info)

Effect of obesity and erect/supine posture on lateral cephalometry: relationship to sleep-disordered breathing. (2/1457)

Craniofacial and upper airway anatomy, obesity and posture may all play a role in compromising upper airway patency in patients with the sleep apnoea/hypopnoea syndrome. The aim of this study was to investigate the relationship between obesity, facial structure and severity of sleep-disordered breathing using lateral cephalometric measurements and to assess the effect of body posture on cephalometric measurements of upper airway calibre variables in obese and non-obese subjects. Lateral cephalometry was carried out in erect and supine postures in 73 awake male subjects randomly selected from patients referred for polysomnography who had a wide range of apnoea/hypopnoea frequencies (1-131 events x h sleep(-1)). Subjects were divided into non-obese (body mass index (BMI) < 30 kg x m(-2); n=42) and obese (BMI > or = 30 kg x m(-2); n=31) groups. Significant but weak correlations were found between apnoea/hypopnoea index (AHI) and measurements reflecting upper airway dimensions: uvular protrusion-posterior pharyngeal wall (r=-0.26, p<0.05) and hyoid-posterior pharyngeal wall (r=0.26, p<0.05). Multiple regression using both upper airway dimensions improved the correlation to AHI (r=0.34, p=0.01). Obese subjects had greater hyoid-posterior pharyngeal wall distances than non-obese subjects, both erect (42+/-5 versus 39+/-4 mm, respectively (mean+/-SD) p<0.01) and supine (43+/-5 versus 40+/-4 mm, p<0.05). Skeletal craniofacial structure was similar in obese and non-obese subjects. In conclusion, measurements reflecting upper airway size were correlated with the severity of sleep-disordered breathing. Differences in upper airway size measurements between obese and non-obese subjects were independent of bony craniofacial structure.  (+info)

Cephalometric abnormalities in non-obese and obese patients with obstructive sleep apnoea. (3/1457)

The aim of this work was to comprehensively evaluate the cephalometric features in Japanese patients with obstructive sleep apnoea (OSA) and to elucidate the relationship between cephalometric variables and severity of apnoea. Forty-eight cephalometric variables were measured in 37 healthy males and 114 male OSA patients, who were classed into 54 non-obese (body mass index (BMI) <27 kg x m(-2), apnoea-hypopnoea index (AHI)=25.3+/-16.1 events x h(-1)) and 60 obese (BMI > or = 27 kg x m(-2), AHI=45.6+/-28.0 events h(-1)) groups. Diagnostic polysomnography was carried out in all of the OSA patients and in 19 of the normal controls. The non-obese OSA patients showed several cephalometric defects compared with their BMI-matched normal controls: 1) decreased facial A-P distance at cranial base, maxilla and mandible levels and decreased bony pharynx width; 2) enlarged tongue and inferior shift of the tongue volume; 3) enlarged soft palate; 4) inferiorly positioned hyoid bone; and 5) decreased upper airway width at four different levels. More extensive and severe soft tissue abnormalities with a few defects in craniofacial bony structures were found in the obese OSA group. For the non-obese OSA group, the stepwise regression model on AHI was significant with two bony structure variables as determinants: anterior cranial base length (S-N) and mandibular length (Me-Go). Although the regression model retained only linear distance between anterior vertebra and hyoid bone (H-VL) as an explainable determinant for AHI in the obese OSA group, H-VL was significantly correlated with soft tissue measurements such as overall tongue area (Ton), inferior tongue area (Ton2) and pharyngeal airway length (PNS-V). In conclusion, Japanese obstructive sleep apnoea patients have a series of cephalometric abnormalities similar to those described in Caucasian patients, and that the aetiology of obstructive sleep apnoea in obese patients may be different from that in non-obese patients. In obese patients, upper airway soft tissue enlargement may play a more important role in the development of obstructive sleep apnoea, whereas in non-obese patients, bony structure discrepancies may be the dominant contributing factors for obstructive sleep apnoea.  (+info)

Craniofacial modifications in children with habitual snoring and obstructive sleep apnoea: a case-control study. (4/1457)

Habitual snoring and obstructive sleep apnoea in children, which are frequently associated with adenotonsillar hypertrophy, may begin early in life and in relation with orocraniofacial features. The aim of this study was to detect the presence of early bone craniofacial modifications in young children with a long history of habitual snoring. Twenty-six habitually snoring children (mean age 4.6 yrs) were studied by nocturnal portable recording or diurnal polysomnography, cephalometry and orthodontic evaluation. A comparison of cephalometric findings was made between the studied group and 26 age-matched children (mean age 5.1 yrs) with no history of snoring or respiratory problems during sleep. The cephalometric analyses showed a significant increase in craniomandibular intermaxillar, lower and upper goniac angles with a retroposition and posterior rotation of the mandible (high angle face) and a reduction in the rhinopharynx space caused by higher thickness of adenoids in habitually snoring children compared with controls. Cross-bites and labial incompetence as well as daytime symptoms and familiarity for habitual snoring were found in most of the studied group of snorers compared with controls. The results indicate that upper airway obstruction during sleep is associated with mild but significant cephalometric and craniofacial modifications in children complaining of habitual snoring. Whether this skeletal conformation is genetically determined or influenced by the early onset of habitual snoring remains to be assessed.  (+info)

The problem of the class iii malocclusion. (5/1457)

The etiology and treatment of Class III malocclusion has been discussed. The value of electromyographic assessment in the assessment and prediction of Class III malocclusion has been shown.  (+info)

The interfrontal bone and mutant genes in the mouse. (6/1457)

The relationship between corrected skull width and the presence and size of an interfrontal bone is discussed with regard to the effect of certain mutant genes in the mouse known to affect the development of the neural tube. All genes reviewed which increase the incidence of the interfrontal bone and affect the neural tube also change the proportions of the adult skull.  (+info)

Comparison of cephalometric analysis using a non-radiographic sonic digitizer (DigiGraph Workstation) with conventional radiography. (7/1457)

Cephalometric analysis conventionally requires radiographic exposure which may not be compatible with the growing concern over radiation hazards. Recently, the Dolphin Workstation Imaging System introduced to the dental profession a non-radiographic system, called the DigiGraph Workstation which may be an alternative to cephalometric radiography. The aims of this study were to compare the validity and reproducibility of cephalometric measurements obtained from the DigiGraph Workstation with conventional cephalometric radiographs. The sample consisted of 30 human dry skulls. Two replicated sets of lateral cephalograms were obtained with steel ball markers placed at the majority of the cephalometric landmarks. Duplicate tracings prepared from each radiograph were digitized to obtain cephalometric measurements using the computer software, Dentofacial Planner. For the DigiGraph Workstation, double sonic digitizations were repeated twice for each skull, on two occasions. Fifteen angular and one linear measurements were obtained from both methods and these findings compared using ANOVA, paired t-tests and F-tests. All, except one, cephalometric measurement showed significant differences between the two methods (P < 0.0001). The DigiGraph Workstation consistently produced higher values in 11 measurements (mean differences +0.5 to +15.7 degrees or mm) and lower values in four measurements (mean differences -0.2 to -3.5 degrees). The standard deviations of the differences between readings of both methods were large (0.4-5.8 degrees or mm). The reproducibility of the DigiGraph Workstation measurements was lower than that of the radiographic measurements. The method error of the DigiGraph Workstation ranged from 7 to 70 per cent, while that of radiographic tracings was less than 2 per cent. It was concluded that measurements obtained with the DigiGraph Workstation should be interpreted with caution.  (+info)

Arrested eruption of the permanent lower second molar. (8/1457)

The incidence of retention/impaction of the permanent lower second molar (M2inf) lies between 0.6/1000 and 3/1000. Therefore, the purpose of the present study was to investigate the craniofacial morphology, the frequency of dental anomalies and the inclination of the affected M2inf and the adjacent first molar in patients with arrested eruption of M2inf. The overall goal was to elucidate the aetiology of arrested tooth eruption and to present the characteristics of these patients in order to improve diagnosis and treatment planning. Radiographic material (profile radiographs and orthopantomograms) from 19 patients (nine females and 10 males; 13-19 years of age at the time of referral) were analysed. The ages of the patients when profile radiographs were taken for cephalometric analysis varied from 8 to 16 years. The study shows that this group of patients, compared with a reference group, had an increased sagittal jaw relationship (Class II). Specifically, the mandibular prognathism was less, the mandibular gonial angle smaller, the mandibular alveolar prognathism enlarged and the maxillary incisor inclination less than in the reference group. Furthermore, this group of patients had a more frequent occurrence of morphological tooth anomalies, such as root deflections, invaginations, and taurodontism. However, none of the patients with arrested eruption of M2inf had agenesis of the lower third molar. The study did not reveal an association between the degree of inclination of the M2inf and that of the first molar in the same region. The results of this investigation show that conditions such as the craniofacial morphology and deviations in the dentition are associated with arrested eruption of M2inf. Therefore, it is important to evaluate these conditions in future diagnosis and treatment planning of patients with arrested eruption of M2inf.  (+info)

1. Obstructive Sleep Apnea (OSA): This is the most common type of sleep apnea, caused by a physical blockage in the throat, such as excess tissue or a large tongue.
2. Central Sleep Apnea (CSA): This type of sleep apnea is caused by a problem in the brain's breathing control center.
3. Mixed Sleep Apnea: This type of sleep apnea is a combination of OSA and CSA.

The symptoms of sleep apnea syndromes can include:

* Loud snoring
* Pauses in breathing during sleep
* Waking up with a dry mouth or sore throat
* Morning headaches
* Difficulty concentrating or feeling tired during the day

If left untreated, sleep apnea syndromes can lead to serious health problems, such as:

* High blood pressure
* Heart disease
* Stroke
* Diabetes
* Depression

Treatment options for sleep apnea syndromes include:

* Lifestyle changes, such as losing weight or quitting smoking
* Oral appliances, such as a mouthpiece to help keep the airway open
* Continuous positive airway pressure (CPAP) therapy, which involves wearing a mask over the nose and/or mouth while sleeping to deliver a constant flow of air
* Bi-level positive airway pressure (BiPAP) therapy, which is similar to CPAP but delivers two different levels of air pressure
* Surgery, such as a tonsillectomy or a procedure to remove excess tissue in the throat.

It's important to seek medical attention if you suspect you have sleep apnea syndromes, as treatment can help improve your quality of life and reduce the risk of serious health problems.

Ultrasound cephalometry is useful for determining baby growth in utero. Cephalometry can also determine if an unborn child will ... The history of cephalometry (cephalo- + -metry, "head measurement") can be traced through art, science, and anthropology. The ... Thus far, no ill effects have been reported to the fetus or the mother using the ultrasound fetal cephalometry. Cephalometry ... Craniometry, the measurement of the cranium (skull), is a large subset of cephalometry. Cephalometry also has a history in ...
Jacobson, Alien (1995). Radiographic Cephalometry (1st ed.). Chicago: Quintessence Publishing Co, Inc. p. 82. Railsback, RM ( ...
Lewis, Arthur (1950). "The Impact of Cephalometry on Orthodontic Concepts". The Angle Orthodontist. 20 (2): 67-73. ISSN 0003- ...
Taub, Daniel I.; Jacobs, Jordan M. S.; Jacobs, Jonathan S. (2013). "Chapter 16: Anthropometry, cephalometry, and orthognathic ...
... is the clinical application of cephalometry. It is analysis of the dental and skeletal relationships of ...
Swennen, G.R.J.; Schutyser, F.A.C.; Hausamen, J.E. (2005). Three-Dimensional Cephalometry: A Color Atlas and Manual. Springer. ...
Swennen GR, Schutyser F (September 2006). "Three-dimensional cephalometry: spiral multi-slice vs cone-beam computed tomography ...
Porteus focused on cephalometry, linking head size to intelligence, and X-ray studies. Porteus also developed his own nonverbal ...
Cephalometric analysis Cephalometry "Radiographic Cephalometry: From Basics to 3-D Imaging, Second Edition (Book/CD-ROM set)". ...
PA cephalometry, panoramic radiograph, and nuclear imaging are some of the techniques that can be used for diagnosis. Primarily ...
X-rays also may be used to measure precise dimensions of the baby's skull, using a technique called cephalometry.[citation ...
... one of the more popular methods of cephalometric analysis in cephalometry. James A McNamara Jr., is a graduate of the ...
... the most common radiographs taken used to be the dental panoramic tomography and lateral cephalometry. With the advancement in ...
It is a subset of cephalometry, measurement of the head, which in humans is a subset of anthropometry, measurement of the human ...
Stuart Campbell's pioneering work on fetal cephalometry led to it acquiring long-term status as the definitive method of study ...
In 1981 T. Tóth used comparative cephalometry to argue that all Hungarians were racially similar to Ossetians, and as such ...
Allometry Anthropometric cosmetology Biometrics Cephalometry Chironomia Craniometry Dermatoglyphics Genetic fingerprinting ...
... cephalometry MeSH G03.850.505.200.100.400 - crown-rump length MeSH G03.850.505.400 - demography MeSH G03.850.505.400.050 - age ...
... cephalometry MeSH E01.370.600.024.650 - odontometry MeSH E01.370.600.024.690 - pelvimetry MeSH E01.370.600.050 - apgar score ...
360 Cephalometry Biological anthropology History of anthropometry Racialism (Racial categorization) Scientific racism ...
Veerapandiyan A, Blalock D, Ghosh S, Ip E, Barnes C, Shashi V. The role of cephalometry in assessing velopharyngeal dysfunction ...
New 3D Cephalometry module - New improved CMF Surgery module Read more ,. Romexis software release 6.1 Highlights:. - Locking ...
Part 2: three-dimensional cephalometry. Xia, J J; Gateno, J; Teichgraeber, J F; Yuan, P; Li, J; Chen, K-C; Jajoo, A; Nicol, M; ... Comparison of landmark identification in traditional versus computer-aided digital cephalometry. Chen, Y J; Chen, S K; Chang, H ...
Cephalometry - Preferred Concept UI. M0003823. Scope note. The measurement of the dimensions of the HEAD. ...
1. Krogman WM, Sassouni V. A syllabus in roentgenographic cephalometry. Philadelphia: Philadelphia center for research in child ...
Anthropometry, Cephalometry & Cranial trait assessment with sexual dimorphism- a preliminary study. Vedam, V. K. V., Padubidri ...
Oral HealthDisease OutbreaksAir PressureDental Plaque IndexPeriodontal IndexCephalometryDrug ResiduesStatistics, Nonparametric ... IntratrachealSurgical TapeOrthodontic WiresPeriodontal IndexCephalometryLung Volume MeasurementsRespiratory Function Tests ...
Oregon Health & Science University is dedicated to improving the health and quality of life for all Oregonians through excellence, innovation and leadership in health care, education and research.. © 2001-2019 Oregon Health & Science University. OHSU is an equal opportunity affirmative action institution.. Notice of Privacy Practices ...
At the office of Plainfield Pediatric Dental Care and Orthodontics, one of the most common questions parents ask us is which toothpaste is best for...
Oliveira, I. S., Nägele, K., Carlhoff, S., Pugach, I., Koesbardiati, T., Hübner, A., Angermeyer, M., Oktaviana, A. A., Takenaka, M., Katagiri, C., Murti, D. B., Putri, R. S., Mahirta, M., Petchey, F., Higham, T., Higham, C. F. W., OConnor, S., Hawkins, S., Kinaston, R., Bellwood, P., & 5 othersOno, R., Powell, A., Krause, J., Posth, C. & Stoneking, M., 2022, In: Nature Ecology & Evolution. 6, p. 1-19. Research output: Contribution to journal › Article ...
Cephalometry Medicine & Life Sciences 100% * Pharynx Medicine & Life Sciences 84% * Young Adult Medicine & Life Sciences 66% ...
Three-dimensional cephalometry: Spiral multi-slice vs cone-beam computed tomography.. American Journal of Orthodontics and ... A New Method of 3-D Cephalometry Part I: The Anatomic Cartesian 3-D Reference System. ...
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Cephalometry could detect abnormality in 42 out of 60 patients i.e 70% cases in our study. Videofluroscopy showed significant ... Cephalometry and Static Computed Tomography are able to assess anatomic abnormalities in the upper airway but efficacy of ... 1.Evaluation of upper airway obstruction using nasopharyngoscopy videofluroscopy cephalometry and computed tomography ... The patients then underwent Nasopharyngolaryngoscopy, Cephalometry, Non Contrast Computed Tomography and Videofluroscopy. ...
Radiographic cephalometry assessment of the linear and angular parameters on cranial base in children with skeletal class III [ ... Radiographic cephalometry analysis of condylar position after bimaxillary osteotomy in patients with mandibular prognathism [1] ...
... a cone beam computed tomography-based three-dimensional cephalometry analysis. Page:499-504. ...
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Cephalometry. * Dental cone-beam. * DEPARTMENT OF AESTHETIC MEDICINE - COSMETOLOGY * AESTHETIC MEDICINE * Toxin injection ...
Optomed and its partner AEYE Health have a common goal to obtain the US FDA clearance for the handheld AI fundus camera Aurora AEYE. Currently, the companies expect that they are able to address the latest feedback from the FDA in the coming months after which they will revert back to the agency.. Optomed announced the results from the prospective, multi-center clinical trial intended to assess its handheld fundus camera Aurora together with AEYE Healths AI for autonomous detection of more than mild diabetic retinopathy in February 2022. Among patients positive for more-than-mild diabetic retinopathy, the combined product, Aurora AEYE detected 91.9 percent (sensitivity), while patients without the eye disease were correctly identified 93.6 percent of the time (specificity). The observed imageability was over 99 percent.. Optomed CEO, Seppo Kopsala, comments:. "We see an outstanding market opportunity for our hand-held fundus cameras combined with AI in the US market. AEYE Health has the latest ...
Cephalometry. Innovative solutions for e.g. low dose 3D imaging and motion artefact correction. ...
Cephalometry X-ray. Is a. True. Radiographic imaging of bone (procedure). Inferred relationship. Some. ...
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  • This study aimed to compare the gonial angle and alveolar bone height changes between panoramic and lateral cephalometry radiographic images in class II malocclusion patients before and after orthodontic treatment. (ac.ir)
  • 6. Radiation-induced cancer risk in radiographic cephalometry. (nih.gov)
  • Classify works on cephalometry used in dentistry in WU 141. (nih.gov)
  • The patients then underwent Nasopharyngolaryngoscopy, Cephalometry, Non Contrast Computed Tomography and Videofluroscopy. (ijsar.in)
  • Cephalometry and Static Computed Tomography are able to assess anatomic abnormalities in the upper airway but efficacy of detection is less as compared to Nasopharyngolaryngoscopy and Videofluroscopy. (ijsar.in)
  • The methods utilized to make sure the correct unit is manufactured and fitted incorporate: Cephalometry (measurement and study of the proportions of the head and experience), computed tomography, magnetic resonance imaging, video endoscopy and lateral Cephalometry of the affected person with and without having the gadget in their mouth. (fasatrasa.com)
  • Dr. Robert Keirn, Editor of the Journal of Clinical Orthodontics, stated that the future of orthodontics will focus on three main areas: 3D imaging to replace two dimensional cephalometry, self-ligating brackets, and micro-implants as endosseous anchorage. (aoeasteurope.pl)
  • However, panoramic and cephalometry radiography procedures cannot be replaced for assessing the anterior and posterior alveolar bone height. (ac.ir)
  • Yousefi F, Mollabashi V, Bahmani S, Farhadian M. Comparison of gonial angle and alveolar bone height changes in panoramic and lateral cephalometry radiography in growing patients. (ac.ir)
  • 516 boys in period of growth, old from 8 to 20 years, ayant une téléradiographie de profil en occlusion de untreated orthodontically, presumedly orthomorphic and convenance. (who.int)
  • Surface-based 3-dimensional cephalometry: An objective analysis of cranio-mandibular morphology. (bvsalud.org)
  • Cephalometry could detect abnormality in 42 out of 60 patients i.e 70% cases in our study. (ijsar.in)
  • The degree of agreement between professional judgment and cephalometry was found to be 73.08%, and the result of the kappa test was 0.59 (moderate agreement). (bvsalud.org)