Cranial Base Morphology in Different Skeletal Classes : A Cross - Sectional Lateral Cephalometric Study

2013 ◽  
Vol 25 (Speacial Issue 1) ◽  
pp. 108-113
Author(s):  
Bilal I. Abd ◽  
Fakhri A. Ali
Keyword(s):  
Cranial Base ◽  
Cross Sectional ◽  
Cephalometric Study

scholarly journals Posterior cranial base natural growth and development: A systematic review

2017 ◽  
Vol 87 (6) ◽  
pp. 897-910 ◽  
Author(s):  
Kris Currie ◽  
Dena Sawchuk ◽  
Humam Saltaji ◽  
Heesoo Oh ◽  
Carlos Flores-Mir ◽  
...  
Keyword(s):  
Growth And Development ◽  
Age Groups ◽  
Sella Turcica ◽  
Dimensional Change ◽  
Cranial Base ◽  
Current Evidence ◽  
Craniofacial Growth ◽  
Multiple Time ◽  
Natural Growth ◽  
Cross Sectional

ABSTRACT Objective: To provide a synthesis of the published studies evaluating the natural growth and development of the human posterior cranial base (S-Ba). Materials and Methods: The search was performed on MEDLINE, Embase, PubMed, and all EBM Reviews electronic databases. In addition, reference lists of the included studies were hand-searched. Articles were included if they analyzed posterior cranial-base growth in humans specifically. Study selection, data extraction, and risk of bias assessment were completed in duplicate. A meta-analysis was not justified. Results: Finally, 23 published studies were selected: 5 cross-sectional and 18 cohort studies. Articles were published between 1955 and 2015, and all were published in English. The sample sizes varied between 20 and 397 individuals and consisted of craniofacial measurements from either living or deceased human skulls. Validity of the measurements was not determined in any of the studies, while six papers reported some form of reliability assessment. All the articles included multiple time points within the same population or data from multiple age groups. Growth of S-Ba was generally agreed to be from spheno-occipital synchondrosis growth. Basion displaced downward and backward and sella turcica moved downward and backward during craniofacial growth. Timing of cessation of S-Ba growth was not conclusive due to limited identified evidence. Conclusions: Current evidence suggests that S-Ba is not totally stable, as its dimensions change throughout craniofacial growth and a minor dimensional change is observed even in late adulthood.

scholarly journals Length of anterior cranial base and Frankfort horizontal plane: A lateral cephalometric study in 11–16-year-old children

2018 ◽  
Vol 1073 ◽  
pp. 022014
Author(s):  
S B Budiardjo ◽  
A F Karim ◽  
S Indriati ◽  
N A Wahono ◽  
M Suharsini ◽  
...  
Keyword(s):  
Horizontal Plane ◽  
Cranial Base ◽  
Anterior Cranial Base ◽  
Cephalometric Study ◽  
Frankfort Horizontal Plane

scholarly journals The Value of Lateral Cephalometric Variables Measured by Cephalogram in Sex Determining among Iranians

2016 ◽  
Vol 9 (6) ◽  
pp. 214
Author(s):  
Naimeh Farhidnia ◽  
Siamak Soltani ◽  
Kamran Aghakhani ◽  
Sasan Salehi ◽  
Leila Khloosy ◽  
...  
Keyword(s):  
Cranial Base ◽  
Personal Identification ◽  
Effective Length ◽  
Cross Sectional ◽  
Male And Female ◽  
Gonial Angle ◽  
Anterior Nasal Spine ◽  
Specificity And Sensitivity ◽  
Lateral Cephalograms ◽  
Cephalometric Measurements

PURPOSE: Sex determination is one of the most important aspects of the personal identification in forensic medicine. The present study thus aimed to assess the value of cephalogram in determining sex by applying eleven linear and an angular cephalometric variables measured on lateral cephalograms among Iranians.METHODS: In a cross-sectional study, 11 linear and 1 angular cephalometric measurements were studied. Those are: basion to anterior nasal spine, upper facial height, length of cranial base, total face height, frontal sinus height, mastoidale to sella-nasion plan, mastoidale to porion-orbital plan, mastoid height from cranial base, mastoid with at the level of cranial base, mandibular effective length (central condyle to prognation), occipitofrontal diameter, and gonial angle. Measurements were assessed in 150 individuals (75 males and 75 females) aged 25 to 54 years. After preparing lateral cephalograms, the cephalometric measurements were analyzed using PACS software. SPSS version 22.0 was used for analysis. P values of 0.05 or less were considered statistically significant.RESULTS: With the exception of gonial angle, comparison of lateral cephalometric indices between two sexs showed greater values in males than in females (p<0.001). In general, almost all of the cephalometric measurements were found reliable to distinguish between male and female sex skulls with a high sensitivity (100%) and specificity (97.3% to 1000%).CONCLUSION: The cephalometric measurements used in this study are able to differentiate with high specificity and sensitivity between male and female skull

scholarly journals Determination of Sagittal Skeletal Discrepancy through Beta Angle: A Lateral Cephalometric Study

2020 ◽  
Vol 10 (3) ◽  
pp. 40-43
Author(s):  
Farah Saleem ◽  
Zubair H Awiasi
Keyword(s):  
Correct Diagnosis ◽  
Cross Sectional Study ◽  
X Rays ◽  
Class Iii ◽  
Cross Sectional ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Beta Angle ◽  
Third Line ◽  
Cephalometric Study

Introduction: Accurate classification and treatment planning relies on correct diagnosis of skeletal and dentalrelationships. Commonly used measurements used to classify sagittal relationship ANB and Wit’s appraisal are not without potential inherent problems which might lead to less accurate classification of sagittal dysplasia. To avoid these problems, a new approach Beta angle was introduced by Baik in 2004. Beta angle as it involves different landmarks of classifying anterior-posterior relationships is said to be devoid of those problems thus more reliable. We conducted a cross sectional study to measure the angle among patients presenting in Nishtar Institute of Dentistry Multan Pakistan. Materials and Method: Ninety pretreatment cephalometric x-rays of patients between ages 12 to 30 years were selected and studied. They were divided into three classes based on ANB angle and Wit’s appraisal. For the measurement of Beta angle, a line was drawn from the center of condyle (C) to point A and other to point B. A third line joining A to B was drawn. A line from point A perpendicular to line C-B was drawn and angle was measured between this perpendicular and line joining A-B. ANOVA was used to compare means of three groups. Pearson correlational coefficient was used to correlate relationship between Beta angle and ANB angle. Result: The results showed Beta angle ranged between 27° and 34° for class I. Subjects having angle less than 27° can be classified as skeletal class II and those with angles larger than 34° as skeletal class III subjects. Conclusion: Beta angle is reliable method for assessing and classifying sagittal skeletal discrepancies 

Prognostic Indicators for Anterior Mandibular Repositioning in Adolescents with Class II Malocclusion: A Cross-Sectional Cephalometric Study

2020 ◽  
Vol 44 (4) ◽  
pp. 274-282
Author(s):  
Jong-Moon Chae ◽  
Jae Hyun Park ◽  
Seon-Hye Kim ◽  
Utkarsh Mangal ◽  
Hye Young Seo
Keyword(s):  
Soft Tissues ◽  
Class Ii ◽  
Prognostic Indicators ◽  
Class Ii Malocclusion ◽  
Hard Tissue ◽  
Cross Sectional ◽  
Mandibular Plane ◽  
Lateral Cephalograms ◽  
Cephalometric Changes ◽  
Cephalometric Study

Objective: To investigate the cephalometric changes following anterior repositioning of the mandible for predicting the treatment effects in Class II adolescent patients. Study Design: Lateral cephalograms of 28 patients (ANB &gt; 4°) were taken in centric occlusion (CO) and edge-to-edge bite (EtoE) before orthodontic treatment. The patients were classified into two groups according to their mandibular plane angle [MPA; low MPA (LMPA) ≤ 28° and high MPA (HMPA) &gt; 28°]. Cephalometric changes of hard and soft tissues were measured and analyzed with an x-y cranial base coordinate system. Results: For CO to EtoE, there were no significant cephalometric changes between HMPA and LMPA, but the horizontal ratio of soft to hard tissue pogonion (H-Pog′/H-Pog) change was significantly greater with LMPA than with HMPA while the vertical ratio (V-Pog′/V-Pog) showed vice versa. For CO to EtoE, MPA showed significant correlations with H-Pog′/H-Pog and V-Pog′/V-Pog. Y-axis angle, V-Pog′/V-Pog and H-Pog′/H-Pog can be used as good tools to discriminate between HMPA and LMPA. Conclusion: Cephalometric findings for CO to EtoE may be useful in predicting the vertical and horizontal changes of hard and soft tissues with the treatment of growing adolescents having various vertical skeletal patterns of Class II malocclusion.

scholarly journals Cranial base pathology in pediatric osteogenesis imperfecta patients treated with bisphosphonates

2015 ◽  
Vol 15 (3) ◽  
pp. 313-320 ◽  
Author(s):  
Heidi Arponen ◽  
Ilkka Vuorimies ◽  
Jari Haukka ◽  
Helena Valta ◽  
Janna Waltimo-Sirén ◽  
...  
Keyword(s):  
Osteogenesis Imperfecta ◽  
Cranial Base ◽  
Basilar Invagination ◽  
Craniocervical Junction ◽  
Normative Values ◽  
Bisphosphonate Treatment ◽  
Basilar Impression ◽  
Duration Of Treatment ◽  
Cross Sectional ◽  
Kaplan Meier

OBJECT Cranial base pathology is a serious complication of osteogenesis imperfecta (OI). Our aim was to analyze whether bisphosphonate treatment, used to improve bone strength, could also prevent the development of craniocervical junction pathology (basilar impression, basilar invagination, or platybasia) in children with OI. METHODS In this single-center retrospective study the authors analyzed the skull base morphology from lateral skull radiographs and midsagittal MR images (total of 94 images), obtained between the ages of 0 and 25 years in 39 bisphosphonate-treated OI patients. The results were compared with age-matched normative values and with findings in 70 OI patients who were not treated with bisphosphonates. In addition to cross-sectional data, longitudinal data were available from 22 patients with an average follow-up period of 7.6 years. The patients, who had OI types I, III, IV, VI, and VII, had been treated with zoledronic acid, pamidronate, or risedronate for 3.2 years on average. RESULTS Altogether 33% of the 39 bisphosphonate-treated patients had at least 1 cranial base anomaly, platybasia being the most prevalent diagnosis (28%). Logistic regression analysis suggested a higher risk of basilar impression or invagination in patients with severe OI (OR 22.04) and/or older age at initiation of bisphosphonate treatment (OR 1.45), whereas a decreased risk was associated with longer duration of treatment (OR 0.28). No significant associations between age, height, or cumulative bisphosphonate dose and the risk for cranial base anomaly were detected. In longitudinal evaluation, Kaplan-Meier curves suggested delayed development of cranial base pathology in patients treated with bisphosphonates but the differences from the untreated group were not statistically significant. CONCLUSIONS These findings indicate that cranial base pathology may develop despite bisphosphonate treatment. Early initiation of bisphosphonate treatment may delay development of craniocervical junction pathology. Careful followup of cranial base morphology is warranted, particularly in patients with severe OI.

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