Variation of Cranial Base Morphology among Different Sagittal Skeletal Malocclusion – A Cephalometric Study in Nepalese Population
DOI:
https://doi.org/10.18311/jpfa/2019/22688Keywords:
Cranial Base Morphology, Sagittal Skeletal Malocclusion, Nepalese PopulationAbstract
Introduction: Variation of cranial base morphology among different sagittal skeletal malocclusion has been evaluated previously by many studies. However, the findings of these studies conducted in different population differ due to racial/ ethnic differences. Objective: To obtain measurement data for various cranial base parameters and evaluate the variation in cranial base morphology among different sagittal skeletal malocclusion in Nepalese population. Materials and Methods: Manual tracing and measurement of 4 different cranial base parameters [linear- Anterior Cranial Base Length (ACBL), Posterior Cranial Base Length (PCBL) and Total Cranial Base Length (TCBL); angular - Cranial Base Angle (CBA)] were done on 90 pretreatment lateral cephalogram of healthy adult orthodontic patients. Study samples were matched for age and were equally distributed among three different sagittal skeletal malocclusion group using ANB angle. [skeletal Class I: 30, skeletal Class II: 30 and skeletal Class III: 30]. Analysis Of Variances [ANOVA] followed by Least Significant Difference (LSD) post hoc test was used to determine difference in cranial base measurements among three sagittal skeletal group. Results: While comparing the cranial base parameters among different sagittal skeletal class, mean value for all the parameters reduced systematically from skeletal Class II, via skeletal Class I, to skeletal Class III group. However, a statistically significant difference was found only for TCBL between skeletal Class II and skeletal Class III (p < 0.01). Conclusions: A significant difference in TCBL among different sagittal skeletal malocclusion was observed in Nepalese adults.Downloads
Published
How to Cite
Issue
Section
License
All the articles published in JPFA are distributed under a creative commons license. The journal allows the author(s) to hold the copyright of their work (all usages allowed except for commercial purpose).
References
Dhopatkar A, Bhatia S, Rock P. An investigation into the relationship between the cranial base angle and malocclusion. Angle Orthod. 2002;72:456–463.
Hopkin GB, Houston WJB, James GA. The cranial base as an aetiological factor in malocclusion. Angle Orthod. 1968;38:250–255
Dibbets JM. Morphological associations between the angle classes. Eur J Orthod. 1996;18:111–118. https://doi.org/10.1093/ejo/18.1.111
Chin A, Perry S, Liao C, Yang Y. The relationship between the cranial base and jaw base in a Chinese population. Head Face Med. 2014;10:31–38. https://doi.org/10.1186/1746160X-10-31
Kamak H, í‡atalbas B, Senel B. Cranial base features between sagittal skeletal malocclusions in Anatolian Turkish adults: Is there a difference. J Orthod Res. 2013;1:52–56. https://doi.org/10.4103/2321-3825.116287
Breh R, Kamat NV. Cranial base morphology determining sagittal and vertical facial relation: A cross sectional study. Int J Sci Res. 2017;6:1823–1826.
Bishara SE. Ortodontia. Sí£o Paulo: Ed. Santos; 2004.
Thiesen G, Pletsch G, Zastrow MD, do Valle CV, do Valle-Corotti KM, Patel MP, Conti PC. Comparative analysis of the anterior and posterior length and deflection angle of the cranial base, in individuals with facial Pattern I, II and III. Dent Press J Orthod. 2013;18:69–75. https://doi.org/10.1590/S2176-94512013000100016
Currie K, Sawchuk D, Saltaji H, Oh H, Flores-Mir C, Lagravere M. Posterior cranial base natural growth and development: A systematic review. Angle Orthod. 2017;87:897–910. https://doi.org/10.2319/032717-218.1
Chang ZC, Hu FC, Lai E, Yao CC, Chen MH, Chen YJ. Landmark identification errors on cone-beam computed tomography-derived cephalograms and conventional digital cephalograms. Am J Orthod Dentofacial Orthop. 2011;140:e289–e297. https://doi.org/10.1016/j.ajodo.2011.06.024
Gong A, Li J, Wang Z, Li Y, Hu F, Li Q, Miao D, Wang L. Cranial base characteristics in anteroposterior malocclusions: A meta-analysis. Angle Orthod. 2016;86:668–680. https://doi.org/10.2319/032315-186.1
Bjork A. Cranial base development. Am J Orthod. 1955;41: 198–225. https://doi.org/10.1016/0002-9416(55)90005-1