Abstract
Introduction: Cranial Base integrate different patterns of growth in various regions of the skull such as the nasal cavity, the oral cavity, and the pharynx. Anteroposterior jaw position is thought to be affected by cranial base growth. Although scientific literature shows conflicting results regarding both positive and negative correlation between the cranial base and skeletal malocclusions.
 Materials & Method: 138 patients selected according to the Inclusion criteria were divided into three major categories depending upon ANB angle. Class I, class II group and class III group. Pretreatment lateral cephalometric radiographs were taken. Linear and Angular measurements were measured. All the data was entered in SPSS version 25 and then analyzed by using descriptive statistics including mean, standard deviation and by using inferential statistics including Pearson correlation and ANOVA test.
 Result: No significant differences were recorded between cranial base deflection angles (N-S-Ar and N-S-Ba) and malocclusions groups while Anterior cranial base length S-N was found to be maximum in class III and posterior cranial base length S-Ba was greater in class I.
 Conclusion: Cranial base angles N-S-Ar and N-S-Ba did not demonstrate any statistically significant correlation with three malocclusion groups i.e. Class I, Class II and Class III and their correlation was negative.
Highlights
Cranial Base integrate different patterns of growth in various regions of the skull such as the nasal cavity, the oral cavity, and the pharynx
As the maxilla is connected with the anterior part of the cranial base and the rotation of mandible is influenced by the maxilla, so a relationship can be found between cranial base morphology and the sagittal malposition of the jaws
Cranial base may affect the development of both cranium and the face as it is located on the junction between cranium, midface and glenoid fossa.[2]
Summary
Cranial Base integrate different patterns of growth in various regions of the skull such as the nasal cavity, the oral cavity, and the pharynx. Malocclusions with skeletal discrepancies in the craniofacial region are caused by abnormal forms, sizes and positions of the cranial base, maxilla and mandible. The variation in the expression of different facial patterns is a result of interplay between various factors such as heredity, environment and function These variable factors have an effect on the growth and development of the maxillofacial complex.[1]. Cranial base plays an important role in growth of craniofacial region. It helps to integrate different patterns of growth in various regions of the skull such as the nasal cavity, the oral cavity, and the pharynx. The two limbs of the cranial base form a flexon of 130-145 degree at sella.[3,4]
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