Evaluation of Sphenoid Sinus Variations in Cleft Lip and Palate Patients: A Comprehensive Cone Beam Computed Tomography Analysis.

Objective: This study aims to compare sphenoid sinus variations between unilateral and bilateral cleft lip and palate (CLP) patients and healthy controls using CBCT images. It is notable for its large sample size and comparison of unilateral and bilateral cleft patients, cleft and noncleft sides, and different age groups.

Design: Retrospective cohort study.

Mutual information model selection algorithm for time series.

Time series model selection has been widely studied in recent years. It is of importance to select the best model among candidate models proposed for a series in terms of explaining the procedure that governs the series and providing the most accurate forecast for the future observations. In this study, it is aimed to create an algorithm for order selection in Box-Jenkins models that combines penalized natural logarithm of mutual information among the original series and predictions coming from each candidate.