The sphenoid bone which is located in the middle of the skull base articulates with most of the bones forming the skull. The so-called corpus sphenoidale is the body of sphenoid bone. The concavity in the middle part of the upper surface of corpus sphenoidale is the hypophyseal fossa, in which the hypophysis lies. [1,2] The hypophyseal fossa is limited by the tuberculum sellae anteriorly and dorsum sellae posteriorly. The two small processes on both sides of the tuberculum sellae are named as middle clinoid processes and the small processes on the superior lateral corners of the dorsum sellae are the posterior clinoid processes. The hypophyseal fossa is examined in three parts, namely, the anterior wall, poste-Abstract Objectives: Classification of the skeletal facial types is performed using certain reference points and planes in lateral cephalometric radiographs to plan orthodontic treatments. One of these reference points is sella turcica which is closely associated with craniofacial bone development. The aim of this study was to identify the association between the sella turcica variations and skeletal Class I, II, and III malocclusions. Methods:This study retrospectively evaluated 94 orthodontic patients (48 males and 46 females) between 14-26 years of age. Lateral cephalometric radiographs of the patients with skeletal Class I, II, and III malocclusions were classified into six groups according to sella turcica morphology: normal sella turcica, oblique anterior wall, double contour of the floor, sella turcica bridge, irregularity in the posterior part, and pyramidal shape of sella turcica. The length, depth, and diameter of sella turcica were measured. Sella turcica variations and radiographs of patients with Class I, II, and III malocclusions were compared statistically. Results:The correlation between the sella turcica variations and skeletal sagittal classification was statistically significant (p=0.017). 36.8% of the radiographs, which were classified as normal sella turcica were classified as Class I patients. There were no statistically significant differences between the skeletal Class I, II, and III malocclusions and sella turcica variations in terms of the length, depth, and diameter. Conclusion:For adequate patient referral and management, orthodontists should recognize sella turcica variations in lateral cephalometric radiographs, and these findings should arise an index of suspicion for associated pathologies, especially of the hypophyseal gland.

Incidence of food allergy (FA) during nursing period is 6-8% globally and It is reported %5,7 in Turkey. In our study, the aim is to determine whether the prevalence of food allergy (FA) increases in children vaccinated against rotavirus. The files of 681 infants who are still followed-up were retrospectively evaluated. Children who did not come to our clinic for all of their well-child follow-up visits were excluded from the study. Moreover, children diagnosed with allergy before vaccination and children with known gastrointestinal system disease were excluded from the study. The number of patients diagnosed with food allergy after being vaccinated against rotavirus was 12 (1.76%). Three children had a family history of allergy. Of 12 patients who were diagnosed after vaccination, 3 (n:104) were vaccinated with pentavalent vaccine and 9 (n:507) with monovalent vaccine. In the monovalent vaccination group, food allergy was found in 9 children (1.55%), and in the pentavalent vaccination group, food allergy was found in 3 children (2.88%). The difference between the two vaccination groups in terms of food allergy prevalence was not significant (p > .05). Although it is believed that food allergy, and even cow's milk protein allergy (CMPA) prevalence increases in infants vaccinated against rotavirus, in this study, no significant increase was observed in the prevalence of food allergy after rotavirus vaccination. Both types of vaccine had similar rates to each other.