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Background and Objective: Infantile colic which can cause nervousness and anxiety in parents by fussing and restlessness in babies. This study was done to determine the prevalence and associated risk factors of infantile colic in Babol, the North of IRAN.
Methods: This descriptive-analytical study was done on 591 breastfeeding babies (321 females, 270 males) born with birth weight 2500-4000 grams and gestational age ≥37 weeks without any medical problem during 2016-18. They visited in age 2, 4, 8, 12 weeks by neonatologist. On the basis of parents complain and Wessel's criteria babies were divided into three groups: Cramp with crying (colicky group), Cramp without crying and normal group. Then possible risk factors of infantile colic have been compared in three groups.
Results: 45.5% of babies presented cramp with crying as colic group. Time of restlessness was significantly more than morning during night and afternoon (P<0.05). Colic was higher in infants born by cesarean section (P<0.05), and in the first-born child (P<0.05). However, there was not significant relation with gender, mothers’ education, parents smoking and taking dairy product.
Conclusion: According to this study’s findings, nearly half of infants had the symptoms of colic, which was higher in first children, infants born by cesarean section and during night.

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Background and Objective: Sinus extension is a physiological process that occurs in the growth cells of the paranasal sinuses and leads to increasing their volume over time, causing challenges in the dental implant process. This study was conducted to evaluate maxillary sinus morphometrics by cone-beam computed tomography (CBCT).
Methods: This descriptive-analytical study was conducted on the CBCT images of 100 people (52 male and 48 female) with a mean age of 45.32 ± 17.41 and the age range of 27 to 63 years referring to an oral and maxillofacial specialized radiology clinic in Babol, Iran during 2019. The amount of maxillary sinus extension in the panoramic-like view was recorded based on the amount of its extension in terms of the first anterior tooth and the last posterior tooth. In the new net technologies (NNT) software, in the section related to creating panoramic-like views, first, in the axial sections, the starting point of the maxillary sinus was specified from the occlusal side, and the mediolateral dimensions were measured at distances of 3 mm above and 3 mm below.
Results: The highest amount of maxillary sinus progress in the right anterior side was related to the mesial of tooth 5 (15%), and the highest amount of sinus progress in the left anterior side was related to the distal of tooth 3 (15%) and the mesial of tooth 4 (15%), which had no statistically significant differences. The most progress in the anterior area was related to the distal of the canine tooth and the mesial of the first premolar. The mean mediolateral sinus progress at 3 mm above the right nasal floor was higher in females than in males (P<0.05). Gender and age had no statistically significant relationship with maxillary sinus progress.
Conclusion: The maxillary sinus progress was almost equal in the left and right sides and also in males and females.