Background: Maxillary sinus is pyramidal cavity located in the body of maxilla; represent the largest and closest paranasal sinus to oral cavity. Maxillary sinus shape, size and volume affected by any developmental disturbance occur in midfacial area such as cleft lip and palate. The aim of this study is to evaluate maxillary sinus volume in cleft lip/palate patients and compare it to control normal subjects by using Cone Beam Computed Tomography. Material and method: Thirty four Cone Beam Computed Tomography images (17 of cleft patients and 17 controls) were collected, and Maxillary sinus volume was measured in cleft patients (cleft side and non-cleft sidd), and control group (right and left side).Comparison between study groups and statistical analysis was done. Results: the mean of sinus volume in cleft side was 7.76±2.4 mm 3 , in non-cleft side was 9.03±2.2 mm 3 , and in control group(mean of right and left side) was 11.34±2.8 mm 3 .maxillary sinus volume of cleft side was smaller than non-cleft side with no statistical significant difference. But there was high significant difference when compared to control group P= 0.0009. Conclusion:cleft lip and palate affect the normal development of maxillary sinus in cleft side. knowledge about maxillary sinus anatomy and volume is important point for surgeon required in sinus surgery, implant placement and any treatment of craniofacial disease.

No abstract

No abstract

No abstract

Background: Age and gender have important effect on Gonial angle, ramus height and bigonial width. Objective: To evaluate the changes in gonial angle, bigonial width and ramus height measured from panoramic radiographs, in relation to age and gender. Patients and Methods: Fifty digital panoramic radiographs were evaluated (25 male and 25 female). The patients classified into 5 groups according to age, starting from 20 years old to 60 years and above with ten years interval . The gonial angle, ramus height and bigonial width were measured by digital panoramic radiographs by using Planmeca Romix software program. Results: Gonial angle, ramus height and Bigonial width increased with age. Gonial angle of the left side was greater than the right side and females had larger gonial angle compared to male. The measurements show that the ramus height was greater on the right side than the left side, greater ramus height and bigonial width in male patients. Conclusion: Gonial angle, ramus height and bigonial width are the most important and widely used radiographic landmarks in orthodontic tracing for evaluation of growth pattern and treatment planning. It's also used as a basic reference for forensic dentistry and for comparison with other nationalities and races.