‘Comparison and correlation of the maxillary sinus dimensions in various craniofacial patterns: A CBCT Study’

Abstract

Background: To compare and correlate the maxillary sinus dimensions and basal bone height among various facial patterns using CBCT for advanced diagnosis and treatment planning in Orthodontics. Methods: 66 CBCT images within age group of 18-30 years were divided into horizontal (Group 1), average (Group 2) and vertical (Group 3) facial growth patterns. Maxillary sinus dimensions were compared and correlated in all three groups. The sinus height and basal bone height were recorded at 3 locations-between 1st premolar and 2nd premolar (PM1-PM2), between 2nd premolar and 1st Molar (PM2-M1) and between 1st and 2nd molar (M1-M2). Results: Overall reduction in sinus height and significantly reduced sinus volume was seen in Group-1. Longest maxillary sinus height in M1-M2 region and shortest in PM1-PM2 region was seen in Group-3. The basal bone height in PM1-PM2 region was significantly longer in Group-3 than in Group-1(p<.05).Shortest basal bone height in M1-M2 region was seen in Group-3. A significant negative correlation was seen between the maxillary sinus height and the basal bone height in Group-1 and Group-3(p<.05). Conclusion: There is a correlation between the maxillary sinus height and basal bone height with that of facial pattern which needs to be considered during orthodontic treatment planning and while carrying out facial growth modification procedures in younger patients.

Influence of Orthodontic Treatment on Changes in the Maxillary Sinus Dimensions

“…Recently, the relationship of maxillary sinus dimensions to craniofacial morphology was assessed using CBCT [25][26][27]. However, most researchers have focused on the ANB angle or mandibular plane angle and evaluated the effects of the mandibular plane angle and/or the ANB angle on maxillary sinus dimensions and volume.…”