Evaluation of the relationship between the maxillary posterior teeth and the sinus floor using cone-beam computed tomography

• Published in: Surgical and radiologic anatomy (English ed.) 2014-11, Vol.36 (9), p.907-914
• Main Authors: Ok, Evren, Güngör, Enes, Çolak, Mehmet, Altunsoy, Mustafa, Nur, Bilge Gülsüm, Ağlarci, Osman Sami
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Age Factors; Aged; Aged, 80 and over; Anatomy; Cone-Beam Computed Tomography; Databases, Factual; Dental care; Female; Humans; Image Processing, Computer-Assisted; Imaging; Male; Maxillary Sinus - anatomy & histology; Maxillary Sinus - diagnostic imaging; Medical imaging; Medicine; Medicine & Public Health; Middle Aged; Molar - anatomy & histology; Molar - diagnostic imaging; Original Article; Orthopedics; Radiology; Sex Factors; Sinuses; Surgery; Teeth; Tomography; Tooth Root - anatomy & histology; Tooth Root - diagnostic imaging; Turkey; Young Adult
• ISSN: 0930-1038; 1279-8517
• DOI: 10.1007/s00276-014-1317-3

Aim The aim of this study was to evaluate the relationship between each root of maxillary premolars and molars and the maxillary sinus floor according to sex, sinus position, and age by decade in a Turkish population by using cone-beam computed tomography (CBCT) scanning. Methodology We evaluated a database of 5,166 (2,680 maxillary premolars and 2,486 maxillary molars) CBCT scans obtained from 849 patients. The vertical relationship between each root of the molar and premolar teeth to the sinus floor was classified into three types: type 1, the roots penetrated into the sinus floor; type 2, the roots contacted the sinus floor; and type 3, the roots extended below the sinus floor. Results The results of the classification of each root in relationship to the sinus floor were as follows: type 3 occurred most frequently in the first (92.4 %) and second (71.6 %) premolar teeth, type 1 (34.2 %) occurred most frequently in the palatinal roots of the first molar teeth, type 3 occurred most frequently in the mesiobuccal (39.9 %) and distobuccal (39.7 %) roots of the first molar teeth, and type 2 (36.7 %) occurred most frequently in the mesiobuccal roots of the second molar teeth. No significant differences were found between the left and right sides, but several differences were found between males and females. The relationship between the posterior teeth and the sinus floor differed according to the age decade interval ( p