THE USE OF CONE-BEAM COMPUTED TOMOGRAPHY TO ASSESS THE RELATIONSHIP OF THE ROOTS OF THE PREMOLARS AND MOLARS OF THE MAXILLA RELATIVE TO THE
MAXILLARY SINUSES WHEN PLANNING DENTAL TREATMENT
Aqeel Al-Saedi 1, Bahaa Al-Bakhakh 2, Riad Al-Taee 2
1 - College of Dentistry, University of Basrah. Basrah, Iraq.
2 - College of Dentistry, Al-Maaqal University. Basrah, Iraq.
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urpose. This study aimed to evaluate the relationship between the roots of the maxillary posterior teeth and the maxillary sinus (MS) and to analyze the vertical relationship and vertical linear measurements (VLM) between the root tips of the maxillary posterior teeth and MS.
Materials and Methods. Cone-beam computed tomography images of 148 patients were evaluated (62 men, 86 women). A total of 1052 teeth were examined (518 maxillary premolars, 534 maxillary molars). The relationship between root tips and the maxillary sinus floor was classified into four types according to the classification of Jung and Cho. The vertical linear distance was measured, and the distribution of relationship types by age group was evaluated.
Results. Most single-rooted maxillary premolars (98.1%) showed a type 0 relationship with the maxillary sinus floor for the maxillary first premolars versus 69.5% for the maxillary second premolars. In the buccal roots of the double-rooted maxillary first premolars, 98.7% were type 0. In contrast, 50% of the maxillary second premolars were type 0. Type 0 was the most common in the palatal roots of the maxillary first premolars (92%) and the maxillary second premolars (45.8%). Among the maxillary first molars, type 0 was the most common, appearing in 43.3%, 39.8%, and 38.6% of the mesiobuccal, distobuccal, and palatal roots, respectively. At 50%, type 0 was the most common in single-rooted and double-rooted maxillary second molars. Type 1 was the most common in the mesiobuccal (48.1%) and distobuccal (45.5%) roots, whereas type 0 was the most common in the palatal roots (39.7%). Type 0 was significantly more common (P < 0.001) in maxillary molar roots in the older age group (>45 years).
Conclusions. Most of maxillary premolars (MP), maxillary first molars (MFM), and palatal roots (BR) of the maxillary second molars (MSM) are separate from the maxillary sinus floor (MSF) (type 0), whereas most of the mesiobuccal and distobuccal roots of the maxillary second molars are in contact with the sinus floor (type 1). MM measurements are more similar to the MSF than the MP with a shorter vertical distance from the BR of the MSM. The distance between the roots of the MM molars and the MSF raise significantly with increase age.
Keywords: cone-beam computed tomography, maxillary molars, maxillary premolars, maxillary sinus, maxillary sinus floor.
Corresponding author: Aqeel Ibrahim Lazim Al-Saedi, e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
For citation: Aqeel Al-Saedi, Bahaa Al-Bakhakh, Riad Al-Taee. The use of cone-beam computed tomography to assess the relationship of the roots of the premolars and molars of the maxilla relative to the maxillary sinuses when planning dental treatment. REJR 2024; 14(1):55-69. DOI: 10.21569/2222-7415-2024-14-1-55-69.
Received: 06.11.23 Accepted: 20.11.23