Sunday, 03 September 2023 15:34

Comparison between OPG and CBCT in Posterior Roots Detection and Protrusion into the Maxillary Sinus

1Sawsan Taher Younis, MSc, and 2Nadia Tawfiq Jaffer, MSc
1Department of Oral and Maxillofacial Surgery, College of Dentistry, University
of Duhok, Duhok, Iraq. 2Department of Prosthodontic, College of Dentistry,
University of Duhok, Iraq.
Corresponding author: Sawsan Taher Younis
E.mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Received 31 May 2023.
Accepted for publication on August 01, 2023.
Published August 31, 2023.
Doi: https://doi.org/10.58827/763314mljuap


Abstract
Background The maxillary sinus is the most important of paranasal sinuses in dentistry. Objectives This study aims to assess the accuracy and sensitivity of OPG and CBCT in detecting maxillary root protrusion into the maxillary sinus. Materials and Methods 118 dental records of OPG images and CBCT scans were retrospectively collected for patients who attended the Radiological Department, Erbil City, Iraq, for various clinical indications. The included subjects comprised males and females with an age range from (19-45). The topographic connection of the maxillary posterior teeth to the sinus floor was determined using both imaging modalities, in 3 groups, in group 1 the root penetrates the sinus, in group 2 the root contacts the sinus, and group 3 the root below the sinus. Results the majority of roots had penetrated the maxillary sinus, as shown by OPG, and the most frequent root that penetrated the sinus was the mesiobuccal root of the first and second molar. The buccal root of the first premolar was among the most frequent ones while there was no root penetrated the sinus, as shown by CBCT. Out of 254, total roots detected by OPG, 156 (61.4%) were from Group 1, and 98 (38.5%) were from Group 3. While 319 roots had been detected by CBCT, 313 (98.1%) were from Group 3 and only 6 (1.9%) were from Group 2. Conclusion CBCT is superior to OPG in all diagnostic aspects but it is ordered based on vague abnormalities found in OPG.

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