Primary and secondary RCT of maxillary premolars and molars reduces maxillary sinus inflammation

In a retrospective documentation analysis of root canal treatments, three-dimensional (3D) computed tomography images before and after endodontic treatment were assessed to measure the thickness of the Schneider membrane. Forty-five endodontically treated patients aged 21 to 62 years were enrolled in the study. Inflammation of the maxillary sinus was considered when the Schneider membrane was thicker than 2 mm. Statistical analyses were performed with Statistica 12 by StatSoft and StatXact by Cytel using the Shapiro–Wilk test, Student's t-test, and the Mann–Whitney test.

The results of the study are: 

• Out of 12 comparisons between variables, only 3 comparisons were significant.
• There was a relationship between the treatment effect (reduction in maxillary sinus inflammation 3 months after treatment) and the maximum height of the Schneider membrane.
• There was a relationship between the presence of a periapical lesion and the minimum height of the Schneider diaphragm, and there was a relationship between the presence of a periapical lesion and the maximum height of the Schneider diaphragm.

Thus, primary and secondary root canal treatments of maxillary premolars and molars reduce the inflammation of the maxillary sinus 3 months after treatment.

Reference:

Klaudia Migas , Joanna Marchlewska. Influence of Periapical Lesion on Healing in Sinus after Endodontics. CC BY 4.0 · European Journal of General Dentistry 2022; 11(01): 046-050

DOI: 10.1055/s-0041-1739509