Comparative study of anatomical features of primary and accessory maxillary ostia between patients with obstructive sleep apnea and healthy controls.

Purpose: The purpose of this study was to examine how the size and shape of the maxillary sinus and its ostia (the primary maxillary ostium and accessory maxillary ostium) relate to each other in patients with OSA using computed tomography (CT) scans. Additionally, the study aimed to explore whether or not obstructive sleep apnea (OSA) had an effect on these structures.

Methods: CT images of patients diagnosed with OSAS and healthy participants were evaluated to compare the patency, location, dimension, and presence of PMOs and AMOs using the Mann-Whitney U, Student t, and chi-square tests.

Association between second mesiobuccal canal and apical periodontitis in retrospective cone-beam computed tomographic images.

This retrospective cone-beam computed tomography study aimed to investigate the possible associations of apical periodontitis (AP) with missed/unmissed second mesiobuccal (MB2) canals. MB2 canals and AP were investigated in 257 endodontically treated and 673 untreated maxillary molars, and the former were analyzed regarding missed/unmissed MB2 canals. The chi-squared test and odds ratio (OR) were used for statistics.

Investigation using cone beam computed tomography analysis, of radicular grooves and canal configurations of mandibular premolars in a Turkish subpopulation.

Objective: To conduct an in vivo evaluation of prevalence of root canal configurations, lengths of C-shaped canals, prevalence and depths of radicular grooves (RGs), in mandibular first and second premolars in a Turkish subpopulation using cone beam computed tomography (CBCT).

Materials And Methods: CBCT images of 327 first and 264 second premolars were included. Canal configurations, locations, lengths, and types of C-shaped canals, and RGs were evaluated on CBCT images.

A case of multiple dental anomalies: a variant of Ekman-Westborg-Julin trait.

Simultaneous occurrence of multiple dental anomalies is relatively common and has been reported particularly in cases with systemic alterations or syndromes. However, in 1974, Ekman-Westborg and Julin described a unique case of multiple macrodontia and multituberculism of posterior teeth accompanied by multiple dental malformations without other systemic anomalies. Here we report the case of a 20-year-old female patient who presented with macrodontia affecting her maxillary lateral teeth, mandibular incisors, and impacted multituberculated wisdom teeth accompanied by other dental anomalies that manifested itself as a variant of the Ekman-Westborg-Julin trait.