[Risk factors for mesioangular and vertical impactions of mandibular third molars based on logistic regression analysis].

Purpose: To explore the risk factors for mesioangular and vertical impactions of the mandibular third molars and to construct a predictive model based on logistic regression analysis.

Methods: Clinical data of 243 mandibular third molars collected from June 2021 to December 2023 at Tianjin Stomatology Hospital were classified into the eruption group and the impaction group, with the latter including mesioangular and vertical unilateral impactions. The clinical data were subjected to univariate analysis to screen for statistically significant factors, followed by multivariate analysis using logistic regression to further delineate risk factors for mandibular third molar impaction, with the construction of a nomogram for prediction.

[Expression of mTOR mRNA and Tfr1 mRNA in mucoepidermoid carcinoma of parotid gland and their relationship with prognosis].

Purpose: To investigate the expression of rapamycin target protein (mTOR) mRNA and transferrin receptor 1(Tfr1) mRNA in mucoepidermoid carcinoma of parotid gland and its relationship with prognosis.

Methods: From June 2013 to July 2015 in Tangshan Workers' Hospital, 35 patients with mucoepidermoid carcinoma of parotid gland were selected. The relative expression of mTOR and Tfr1 mRNA in mucoepidermoid carcinoma of parotid gland was detected.