Objective To investigate the effect of endoscopic prebiopsy forceps on the detection rate of polyps in the right semicolon.Method Clinical data of 148 patients diagnosed and treated from March 2022 to December 2022 who were detected as polyps in the right semicolon by general electronic colonoscopy were collected,and clinical data of the patients who underwent endoscopic prebiopsy forceps were re-examined and the patients underwent endoscopic treatment within 1 month.The differences in general data,polyp number detected,polyp size,morphology and pathological diagnosis between the two groups were analyzed and compared.Results 168 polyps were detected in the right semicolon in the general colonoscopy group,and 41 polyps were missed in reexamination using endoscopic prebiopsy forceps,with a missed diagnosis rate of 19.62%.The detection rate of<5 mm polyps was higher in the endoscopic prebiopsy forceps group than that of general colonoscopy group,the difference was statistically significant(P<0.05).The polyps in the two groups were mainly wide-basal type,and the pathological properties were mainly tubular adenoma,there was no statistical significance among all groups(P>0.05).No complications such as bleeding and perforation occurred in the two groups.Conclusion Endoscopic prebiopsy forceps can significantly improve the detection rate of polyps in the right semicolon,in particular,the intraoperative search for disappeared preoperatively identified intestinal polyps,as well as smaller diameter intestinal polyps,which is worthy of further clinical promotion.

Objective To investigate the predictive value of systemic immune-inflammation index (SII) on the clinical prognosis of elderly patients with severe post endoscopic retrograde cholangiopancreatography pancreatitis (PEP).Methods From January 2020 to December 2022,189 elderly patients (aged ≥ 60 years) who developed PEP were evaluated retrospectively.Patients were divided into normal group (n=98),mild-to-moderate PEP group (n=79) and severe PEP group (n=12) according to whether pancreatitis occurred and the severity of pancreatitis based on the prolongation of planned hospitalization.Then compare the levels of SII in each group,analyze the correlation of the SII levels and severity of PEP.Receiver operator characteristic curve (ROC curve) was used to analyze the predictive value for PEP severity in the elderly.Results Compared to the normal group,the mild-to-moderate PEP group and severe PEP group had significantly higher level of blood cell count and SII level stay on 24 and 48 h after ERCP,longer length of hospital,but the serum calcium level was lower,the differences were statistically significant (P<0.05).The SII level and bedside index for severity in acute pancreatitis (BISAP) score were higher in the severe PEP group compared with the mild-to-moderate PEP group,the length of hospital stay was longer in the severe PEP group compared with the mild-to-moderate PEP group,the differences were statistically significant (P<0.05),but there were no significant changes in serum calcium level and white blood cell count.The area under the curve of the SII on 24 and 48 h for severe PEP was 0.68 and 0.94 (P<0.05),respectively.The prediction of severe PEP was 1490.51 (sensitivity was 83％,specificity was 57％) and 1686.97 (sensitivity was 91％,specificity was 89％),respectively.Conclusion SII can predict the severity of PEP in elderly patients,and SII on 48 h post-ERCP is a reliable prognostic marker of severe PEP.

Objective To investigate the predictive value of systemic immune-inflammation index (SII) on the clinical prognosis of elderly patients with severe post endoscopic retrograde cholangiopancreatography pancreatitis (PEP).Methods From January 2020 to December 2022,189 elderly patients (aged ≥ 60 years) who developed PEP were evaluated retrospectively.Patients were divided into normal group (n=98),mild-to-moderate PEP group (n=79) and severe PEP group (n=12) according to whether pancreatitis occurred and the severity of pancreatitis based on the prolongation of planned hospitalization.Then compare the levels of SII in each group,analyze the correlation of the SII levels and severity of PEP.Receiver operator characteristic curve (ROC curve) was used to analyze the predictive value for PEP severity in the elderly.Results Compared to the normal group,the mild-to-moderate PEP group and severe PEP group had significantly higher level of blood cell count and SII level stay on 24 and 48 h after ERCP,longer length of hospital,but the serum calcium level was lower,the differences were statistically significant (P<0.05).The SII level and bedside index for severity in acute pancreatitis (BISAP) score were higher in the severe PEP group compared with the mild-to-moderate PEP group,the length of hospital stay was longer in the severe PEP group compared with the mild-to-moderate PEP group,the differences were statistically significant (P<0.05),but there were no significant changes in serum calcium level and white blood cell count.The area under the curve of the SII on 24 and 48 h for severe PEP was 0.68 and 0.94 (P<0.05),respectively.The prediction of severe PEP was 1490.51 (sensitivity was 83％,specificity was 57％) and 1686.97 (sensitivity was 91％,specificity was 89％),respectively.Conclusion SII can predict the severity of PEP in elderly patients,and SII on 48 h post-ERCP is a reliable prognostic marker of severe PEP.

Third molars, late-eruption permanent teeth in humans, have commonly been extracted in clinical treatments. However, with the development of oral medicine, the value of maxillary third molars in clinical treatments, as well as in oral prosthetics, orthodontics, and oral implant applications, has gradually become recognized. This paper summarizes the research on the morphology of the crown, root, root canal and root tip of the maxillary third molar in a review to facilitate related research and clinical treatments.