Cemental tear is a rare and indetectable condition unless obvious clinical signs present with the involvement of surrounding periodontal and periapical tissues. Due to its clinical manifestations similar to common dental issues, such as vertical root fracture, primary endodontic diseases, and periodontal diseases, as well as the low awareness of cemental tear for clinicians, misdiagnosis often occurs. The critical principle for cemental tear treatment is to remove torn fragments, and overlooking fragments leads to futile therapy, which could deteriorate the conditions of the affected teeth. Therefore, accurate diagnosis and subsequent appropriate interventions are vital for managing cemental tear. Novel diagnostic tools, including cone-beam computed tomography (CBCT), microscopes, and enamel matrix derivatives, have improved early detection and management, enhancing tooth retention. The implementation of standardized diagnostic criteria and treatment protocols, combined with improved clinical awareness among dental professionals, serves to mitigate risks of diagnostic errors and suboptimal therapeutic interventions. This expert consensus reviewed the epidemiology, pathogenesis, potential predisposing factors, clinical manifestations, diagnosis, differential diagnosis, treatment, and prognosis of cemental tear, aiming to provide a clinical guideline and facilitate clinicians to have a better understanding of cemental tear.
Humans ; Dental Cementum/injuries* ; Consensus ; Diagnosis, Differential ; Cone-Beam Computed Tomography ; Tooth Fractures/therapy*

Mice have been widely used in the study of primary liver cancer owing to the close similarity of its genome to that of humans,its strong reproductive ability,the low cost of model construction,and the ease of genetic manipulation,including molecular mechanisms of pathogenesis and potential drug targets.Traditional animal models are increasingly falling short of meeting the needs of precision medicine research because of their inability to reproduce tumor microenvironment interactions and control the specificity of molecular subtypes.This study systematically compared the technical advantages of tail vein high-pressure injection,combined with transposon system(HTVI-TS),with traditional models in liver cancer research,and focused on the application value of the HTVI-TS model in the mechanism study of tumorigenesis and development,immunotherapy response prediction,and individualized evaluation of targeted drugs.This report presents a new research platform for precise diagnosis and treatment of primary liver cancer by simulating the heterogeneous evolution process of the cancer.The findings provide a theoretical basis for optimizing the selection of preclinical research models for liver cancer;the expansion potential of this technology in liver cancer research is outlined.

BACKGROUND:β-Defensin has the ability against influenza A virus and inhibits a series of inflammatory responses induced by influenza A virus infection within cells.There have been no reports on whether hemagglutinin 1 from influenza A virus can induce the secretion of mouse β-defensin and interferon-γ when acting in mouse tracheal epithelial cells.OBJECTIVE:To investigate the effect of recombinant hemagglutinin 1 on the production levels of mouse β-defensin and interferon-γ in mouse tracheal epithelial cells.METHODS:Primary mouse tracheal epithelial cell were divided into six groups:blank control group(Control),recombinant hemagglutinin 1 group(200 ng/mL),recombinant hemagglutinin 1+influenza A virus group,influenza A virus group(2×TCID50),recombinant hemagglutinin 1+inactivated influenza A virus group,and inactivated influenza A virus(I)group.After the mouse tracheal epithelial cells in each group were treated for 4,8,or 24 hours,hematoxylin-eosin staining was used for pathological observation.The mRNA levels of mouse β-defensin 2,3,and 4,and interferon-γ were detected by qRT-PCR.The protein levels of mouse β-defensin 2,3,and 4 were measured by enzyme-linked immunosorbent assay,and the protein expression of interferon-γ was detected by western blot.RESULTS AND CONCLUSION:(1)The recombinant hemagglutinin 1 acting alone or in combination with influenza A virus could cause different pathological changes in tracheal epithelial cells.Phenomena such as vacuolation,nuclear pyknosis and cell fusion could be observed in the cells.(2)Compared with the control group,recombinant hemagglutinin 1 alone or in combination with influenza A virus or inactivated influenza A virus significantly induced the production of mouse β-defensin 2,3,and 4(P<0.05)and interferon-γ in mouse tracheal epithelial cells(P<0.05).These results indicate that recombinant hemagglutinin 1 alone or in combination with influenza A virus can induce the production of mouse β-defensin 2,3,and 4 and interferon-γ in mouse tracheal epithelial cells.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Objective:To investigate human factors underlying radiotherapy planning safety incidents and quantitatively explore their interrelationships.Methods:A total of 1 619 safety incidents recorded in the automated plan checking system developed by West China Hospital of Sichuan University were utilized. Human factors were identified and statistically analyzed using the Human Factors Analysis and Classification System (HFACS). A Bayesian network model was developed and combined with sensitivity analysis for quantitative assessment.Results:Key contributing factors included organizational processes (12.89%), inadequate supervision (11.85%), and personnel factors (13.50%). Utilizing the established HFACS Bayesian network hybrid model in conjunction with sensitivity analysis, it has been found that the most significant influences on skill‐based errors and decision errors were condition of operators and environmental factors, with corresponding indices of 0.96 and 0.76. Additionally, personnel factors had the greatest impact on routine, with an index of 3.51.Conclusions:Key contributing factors span all HFACS levels, with organizational processes, supervision, personnel, and condition of operators each playing a significant role. Upstream factors — such as organizational climate, environment factors, and personnel factors — strongly influence downstream risks. These offer actionable insights for developing targeted safety protocols.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Objective:To explore the impact of marital status on the prognosis of adult patients with primary intrahepatic cholangiocarcinoma.Methods:3283 patients with primary intrahepatic single tube carcinoma from 1998 to 2018 were collected.They were divided into married group(n=1999)and unmarried group(n=1284)based on marital status.The clinical data of adult patients with primary intrahepatic cholangiocarcinoma of different marital statuses were compared.Kaplan Meier survival curves were used to analyze the survival status of adult patients with primary intrahepatic cholangiocarcinoma in different marital statuses.Univariate and multivariate Cox regression analysis were used to investigate the factors affecting the survival of adult patients with primary intrahepatic cholangiocarcinoma.Kaplan Meier survival curves were used to analyze the survival status of adult patients with primary intrahepatic cholangiocarcinoma in different marital statuses,including whether they received surgical treatment,radiotherapy treatment,and gender differences.Results:The proportion of male patients,the proportion of white patients,the proportion of patients over 60 years old,the proportion of patients receiving surgical treatment,the proportion of patients receiving radiotherapy,and the proportion of patients receiving chemotherapy in the married group were higher than those in the unmarried group(P＜0.05).Kaplan Meier survival curve analysis results showed that,the 3-month and 5-year survival rates between married and unmarried groups were Log-rank test P＜0.05.Multivariate Cox regression analysis showed that,age over 60 years old,later tumor stage,surgical treatment,radiotherapy,and chemotherapy were risk factors for survival in adult patients with primary intrahepatic cholangiocarcinoma(P＜0.05).Kalplan Meier survival curve results showed that,there was no significant difference in 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who received surgical treatment(Log-Rank test P=0.381).There was a significant difference in the 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who have not received surgical treatment(Log-Rank test P=0.015).There was no significant difference in 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who received radiotherapy(Log-Rank test P=0.073).There was a significant difference in the 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who have not received radiotherapy(Log-Rank test P＜0.001).There was no significant difference in 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who received chemotherapy(Log-Rank test P=0.337).There was a significant difference in the 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who have not received chemotherapy(Log-Rank test P＜0.001).There was no significant difference in the survival status of male patients with primary intrahepatic cholangiocarcinoma in adults of different marital statuses(Log-Rank test P=0.136).There were differences in the survival status of female patients with primary intrahepatic cholangiocarcinoma in adults of different marital statuses(Log-Rank test P＜0.001).Conclusion:Male,white,and over 60 years old are risk factors for the occurrence of primary intrahepatic cholangiocarcinoma in adults.Among them,more than half of the patients did not receive surgery or radiotherapy treatment,and about half of the patients did not receive chemotherapy.Married individuals are more likely than unmarried individuals to undergo anti-tumor treatments such as surgery,radiotherapy and chemotherapy.The staging of intrahepatic cholangiocarcinoma and whether surgery or chemotherapy is received are independent predictors of long-term survival.Marital status is not an independent predictor and can indirectly affect long-term survival.Male marital status has no significant survival benefits for this disease,while female marital status has survival benefits for this disease.The marital status of patients with intrahepatic cholangiocarcinoma who have not undergone radiotherapy,chemotherapy,or surgical intervention has a significant impact on their survival outcomes.

Objective:To explore the impact of marital status on the prognosis of adult patients with primary intrahepatic cholangiocarcinoma.Methods:3283 patients with primary intrahepatic single tube carcinoma from 1998 to 2018 were collected.They were divided into married group(n=1999)and unmarried group(n=1284)based on marital status.The clinical data of adult patients with primary intrahepatic cholangiocarcinoma of different marital statuses were compared.Kaplan Meier survival curves were used to analyze the survival status of adult patients with primary intrahepatic cholangiocarcinoma in different marital statuses.Univariate and multivariate Cox regression analysis were used to investigate the factors affecting the survival of adult patients with primary intrahepatic cholangiocarcinoma.Kaplan Meier survival curves were used to analyze the survival status of adult patients with primary intrahepatic cholangiocarcinoma in different marital statuses,including whether they received surgical treatment,radiotherapy treatment,and gender differences.Results:The proportion of male patients,the proportion of white patients,the proportion of patients over 60 years old,the proportion of patients receiving surgical treatment,the proportion of patients receiving radiotherapy,and the proportion of patients receiving chemotherapy in the married group were higher than those in the unmarried group(P＜0.05).Kaplan Meier survival curve analysis results showed that,the 3-month and 5-year survival rates between married and unmarried groups were Log-rank test P＜0.05.Multivariate Cox regression analysis showed that,age over 60 years old,later tumor stage,surgical treatment,radiotherapy,and chemotherapy were risk factors for survival in adult patients with primary intrahepatic cholangiocarcinoma(P＜0.05).Kalplan Meier survival curve results showed that,there was no significant difference in 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who received surgical treatment(Log-Rank test P=0.381).There was a significant difference in the 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who have not received surgical treatment(Log-Rank test P=0.015).There was no significant difference in 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who received radiotherapy(Log-Rank test P=0.073).There was a significant difference in the 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who have not received radiotherapy(Log-Rank test P＜0.001).There was no significant difference in 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who received chemotherapy(Log-Rank test P=0.337).There was a significant difference in the 5-year survival rate between married and unmarried adult patients with primary intrahepatic cholangiocarcinoma who have not received chemotherapy(Log-Rank test P＜0.001).There was no significant difference in the survival status of male patients with primary intrahepatic cholangiocarcinoma in adults of different marital statuses(Log-Rank test P=0.136).There were differences in the survival status of female patients with primary intrahepatic cholangiocarcinoma in adults of different marital statuses(Log-Rank test P＜0.001).Conclusion:Male,white,and over 60 years old are risk factors for the occurrence of primary intrahepatic cholangiocarcinoma in adults.Among them,more than half of the patients did not receive surgery or radiotherapy treatment,and about half of the patients did not receive chemotherapy.Married individuals are more likely than unmarried individuals to undergo anti-tumor treatments such as surgery,radiotherapy and chemotherapy.The staging of intrahepatic cholangiocarcinoma and whether surgery or chemotherapy is received are independent predictors of long-term survival.Marital status is not an independent predictor and can indirectly affect long-term survival.Male marital status has no significant survival benefits for this disease,while female marital status has survival benefits for this disease.The marital status of patients with intrahepatic cholangiocarcinoma who have not undergone radiotherapy,chemotherapy,or surgical intervention has a significant impact on their survival outcomes.

Mice have been widely used in the study of primary liver cancer owing to the close similarity of its genome to that of humans,its strong reproductive ability,the low cost of model construction,and the ease of genetic manipulation,including molecular mechanisms of pathogenesis and potential drug targets.Traditional animal models are increasingly falling short of meeting the needs of precision medicine research because of their inability to reproduce tumor microenvironment interactions and control the specificity of molecular subtypes.This study systematically compared the technical advantages of tail vein high-pressure injection,combined with transposon system(HTVI-TS),with traditional models in liver cancer research,and focused on the application value of the HTVI-TS model in the mechanism study of tumorigenesis and development,immunotherapy response prediction,and individualized evaluation of targeted drugs.This report presents a new research platform for precise diagnosis and treatment of primary liver cancer by simulating the heterogeneous evolution process of the cancer.The findings provide a theoretical basis for optimizing the selection of preclinical research models for liver cancer;the expansion potential of this technology in liver cancer research is outlined.

BACKGROUND:β-Defensin has the ability against influenza A virus and inhibits a series of inflammatory responses induced by influenza A virus infection within cells.There have been no reports on whether hemagglutinin 1 from influenza A virus can induce the secretion of mouse β-defensin and interferon-γ when acting in mouse tracheal epithelial cells.OBJECTIVE:To investigate the effect of recombinant hemagglutinin 1 on the production levels of mouse β-defensin and interferon-γ in mouse tracheal epithelial cells.METHODS:Primary mouse tracheal epithelial cell were divided into six groups:blank control group(Control),recombinant hemagglutinin 1 group(200 ng/mL),recombinant hemagglutinin 1+influenza A virus group,influenza A virus group(2×TCID50),recombinant hemagglutinin 1+inactivated influenza A virus group,and inactivated influenza A virus(I)group.After the mouse tracheal epithelial cells in each group were treated for 4,8,or 24 hours,hematoxylin-eosin staining was used for pathological observation.The mRNA levels of mouse β-defensin 2,3,and 4,and interferon-γ were detected by qRT-PCR.The protein levels of mouse β-defensin 2,3,and 4 were measured by enzyme-linked immunosorbent assay,and the protein expression of interferon-γ was detected by western blot.RESULTS AND CONCLUSION:(1)The recombinant hemagglutinin 1 acting alone or in combination with influenza A virus could cause different pathological changes in tracheal epithelial cells.Phenomena such as vacuolation,nuclear pyknosis and cell fusion could be observed in the cells.(2)Compared with the control group,recombinant hemagglutinin 1 alone or in combination with influenza A virus or inactivated influenza A virus significantly induced the production of mouse β-defensin 2,3,and 4(P<0.05)and interferon-γ in mouse tracheal epithelial cells(P<0.05).These results indicate that recombinant hemagglutinin 1 alone or in combination with influenza A virus can induce the production of mouse β-defensin 2,3,and 4 and interferon-γ in mouse tracheal epithelial cells.