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*

Objective To analyze the correlation of copper death inducer ferredoxin 1(FDX1)and lipoic acid(LA)with the occurrence and severity of coronary atherosclerosis and explore their roles in coronary heart disease(CHD).Methods We analyzed the data of 226 patients undergoing coronary artery angiography(CAG)in our hospital between October,2021 and October,2022,including 47 patients with normal CAG findings(control group)and 179 patients with mild,moderate or severe coronary artery stenosis(CHD group).Serum FDX1 and LA levels were determined with ELISA for all the patients.We also examined pathological changes in the aorta of normal and ApoE-/-mice using HE staining and observed collagen fiber deposition with Sirius red staining.Immunohistochemistry was used to detect the expression and distribution of FDX1 and LA in the aorta,and RT-PCR was performed to detect the expressions of FDX1,LIAS and ACO2 mRNAs in the myocardial tissues.Results Compared with the control patients,CHD patients had significantly lower serum FDX1 and LA levels,which decreased progressively as coronary artery stenosis worsened(P<0.01)and as the number of involved coronary artery branches increased(P<0.05).Serum FDX1 and LA levels were positively correlated(r=0.451,P<0.01)and they both negatively correlated with the Gensini score(r=-0.241 and-0.273,respectively;P<0.01).Compared with normal mice,ApoE-/-mice showed significantly increased lipid levels(P<0.01)and atherosclerosis index,obvious thickening,lipid aggregation,and collagen fiber hyperplasia in the aorta,and significantly reduced expressions of FDX1,LA,LIAS,and ACO2(P<0.05).Conclusion Serum FDX1 and LA levels decrease with worsening of coronary artery lesions,and theirs expressions are correlated with coronary artery lesions induced by hyperlipidemia.

Objective:To systematically evaluate the bias risk and applicability of short-term mortality risk prediction models within 30 days after stroke, providing a basis for selecting or developing standardized risk prediction models.Methods:Research on short-term mortality risk prediction models within 30 days after stroke was electronically retrieved from China National Knowledge Infrastructure, WanFang Data, VIP, and China Biomedical Database, PubMed, Web of Science, Embase, Cochrane Library and CINAHL. The search period was from database establishment to December 5, 2023. Two researchers independently conducted literature screening and quality evaluation.Results:Twelve studies were included, and a total of 31 models were internally validated, with 7 models undergoing external validation based on internal validation. 26 models reported discriminative power, and 18 models reported calibration methods. The most frequent predictors of modeling were age, hypertension, atrial fibrillation, diabetes and admission Glasgow Coma Scale score. Due to methodological problems such as insufficient sample size, improper handling of missing variables, and inadequate reporting of modeling information, all included studies were rated as high risk of bias.Conclusions:The research on short-term mortality risk prediction models for stroke patients is still in the development stage. Although it has good applicability, the risk of bias is relatively high. Future research should be designed and reported based on prediction model risk of bias assessment tool (PROBAST) and transparent reporting of a multivariable prediction model for individual prognosis or diagnosis (TRIPOD) to avoid common problems summarized in this study and reduce the risk of bias.

Objective To analyze the correlation of copper death inducer ferredoxin 1(FDX1)and lipoic acid(LA)with the occurrence and severity of coronary atherosclerosis and explore their roles in coronary heart disease(CHD).Methods We analyzed the data of 226 patients undergoing coronary artery angiography(CAG)in our hospital between October,2021 and October,2022,including 47 patients with normal CAG findings(control group)and 179 patients with mild,moderate or severe coronary artery stenosis(CHD group).Serum FDX1 and LA levels were determined with ELISA for all the patients.We also examined pathological changes in the aorta of normal and ApoE-/-mice using HE staining and observed collagen fiber deposition with Sirius red staining.Immunohistochemistry was used to detect the expression and distribution of FDX1 and LA in the aorta,and RT-PCR was performed to detect the expressions of FDX1,LIAS and ACO2 mRNAs in the myocardial tissues.Results Compared with the control patients,CHD patients had significantly lower serum FDX1 and LA levels,which decreased progressively as coronary artery stenosis worsened(P<0.01)and as the number of involved coronary artery branches increased(P<0.05).Serum FDX1 and LA levels were positively correlated(r=0.451,P<0.01)and they both negatively correlated with the Gensini score(r=-0.241 and-0.273,respectively;P<0.01).Compared with normal mice,ApoE-/-mice showed significantly increased lipid levels(P<0.01)and atherosclerosis index,obvious thickening,lipid aggregation,and collagen fiber hyperplasia in the aorta,and significantly reduced expressions of FDX1,LA,LIAS,and ACO2(P<0.05).Conclusion Serum FDX1 and LA levels decrease with worsening of coronary artery lesions,and theirs expressions are correlated with coronary artery lesions induced by hyperlipidemia.

Objective:To analyze the causes and clinical characteristics of 9 cases of occupational acute poisoning with diethylene glycol monobutyl ether, and provide a basis for clinical diagnosis, treatment, prognosis, and prevention.Methods:The leakage accident of diethylene glycol monobutyl ether occurred in an electronic company in Janvary 2021, in Weihai City was analyzed. The clinical manifestations, laboratory examinations, diagnosis, treatment and prognosis of 9 cases of diethylene glycol monobutyl ether poisoning were summarized.Results:All 9 patients had moderate chemical eye burns and chemical conjunctivitis, and were immediately given symptomatic treatment. They fully recovered after 14 days.Conclusion:Patients who inhale diethylene glycol monobutyl ether for a short time have obvious eye burns, but early detection and timely treatment can achieve better prognosis.

Objective:To analyze the causes and clinical characteristics of 9 cases of occupational acute poisoning with diethylene glycol monobutyl ether, and provide a basis for clinical diagnosis, treatment, prognosis, and prevention.Methods:The leakage accident of diethylene glycol monobutyl ether occurred in an electronic company in Janvary 2021, in Weihai City was analyzed. The clinical manifestations, laboratory examinations, diagnosis, treatment and prognosis of 9 cases of diethylene glycol monobutyl ether poisoning were summarized.Results:All 9 patients had moderate chemical eye burns and chemical conjunctivitis, and were immediately given symptomatic treatment. They fully recovered after 14 days.Conclusion:Patients who inhale diethylene glycol monobutyl ether for a short time have obvious eye burns, but early detection and timely treatment can achieve better prognosis.

Objective:To evaluate the effectiveness and safety of ultrasound-guided hydrostatic reduction for pediatric acute intussusception.Methods:One thousand eight hundred and thirty patients with acute intussusception diagnosed by ultrasound in Shenzhen Children′s Hospital from September 2017 to July 2020 were treated with ultrasound-guided hydrostatic reduction method. The therapeutic effects, complications and ultrasonic features were observed.Results:Among 1 830 cases, 1 791 cases were diagnosed as primary intussusception, and 39 cases were secondary intussusception. The overall rate of successful ultrasound enema reduction were 1 780/1 830(93.7%) patients. All 50/1 830(2.7%) patients underwent surgery after unsuccessful enema reduction, including 42 cases of primary intussusception, and 8 cases of secondary intussusception. The complication of intestinal perforation occurred in 3 cases (0.16%), and there were no deaths.Conclusions:Ultrasound-guided enema reduction for pediatric acute intussusception is an effective and safe method without radiation exposure, and can be used as the preferred method for non-operative treatment of intussusception.

Objective:To investigate the effect of concentrated growth factor (CGF) on proliferation and differentiation in Beagle adipose-derived stem cells (ADSCs).Methods:ADSCs were isolated from adipose tissue of healthy Beagles and cultured.The multidirectional differentiation potential of ADSCs was identified.The ADSCs were assigned to a CGF group and a control group.The rate of proliferation was analyzed by CCK-8 assay.The osteogenic differentiation capability was detected by ALP staining after the osteoinduction.Bone formationrelated gene expression was detected by RT-PCR.Results:CGF promoted the proliferation of ADSCs in vitro.ADSCs in the CGF group showed higher level of ALP activity than that in the control group (P＜0.05).CGF stimulated the expression of the genes associated with osteogenesis,such as Col-I and Runx2.Conclusion:CGF can promote the proliferation and osteogenic differentiation in ADSCs in vitro.

Objective To summarize and explore the morphological characteristics,genetic alterations,immunophenotype and characteristics of molecular marker of acute eosinophilic leukemia (AEL),and improve the awareness for AEL.Methods A case of refractory hematopoietic dysplasia (MDS-RCMD) transformed to AEL in our hospital was retrospectively reviewed.Results The MDS-RC-MD patient transformed to AEL in 12 months after diagnosis.In his special bone marrow 10.4％ was blasts,while 70.8％ of bone marrow cells were eosinophils including 69.3％ of promyelocyte,myelocyte and metamyelocyte.Eosinophils accounted for 13.5％ in his peripheral blood.The blasts in bone marrow expressed CD34,CD117,HLA-DR,CD33,CD38 and CD13,and accompanied by complex chromosomal abnormalities.FI1L1/PDGFRα and ETV6/PDGFRβ fusion gene were negative.The patient died two months later following treating with AML regimen.Conclusion The AEL patient with negative FI1L1/PDGFRα and ETV6/PDGFRβ gene rearrangement,imatinib treatment is ineffectual.

Objective: To explore the method and result of repairing segmental ear defect with postauricular skin flap according to different region. Methods: 25 partial ear defects were divided into 5 regions.The cases with defect in 1 and 2nd regions were treated by postauricular flap combined with ipsilateral conchal cartilage graft in one stage; Cases in the 3rd regions were repaired with the posterior pedicled flap combined with conchal or rib cartilage graft in two stages; According to the defect in 4th region, post-auricular skin flap was transplanted anteriorly to repair; The temporal fascial flap and skin graft were used for the 3 cases with post-operative cartilage exposure. Results: All flaps survived with good shape except one case with partial epidermal necrosis and 3 cases deep color after the temporal fascial flap and skin graft. 9 cases that needed second operation. Conclusions The postauricular flap is a preferred alternative method in case periauricular skin is in fact, which yields closer tissue match, color, and texture. It is safe and effective for the correction of segmental ear defect with satisfied shape. The temporal fascial flap can be regarded as the last alternatives.