Existing nucleos（t）ide analogues and pegylated interferon exhibit limited efficacy in the functional cure of hepatitis B. Recently， small nucleic acid drugs， such as antisense oligonucleotides and small interfering RNAs， have brought unprecedented breakthroughs in the functional cure of hepatitis B with their brand-new mechanisms of action and remarkable efficacy in early clinical studies. Small nucleic acid drugs， such as antisense oligonucleotides and small interfering RNAs， can reduce the level of HBsAg and strive to achieve HBsAg seroclearance. The reduction in HBsAg may restore the hepatitis B-specific immune function of the body to some extent and may further transform the simple clearance of HBsAg into hard endpoints with clinical value， such as reducing hepatitis B-related liver events. By meticulously analyzing the dynamic trajectory of HBsAg alterations within the context of new drug applications and further optimizing combined treatment strategies and regimens， it is expected to transform the functional cure of hepatitis B into the ultimate goal of improving survival rates and quality of life.

Protrusive facial deformities, characterized by the forward displacement of the teeth and/or jaws beyond the normal range, affect a considerable portion of the population. The manifestations and morphological mechanisms of protrusive facial deformities are complex and diverse, requiring orthodontists to possess a high level of theoretical knowledge and practical experience in the relevant orthodontic field. To further optimize the correction of protrusive facial deformities, this consensus proposes that the morphological mechanisms and diagnosis of protrusive facial deformities should be analyzed and judged from multiple dimensions and factors to accurately formulate treatment plans. It emphasizes the use of orthodontic strategies, including jaw growth modification, tooth extraction or non-extraction for anterior teeth retraction, and maxillofacial vertical control. These strategies aim to reduce anterior teeth and lip protrusion, increase chin prominence, harmonize nasolabial and chin-lip relationships, and improve the facial profile of patients with protrusive facial deformities. For severe skeletal protrusive facial deformities, orthodontic-orthognathic combined treatment may be suggested. This consensus summarizes the theoretical knowledge and clinical experience of numerous renowned oral experts nationwide, offering reference strategies for the correction of protrusive facial deformities.
Humans ; Orthodontics, Corrective/methods* ; Consensus ; Malocclusion/therapy* ; Patient Care Planning ; Cephalometry

Enamel demineralization, the formation of white spot lesions, is a common issue in clinical orthodontic treatment. The appearance of white spot lesions not only affects the texture and health of dental hard tissues but also impacts the health and aesthetics of teeth after orthodontic treatment. The prevention, diagnosis, and treatment of white spot lesions that occur throughout the orthodontic treatment process involve multiple dental specialties. This expert consensus will focus on providing guiding opinions on the management and prevention of white spot lesions during orthodontic treatment, advocating for proactive prevention, early detection, timely treatment, scientific follow-up, and multidisciplinary management of white spot lesions throughout the orthodontic process, thereby maintaining the dental health of patients during orthodontic treatment.
Humans ; Consensus ; Dental Caries/etiology* ; Dental Enamel/pathology* ; Tooth Demineralization/etiology* ; Tooth Remineralization

Early correction of childhood malocclusion is timely managing morphological, structural, and functional abnormalities at different dentomaxillofacial developmental stages. The selection of appropriate imaging examination and comprehensive radiological diagnosis and analysis play an important role in early correction of childhood malocclusion. This expert consensus is a collaborative effort by multidisciplinary experts in dentistry across the nation based on the current clinical evidence, aiming to provide general guidance on appropriate imaging examination selection, comprehensive and accurate imaging assessment for early orthodontic treatment patients.
Humans ; Malocclusion/diagnostic imaging* ; Child ; Consensus

The prevalence of Class III malocclusion varies among different countries and regions. The populations from Southeast Asian countries (Chinese and Malaysian) showed the highest prevalence rate of 15.8%, which can seriously affect oral function, facial appearance, and mental health. As anterior crossbite tends to worsen with growth, early orthodontic treatment can harness growth potential to normalize maxillofacial development or reduce skeletal malformation severity, thereby reducing the difficulty and shortening the treatment cycle of later-stage treatment. This is beneficial for the physical and mental growth of children. Therefore, early orthodontic treatment for Class III malocclusion is particularly important. Determining the optimal timing for early orthodontic treatment requires a comprehensive assessment of clinical manifestations, dental age, and skeletal age, and can lead to better results with less effort. Currently, standardized treatment guidelines for early orthodontic treatment of Class III malocclusion are lacking. This review provides a comprehensive summary of the etiology, clinical manifestations, classification, and early orthodontic techniques for Class III malocclusion, along with systematic discussions on selecting early treatment plans. The purpose of this expert consensus is to standardize clinical practices and improve the treatment outcomes of Class III malocclusion through early orthodontic treatment.
Humans ; Malocclusion, Angle Class III/classification* ; Orthodontics, Corrective/methods* ; Consensus ; Child

Patients with periodontal disease often require combined periodontal-orthodontic interventions to restore periodontal health, function, and aesthetics, ensuring both patient satisfaction and long-term stability. Managing these patients involving orthodontic tooth movement can be particularly challenging due to compromised periodontal soft and hard tissues, especially in severe cases. Therefore, close collaboration between orthodontists and periodontists for comprehensive diagnosis and sequential treatment, along with diligent patient compliance throughout the entire process, is crucial for achieving favorable treatment outcomes. Moreover, long-term orthodontic retention and periodontal follow-up are essential to sustain treatment success. This expert consensus, informed by the latest clinical research and practical experience, addresses clinical considerations for orthodontic treatment of periodontal patients, delineating indications, objectives, procedures, and principles with the aim of providing clear and practical guidance for clinical practitioners.
Humans ; Consensus ; Orthodontics, Corrective/standards* ; Periodontal Diseases/complications* ; Tooth Movement Techniques/methods* ; Practice Guidelines as Topic

The repair of the periodontal membrane is essential for the successful management of periodontal disease and dental trauma. Emdogain^® (EMD) is widely used in periodontal therapy due to its ability to promote repair. Despite substantial research, the cellular and molecular mechanisms underlying EMD's effects, particularly at the single-cell resolution, remain incompletely understood. This study established a delayed tooth replantation model in rats to investigate these aspects. Tooth loss rate and degree of loosening were evaluated at 4 and 8 weeks. Micro-CT, HE staining, TRAP staining, and immunofluorescence staining were evaluated to assess EMD's efficacy. Single-cell sequencing analyses generated single-cell maps that explored enrichment pathways, cell communication, and potential repair mechanisms. Findings indicated that EMD could reduce the rate of tooth loss, promote periodontal membrane repair, and reduce root and bone resorption. Single-cell analysis revealed that EMD promotes the importance of Vtn+ fibroblasts, enhancing matrix and tissue regeneration functions. Additionally, EMD stimulated osteogenic pathways, reduced osteoclastic activity, and promoted angiogenesis-related pathways, particularly bone-related H-type vessel expression in endothelial cells. Gene modules associated with angiogenesis, osteogenesis, and odontoblast differentiation were identified, suggesting EMD might facilitate osteogenesis and odontoblast differentiation by upregulating endothelium-related genes. Immune cell analysis indicated that EMD did not elicit a significant immune response. Cell communication analysis suggested that EMD fostered pro-regenerative networks driven by interactions between mesenchymal stem cells, fibroblasts, and endothelial cells. In conclusion, EMD proves to be an effective root surface therapy agent that supports the restoration of delayed replantation teeth.
Animals ; Tooth Replantation/methods* ; Rats ; Dental Enamel Proteins/pharmacology* ; Single-Cell Analysis ; Rats, Sprague-Dawley ; X-Ray Microtomography ; Osteogenesis/drug effects* ; Male ; Periodontal Ligament/drug effects*

Abstract: This study aims to find out the causes for the dissolution of unqualified samples found during evaluation sampling of lansoprazole enteric-coated preparations by the laser infrared imaging system and orbitrap high resolution mass spectrometry, with suggestions for improvement. Lansoprazole enteric-coated preparations were tested by current standard, the dissolution of a batch of samples was below the limit and other items were in line with the standard. Considering that this product is unstable to acid and alkali, the following exploratory experiments were designed from different dimensions, based on the conclusion of the unannounced inspection of the company, to explore the reasons for the unqualified batch, including the influence of high-temperature and high-humidity storage environment on the key quality properties of the sample, the influence of 2-hour acid resistance test on dissolution result, the imaging of the core and the measure of coating layer thickness, the optimization of chromatographic conditions of related substances, and the analysis of the source of impurities. It was found that improper storage in circulation and poor coating process caused the low dissolution of this batch: the high-temperature and high-humidity storage environment possible in the circulation process led to the decreasing efficacy of disintegrating agent in the samples and thus the difficulty to release the active pharmaceutical ingredient fully; the coating solution could not be uniformly sprayed on the core, resulting in thin isolation layer and different thickness, which then affected the protection of the main drug against acid degradation. The above two reasons together resulted in unqualified dissolution of this batch. The overall quality of lansoprazole enteric-soluble preparation is good, but the formulation and process in some companies need to be optimized; and the temperature and humidity in the circulation process need to be controlled in strict accordance with the regulations.

Objective: To analyze the trend of the burden of leukemia among people under 35 years in China from 1990 to 2019. Methods: Incidence, mortality and disability-adjusted life years (DALY) of leukemia among people under 35 years in China from 1990 to 2019 were collected by using the Global Burden of Disease (GBD) Study Database 2019. The trends in leukemia incidence, mortality and DALY rates were analyzed using the average annual percent change (AAPC) and age-period-cohort model. Results: From 1990 to 2019, the incidence, mortality and DALY rates of leukemia among people under 35 years in China showed a downward trend (AAPC=-2.336%, -3.604% and -3.589%, all P<0.05), with more pronounced downward trends in females (AAPC=-3.209%, -3.787% and -3.818%, all P<0.05) than in males (AAPC=-2.521%, -3.292% and -3.306%, all P<0.05). According to the age-period-cohort model, the risks of leukemia incidence, mortality and DALY rates decreased with increasing age. Among them, the children under 5 years had the highest risks of leukemia incidence, mortality and DALY rates (RR=4.697, 2.718 and 3.059). Over time, the risks of leukemia incidence, mortality and DALY rates also decreased from 1990-1994 (RR=1.217, 1.264 and 1.296) to 2015-2019 (RR=0.901, 0.696 and 0.691). With regard to birth cohorts, the risks of leukemia incidence, mortality and DALY rates first increased and then decreased, peaking in the 1986-1990 birth cohort (RR=1.335, 1.192 and 1.231). Conclusions The incidence, mortality and DALY rates of leukemia among people under 35 years in China from 1990 to 2019 showed a downward trend. Males and children under 5 years were the key populations for leukemia prevention and control.

Objective To investigate the neurobehavioral development of young children aged 24 to 60 months in Shunde and explore the factors influencing the development of young children and provide reference for the interven-tion of neurobehavioral development delays in young children.Methods A retrospective cohort study was used to enroll the young children who were initially screened by the Pediatric Neuropsychological Developmental Scale(Pe-diatric Heart Scale)with a score of ≤85 was included in the study.With a score of ≤85,the young children might be at risk of developmental delays,and needed to be further diagnosed by the GESELL Developmental Diagnostic Scale,the basic information of the young children and their mothers at the time of birth were investigated,as well as basic information about the young children at the time of completing the GESELL Developmental Diagnostic Scale was collected.Results A total of 271 young children were included,196 males and 75 females.Young children had the lowest developmental quotient(DQ)in the language domain among the five domains(P＜0.001).Multiple lin-ear regression models showed:compared with girls,the language domain DQ of boys decreased by 5.321 points(P=0.049,95％CI:-10.620--0.021),and the personal-social domain DQ decreased by 4.474 points(P=0.023,95％CI:-8.316--0.631).Compared with young children via natural vaginal delivery(NVD),the gross motor domain DQ of young children via caesarean section(CS)decreased by 4.890 points(P=0.008,95％CI:-8.499--1.281),the fine motor domain DQ decreased by 3.373 points(P=0.037,95％CI:-6.532--0.213),the language domain DQ decreased by 7.621 points(P=0.004,95％CI:-12.826--2.416),per-sonal-social domain DQ decreased by 6.232 points(P=0.001,95％CI:-10.006--2.457).The results of bi-nary logistic regression models showed,compared with young children via NVD,the risk of gross motor domain retar-dation in young children increased(OR=1.763,95％CI:1.003-3.100),the risk of fine motor domain retardation increased(OR=2.217,95％CI:1.235-3.980),the risk of language domain retardation increased(OR=3.306,95％CI:1.080-10.124).Conclusion Young children with suspected neurobehavioral delays were more likely to have delayed development in language domain than in other domains,boys had lower DQ in language domain and personal-social domain than girls,and the development of young children via CS was slower than that via NVD.Fo-cus should be on the language development of young children especially on the language and personal-social devel-opment of boys.Carefully chose delivery way.Focus should be placed on assessment of young children's comprehen-sive neurobehavioral development in early time.