新华社北京9月18日电（记者李佳巍）"一直早刷晚刷，足够重视，为啥牙齿还是老出问题？"时不时响起"警报"的牙齿健康，让不少一天两次"按 时足量"刷牙的网友疑惑不解。 陕西省西安市新城区通济坊小学的学生在西安交通大学口腔医院口腔科普教育基地学习正确的刷牙方法。新华社记者 李一博 摄 横向"拉锯式"刷牙，错！ "众多牙病患者都存在牙齿楔状缺损问题，而长期错误地横向'拉锯式'刷牙正是罪魁祸首。'越用力刷牙越干净'是个误区，这个举动就像拿砂纸磨 损牙颈，对牙齿造成的损伤不可逆。"北京大学口腔医院预防科主任医师荣文笙说。 为何刷牙不能横向"用力过猛"？专家介绍，牙釉质是人体最坚硬的组织，是保护牙齿的"盔甲"，但其厚度呈"山峰-山谷"分布，即牙冠部（咀嚼 面）最厚，牙颈部（牙龈边缘）最薄。横向刷牙时，刷毛与牙齿形成45°角切割力，长期作用就像用钢锉反复摩擦薄弱的"山谷"。 荣文笙说，许多人日常习惯侧重牙齿表面清洁，喜欢刷"顺手"的地方。而对于牙齿缝隙处往往忽视，清洁难以触达牙龈边缘、牙间隙等部位，这 一清洁"盲区"往往成为牙菌斑滞留重灾区，给"蛀牙刺客"邻面龋发生以及牙周疾病的发展提供了繁衍温床。 牙周病是影响我国居民口 ...

Core Insights - The oral healthcare market in China is experiencing rapid growth, with the market size expected to reach approximately 526.2 billion yuan by 2030, reflecting a compound annual growth rate (CAGR) of 11.8% over the next decade [1] - The private dental service market is projected to grow at a CAGR of 15.1%, while high-end dental services are expected to grow at a CAGR of 22.4% [1] - There is a significant gap in oral health awareness and treatment rates among the population, indicating a large untapped market potential [7][9] Market Trends - The oral healthcare market in China is expanding, with the dental care service market growing from 132 billion yuan in 2015 to 262 billion yuan in 2020, and expected to reach 752 billion yuan by 2030, with a CAGR of 11.1% from 2020 to 2030 [7] - The prevalence of periodontal diseases is increasing among younger populations, with a notable rise in incidence among individuals aged 35-44 [5][6] - The current oral health issues, such as high rates of cavities and periodontal diseases, are linked to inadequate oral hygiene practices and lifestyle factors [2][4] Policy and Health Initiatives - The Chinese government has implemented several policies aimed at improving oral health literacy and promoting healthy oral hygiene habits, including the "Healthy Oral Action Plan (2019-2025)" [4] - The promotion of oral health is recognized as a crucial component of the "Healthy China 2030" initiative, emphasizing the importance of preventive care and lifelong management of oral health [4] Market Segmentation - The dental service market can be segmented into high-end services targeting affluent urban populations, standardized services for the middle class, and basic services for rural areas, each requiring tailored strategies [7] - High-end dental institutions should focus on comprehensive, personalized services, while mass-market providers can leverage chain operations to achieve economies of scale [7] Health Implications - Oral health is closely linked to overall health, with periodontal diseases associated with systemic conditions such as diabetes and cardiovascular diseases [8][9] - Improving oral health can lead to reduced healthcare costs and better quality of life for individuals, highlighting the economic and social value of investing in oral healthcare [10]

口腔健康作为全身健康的重要组成，是每个人追求人生目标、保持良好状态的基础。中国口腔新健康行动公益推广大使、滑雪世界冠军郭丹丹结合自身 运动生涯传递口腔健康理念。希望所有不同年龄的人群，都要重视自身的口腔健康。在冠军精神的感召下，爱牙护齿的观念深深地种在每个听众的脑海。 9月5日，由中国口腔清洁护理用品工业协会、资阳市人民政府主办，资阳高新技术产业园区管理委员会、四川大学华西口腔医院承办，人民健康、小红 书、四川省口腔医学会、口腔疾病防治全国重点实验室（四川大学）、四川省口腔医疗科技创新促进会支持的"中国口腔新健康行动・川渝行"活动在中国牙 谷学术交流展览馆拉开帷幕。本次活动汇聚社会各界力量，旨在进一步推动川渝地区口腔健康知识普及，促进口腔健康产业协同发展，为"健康中国2030"规 划在区域内的深入实施注入新动能。 中国口腔清洁护理用品工业协会理事长郭强，协会名誉理事长相建强，协会秘书长高文颖，资阳市委常委、宣传部部长贾发扬，资阳市人民政府副市 长、安岳县委书记刘建华，四川大学华西口腔医院院长韩向龙和相关公益支持单位代表参与了本次活动。 郭强表示，当前我国口腔健康形势严峻，两次刷牙率与世界发达国家水平相比还有很 ...

Core Viewpoint - The article highlights the journey of usmile in redefining the oral health industry by establishing measurable standards for cleaning effectiveness, marking a significant shift from traditional perceptions of electric toothbrushes as mere appliances to essential health tools [1][3]. Group 1: Company Positioning and Strategy - usmile positions itself as a "oral health tool" rather than a small appliance, focusing on effective plaque removal [3]. - The company has invested over 500 million in R&D, forming a cross-disciplinary laboratory with teams in oral medicine, biomaterials, and algorithms [3]. - The brand's philosophy emphasizes that the essence of an electric toothbrush lies in its ability to effectively remove harmful bacteria, not just its motor capabilities [6]. Group 2: Challenges and Breakthroughs - Between 2019 and 2021, usmile faced skepticism from the industry regarding its biological experiments and concerns from shareholders about ROI [6]. - The initial failure rate for plaque culture experiments exceeded 70%, leading to repeated setbacks in achieving stable adhesion and accurate simulation [6]. - A pivotal moment occurred when a professional medical team identified a "24-hour golden window" linking saliva exposure time to plaque maturity, allowing for more accurate in vitro plaque modeling [6]. Group 3: Standardization and Industry Impact - From 2023 to 2025, usmile opened its laboratories to other brands and third-party institutions to validate its methods, fostering trust through reproducibility [7]. - The company has made its core plaque culture technology available for free through industry associations, breaking down technological barriers [7]. - The establishment of standards has enabled usmile to create a health loop integrating R&D, quality control, and user outcomes, transforming vague cleaning claims into quantifiable plaque removal rates [9]. Group 4: Innovation and User Engagement - Innovations driven by laboratory findings have led to product enhancements, such as the addition of real-time reminders for improved cleaning efficiency [9]. - A medical-grade standard for batch testing ensures that only toothbrush heads meeting cleaning rate thresholds are produced, enhancing product reliability [9]. - The introduction of a "cleaning rate file" allows consumers to access third-party reports, shifting trust from brand promises to scientific consensus [9]. Group 5: Long-term Vision and Social Responsibility - usmile aims to transform industry standards and drive ecological leadership by initiating new standard research and continuous technological breakthroughs [12]. - The company’s "One Small Toothbrush" initiative provides free oral screenings to underprivileged children, promoting preventive health care and demonstrating corporate social responsibility [12]. - The ten-year journey of usmile illustrates that in the health consumer sector, scientific technology serves as the most robust brand moat, with aspirations to make Chinese standards a universal language in global oral health [13].

Core Insights - Periodontal disease is a common health issue affecting over 90% of adults in China, often overlooked until severe symptoms arise [1][2] - Early signs such as gum bleeding and bad breath are frequently ignored, leading to more serious conditions like periodontitis [2][5] - The treatment of periodontal disease is a long-term process involving multiple stages, and maintaining oral hygiene is crucial to prevent recurrence [4][5] Group 1: Understanding Periodontal Disease - Periodontal disease is characterized by chronic inflammation of the supporting structures of teeth, primarily caused by poor oral hygiene leading to plaque and tartar buildup [2][3] - Risk factors include systemic conditions like diabetes, lifestyle choices such as smoking, and genetic predispositions [3] - The disease is linked to various health issues, including cardiovascular diseases and Alzheimer's disease, highlighting its systemic impact [2] Group 2: Treatment and Management - Treatment involves four stages: basic treatment (scaling), surgical intervention if necessary, multidisciplinary repair or orthodontic treatment, and long-term maintenance [4] - Patients often experience anxiety and frustration during treatment, especially when faced with tooth loss or the need for extensive procedures [5][6] - Successful management requires regular dental check-ups and adherence to oral hygiene practices, including proper brushing techniques and the use of dental floss [8][9] Group 3: Prevention and Awareness - Many individuals lack awareness of the importance of regular dental check-ups, often seeking treatment only after significant issues arise [9] - Education on proper oral hygiene practices is essential, as many people do not receive adequate guidance on brushing and flossing [9] - The introduction of national policies to reduce the cost of dental implants may improve access to treatment for those affected by periodontal disease [7]

Core Viewpoint - The article highlights the rising popularity of Wei Dongyi, an assistant professor at Peking University, who has gained significant attention on social media, amassing over 23 million followers. Concerns regarding his health, particularly dental issues, have also been raised by the public and the university [1][2]. Group 1 - Wei Dongyi, known as "Wei Shen," is an assistant professor and researcher at the School of Mathematical Sciences at Peking University, focusing on mathematical research and teaching [2]. - As of September 9, Wei's social media account has surpassed 23 million followers, indicating a strong public interest in his work and persona [1]. - The university has expressed a commitment to ensuring a conducive environment for Wei to focus on his academic responsibilities while addressing public concerns about his health [2]. Group 2 - Wei has been reported to have serious periodontal issues, with visible dental problems noted in his recent video, prompting public concern for his health [2]. - The university has been proactive in monitoring Wei's health, conducting annual check-ups, and providing support for his dental treatment [2]. - Wei is recognized for his strong analytical and computational skills in mathematics, with a research focus on partial differential equations and geometric analysis, having published multiple papers in international mathematics journals [2].

Core Viewpoint - The article discusses the increasing concern over oral health, particularly focusing on the phenomenon of widening gaps between teeth, its causes, implications, and preventive measures. Group 1: Causes of Widening Gaps - Aging leads to gum recession and bone loss, which can cause teeth to appear more spaced apart [3][4] - Periodontal disease affects nearly 90% of adults aged 35-44, contributing significantly to the widening of gaps between teeth [5] - Incorrect dental habits, such as using teeth as tools or improper brushing techniques, can damage gums and exacerbate the issue [7][9] Group 2: Implications of Widening Gaps - Aesthetic concerns arise as larger gaps can create an impression of aging and poor dental health [11] - Functional issues include food trapping, increased risk of cavities, and worsening bad breath due to difficulty in cleaning [12] Group 3: Preventive Measures - Regular dental cleanings every 1-2 years can help remove tartar and prevent gum recession [13] - Proper brushing techniques and the use of dental floss instead of toothpicks are recommended for maintaining gum health [14] - Timely dental restoration for missing teeth is crucial to prevent adjacent teeth from shifting and creating larger gaps [16]