Core Viewpoint - The article emphasizes the significance of gum health, particularly focusing on gum recession, its causes, symptoms, and the innovative solution provided by the Rebuild toothpaste developed by a team from Peking University [4][10][12]. Group 1: Gum Recession and Its Impact - Gum recession, or gum shrinkage, exposes the tooth roots, leading to potential tooth loosening and loss [3][4]. - Approximately 50% of the population in China experiences gum recession, which can affect aesthetics and lead to visible gaps between teeth, known as "black triangles" [8]. - Symptoms of gum recession include swollen gums, bleeding while brushing, tooth sensitivity, and loose teeth [6]. Group 2: Causes and Prevention - While aging contributes to some degree of gum recession, the majority is attributed to plaque buildup, which causes chronic irritation to the gums [10]. - Effective oral hygiene practices, including proper brushing, can help prevent further gum recession and associated dental issues [12][14]. Group 3: Product Introduction and Efficacy - The Rebuild toothpaste, developed by a Peking University doctoral team, is clinically validated to improve oral health and reduce sensitivity [23][25]. - Clinical trials showed a 39.44% reduction in sensitivity after two weeks and a 56.34% reduction after four weeks of use [28]. - The toothpaste utilizes HAP-Rebuild technology, which incorporates hydroxyapatite (HAP), a natural component of teeth, to combat plaque and support gum health [48][50]. Group 4: Unique Selling Proposition - The Rebuild toothpaste claims to physically reduce plaque and alleviate common oral issues without damaging tooth enamel, unlike many whitening toothpastes that can be abrasive [70]. - It is positioned as a safe and effective solution for individuals with sensitive gums, offering a long-term approach to oral care [76][78].

Core Viewpoint - The article emphasizes the importance of addressing gum recession, which affects approximately 50% of the population in China, and introduces a new toothpaste developed by a team from Peking University that claims to improve gum health and reduce sensitivity [8][12][25]. Group 1: Gum Recession and Its Implications - Gum recession, or gingival recession, is a condition where the gum tissue pulls back, exposing the tooth roots, which can lead to tooth sensitivity and even tooth loss [3][4]. - Symptoms of gum recession include swollen gums, bleeding while brushing, exposed tooth roots, and increased tooth sensitivity to temperature changes [6][10]. - The primary cause of gum recession is the accumulation of dental plaque, which leads to chronic irritation of the gums [10][12]. Group 2: Product Introduction and Efficacy - The product introduced is the Nobida Rebuild Gum Care Toothpaste, developed by a team of PhD researchers from Peking University, which has received clinical validation from dental hospitals [23][25]. - Clinical reports indicate that after two weeks of use, the sensitivity of participants decreased by 39.44%, and after four weeks, it decreased by 56.34% [28]. - The toothpaste claims to reduce plaque index by an average of 90.5% after two weeks of use, demonstrating significant efficacy in improving oral health [33]. Group 3: Unique Ingredients and Technology - The toothpaste utilizes HAP-Rebuild technology, which incorporates hydroxyapatite (HAP), a natural component of teeth and bones, to help reduce plaque and improve gum health [55][57]. - HAP is known for its ability to physically reduce plaque and protect against common oral issues, making it a key ingredient in the formulation [63][68]. - The product is designed to be safe and effective, with third-party testing confirming its ability to inhibit plaque and alleviate gum problems [34][36].

Core Points - The article emphasizes the importance of brushing teeth at least twice a day to maintain oral health and prevent dental issues such as cavities and periodontal disease [4][6]. Group 1: Importance of Brushing Twice Daily - Oral health is threatened by two main enemies: cavities and periodontal disease, caused by bacteria that accumulate on teeth [4]. - Bacterial plaque formation occurs in stages, with significant maturation happening within 24 hours, making it crucial to brush at least twice daily to prevent plaque from becoming difficult to remove [5][6]. Group 2: Importance of Nighttime Brushing - Nighttime brushing is particularly important as it helps control the bacterial load on teeth, especially since saliva production decreases during sleep, reducing natural cleaning [9]. - Brushing at night effectively removes food residues accumulated throughout the day, which can feed bacteria and lead to tooth decay [10]. - Nighttime brushing helps eliminate dental plaque, reducing the risk of cavities and periodontal disease [11]. - It also mitigates oral odor caused by bacteria breaking down food residues, which can be more pronounced if brushing is skipped [12].

Core Viewpoint - The article emphasizes the importance of brushing teeth at least twice a day to maintain oral health and prevent dental issues such as cavities and periodontal disease. Summary by Sections Importance of Brushing Twice Daily - Brushing twice a day is essential to combat the two main enemies of oral health: cavities and periodontal disease, which are caused by bacteria accumulating on teeth surfaces over time [1]. Stages of Plaque Formation - **Initial Attachment (0-2 hours)**: After brushing, a small number of loose bacteria begin to attach to the teeth using a saliva film [2]. - **Bacterial Attachment (2-12 hours)**: More bacteria attach to the teeth, becoming more firmly established [3]. - **Mature Plaque (12 hours)**: Attached bacteria start to reproduce and form a complex biofilm structure, making it harder to remove [4]. - **Fully Matured Plaque (24 hours)**: After 24 hours, plaque becomes a complex microbial community that poses a significant threat to oral health, leading to cavities and periodontal diseases [5]. Importance of Nighttime Brushing - Nighttime brushing is crucial as saliva production decreases significantly during sleep, reducing the natural cleaning effect of saliva [8]. - Food residues in the mouth can lead to an acidic environment that erodes tooth enamel, making nighttime brushing vital to remove these residues [9]. - Bacteria proliferate rapidly at night, and brushing before sleep helps to minimize plaque accumulation and reduce the risk of dental issues [10]. - Oral odor is often worse in the morning due to bacterial activity overnight; brushing at night helps to mitigate this issue [11]. - Oral health is linked to overall health, and nighttime brushing can reduce the risk of chronic diseases by lowering bacterial levels in the mouth [11]. Conclusion - Establishing a nighttime brushing routine is essential for both short-term and long-term oral health, and parents should encourage this habit in their children [11].

Core Viewpoint - The article discusses the issue of "gum recession," also known as "gingival recession," which is a common symptom associated with periodontal disease. It emphasizes that this condition is not directly related to aging and highlights the importance of proper oral hygiene to prevent further complications [1][2][4]. Group 1: Causes and Prevention - "Gum recession" is primarily caused by untreated periodontal inflammation and improper brushing techniques, rather than aging [2][4]. - Correcting improper brushing habits can effectively prevent further gum recession [3]. - Most individuals experiencing gum recession are likely suffering from advanced stages of periodontal disease, which can be managed with timely treatment and good oral hygiene practices [3][4]. Group 2: Health Implications - Gum recession can lead to significant health issues, including root sensitivity, food impaction, and potential tooth loss [4]. - The presence of gum recession indicates that periodontal disease has progressed to a serious level, which may result in further complications if not addressed [4]. Group 3: Misconceptions - Common misconceptions include the belief that dental cleaning causes gum recession, when in fact, the recession may have already occurred due to underlying issues [7]. - Another misconception is that bleeding gums during brushing should be avoided, whereas it is a warning sign that requires continued attention to oral hygiene [8]. - The idea that tooth loss is inevitable with age is incorrect; maintaining good oral hygiene from a young age can lead to retaining a healthy set of teeth into old age [10].

Core Viewpoint - The article emphasizes the importance of proper dental hygiene practices, particularly the correct brushing technique, to prevent dental issues such as tooth decay and gum disease. Group 1: Brushing Techniques - Many patients suffer from wedge-shaped defects in their teeth due to incorrect horizontal "sawing" brushing techniques, which can cause irreversible damage to the enamel [3][4] - The enamel, while the hardest tissue in the human body, is unevenly distributed, making it vulnerable to damage from improper brushing methods [3] - Effective brushing should avoid horizontal motions and instead follow a method that brushes from the gum line towards the crown of the tooth [10] Group 2: Importance of Cleaning Between Teeth - Cleaning between teeth is often neglected, leading to plaque accumulation and increasing the risk of cavities and periodontal disease [4][6] - Periodontal disease is a common chronic condition affecting oral health in China, and if not addressed, it can lead to irreversible damage [4] - The basic principle for preventing periodontal disease and cavities is thorough plaque removal, which includes using dental floss and other cleaning tools [4][8] Group 3: Recommendations for Effective Brushing - Effective brushing involves covering all areas of the mouth, ensuring no spots are missed [7] - Special attention should be given to cleaning between teeth and in grooves, using tools like dental floss and interdental brushes [8] - Brushing should occur twice daily for at least three minutes, with a focus on the evening brushing session [9] - The choice of toothbrush is crucial; it should have bristles of moderate hardness and be replaced every three months or when bristles fray [11]

Core Viewpoint - The article emphasizes the significance of addressing gum recession, a common dental issue affecting approximately 50% of the population in China, which can lead to severe consequences such as tooth loss if not managed properly [8][12]. Summary by Sections Gum Recession Overview - Gum recession, or gingival recession, refers to the retreat of gum tissue, exposing the tooth roots and potentially leading to tooth mobility and loss [3][4]. - Symptoms include swollen gums, bleeding while brushing, sensitivity to temperature changes, and visible gaps between teeth [6]. Prevalence and Causes - A significant portion of the population, around 50%, experiences gum recession, particularly affecting the aesthetics of front teeth [8]. - The primary cause of gum recession is the accumulation of dental plaque, which leads to chronic irritation and inflammation of the gums [10]. Treatment and Prevention - While gum recession can be managed to prevent further deterioration, reversing already receded gums is challenging [12]. - Regular brushing and proper oral hygiene are crucial in mitigating gum issues [14]. Product Introduction - The article introduces "Nobida Rebuild Gum Care Toothpaste," developed by a team from Peking University, claiming to improve oral health and reduce gum problems [14][27]. - Clinical trials indicate that after two weeks of use, sensitivity decreased by 39.44%, and after four weeks, it decreased by 56.34% [32]. Clinical Validation - The toothpaste has undergone clinical validation at two dental hospitals, demonstrating its effectiveness in reducing sensitivity and improving gum health [29][38]. - A significant reduction in plaque index was reported, with an average decrease of 90.5% after 12 weeks of use [37]. Unique Selling Proposition - The toothpaste utilizes HAP-Rebuild technology, which incorporates hydroxyapatite (HAP), a natural component of teeth, to repair enamel and reduce plaque [60][62]. - Unlike traditional toothpastes that may cause enamel erosion, this product aims to enhance enamel strength and provide a protective barrier against sensitivity [75][80]. Market Positioning - The product is positioned as a premium option compared to traditional toothpastes, with a focus on long-term oral health benefits versus the costs associated with dental procedures [92]. - Pricing details include various package options, with promotional offers for bulk purchases [94][95].

Core Viewpoint - The article emphasizes the significance of gum health, particularly focusing on the issue of gum recession, its causes, symptoms, and the importance of preventive care through effective dental products [3][4][10]. Summary by Sections Gum Recession and Its Impact - Gum recession, or gum shrinkage, exposes the tooth roots, leading to potential tooth mobility and loss [3][4]. - Approximately 50% of the population in China experiences gum recession, which can affect aesthetics and lead to visible gaps between teeth, known as "black triangles" [8]. Causes and Symptoms - The primary cause of gum recession is the accumulation of dental plaque, which leads to chronic irritation of the gums [10]. - Symptoms include swollen gums, bleeding while brushing, exposed tooth roots, increased tooth sensitivity, and tooth mobility [6]. Prevention and Treatment - While gum recession can be managed to prevent further deterioration, reversing already receded gums is challenging [12]. - Regular brushing and the use of specialized dental products are crucial for maintaining gum health [14]. Product Introduction: Rebuild Gum Care Toothpaste - The article introduces "Rebuild Gum Care Toothpaste," developed by a team from Peking University, claiming to improve oral health and reduce various dental issues [14][27]. - The toothpaste has undergone clinical validation, showing significant reductions in tooth sensitivity and plaque index after two and four weeks of use [32][37]. Clinical Evidence - Clinical trials indicate a 39.44% reduction in sensitivity after two weeks and a 56.34% reduction after four weeks of using the toothpaste [32]. - The product also demonstrated a 90.5% average decrease in plaque index after 12 weeks [37]. Unique Selling Proposition - The toothpaste utilizes HAP-Rebuild technology, which incorporates hydroxyapatite (HAP), a natural component of teeth, to repair enamel and reduce plaque effectively [60][62]. - Unlike traditional whitening toothpastes that may damage enamel, this product aims to enhance tooth health while providing whitening benefits through safe ingredients [82]. Pricing and Offers - The toothpaste is available in various packaging options, with prices starting from 128 yuan for a three-pack of 50g tubes [20][94]. - Promotional offers include free samples and a money-back guarantee for unsatisfied customers [22][96].

Core Viewpoint - The article discusses the health implications of whether to brush teeth before or after breakfast, indicating that both practices are acceptable according to dental health experts [1]. Group 1: Importance of Brushing - The primary goal of brushing teeth is to remove dental plaque, a sticky film of bacteria that adheres to the tooth surface, which can proliferate if not regularly cleaned [3]. - Effective brushing should include cleaning the surfaces of the teeth, including the front, back, between teeth, gum line, and tongue [3]. Group 2: Brushing Techniques - The article recommends the "Bass technique" for brushing, which involves seven steps to ensure thorough cleaning [6]. - Key steps include positioning the toothbrush at a 45-degree angle, using short horizontal movements, and ensuring to clean all surfaces of the teeth and tongue [6]. Group 3: Common Misconceptions - Misconceptions include the belief that "natural and additive-free" toothpaste is always safer, that harder brushing leads to cleaner teeth, and that brushing for a short duration is sufficient [8]. - It is advised to replace toothbrushes every three months to maintain cleaning effectiveness [8]. Group 4: Choosing Toothbrushes and Toothpaste - When selecting a toothbrush, factors such as head size, bristle softness, and individual oral health conditions should be considered [9]. - For toothpaste, fluoride-containing options are recommended for preventing cavities, while those with desensitizing ingredients are suggested for sensitive teeth [10]. Group 5: Recommended Oral Care Routine - A suggested routine includes brushing with a soft-bristled toothbrush and fluoride toothpaste for two minutes after breakfast, followed by flossing [12]. - Regular dental check-ups every six months to a year are recommended to identify potential dental issues early [12].

Core Viewpoint - The article emphasizes the significance of gum health and introduces a new toothpaste, Nobida Rebuild, developed by a team from Peking University, which claims to effectively address gum recession and related dental issues through innovative technology and clinical validation [2][11][28]. Group 1: Gum Recession and Its Impact - Gum recession, or gingival recession, is a condition where the gum tissue pulls back, exposing the tooth roots, which can lead to tooth sensitivity, looseness, and even loss [3][5]. - Approximately 50% of the population in China experiences gum recession, particularly affecting the aesthetics of front teeth, leading to visible gaps known as "black triangles" [7][9]. - While aging contributes to some degree of gum recession, the primary cause is often bacterial plaque accumulation, which leads to chronic irritation and inflammation of the gums [9][11]. Group 2: Nobida Rebuild Toothpaste - Nobida Rebuild toothpaste is developed using HAP-Rebuild technology, which utilizes hydroxyapatite (HAP), a natural component of teeth, to repair enamel and reduce plaque [59][61]. - Clinical trials indicate that after two weeks of use, participants experienced a 39.44% reduction in tooth sensitivity, and after four weeks, this reduction increased to 56.34% [31]. - The toothpaste has been clinically validated by two dental hospitals, demonstrating its effectiveness in improving oral health and reducing gum issues [28][36]. Group 3: Unique Selling Proposition - Nobida Rebuild toothpaste claims to physically reduce plaque and repair damaged enamel without the harsh effects of traditional whitening agents, which can erode enamel [70][81]. - The product is positioned as a cost-effective solution for maintaining oral health, suggesting that daily use can prevent costly dental procedures in the future [91][92]. - The toothpaste is marketed as safe for all users, including pregnant and breastfeeding women, and is backed by a satisfaction guarantee [86][95].