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].

Core Viewpoint - The article discusses the issue of gum recession, its causes, symptoms, and the importance of oral hygiene, while promoting a specific toothpaste product developed by a team from Peking University that claims to help with gum health and sensitivity issues [2][3][11]. Summary by Sections Gum Recession and Its Impact - Gum recession, or gum shrinkage, exposes the tooth roots and can lead to tooth loosening or loss [2][3]. - Approximately 50% of people in China experience gum recession, which can affect aesthetics, leading to visible gaps between teeth, known as "black triangles" [7]. - The primary cause of gum recession is often plaque buildup, which leads to chronic irritation of the gums [9]. Symptoms and Consequences - Symptoms of gum recession include swollen gums, bleeding while brushing, exposed tooth roots, increased tooth sensitivity, and tooth mobility [5][11]. - If left untreated, gum recession can result in significant dental issues, including tooth loss [11]. Prevention and Treatment - Maintaining good oral hygiene, including proper brushing techniques, is crucial to prevent further gum recession [11]. - The article emphasizes that while gum recession can be managed to prevent worsening, reversing it is challenging [11]. Product Promotion - The article promotes "Nobida Rebuild" toothpaste, developed by a Peking University research team, claiming it can help maintain gum health and reduce oral issues [13][28]. - Clinical trials indicate that after two weeks of use, sensitivity decreased by 39.44%, and after four weeks, it decreased by 56.34% [31]. - The toothpaste contains HAP-Rebuild technology, which is said to help repair damaged enamel and reduce plaque buildup [59][70]. Unique Selling Proposition - The toothpaste is marketed as using ingredients similar to those found in teeth, specifically hydroxyapatite (HAP), which is effective in dental care [61][74]. - It is claimed that the product not only cleans but also protects and repairs enamel, unlike traditional whitening toothpastes that may damage enamel [78][86]. Pricing and Offers - The pricing for the toothpaste is presented, with various package options available, including discounts for bulk purchases [19][93]. - A promotional offer includes a free trial product with the purchase of five tubes, along with a money-back guarantee [21][95].