上顎骨擴張（palatal expansion）是一種常見配合箍牙的治療方式，尤其適用於上顎過窄、牙齒擠擁、咬合不正或有呼吸問題的情況。對於計劃矯齒的人來說，關鍵問題不是「流唔流行」，而是「究竟我需唔需要做？」、「做咗實際有咩幫助？」。

when toothache occurs, many people immediately assume it's just "heatiness" or brushing too hard. However, this is often an early sign of gingivitis or periodontal disease. When the gums are chronically inflamed and plaque builds up, the supporting tissues around the teeth are gradually affected. If the condition continues to worsen, it can lead to recurring bleeding gums, toothache, bad breath, widening gaps between teeth, and even loose teeth. Periodontal disease doesn't develop overnight; it's the result of prolonged poor oral hygiene. Therefore, if bleeding gums and toothache occur simultaneously, it shouldn't be ignored.

牙齒痛到睡不著覺是許多人半夜最煎熬的經歷，劇烈疼痛往往讓人輾轉難眠，甚至影響日常生活。這種情況通常源於牙髓神經受到強烈刺激，或牙周組織出現急性炎症反應。

牙肉發炎是香港人常見的口腔問題，初期表現為刷牙出血、牙齦紅腫和不適感。若長期忽視牙肉發炎的警訊，可能演變為牙周病，導致牙齒鬆動甚至脫落。隨著都市生活節奏加快、飲食習慣改變和壓力增加，越來愈多香港人面臨牙肉健康問題。