2026 Hong Kong Children's Teeth Cleaning Guide: At what age can children have their teeth cleaned? Analysis of the causes of tooth decay and prevention tips for parents.
In addition to daily cleaning, regular teeth cleaning can further clean children's teeth and maintain good oral hygiene. Many children have likely experienced teeth cleaning during school dental checkups, but some parents still have concerns that their children are too young for it. In Hong Kong in 2026, dentists generally recommended that children establish a habit of regular checkups starting from age two. Teeth cleaning for children is not only for aesthetics, but also to remove plaque that cannot be brushed away, ensuring that baby teeth can healthily guide the eruption of permanent teeth.
I. The purpose of teeth cleaning for children: to remove threats that are not visible to the naked eye.
Teeth cleaning can help children remove plaque, tartar, and stains that adhere to the surface of their teeth.
Prevention of oral diseases: Makes the tooth surface smooth and clean, effectively preventing oral diseases such as periodontal disease.
Deep cleaning: Removes hard-to-reach areas that parents cannot easily brush during home care, preventing plaque calcification.
II. Children vs. Adults: The Key Points of Teeth Cleaning Differ Significantly
The two methods of teeth cleaning differ significantly in their focus and approach:
Adult teeth cleaning: Focus on cleaning tartar accumulated in the gingival sulcus. Because the gingival sulcus is deeper in adults, it is easier for hard lumps to accumulate, so it is recommended to have your teeth cleaned every six months to a year.
Teeth cleaning for children: Because the gum sulcus of baby teeth is shallow, there is not enough space for tartar to accumulate. The focus of teeth cleaning is to remove thick and hard plaque. If children do not clean their teeth properly, the plaque will become thicker and harder over time, and cannot be removed by brushing alone.
三、乳齒遲早會換，蛀牙真的不用理會嗎？
這是一個極其錯誤的觀念！
陪伴期長：換牙期會持續到 12 歲左右，乳齒需陪伴小朋友足足 12 年。
影響恆齒：嚴重的乳齒蛀牙若感染至根尖，會影響下方恆齒牙胚的發育。
咀嚼與發音：乳齒缺失會影響營養攝取及說話發音的清晰度。
四、2026 預防小朋友蛀牙的家長行動清單
小朋友蛀牙通常源於清潔不徹底、經常吃零食或飲夜奶習慣。家長應從以下三方面入手：
1. 正確使用含氟牙膏
氟化物是預防蛀牙的關鍵，但須注意用量：
3 歲以下：使用接近米粒大小的份量。
3 歲以上：使用豌豆大小的份量。
2. 監督與補刷 (Supervised Brushing)
小朋友的手部靈活度不足，難以徹底清潔。
6 歲以下：孩子自行刷完後，家長必須補刷一次。
小學生：家長仍應每天檢查刷牙成效，確保沒有遺漏後方大牙。
3. 調整飲食與睡眠習慣
早晚刷牙：不能因趕時間或孩子累了而省略晚間刷牙。
戒除夜奶：喝完奶直接睡覺會令牙齒長期浸泡在奶水中，極易形成「奶瓶齲」。
Part Three: FAQ (Frequently Asked Questions)
Q1：小朋友洗牙後牙肉流血係咪牙醫太用力？
A： 洗牙後幾天出現輕微不適或牙齦出血是正常的，這通常是因為原有的牙菌斑引發了輕微牙齦發炎。只要繼續保持清潔，這些症狀會在一週內消失。
Q2：2026 年香港小朋友洗牙大約幾錢？
A： 私家牙科診所的小朋友洗牙服務收費約為 HK$400 - $800，通常包含口腔檢查及拋光。部分診所提供兒童牙科保險或套票優惠。
Q3：幾時應該帶小朋友去第一次洗牙？
A： 一般建議在小朋友長出第一顆牙齒或一歲生日時進行第一次檢查。至於實際洗牙時機，應由牙醫視乎牙菌斑積累情況而定。