牙齒變色的原因與機制

An Update on Etiologies and Mechanisms of Tooth Discoloration

陳錦(Gin Chen) ； 廖偉誠(Wei-Chen Liao)

《中華民國家庭牙醫學雜誌》 12卷3期 (2017/12) Pp. 14-25

https://doi.org/10.6566/JFD.201712_12(3).0002

摘要

牙齒變色的成因，以發生的部位或位置與發生的原因可以概分為外因性（extrinsic）因素與內因性（intrinsic）因素兩種。外因性牙齒變色發生在牙齒表面，其染色可以分為金屬與非金屬的物質所致。而內因性牙齒變色則因由於牙釉質與牙本質內的誘色物質所致，一般而言可以分為先天（牙齒萌發前）與後天（牙齒萌發後）兩種。如果以治療的痊癒而言，外因性的牙齒變色比內因性的牙齒變色容易獲得較好的治療的效果，而後天性牙齒變色卻比先天性（congenital）牙齒變色有較佳的治療結果。

關鍵字

牙齒變色 ； 外因性因素 ； 內因性因素

並列摘要

Dental discolorations are divided into extrinsic and intrinsic factors according to the location and etiology of the stain. Extrinsic dental stain is found on the tooth surface and could be subdivided or classified into two categories: metallic and nonmetallic. Intrinsic dental stain is due to the presence of chromogenic material within enamel or dentin. This type of stain can be divided into two groups: congenital (pre-eruptive) and acquired (post-eruptive). Basically, the treatment outcome of extrinsic dental stains will be much better than intrinsic dental discolorations.

並列關鍵字

tooth discoloration ； extrinsic factor ； intrinsic factor