Hypomineralized Second Primary Molars-A Case Report

牙釉質礦化不全第二乳臼齒－病例報告

蕭以潔(Yi-Chieh Hsiao) ； 王姻麟(Yin-Lin Wang) ； 張曉華(Hsiao-Hua Chang) ； 黃桂芬(Guay-Fen Huang) ； 郭敏光(Ming-Kuang Guo)

《臺灣兒童牙醫學雜誌》 18卷2期 (2018/06) Pp. 66-70

https://doi.org/10.6319/TJPD.201806_18(2).0004

摘要

Enamel hypomineralization is a qualitative defect of the enamel caused by a disturbance during initial calcification and/or during the maturation phase of enamel formation. Hypomineralized defects have been observed on second primary molars and are described as Hypomineralized Second Primary Molars (HSPM). This case report illustrates a 4-year-1-month-old girl who presented hypomineralized defects in all second primary molars. Initially these teeth developed normally but the enamel began to show areas of weakness, followed by breakdown. Caries developed on the breakdown site. After removing the caries and porous enamel, the four second primary molars were restored with stainless steel crowns to protect them from further breakdown and caries development. It is crucial to diagnose HSPM as early as possible to reduce the vulnerability of the affected primary molars by focusing on their preventive and restorative treatments.

關鍵字

Hypomineralized Second Primary Molars ； Hypomineralization ； Primary Tooth

並列摘要

牙釉質形成的過程中，於鈣化階段、或是成熟階段受到干擾而造成的牙釉質缺陷，稱為牙釉質礦化不全。在乳牙齒列中，第二乳臼齒常被觀察到牙釉質礦化不全，稱為礦化不全第二乳臼齒。這篇病例報告敘述一位四歲一個月大的女孩其四顆第二乳臼齒都有礦化不全的現象，這四顆牙齒在剛萌發至口內時，牙釉質是完整的，但過了一段時間後，部份牙釉質開始崩壞，並在崩壞處有齲齒形成。治療方式為：將這四顆牙齒的齲齒與脆弱齒質移除後，再使用不銹鋼牙套復形，以避免再度崩壞。對於礦化不全第二乳臼齒，早期發現與診斷，並以預防與復形做為治療目標，可降低未來治療的複雜性。

並列關鍵字

牙釉質礦化不全第二乳臼齒 ； 牙釉質礦化不全 ； 乳牙