Khoat-khí kî-hêng

Khoat-khí kî-hêng (Hàn-jī: 缺齒畸形, Eng-gí: hypodontia) mā kiò-chò khí-sò· bô-kàu chhùi-khí kî-hêng (oligodontia), nā oân-choân bô chhùi-khí tio̍h hō-chò bô-khí kî-hêng (anodontia), bô-khí kap khiàm-khí tī ni-khí khí-lia̍t kap éng-kiú-khí khí-lia̍t lóng-ū khó-lêng hoat-seng. I kah ûi-thoân ū koan-hē, khoân-kéng in-sò· mā chiâⁿ tiōng-iàu, koh-lâi sin-thé kî-thaⁿ pō·-ūi ê sian-thian-sèng he̍k hoat-io̍k-sèng chiàng-gāi mā-ē ín-khí hoat-seng, hó-pí-kóng ûi-thoân-sèng gōa-phōe-hio̍h kiat-kàu put-liông (hereditary ectodermal dysplasia) tio̍h-ē pān-sûi khiàm-khí ê hoat-seng.

Khoat-khí sī chiâⁿ phó·-phiàn ê chêng-hêng, it-poaⁿ thóng-kè hián-sī ē-hâi tē-2 éng-kiú sió-kiū-khí khoat-sit siāng-chē, koh-lâi sī téng-ham éng-kiú chhek mn̂g-khí, téng-ham tē-2 éng-kiú sió-kiū-khí, téng-ē-ham ê tē-3 éng-kiú tōa-kiū-khí.

Bô-khí kap khoat-khí kî-hêng sī chhùi-khí ê sian-thian hoat-io̍k bô-kàu, pēng m̄-sī chhùi-khí hoat bē chhut--lâi, mā m̄-sī bán chhùi-khí liáu ê chêng-hêng. Bán chhùi-khí liáu-āu ê chêng-hêng kiò-chò chhùi-khí sòng-sit (tooth loss).