Amelogenesis Imperfecta
Pronunciation: am-ee-loh-JEN-eh-sis im-PUR-fek-tah
A hereditary condition characterised by defective enamel formation, resulting in teeth that are abnormally thin, soft, pitted, or discoloured.
Full Definition
Amelogenesis imperfecta (AI) is a group of inherited disorders affecting the quantity or quality of enamel, classified into hypoplastic, hypomaturation, and hypocalcified subtypes. Because the defect is intrinsic to the developing tooth, it cannot be attributed to environmental factors after eruption. Dental hygienists encountering AI patients must tailor prophylaxis and polishing protocols to avoid further enamel loss. Editors should ensure that copy correctly labels AI as a developmental, not a carious, condition. The condition is distinct from fluorosis, which is caused by excessive fluoride exposure during development.
Usage
Usage note: Distinguish carefully from 'dentinogenesis imperfecta', which affects dentin rather than enamel. Both may appear in the same patient record and must not be conflated.
In Context
- "The treatment plan noted that the patient's sensitivity was attributable to amelogenesis imperfecta rather than carious exposure." — Treatment plan document
- "When editing the referral letter, ensure amelogenesis imperfecta is not abbreviated to AI without first spelling out the full term." — Referral letter