[ 牙cool ]戈英文係咩?

braces or bracket

i lived in usa, normally they are calling like this.

hope to help u..thanks

brace

You can check with yahoo dictionary and see note 4.

retainer

re‧tain‧er1  /rɪˈteɪnər/ Pronunciation Key - Show Spelled Pronunciation[ri-tey-ner] Pronunciation Key - Show IPA Pronunciation

–noun 1. a person or thing that retains.
2. a servant or attendant who has served a family for many years.
3. Also called cage, separator. Machinery. a ring separating, and moving with, balls or rollers in a bearing.
4. Orthodontics. a. a fixed or removable device worn in the mouth to hold the teeth in their new position during the adaptive period after straightening appliances have been removed.
b. Prosthodontics. a part on a bridge or the like by which the bridge is attached to the natural teeth.

2006-11-17 10:54:42 補充：
請看第4行解釋...