[ˌperiəudɔnˈtɔlədʒi]
牙周病学：有关牙周组织和牙周病的科学- brace
- bracelet
- brachia
- brachial
- brachialgia
- brachiation
- brachi(o)-
- brachiocephalic
- brachiocrural
- brachiocubital
- brachiocyllosis
- brachiocyrtosis
- brachiofaciolingual
- brachium
- Bracht's maneuver
- brachy-
- Brachyarcus
- brachybasia
- brachycardia
- brachycephalia
- brachycephalic
- brachycephalism
- brachycephalous
- brachycephaly
- brachycheilia