| 摘要 |
FIELD: medicine. ^ SUBSTANCE: device has base manufactured from imperfect metals, facing layer and gold coating on internal base surface. The gold coating is available as belt-shaped strip on pericervical base crown part from its oral side to the middle of the approximal surface. The gold coating is optionally available as belt-shaped strip on pericervical base crown part from its vestibular side to the middle of the approximal surface. ^ EFFECT: improved edge adjacency, esthetic and functional quality. ^ 2 cl, 1 dwg |
