Partial coverage restoration

Full coverage crown

1. Removing the destructed tooth structure by following the outline of the defective area and old restoration.

2. The supragingival margin is common ensuring

- less danger to the periodontal tissue [1] ,

- finishable margin [10] ,

- daily cleanable margin,

- easy check up and detection of dental caries.

3. Remaining tooth structure used as a guide to create physiologic tooth contour [2] and [5] .

4. Requiring an efficient adhesive system [7] .

1. Removing the circumferential tooth structure.

2. The gingival-level margin is common, but

- may be harmful to the periodontal tissue,

- difficult to access to finish the margin,

- difficult to access for daily cleaning,

- difficult to check up and detect the dental caries.

3. Suitable when needing to change the occlusion or alignment of the tooth [10] .

4. Conventional luting cement is sufficient [10] .