Violation
Which of the following will improve the prognosis of a rebonded fractured tooth fragment? 1. Total etching and dentin bonding. 2. Use of a groove in the fragment. 3. Having a single larger fragment to rebond. 4. Reinforcing the fracture line with composite.
All of the above.
(4) only
(2) and (4)
(1) and (3)
(1) (2) (3)