Which of the following can increase the chances of successful osseointegration of a dental implant?
1. An atraumatic surgical approach.
2. The availability of dense cancellous bone.
3. A good initial stability of the implant.
4. Immediate loading of the implant.

(1) and (3)

(1) (2) (3)

(2) and (4)

(4) only

All of the above.