Hierarchy of objectives in implant placement to maximize esthetics: use of pre-angulated abutments.

Limitations in position, quality, or dimension of bone often require that implants be placed in a nonideal axial inclination. Use of preangulated abutments may be the method of choice when anatomic limitations preclude the axial placement of an implant. This paper discusses the indications for and advantages of the use of preangulated abutments to fulfill esthetic and functional objectives.