Screw-Retained Implant Prostheses
Implant Prosthesis Fixed with Screw
Screw-retained implant-supported prosthesis is a fixed design in which the restoration is attached to the implant abutment with screws. Provides retrievability by the physician; Peri-implantitis treatment or occlusion revision may be more difficult in cement-bonded prostheses.
All-on-4 or All-on-6 is widely preferred in full arch cases where multi-unit abutment is used. Screw retention can also be evaluated in single-implant crowns.
Design and Aesthetic Balance
The screw access hole is opened on the restoration surface; It is masked with composite in the anterior region. Screw position is planned considering the balance of aesthetics and function.
Abutment selection and connection design affect the gingival contour. The spin value is applied in accordance with the manufacturer's recommendation.
Differences from Cement Retained Prosthesis
There is no risk of cement overflow in the screw system; No cement accumulation is observed under the peri-implant mucosa. The prosthesis can be dismantled for maintenance and repair.
Cement retained prostheses may be preferred in some aesthetic cases because they do not have a screw hole; Both systems have their own specific indications.
Maintenance and Periodic Check
Screw torque control can be done during periodic inspection. If relaxation is noticed too early, it may become boring; Although a broken screw is rare, it may require revision.
Screw access hole composite cover may wear over time; renewable. Professional cleaning supports hygiene around the implant.
Long Term Follow-up
Peri-implant bone level can be monitored with x-ray. Prostheses attached with screws can be easily revised during occlusion changes.
Ceramic fracture or abutment problems can be addressed by repair or renovation after disassembly. The result depends on hygiene, occlusion and regular control.
All-on Full Arch Applications
Screw access of inclined implants can be corrected with the multi-unit abutment; It can be used in All-on-4 and All-on-6 protocols. Temporary screw-retained prosthesis may provide function during the healing process.
Screw hole composite closure may require regular control in the aesthetic area.
Screw torque value is applied in accordance with the manufacturer's manual. During periodic control, screw tightness and peri-implant bone level are evaluated; Early intervention can limit complications.
Screw access composite closure in the anterior region may require regular control for aesthetic reasons.
Peri-implant mucosa health is supported by regular professional cleaning and home care.
Temporary screw-retained prosthesis can support chewing function during the integration process.
The screw-attached design may offer the advantage of detachability.