Four-unit Implant Supported Fixed Partial Dentures Fabricated From Different Materials

Menoufia University

Status: Enrolling

Conditions: Bone Loss; Prosthesis Survival

Treatments: Other: Prosthesis superstructure

Study type: Observational

Funder types: Other

Identifiers

NCT06422260

ADMNF-0030324

Details and patient eligibility

About

Implant supported superstructure is necessary for long term success and durability of the implant itself in terms of stresses distribution and fracture strength capability. Stresses falling on an implant are too much greater than those applied on a tooth structure with a periodontal ligament offering a degree of elasticity. The important mechanical and physical properties of materials used for the fabrication of dental prostheses include adequate flexural and tensile strength and modulus of elasticity, maximum fracture resistance, optimal bond strength and adequate polishability.

Full description

One objective of implant dentistry is to provide excellent esthetics and soft-tissue profiles in the esthetic zone. Esthetic requirements have focused primarily on the position, inclination, shape, and color of the restoration. However, the peri-implant soft tissue also plays a major role in the esthetics of an implant-supported restoration especially in the anterior region.

Enrollment: 60 estimated patients

Sex: All

Ages: 30 to 50 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• No systemic diseases that might alter the tissue response to implantation.
• Mobility grade 3 at the site of the 4 lateral incisors.
• sufficient available inter-arch space
• normal maxillomandibular relation.
• no temporomandibular joint

Exclusion criteria

• Grade 1 or 2 mobility at the incisor's region.
• Patients with systematic diseases that contraindicate implant placement.

Trial design

60 participants in 3 patient groups

Porcelin fused to metal (PFM) group

Description:

Evaluation of biological response and clinical performance of the fixed partial denture anterior bridge constructed from PFM

Treatment:

Other: Prosthesis superstructure

Zirconia group

Description:

Evaluation of biological response and clinical performance of the fixed partial denture anterior bridge constructed from ceramics

Treatment:

Other: Prosthesis superstructure

Polyetheretherketone (PEEK) group

Description:

Evaluation of biological response and clinical performance of the fixed partial denture anterior bridge constructed from PEEK

Treatment:

Other: Prosthesis superstructure