Clinical and Radiographic Evaluation of Implants in Protective Occlusion

International Dental Contiuing Education

Status: Completed

Conditions: Implant Occlusion

Treatments: Procedure: Protective occlusion; Procedure: Maximum Intercusption

Study type: Interventional

Funder types: NETWORK

Identifiers

NCT07256379

IDCE-16112025

Details and patient eligibility

About

Occlusal overload may lead to a number of complications; biological and mechanical such as crestal bone loss, screw loosening, prosthetic fracture and even implant failure . Inadequate occlusal scheme (occlusion) causes occlusal overload increasing mechanical stresses which are transferred to the crestal bone and implant interface, leading to complications such as; Early implant failure, Early crestal bone loss, Intermediate to late implant failure, Intermediate to late implant bone loss, Screw loosening (abutment and prosthesis coping), Uncemented restoration, Component fracture, Porcelain fracture, Prosthesis fracture and Peri implant disease .Thus, a proper implant occlusal scheme plays a major role in the outcome of the implant treatment modality.

Enrollment: 28 patients

Sex: All

Ages: 18 to 50 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients who have a single posterior (1st or second molar) bounded implant with opposing natural tooth teeth.
• Adults above the age of 18.
• Good oral hygiene.
• Patient accepts to provide informed consent.

Exclusion criteria

• Smokers.
• Pregnant and lactating females.
• Medically compromised patients.
• Patients with untreated active periodontal diseases.
• Patients with parafunctional habits.

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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28 participants in 2 patient groups

Protective occlusion

Active Comparator group

Description:

According to the literature, Misch introduced the concept of implant-protective occlusion (IPO) (Misch and Bidez, 1994) based on basic prosthetic concepts, bone biomechanical principles and finite element analysis, which refers to an occlusal scheme designed for implant restoration, promoting the conditions for less biomechanical complications by reducing the stress to the implant interface and enhancing the longevity of the implant and prosthesis. It mainly entails the elimination of premature occlusal contacts or interferences.

Treatment:

Procedure: Protective occlusion

Maximum Intercuspation

Experimental group

Treatment:

Procedure: Maximum Intercusption