Influence of Composite Placement Techniques on the Clinical Performance of Posterior Restorations in Vital Teeth

Tanta University

Status: Completed

Conditions: Composite Resins; Posterior Teeth

Treatments: Other: nanohybrid composite resin

Study type: Interventional

Funder types: Other

Identifiers

NCT07415317

Composite Placement Techniques

Details and patient eligibility

About

The purpose of this 12-month randomized clinical investigation was to compare the clinical performance of posterior composite resin restorations implanted in vital teeth using various placement techniques.

Full description

Because of their conservative nature, aesthetic qualities, and consistently improved mechanical performance and handling features, resin-based composites have become the restorative material of choice for posterior teeth. Nevertheless, significant obstacles influencing the stability of the marginal area, sensitivity following the procedure, and the durability and effectiveness of composite restorations in the long run are polymerization shrinkage and stress associated with shrinkage.

To reduce polymerization stress and maximize adaptability to hollow walls, various placement procedures have been suggested. While older incremental layering methods sought to lessen the configuration factor (C-factor) and increase light penetration, more recent methods like the Stamp and Snowplow approaches sought to replicate the occlusal architecture and enhance marginal sealing. Conversely, bulk-fill techniques were first developed to streamline clinical processes by enabling the use of bigger composite layers with the promise of lower shrinkage stress.

Despite a plethora of in vitro studies, there is a dearth of high-quality clinical data that compares these placement methods under controlled settings. Due to the fact that laboratory studies cannot completely replicate the oral environment, clinical trials continue to be the best way to assess the real-world efficacy of restorative procedures.

Consequently, this randomized clinical trial set out to assess the clinical efficacy of posterior composite restorations placed in vital teeth utilizing four distinct procedures over the course of a year

Enrollment: 50 patients

Sex: All

Ages: 20 to 35 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Good general and oral health
• Vital posterior teeth with primary occlusal caries
• Class I cavities with depth ranging from 3 to 4 mm

Exclusion criteria

• Non-vital or restored teeth
• Parafunctional habits (e.g., bruxism)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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50 participants in 4 patient groups

incremental nanohybrid composite

Experimental group

Description:

Stamp technique

Treatment:

Other: nanohybrid composite resin

Flowable and nanohybrid composite

Experimental group

Description:

Snowplow technique

Treatment:

Other: nanohybrid composite resin

incremental layering technique

Experimental group

Description:

Modified incremental "Pizza" technique

Treatment:

Other: nanohybrid composite resin

bulk fill composite resin

Experimental group

Description:

Bulk-fill technique

Treatment:

Other: nanohybrid composite resin