Resin-Cement Type Influence on Cement Remnants in Implant-Supported Restorations

Vilniaus Implantologijos Centro (VIC) Klinika

Status: Completed

Conditions: Dental Cements

Treatments: Other: self-adhesive resin cement (RC); Other: resin-modified glass-ionomer cement (RMGIC)

Study type: Interventional

Funder types: Other; NETWORK

Identifiers

NCT06711237

VIC1

Details and patient eligibility

About

This study quantitatively compared cement residues of two resin cement types around implant-supported restorations (ISR) with a crown-abutment margin located at the gingival level. This prospective, single-blinded, cross-over clinical trial compared optically detectable cement remnants between Self-Adhesive Resin Cement (RC) and Resin-Modified Glass Ionomer Cement (RMGIC).

Full description

This prospective, two-arm, non-randomized, clinical trial compared detectable cement remnants on 30 patients and 60 ISR. Two cements were compared; self-adhesive resin (RC) and resin-modified glass ionomer (RMGIC). Comparisons were carried out on identical pairs of ISR tested within the same patients with a 1-week healing interval. The primary outcome variable was the ratio of cement-covered area to total crown area. Areas were analyzed ex-situ by standardized digital image analysis.

Enrollment: 30 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• physical and psychological ability to undergo implant therapy (ASA I or II)
• presence of a single mandibular molar indicated for extraction with adjacent healthy and present natural teeth or implant-supported restoration
• presence of ≥ 6 mm width and ≥ 10 mm height native bone ridge - presence of intact alveolar bone walls after tooth extraction and presence of interradicular bone > 4 mm to achieve primary implant stability
• presence of ≥ 1.5 mm distance to adjacent teeth at the bone level
• overall healthy, non-inflamed keratinized soft tissues.

Exclusion criteria

Presence of general conditions contributory to dental implant treatment comprising but not limited to:

• presence of active periodontitis 25
• poor oral hygiene as determined by the Oral Health Index (OHI)
• pregnant or lactating
• presence of uncontrolled medical systemic conditions, e.g. diabetes;
• ongoing or past medical treatments affecting wound healing, terminated less than 3 months prior to the study-related intervention

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Sequential Assignment

Masking: Single Blind

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30 participants in 2 patient groups

Self-Adhesive Resin Cement (RC)

Experimental group

Description:

Single-unit implant-supported single crowns were cemented to the abutments using a self-adhesive resin cement (RC). Residual cement was removed, and the restorations were retrieved for analysis of cement remnants.

Treatment:

Other: resin-modified glass-ionomer cement (RMGIC)

Other: self-adhesive resin cement (RC)

Resin-modified Glass-Ionomer Cement (RMGIC)

Experimental group

Description:

Single-unit implant-supported single crowns were cemented to the abutments using a resin-modified glass-ionomer cement (RMGIC). Residual cement was removed, and the restorations were retrieved for analysis of cement remnants.

Treatment:

Other: resin-modified glass-ionomer cement (RMGIC)

Other: self-adhesive resin cement (RC)