RecruitingNot ApplicableNCT07043998

Evaluation of Full Veneered Porcelain-Fused-to-Metal Crowns Cemented With Self-Adhesive Resin Cement Using Two Curing Modes

Evaluation of Full Veneered Porcelain-Fused-to-Metal Crowns Cemented With Self-Adhesive Resin Cement Using Two Curing Modes: A Randomized Clinical Trial

Sponsor

Cairo University

Enrollment

54 participants

Start Date

May 15, 2025

Study Type

INTERVENTIONAL

Conditions

Restoration of Posterior Tooth

Summary

P - Population/Patient Problem Adult patients requiring full coverage porcelain-fused-to-metal (PFM) crown restorations I - Intervention PFM crowns veneered with porcelain system cemented using self-adhesive resin cement in DUAL-CURED mode (light-cured for 20 seconds per surface) C - Comparison PFM crowns veneered with porcelain system cemented using self-adhesive resin cement in SELF-CURED mode (no light curing, 5 minutes self-cure) O - Outcome(s) * Primary: Retention of PFM crowns (Modified USPHS criteria) * Secondary: Marginal adaptation, recurrent caries, marginal discoloration (Modified USPHS criteria) T - Time 18-month follow-up period with evaluations at baseline, 6, 12, and 18 months

Eligibility

Min Age: 21 Years

Inclusion Criteria7

Adult patients requiring full coverage PFM crown restorations
Age ≥ 21 years
Vital or endodontically treated teeth
Sufficient tooth structure for crown retention
Willing and able to provide written informed consent
Ability to attend all follow-up appointments
Adequate oral hygiene as determined by the investigator

Exclusion Criteria9

Patients with active periodontal disease (probing depth > 4mm, bleeding on probing)
Patients with severe parafunctional habits (e.g., bruxism confirmed by clinical examination)
Poor oral hygiene (plaque index > 30%)
Pregnancy or nursing
Systemic diseases affecting treatment outcomes (e.g., uncontrolled diabetes, immunosuppression)
Known allergies to study materials (metal alloys, porcelain, or resin cement components)
Inability to comply with study requirements
Current participation in other dental clinical trials
Active orthodontic treatment

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Interventions

OTHERSelf-adhesive resin cement in SELF-CURED mode

PFM crowns veneered with porcelain system cemented using self-adhesive resin cement in SELF-CURED mode

OTHERSelf-adhesive resin cement in DUAL-CURED mode

PFM crowns veneered with porcelain system cemented using self-adhesive resin cement in DUAL-CURED mode

Locations(1)

Faculty of Dentistry Cairo University

Cairo, Egypt

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NCT07043998