Evaluation of Full Veneered Porcelain-Fused-to-Metal Crowns Cemented With Self-Adhesive Resin Cement Using Two Curing Modes
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Self-adhesive resin cement in SELF-CURED mode, Self-adhesive resin cement in DUAL-CURED mode.
- Who it may be relevant to
- Registry conditions: Restoration of Posterior Tooth. Basic parameters: from 21 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Egypt
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Evaluation of Full Veneered Porcelain-Fused-to-Metal Crowns Cemented With Self-Adhesive Resin Cement Using Two Curing Modes: A Randomized Clinical Trial
Overview
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
Interventions
- Other Self-adhesive resin cement in SELF-CURED mode
PFM crowns veneered with porcelain system cemented using self-adhesive resin cement in SELF-CURED mode - Other Self-adhesive resin cement in DUAL-CURED mode
PFM crowns veneered with porcelain system cemented using self-adhesive resin cement in DUAL-CURED mode
Primary outcome measures
- Retention of PFM crowns [Time frame: 18 months]
Secondary outcome measures (3)
- Marginal adaptation [Time frame: 18 months]
- Recurrent caries [Time frame: 18 months]
- Marginal discoloration [Time frame: 18 months]
Eligibility criteria
Inclusion criteria
- 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 criteria
- 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
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Double blind
- Primary purpose
- Treatment
Study locations
Egypt · 1 center
- Faculty of Dentistry Cairo University — Cairo
Identifiers
NCT: NCT07043998 · 24/5/25