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Clinical evaluation of marginal adaptation

Comparison of marginal adaptation of three-unit metal-ceramic restoration fabricated using digital impression technique and the new CAD/CAM technology in patients who are candidates for restoration: a clinical trial study

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20160213026538N8
Enrollment
33
Registered
2023-11-11
Start date
2023-11-04
Completion date
Unknown
Last updated
2023-11-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Marginal mismatch.

Interventions

Intervention 1: Intervention group: Traditional casting method. Intervention 2: Intervention group: CAD / Milling method from hard metal blocks. Intervention 3: Intervention group: CAD/Ceramill Sintro

Sponsors

Kermanshah University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
22 Years to No maximum

Inclusion criteria

Inclusion criteria: Periodontal health, plaque index and bleeding on probing (BOP) should be below 20% before prosthetic treatment. Abutment teeth require restoration. Abutment teeth Have enough periodontal support for three-unit restoration. Abutment Teeth have sufficient length of preparation. Abutment teeth have a positive long-term prognosis. The patient is willing to participate in our study and sign the consent form.

Exclusion criteria

Exclusion criteria: The patient has a systemic disease that affects clinical outcomes. The patient is unwilling or unable to maintain adequate oral hygiene. The patient has periodontitis, severe gingivitis and high caries activity. The patient has obvious signs and symptoms of bruxism or clenching. Abutment teeth require periodontal surgery before preparation. Abutment teeth have second or higher degree of mobility. Abutment teeth have clinical signs.

Design outcomes

Primary

MeasureTime frame
Marginal restoration adaptation. Timepoint: Before and after veneering. Method of measurement: 1. Parallel bitwing radiograph 2. Probe 3. Silicone replica.

Secondary

MeasureTime frame
Internal and occlusal adaptation. Timepoint: Before and after veneering. Method of measurement: 1. Parallel byte wing radiography 2. Probe 3. Silicone replica.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAmirhossein Vahedi

Kermanshah University of Medical Sciences

a.vahedi74@gmail.com+98 83 3724 8531

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026