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Comparison of clinical effects of all ceramic single crown for posterior teeth made by intra-oral digital models or stone cast

Comparison of clinical effects of all ceramic single crown for posterior teeth made by intra-oral digital models or stone cast

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1800016055
Enrollment
Unknown
Registered
2018-05-08
Start date
2018-04-30
Completion date
Unknown
Last updated
2018-05-14

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

Conditions

Tooth defect

Interventions

experimental group:Intraoral digital impression
control group:stone cast impression

Sponsors

Beijing Stomatological Hospital,Capital Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Aged from 18 to 65 years; 2. Select digital all porcelain prosthesis; 3. Need a single crown (include post core crown) after restoration of the root canal; 4. Can revisit on time.

Exclusion criteria

Exclusion criteria: 1. Severe periodontal disease (loose II degrees and above, BI index=3); 2. Bruxism; 3. Short clinical crown (less than 4mm); 4. Incomplete root canal therapy; 5. Deficiency of adjacent teeth or opposite teeth.

Design outcomes

Primary

MeasureTime frame
maginal fit;—

Secondary

MeasureTime frame
placement time;the time of selected grinding;clinical evaluation;BI index;survival rate;—

Countries

China

Contacts

Public ContactDongxiang Zheng

Beijing Stomatological Hospital, Capital Medical University

dxdq@sina.com+86 010-57099310

Outcome results

None listed

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