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Influence of preoperative impression technique on the accuracy and clinical outcomes of guided implant surgery: a randomized controlled trial.

Influence of preoperative impression technique on the accuracy and clinical outcomes of guided implant surgery: a randomized controlled trial.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1900022565
Enrollment
Unknown
Registered
2019-04-16
Start date
2019-05-01
Completion date
Unknown
Last updated
2020-04-13

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

Conditions

Partially edentulous

Interventions

1:digital impression
2:conventional impression

Sponsors

Hospital of Stomatology, Sun Yat-Sen University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Single tooth loss or 2 consecutive teeth loss; (2) No need for bone augmentation (more than 6mm in buccolingual direction and 8mm in occlusogingival direction); (3) At least 4 immobile teeth in the dentition; (4) Planned implant sites healing for at least 3 months; (5) Mouth opening larger than 5 cm.

Exclusion criteria

Exclusion criteria: (1) Bad oral hygiene; (2) Bruxism; (3) Uncontrolled oral disease, such as periodontitis(PD > 5mm); (4) History of radiotherapy in the head/neck region; (5) Systemic diseases influencing healing and osseointegration; (6) Untreated diabetes; (7) Medication influencing healing and osseointegration; (8) Heavy smoking( >= 20 cigarettes daily); (9) Pregnancy; (10) Patients unwilling to participate in the study.

Design outcomes

Primary

MeasureTime frame
deviation between the planned and actual position of the implant;

Secondary

MeasureTime frame
postoperative reation;clinical outcome;

Countries

China

Contacts

Public ContactZhuofan Chen

Hospital of Stomatology, Sun Yat-Sen University

chzhuof@mail.sysu.edu.cn+86 13902241868

Outcome results

None listed

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