Clinical study on digital implant restoration of posterior single tooth with file segmentation technology

Crown accuracy and time efficiency in posterior single implant treatment using digital impression and split-file workflow: a randomized controlled trial

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000033306

Enrollment

Unknown

Registered

2020-05-27

Start date

2020-06-01

Completion date

Unknown

Last updated

2020-06-01

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

Conditions

Partial edentulous

Interventions

experimental group 1:digital impression and split-file workflow

Control group:Tranditonal prosthetic treatment

experimental group 2:Digital impression and LS2 crown

Eligibility

Sex/Gender

All

Age

22 Years to 56 Years

Inclusion criteria

Inclusion criteria: Aged >= 18 years.Missing single posterior premolar or first molar for at least 3 months. 1. The patient is over 18 years old. 2. The loss of posterior single tooth was more than 3 months. 3. The alveolar bone mass in the missing teeth area is sufficient (vertical bone mass >= 10 mm, buccolingual bone mass >= 6 mm). 4. The repair gap is normal (vertical distance >= 5mm, buccal lingual width >= 6mm).

Exclusion criteria

Exclusion criteria: 1. The patient has general or local conditions that are not suitable for implant therapy. 2. The adjacent teeth and the opposite teeth have degree II or degree III looseness.

Design outcomes

Primary

Measure	Time frame
crown modification;Chair-side time;	—

Countries

China

Contacts

Public ContactRen Shuxin

Department of Implant, Stomatological Hospital of Peking University

shuxin.ren@hotmail.com+86 13810759391

Outcome results

None listed

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