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Study on OsseoSpeed™ TX Narrow Implants in the Lower Jaw in a Chinese Population

This study has been completed.
Information provided by (Responsible Party):
Dentsply Sirona Implants Identifier:
First received: November 15, 2011
Last updated: August 21, 2017
Last verified: August 2017
The purpose of this study is to investigate the clinical efficacy of Osseospeed™ TX 3mm diameter implant in a Chinese population by evaluation of marginal bone level alteration, implant stability and implant survival in the posterior mandible up to 3 years after loading. Hypothesis: Early loading of the 3 mm implant is a safe and predictable procedure.

Condition Intervention
Partially Edentulous Jaw Device: OsseoSpeed™ TX

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open, Prospective, Multi-center Study to Evaluate OsseoSpeed™ TX Single Implant 3 mm Diameter in the Anterior Mandible. A 3-years Follow-up Study.

Further study details as provided by Dentsply Sirona Implants:

Primary Outcome Measures:
  • Marginal bone level alteration [ Time Frame: At 12 months after implant loading ]
    Marginal bone level will be determined from radiographs and expressed as the distance from a reference point on the implant to the most coronal bone-to-implant contact on the mesial and distal aspect of the implant. Marginal bone level expressed in millimeters at the12 months follow-up visit will be compared to values obtained at delivery of permanent restoration i.e. loading (baseline).

Secondary Outcome Measures:
  • Implant stability [ Time Frame: At implant loading (6-8 weeks after implant placement) ]
    Implant stability will be evaluated clinically/manually (recorded as stable yes/no)

  • Implant stability [ Time Frame: At 36 months after implant loading ]
    Implant stability will be evaluated clinically/manually (recorded as stable yes/no)

  • Implant survival [ Time Frame: At 36 months after implant loading ]
    Implant survival rate will be evaluated by clinically and radiographically count the number of implants remaining in function

Enrollment: 45
Study Start Date: October 2011
Study Completion Date: October 2016
Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: OsseoSpeed™ TX
OsseoSpeed™ TX narrow implants (diameter 3 mm) of lengths 11-15 mm
Device: OsseoSpeed™ TX
OsseoSpeed™ TX narrow implants (diameter 3 mm) of lengths 11-15 mm


Ages Eligible for Study:   20 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion criteria:

  1. Provision of informed consent
  2. Aged 20-75 years at enrolment
  3. History of edentulism in the study area of at least two months
  4. Presence of natural teeth, partial prosthesis and/or implants in the opposite jaw in contact with the planned crowns
  5. Deemed by the investigator to have a bone height and width suitable for 3.0 mm diameter study implant
  6. Deemed by the investigator as likely to present an initially stable implant situation

Exclusion Criteria:

  1. Unlikely to be able to comply with study procedures, as judged by the investigator
  2. Uncontrolled pathologic processes in the oral cavity
  3. Known or suspected current malignancy
  4. History of radiation therapy in the head and neck region
  5. History of chemotherapy within 5 years prior to surgery
  6. Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration, as deemed by the investigator
  7. Uncontrolled diabetes mellitus
  8. Corticosteroids or any other medication that could influence post-operative healing and/or osseointegration
  9. Smoking more than 10 cigarettes per day
  10. Present alcohol and/or drug abuse
  11. Involvement in the planning and conduct of the study (applies to both Astra Tech staff and staff at the study site)
  12. Previous enrollment in the present study
  13. Simultaneous participation in another clinical study, or participation in a clinical study during the last weeks prior to enrollment
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01473355

School of Stomatology, JiLin University, Hospital of Stomatology
ChangChun City, China
Sichuan University
Chengdu, China, 610041
The First Affiliated Hospital, College of Medicine, Zhejiang University
Hangzhou, China, 310003
Sponsors and Collaborators
Dentsply Sirona Implants
Principal Investigator: Ping Gong, Prof Sichuan University
  More Information

Responsible Party: Dentsply Sirona Implants Identifier: NCT01473355     History of Changes
Other Study ID Numbers: CHN-0003
Study First Received: November 15, 2011
Last Updated: August 21, 2017

Additional relevant MeSH terms:
Jaw, Edentulous
Jaw Diseases
Musculoskeletal Diseases
Stomatognathic Diseases
Mouth, Edentulous
Mouth Diseases
Tooth Diseases processed this record on September 21, 2017