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Using 3.3mm Screw Tap and Cutting Resistance to Evaluate Bone Quality Around Dental Implant

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ClinicalTrials.gov Identifier: NCT00172718
Recruitment Status : Unknown
Verified February 2005 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
First Posted : September 15, 2005
Last Update Posted : June 6, 2008
Sponsor:
Information provided by:
National Taiwan University Hospital

September 12, 2005
September 15, 2005
June 6, 2008
March 2005
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Complete list of historical versions of study NCT00172718 on ClinicalTrials.gov Archive Site
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Using 3.3mm Screw Tap and Cutting Resistance to Evaluate Bone Quality Around Dental Implant
Using 3.3mm Screw Tap to Modify the Standard Implantation Procedure and to Measure the Cutting Resistance for Establishing a More Objective Method to Evaluate the Peri-Implant Bone Quality
Osseointegrated root form implants have been applied successfully in treating fully and partially edentulous patients and patients with single tooth missing. However, the success rate of osseointegrated dental implants was not as good in patients with poor bone quality. The reasons are believed that poor bone quality reduces the initial stability of dental implants and then reduces the success rate. For increasing initial stability of dental implants, some technical modifications are suggested in literature. However, due to lack of an objective method to evaluate bone quality, they are controversial. The purposes of this clinical study are to develop a standard procedure which using cutting resistance measured by Osseocare in surgery to evaluate the bone quality and to compare with the clinical experiences of oral surgeons. The objective outcome, initial stability of dental implant, is measured with Osstell. The analyzed results are also helpful for less experienced surgeons.

Materials & Methods:

1. Patient eligibility: Six implant surgeons will assist the experiment. The subjects are patient who will receive dental implant treatment in Dental department of NTUH. Sixty subjects are offered by six surgeons. They must fully fill the requirements as following

Observational
Time Perspective: Prospective
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  • Jaw, Edentulous, Partially
  • Mouth, Edentulous
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Unknown status
60
Same as current
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Inclusion Criteria:

  • No major systemic diseases
  • Mouth opening: > 35 mm
  • Missing teeth at anterior or premolar area and willing to restored by implantation

Exclusion Criteria:

  • Uncomfortable or other condition occurring in the surgical procedure make the measuring unacceptable
Sexes Eligible for Study: All
30 Years to 60 Years   (Adult)
Yes
Contact information is only displayed when the study is recruiting subjects
Taiwan
 
 
NCT00172718
9361701264
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National Taiwan University Hospital
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Principal Investigator: Tong-Mei Wang, DDS, MS National Taiwan University, School of Dentistry
Study Director: Li-Deh Lin, DDS, PhD National Taiwan University, School of Dentistry
National Taiwan University Hospital
February 2005