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Clinical Trials/NCT02178891
NCT02178891UnknownNot Applicable

A 5-year Clinical Evaluation on Brånemark System® RP Ø4.5x4.5 mm Implants

Nobel Biocare2 sites in 1 country144 target enrollmentStarted: January 1, 2010Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Sponsor
Enrollment
144
Locations
2
Primary Endpoint
marginal bone level changes

Study Overview

Brief Summary

An extra short, 2-piece implant with a Brånemark hexagon interface was developed with a bone anchoring length of only 4.5 mm, for subjects with severely resorbed jaws.

Study Design

Study Type
Interventional
Allocation
Na
Intervention Model
Single Group
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • •The subject should be at least 18 years of age and have passed secession of growth
  • •The subject should be in need of an implant-supported restoration in the posterior region of the mouth (maxilla: first premolar to third molar, mandible: first premolar to second molar, not third molar due to mobile gingiva), where at least 2 implants are needed of which at least one should be an Extra Short Implant
  • •Obtained informed consent from the subject
  • •The subject must be in such a physical and mental condition that a 5-year follow-up period can be carried out without foreseeable problems
  • •The subject should have a severely resorbed posterior mandible and/ or maxilla.
  • •Implants are only to be placed in healed sites, defined as a site with minimum 6 months of healing following tooth extraction
  • •At least 6 mm residual bone width, between 4-7 mm residual bone height in the maxilla and between 6-9 mm residual bone height in the mandible
  • •At implant installation the implant should be stable; final tightening torque of the implant about 25 Ncm or higher, preferably not exceeding 45 Ncm
  • •The subject should be healthy and compliant with good oral hygiene
  • •Favorable and stable occlusal relationship

Exclusion Criteria

  • •The subject is not able to give her/his informed consent of participating
  • •Health conditions, which do not permit the surgical treatment
  • •Reason to believe that the treatment might have a negative effect on the subject's total situation (psychiatric problems), as noted in subject records or in subject history
  • •Any disorders in the planned implant area such as previous tumours, chronic bone disease or previous irradiation
  • •Alcohol or drug abuse as noted in subject records or in subject history.
  • •Heavy smoking (>10 cigarettes/day)
  • •Intake of medication containing bisphosphonates
  • •Uncontrolled diabetes, i.e. a subject with diagnosed diabetes that has a history of neglecting doctor's recommendations regarding treatment, food and alcohol intake
  • •Severe bruxism or other destructive habits
  • •Immediate insertion (i.e. placement of the implant immediately after extraction)
  • •Bone augmentation procedures before or at implant installation is not allowed
  • •Deviation from stated drilling protocol, utilizing osteotomes, is not allowed
  • •Lack of opposing dentition
  • •Single crown restorations are not to be performed in the study

Arms & Interventions

short implants

Other

Intervention: extra short implant (Device)

Outcomes

Primary Outcomes

marginal bone level changes

Time Frame: yearly, up to 5 years

Secondary Outcomes

  • cumulative survival and success rates(yearly, up to 5 years)

Investigators

Sponsor
Nobel Biocare
Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (2)

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