Skip to content

Non-Guided vs. Guided Surgery to Immediately Loaded PrimeTaper Implants in Partially Edentulous Patients

Prospective, Multicenter, Non-randomized, Controlled Clinical Study Utilizing Non-Guided vs. Guided Surgery to Immediately Loaded PrimeTaper Implants in Partially Edentulous Patients

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05264545
Enrollment
100
Registered
2022-03-03
Start date
2022-03-22
Completion date
2026-12-01
Last updated
2026-06-24

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

Conditions

Partially Edentulous Maxilla or Mandible

Brief summary

A 510k approved dental device for subjects requiring single or multiple tooth replacement with implants where immediate restoration/loading is preferred.

Detailed description

The rationale for this study is to provide scientific data on the clinical performance and patient reported outcomes of the PrimeTaper EV implant when utilizing non-guided vs guided surgical technique. The PrimeTaper EV implant has the OsseoSpeed surface, which is especially indicated for use in soft bone applications where implants with other surface treatments may be less effective. The main interests of this study are to assess the survival and the success rates of the implants supporting maxillary or mandibular fixed single or 2-fixture restorations after 1, 2, 3, 4 and 5 years in function

Interventions

DEVICEPrimeTaper EV

The PrimeTaper EV Implant is a screw shaped dental implant with a defined surface achieved through grit blasting, followed by a process involving a treatment in diluted hydrofluoric acid. There is a conical connection between the implants and the abutments for a tight and stable connection.

Sponsors

McGuire Institute
Lead SponsorINDUSTRY
Dentsply Sirona Implants and Consumables
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Prospective, multicenter, non-randomized, controlled

Eligibility

Sex/Gender
ALL
Age
25 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Subject ≥25 years. 2. Subject has signed and dated the informed consent form prior to any study procedures. 3. History of either a healed edentulous area or single or multiple teeth requiring extraction and in need of a single or fixed bridge prosthetic restoration and where immediate restoration/loading is preferred. 4. Opposing jaw in the treatment area meets any of the following stable occlusal conditions: Complete denture Partial removable denture Fixed bridges and/or crowns Natural dentition

Exclusion criteria

Any of the following is regarded as a criterion for exclusion from the study (all criteria apply at study inclusion, but criteria numbered 1-4 also apply during the entire study period): 1. Unlikely to be able to comply with study procedures, according to the Investigator's judgment. 2. Subject is not willing to participate in the study or not able to understand the content of the study. 3. Involved in the planning and conduct of the study. 4. Unable or unwilling to return for follow-up visits for a period of 5 years. 5. Has an uncontrolled pathological process in the oral cavity (e.g. untreated periodontal disease, uncontrolled caries, severe malocclusion, etc.). 6. Known or suspected current malignancy. 7. History of radiation therapy in the head and neck region. 8. History of chemotherapy within 5 years prior to surgery. 9. Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration (e.g., uncontrolled diabetes mellitus as reported by the subject). 10. Use of systemic corticosteroids, IV bisphosphonates or any other medication that could compromise post-operative healing and/or osseointegration. 11. Current alcohol and/or drug abuse. 12. Smoking more than 10 cigarettes of any type per day. 13. Current need for major bone grafting and/or augmentation in the planned implant area (esthetic augmentation and minor facial grafting are allowed). 14. Known pregnancy, or plans to become pregnant during the study period of 5 years 15. Participation in another clinical study within the previous 6 months that may interfere with the present study. Post-surgical

Design outcomes

Primary

MeasureTime frameDescription
To evaluate implant survival rate at 1 year after final restoration attachment (screw retained when feasible) with single and multiple (fixed bridges) PrimeTaper EV implant(s) utilizing non-guided versus guided surgery1 year after final restorationNumber of remaining implants counted clinically and radiographically, i.e. 'Yes' or 'No' for each implant where 'Yes' means that the implant is still remaining and 'No' means that the implant is not remaining.

Secondary

MeasureTime frameDescription
Implant stability by manual clinical examinationthroughout study, up to the 5 year follow upMobility (manual stability) will be assessed by a percussion test for resonance indicative of bone to implant contact vertically and laterally.
Implant survival rate2, 3, 4, and 5 years after final restoration attachmentNumber of remaining implants counted clinically and radiographically, i.e. 'Yes' or 'No' for each implant where 'Yes' means that the implant is still remaining and 'No' means that the implant is not remaining.
Maintenance of marginal bone levels on patient- and implant level.throughout study up to the 5 year follow up visitChanges (mm) in marginal bone level (MBL)
Condition of the peri-implant mucosa (Plaque Index)measured at 12 days (no BOP, PPD), 16 weeks, 20 weeks, 6 months, 1,2,3,4,5 years,Plaque index will be measured following implant placement by visual inspection using a scoring system of 0-1, 0 being no plaque is present and 1 being plaque is present.
Condition of the peri-implant mucosa (Recession)measured at 12 days (no BOP, PPD), 16 weeks, 20 weeks, 6 months, 1,2,3,4,5 years,Recession will be measured following implant placement by placing a probe between the tooth and gum to record depth of recession in millimeters from the crown margin to the gingival margin rounded to the nearest 0.5 mm.
Condition of the peri-implant mucosa (Suppuration by visual inspection).measured at 12 days (no BOP, PPD), 16 weeks, 20 weeks, 6 months, 1,2,3,4,5 years,Suppuration presence or absence will be measured following implant placement by using a scoring system of 0-1. 0 being no suppuration and 1 being suppuration is present. It is being identified by visual inspection and palpitation of moderate inflammation.
Condition of the peri-implant mucosa.measured at 12 days, 20 weeks, 1,2,3,4,5 yearsKeratinized Tissue Width (KTw) will be measures following implant placement
Patient Reported Outcomes (PROs)20 weeks, 6 months, years 1,2,3,4,5subjects will be interviewed to ask about Discomfort using a 0 (no discomfort)-10 (as much discomfort as i have ever felt) point grading system
Investigator Assessment of the Implant-Prosthetic Complex20 weeks and 5 years.Evaluation of the Esthetic outcome on a 4 point scale (1=very good, 2= good, 3=acceptable, 4=not acceptable)
Implant successthroughout study up to the 5 year follow up visitProportion of implants with the derived answer 'No' on the occurrence of "pain", "mobility", "≥2 mm radiological bone loss from initial placement", "infection", "radiolucency" and "6" or greater on the Subject Satisfaction PRO Question and "Very good", "good" or "acceptable" on each Investigator Evaluation of Esthetic Outcome, Function, Gingival Health, Bone Level
Prosthetic survival5 years after final restoration attachmentProportion of original permanent prosthetic restorations still in place at the 5 years after final restoration attachment.
Prosthetic success5 years after final restoration attachment.Analysis of successful permanent prosthetic restorations (implant-prosthetic complex); Number of suprastructure fractures, technical repairs 5 years after final restoration attachment.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 25, 2026