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Clinical Performance of Nobel N1 System

Effects of Early Loading Protocol on the Survival of the Nobel N1 Implant System: A Pilot Randomized Controlled Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07280260
Enrollment
50
Registered
2025-12-12
Start date
2025-12-15
Completion date
2028-01-30
Last updated
2026-08-27

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

Conditions

Dental Implant, Tooth Loss

Keywords

Tooth loss, Edentulous, Dental implants

Brief summary

The purpose of the study is to evaluate whether N1 dental implants are successful when a final crown is placed on them at 6 weeks from implant placement surgery.

Detailed description

This study aims to evaluate the survival and stability of the Nobel N1 dental implant and its accompanying crown over a one-year period when the crown is placed either 6 or 12 weeks after implant placement. The Nobel N1 implant is an FDA-approved, newly designed implant featuring an innovative surgical placement protocol intended to minimize bone trauma, promote faster integration, and potentially allow for the placement of final crowns earlier-at 6 weeks instead of the traditional 4 to 5 months. This study will enroll adult participants who are missing a single tooth in the back of the mouth.

Interventions

DEVICENobel N1 implant

A Nobel N1 implant will be placed and restored with a On 1 base

Sponsors

Louisiana State University Health Sciences Center in New Orleans
Lead SponsorOTHER
Envista (Nobel Biocare)
CollaboratorUNKNOWN

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Intervention model description

The study is a two-arm, randomized prospective clinical trial. The randomization of the patients will be done after implant has been placed and if sufficient torque was obtained as outlined previously. At this point, using a computer generated table of random numbers, patients will be randomized into early loading and delayed loading group. Since it is not possible to predict ahead of time what the final torque will be at implant placement, a third group will comprise patients that receive implants that have lower torque that cannot be randomized. These patients will follow traditional one stage or two stage protocol for implant placement and delayed protocol. Irrespective of randomization and torque status and implant placement, all patients will be followed up as part of the study and analyzed based on the group to which they belong.

Eligibility

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

Inclusion criteria

* Males and females, age 18 or older * Can provide an Informed Consent in English. * Absence of a single posterior tooth in mandible or maxilla with presence of natural neighboring teeth (except for second molar which only requires presence of first molar) * Presence of antagonist teeth * Possibility and will for an immediate restoration. * Systemic health recorded as an American Society of Anesthesiologists (ASA) I or II

Exclusion criteria

* · Unavailability to attend the follow-up visits. * A systemic contraindication for oral surgical procedures; ASA III or IV. * Pregnancy or nursing on screening or before the surgical procedure. * Diseases that could alter healing or bone metabolism (uncontrolled diabetes, diagnostic osteoporosis, etc.), * Taking medications that are altering healing or bone metabolism (bisphosphonates, long-time corticosteroids intake, RANK inhibitors, etc.) * Alcohol or drug abuse. * Current heavy smoking behavior (≥10 cigarettes/day). * Radiation therapy to the head or neck region. * Pathology in the implant planned sites that prevent implant placement. * Current diagnosis of Diabetes, which is uncontrolled (\>7 HbA1C). * Need for sinus lift or vertical bone augmentation * Previously failed implant site

Design outcomes

Primary

MeasureTime frameDescription
Implant survival6 months, 1 yearImplant survival will be measured if it is not failed and still present at time points
Misch implant success criteria6 months, 1 yearImplant success will be measured according to Misch et al.

Secondary

MeasureTime frameDescription
Marginal bone loss6 months, 1 yearMarginal bone loss from the platform of the implant will be measured on Peri-apical X-rays and bitewings
Probing depth6 months, 1 yearProbing depths will be measured at 6 surfaces
Presence of sulcular suppuration on gentle probing6 months, 1 yearPresence or absence of suppuration will be evaluated upon gentle probing at 6 surfaces around the implant
Presence of sulcular bleeding on gentle probing6 months, 1 yearPresence or absence of bleeding will be evaluated upon gentle probing at 6 surfaces around the implant
Peri-implant Mucosal Tissue IndexProsthetic delivery, 6 months, 1 year
Patient satisfaction questionnaireProsthetic delivery, 6 months, 1 year
Prosthetic complications6 months, 1 year

Countries

United States

Contacts

CONTACTAmir Nejat
anejat@lsuhsc.edu504-981-8283
CONTACTJeanne St Germain
jstge1@lsuhsc.edu504-941-8276

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 28, 2026