ClinicalTrials.gg
Enrolling by invitationNCT07801339Updated Sep 3, 2026

Clinical Evaluation of Immediate Dental Implants in Very Elderly Patients.

An observational study in Tooth Loss / Rehabilitation, sponsored by Takane Dental Clinic. Enrolling by invitation at 1 site in Japan. Open to participants aged 80 Years and older. Per ClinicalTrials.gov, last updated 2026-09-03.

Sponsored by Takane Dental Clinic · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
15
Ages
80 Years and older
Sex
All
01

Study summary

Background: In recent years, dental implants have become a popular and effective option for replacing missing teeth, even in older adults. However, there is still limited research on implant treatments in patients aged 80 and older.

Study Details: In this study, we evaluated an 80+ year-old patient who requested dental implants after tooth extraction. The treatment involved placing an implant immediately after tooth removal, combined with bone grafting materials (Bio-Oss®) and cell-based regenerative therapy (Class III regenerative medicine). The patient continues to attend routine follow-up visits.

Goal: Because dental implants can greatly improve quality of life for elderly individuals, the goal of this study is to clinically evaluate the safety and effectiveness of implant therapy combined with regenerative medicine in patients aged 80 and older.

02

Conditions studied

  • Tooth Loss / Rehabilitation

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03

In context

Tooth Loss

165 studies on the registry are indexed under Tooth Loss; 44 are open to participants now.

This study's planned enrollment of 15 is below the median of 80 across 40 observational studies indexed under Tooth Loss.

Browse Tooth Loss studies →

Lead sponsor

This is the only study on the registry with Takane Dental Clinic as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
80 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

Patients aged 80 years or older who visited the clinic/hospital requiring tooth extraction and requested dental implant therapy to restore missing teeth, and who consented to receive treatment combining Class III regenerative medicine and bone grafting materials.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients aged 80 years or older requiring dental implant therapy following tooth extraction.
  • Patients who desire dental implant treatment and provided written .
  • Patients with sufficient systemic health to undergo minor oral surgical procedures.
  • Patients willing and able to comply with scheduled follow-up visits and maintenance programs.

Exclusion criteria

Exclusion Criteria:

  • Uncontrolled systemic diseases (e.g., uncontrolled diabetes mellitus, severe cardiovascular disease) that contraindicate oral surgery.
  • History of radiation therapy to the head and neck region.
  • Current or past use of intravenous bisphosphonates or other medications associated with osteonecrosis of the jaw.
  • Severe active periodontal disease in the remaining dentition.
  • Heavy smokers or individuals with severe parafunctional habits (e.g., severe bruxism) that may jeopardize implant integration.
  • Patients unable to attend regular follow-up appointments.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
15 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Implant Survival Rate

    Percentage of implants that remain functional, stable, and pain-free without major complications.

    Time frame: 2 year post-implantation

07

Study locations

1 site
  • Takane Dental Clinic
    Gotemba, Shizuoka 4120018, Japan
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 3, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07801339
Lead sponsor
Takane Dental Clinic
Responsible party
Sponsor
First posted
Sep 3, 2026
Start date
Jul 10, 2025
Primary completion
Jan 10, 2027 (estimated)
Completion
Jan 2030 (estimated)
Last update
Sep 3, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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No contact was published for this record. The registry link below has the sponsor’s details.

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