Comparing immediate and delayed loading of maxillary overdenture implants

Immediate Versus Delayed Loading of Maxillary Overdenture Implants

NA · Case Western Reserve University · NCT06038487

This study is testing whether putting in maxillary overdenture implants right away or waiting three months affects bone loss and other outcomes for patients over three years.

Quick facts

PhaseNA
Study typeInterventional
Enrollment18 (estimated)
Ages21 Years and up
SexAll
SponsorCase Western Reserve University (other)
Drugs / interventionschemotherapy, radiation
Locations1 site (Cleveland, Ohio)
Trial IDNCT06038487 on ClinicalTrials.gov

What this trial studies

This study evaluates the outcomes of maxillary overdentures supported by implants that are either immediately loaded or loaded after a delay of three months. It focuses on measuring radiographic bone loss over a period of 36 months, with assessments at 6, 12, 24, and 36 months post-loading. Secondary objectives include examining the condition of the peri-implant mucosa, implant survival rates, and patient-centered outcomes. Participants will undergo a thorough evaluation to ensure they meet the inclusion criteria before being assigned to one of the two loading approaches.

Who should consider this trial

Good fit: Ideal candidates are fully edentulous individuals aged 21 and older with adequate bone for implant placement.

Not a fit: Patients with chronic conditions requiring antibiotics, prolonged steroid use, or those with bleeding disorders may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into the optimal timing for loading implants, potentially improving patient outcomes and satisfaction.

How similar studies have performed: Previous studies have shown varying success with immediate versus delayed loading of implants, but this specific approach is being evaluated for its unique outcomes.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Males and females must be at least ≥ 21 years of age
2. Fully edentulous maxilla
3. The implant site has to be healed for at least 4 months after extraction
4. Wearing complete dentures deemed adequate
5. Orthopantomogram available (OPT)
6. Adequate amount of bone at least at the 2nd premolar position to house at minimum a 3.5 x 10 mm BLX-Roxolid implant
7. No bone grafting required
8. Implant IT ≥ 20 N/cm

Exclusion Criteria:

1. Conditions requiring chronic routine prophylactic use of antibiotics
2. Conditions requiring prolonged use of steroids
3. History of leukocyte dysfunction and deficiencies
4. Bleeding disorders
5. History of neoplastic disease requiring use of radiation or chemotherapy
6. Metabolic bone disorders
7. Uncontrolled endocrine disorder
8. Use of any investigational drug or device within the 30-day period prior to implant surgery
9. Vaping, Tobacco Chewing or Smoking more than 10 cigarettes a day
10. Alcoholism or drug abuse
11. Patient infected with HIV
12. Condition or circumstances, in the opinion of the investigator, which would prevent completion of study participation or interfere with analysis of study results, such as as history of non-compliance, unreliability.
13. Local inflammation including untreated periodontitis
14. Mucosal disease such as erosive lichen planus
15. History of local irradiation therapy
16. Osseous lesion
17. Severe bruxism and clenching habits
18. Active infection with suppuration or fistula track
19. Persistent intraoral infection
20. Lack of primary stability \<20Ncm. In this instance, the patient must be withdrawn and treated according to the standard protocol.
21. Inadequate oral hygiene or unmotivated home care.
22. Bone grafting needed
23. Inadequate bone volume for implants insertion as measured on the pre-treatment cone beam computed tomography (CBCT).

Where this trial is running

Cleveland, Ohio

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Implant Complication, Implant Overdenture, Immediate loading, Delayed loading, Maxillary Overdenture, Novaloc Retention System, Guided Implants, Immediate vs Delayed loading

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.