NCT04144322

Brief Summary

The purpose of this study is to evaluate the survival rate of 5 mm short implants compared to longer implants (10 mm) placed in sinus-grafted sites. Primary aim: Compare bone loss between the two groups Secondary aim: Compare surgical time and patient-reported outcomes (satisfaction and post-operative pain)

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 14, 2019

Completed
14 days until next milestone

First Submitted

Initial submission to the registry

October 28, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 30, 2019

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 22, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 22, 2024

Completed
1 year until next milestone

Results Posted

Study results publicly available

May 6, 2025

Completed
Last Updated

May 6, 2025

Status Verified

May 1, 2025

Enrollment Period

4.5 years

First QC Date

October 28, 2019

Results QC Date

April 15, 2025

Last Update Submit

May 2, 2025

Conditions

Bone Loss, Alveolar

Outcome Measures

Primary Outcomes (1)

  • Change in Mesial-distal (M-D) Bone Loss

    Comparing mesial-distal (M-D) bone loss between the two groups. This will be measured in millimeters using standardized radiographs of the implant site at the screening visit, surgical visit, 4 months post-op, 5 months post-op, 12 months post-op, and 24 months post-op visits.

    Baseline, surgical visit 1 day, 4 months, 5 months, 12 months, 24 months

Secondary Outcomes (3)

  • Survival Rate

    5 month post-op, 12 month post-op, and 24 month post-op visits

  • Number of Sites With Bleeding on Probing

    5 month post-op, 12 month post-op, and 24 month post-op visits

  • Probing Pocket Depth

    5 month post-op, 12 month post-op, and 24 month post-op visits

Study Arms (2)

Short Implant

OTHER

17 patients will receive a 5 mm short implant.

Device: Zimmer T3 Short Ex Hex With Discrete Crystalline Deposition

Long Implant

OTHER

17 patients will receive a sinus lift procedure, bone graft, and 10 mm implant.

Device: Zimmer T3 with Discrete Crystalline Deposition Ex Hex Parallel Walled implants

Interventions

Zimmer T3 Short Ex Hex With Discrete Crystalline DepositionDEVICE

Placement of a short implant

Short Implant
Zimmer T3 with Discrete Crystalline Deposition Ex Hex Parallel Walled implantsDEVICE

Placement of a long implant with sinus lift and bone graft

Long Implant

Eligibility Criteria

Age20 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 20-70 years at enrollment
  • Systemically healthy patients
  • Full-mouth plaque score and full-mouth bleeding score ≤ 30% (measured at four sites per tooth)
  • In need of one premolar or 1st molar dental implant in the maxillary area
  • Neighboring teeth to the planned implant must have natural root(s) or implant supported restoration.
  • Presence of natural tooth/teeth, partial prosthesis and/or implants in the opposite jaw in contact with the planned crown/s deemed by the investigator as likely to present an initially stable implant situation
  • Residual bone height under the maxillary sinus between 5 to 7 mm and a width of at least 7 mm, as measured on cone beam computer tomography (CBCT) scans.

You may not qualify if:

  • Unlikely to be able to comply with study procedures
  • Uncontrolled pathologic processes in the oral cavity
  • History of head and neck chemotherapy within 5 years prior to surgery
  • Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration
  • Uncontrolled diabetes mellitus HbA1c \>8
  • Taking corticosteroids, IV bisphosphonates, or any other medication that could influence post-operative healing and/or osseointegration
  • Smokes more than 10 cigarettes/day
  • Bruxer
  • Present alcohol and/or drug abuser
  • Pregnant, unsure pregnancy status, or lactating females (self-reported)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Michigan School of Dentistry

Ann Arbor, Michigan, 48109, United States

Location

Related Publications (13)

  • Anitua E, Alkhraist MH, Pinas L, Begona L, Orive G. Implant survival and crestal bone loss around extra-short implants supporting a fixed denture: the effect of crown height space, crown-to-implant ratio, and offset placement of the prosthesis. Int J Oral Maxillofac Implants. 2014 May-Jun;29(3):682-9. doi: 10.11607/jomi.3404.

    PMID: 24818208BACKGROUND

  • Anitua E, Pinas L, Orive G. Retrospective study of short and extra-short implants placed in posterior regions: influence of crown-to-implant ratio on marginal bone loss. Clin Implant Dent Relat Res. 2015 Feb;17(1):102-10. doi: 10.1111/cid.12073. Epub 2013 May 8.

    PMID: 23656303BACKGROUND

  • Buser D, Janner SF, Wittneben JG, Bragger U, Ramseier CA, Salvi GE. 10-year survival and success rates of 511 titanium implants with a sandblasted and acid-etched surface: a retrospective study in 303 partially edentulous patients. Clin Implant Dent Relat Res. 2012 Dec;14(6):839-51. doi: 10.1111/j.1708-8208.2012.00456.x.

    PMID: 22897683BACKGROUND

  • Sargozaie N, Moeintaghavi A, Shojaie H. Comparing the Quality of Life of Patients Requesting Dental Implants Before and After Implant. Open Dent J. 2017 Aug 31;11:485-491. doi: 10.2174/1874210601711010485. eCollection 2017.

    PMID: 29114333BACKGROUND

  • Pieri F, Forlivesi C, Caselli E, Corinaldesi G. Short implants (6mm) vs. vertical bone augmentation and standard-length implants (>/=9mm) in atrophic posterior mandibles: a 5-year retrospective study. Int J Oral Maxillofac Surg. 2017 Dec;46(12):1607-1614. doi: 10.1016/j.ijom.2017.07.005. Epub 2017 Jul 24.

    PMID: 28751181BACKGROUND

  • Lemos CA, Ferro-Alves ML, Okamoto R, Mendonca MR, Pellizzer EP. Short dental implants versus standard dental implants placed in the posterior jaws: A systematic review and meta-analysis. J Dent. 2016 Apr;47:8-17. doi: 10.1016/j.jdent.2016.01.005. Epub 2016 Jan 19.

    PMID: 26804969BACKGROUND

  • Garaicoa-Pazmino C, Suarez-Lopez del Amo F, Monje A, Catena A, Ortega-Oller I, Galindo-Moreno P, Wang HL. Influence of crown/implant ratio on marginal bone loss: a systematic review. J Periodontol. 2014 Sep;85(9):1214-21. doi: 10.1902/jop.2014.130615. Epub 2014 Jan 20.

    PMID: 24444399BACKGROUND

  • Fan T, Li Y, Deng WW, Wu T, Zhang W. Short Implants (5 to 8 mm) Versus Longer Implants (>8 mm) with Sinus Lifting in Atrophic Posterior Maxilla: A Meta-Analysis of RCTs. Clin Implant Dent Relat Res. 2017 Feb;19(1):207-215. doi: 10.1111/cid.12432. Epub 2016 Jun 13.

    PMID: 27295262BACKGROUND

  • Chappuis V, Araujo MG, Buser D. Clinical relevance of dimensional bone and soft tissue alterations post-extraction in esthetic sites. Periodontol 2000. 2017 Feb;73(1):73-83. doi: 10.1111/prd.12167.

    PMID: 28000281BACKGROUND

  • Schneider CA, Rasband WS, Eliceiri KW. NIH Image to ImageJ: 25 years of image analysis. Nat Methods. 2012 Jul;9(7):671-5. doi: 10.1038/nmeth.2089.

    PMID: 22930834BACKGROUND

  • Strietzel FP, Reichart PA. Oral rehabilitation using Camlog screw-cylinder implants with a particle-blasted and acid-etched microstructured surface. Results from a prospective study with special consideration of short implants. Clin Oral Implants Res. 2007 Oct;18(5):591-600. doi: 10.1111/j.1600-0501.2007.01375.x. Epub 2007 Jun 21.

    PMID: 17590161BACKGROUND

  • Telleman G, Raghoebar GM, Vissink A, Meijer HJ. Impact of platform switching on peri-implant bone remodeling around short implants in the posterior region, 1-year results from a split-mouth clinical trial. Clin Implant Dent Relat Res. 2014 Feb;16(1):70-80. doi: 10.1111/j.1708-8208.2012.00461.x. Epub 2012 May 11.

    PMID: 22577959BACKGROUND

  • Thoma DS, Haas R, Sporniak-Tutak K, Garcia A, Taylor TD, Hammerle CHF. Randomized controlled multicentre study comparing short dental implants (6 mm) versus longer dental implants (11-15 mm) in combination with sinus floor elevation procedures: 5-Year data. J Clin Periodontol. 2018 Dec;45(12):1465-1474. doi: 10.1111/jcpe.13025. Epub 2018 Nov 25.

    PMID: 30341961BACKGROUND

MeSH Terms

Conditions

Alveolar Bone Loss

Condition Hierarchy (Ancestors)

Bone ResorptionBone DiseasesMusculoskeletal DiseasesPeriodontal AtrophyPeriodontal DiseasesMouth DiseasesStomatognathic Diseases

Results Point of Contact

Title
Dr. Tae-Ju Oh
Organization
University of Michigan
taejuoh@umich.edu
7346473320

Study Officials

  • Tae-Ju Oh

    University of Michigan

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Professor of Dentistry

Study Record Dates

First Submitted

October 28, 2019

First Posted

October 30, 2019

Study Start

October 14, 2019

Primary Completion

April 22, 2024

Study Completion

April 22, 2024

Last Updated

May 6, 2025

Results First Posted

May 6, 2025

Record last verified: 2025-05

Locations

US(1)