NCT04328051

Brief Summary

This study consists in a double-blinded randomized controlled trial which objective is to assess the effect of the implant-abutment connection type -external hexagon, internal hexagon and conical connection- in the periimplant marginal bone loss in vertical side and the bacterial leakage 12 months after prosthesis placement.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
105

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

June 13, 2018

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

June 21, 2018

Completed
1.8 years until next milestone

First Posted

Study publicly available on registry

March 31, 2020

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 13, 2021

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 13, 2021

Completed
Last Updated

March 31, 2020

Status Verified

March 1, 2020

Enrollment Period

3 years

First QC Date

June 21, 2018

Last Update Submit

March 27, 2020

Conditions

Keywords

Dental ImplantInternal ConnectionExternal ConnectionConical ConnectionMarginal Bone LossImplant Prosthetic ConnectionBacterial Leakage

Outcome Measures

Primary Outcomes (1)

  • Change in Vertical Marginal Bone Loss (VMBL)

    Distance in millimetres between the implant platform and the point of the intra-bone defect that is more apical.

    Since implant placement (Timing 0) through study completion (Timing 5), an average of 1 year.

Secondary Outcomes (12)

  • Vertical Marginal Bone Loss Tax

    12 months after prosthesis placement.

  • Early implant failure

    Since implant placement (Timing 0) through prosthesis placement (Timing 1).

  • Late implant failure

    Since prosthesis placement (Timing 1) through study completion (Timing 5), an average of 1 year.

  • Probing pocket depth

    Since prosthesis placement (Timing 1) through study completion (Timing 5), an average of 1 year.

  • Mucosal recession

    Since prosthesis placement (Timing 1) through study completion (Timing 5), an average of 1 year.

  • +7 more secondary outcomes

Study Arms (3)

Ocean E.C.®, Avinent Implant System S.L.

ACTIVE COMPARATOR

Dental implant with geometry adapted to the biologic architecture of the bone, with platform switching with a positive angle and machined surface with micro-threads in the cervical region. Asymmetric and progressive threads in its body with a double thread pitch. Point-ratio geometry on its apical region, Biomimetic Advanced Surface and external hexagon connection.

Other: Dental Implant Placement

Ocean I.C.®, Avinent Implant System S.L.

ACTIVE COMPARATOR

Dental implant with geometry adapted to the biologic architecture of the bone, with platform switching with a positive angle and machined surface with micro-threads in the cervical region. Asymmetric and progressive threads in its body with a double thread pitch. Point-ratio geometry on its apical region, Biomimetic Advanced Surface and internal hexagon connection.

Other: Dental Implant Placement

Ocean C.C.®, Avinent Implant System S.L.

ACTIVE COMPARATOR

Dental implant with geometry adapted to the biologic architecture of the bone, with platform switching with a positive angle and machined surface with micro-threads in the cervical region. Asymmetric and progressive threads in its body with a double thread pitch. Point-ratio geometry on its apical region, Biomimetic Advanced Surface and conical connection.

Other: Dental Implant Placement

Interventions

Antibiotic prophylaxis will be done. After rinsing with 0.12 % chlorhexidine, patients will receive local anaesthesia. A crestal incision will be done and a mucoperiostic flap will be raised. As the commercial specifies, progressive diameter drills will be used under constant sterile saline irrigation to prepare the implant site. Once finished the drilling sequence, one investigator will open the opaque envelope to know which type of implant, depending on the connection, has to be placed by the surgeon. Dental implant will be placed crestally and depending if it has primary stability or not, it will be leaded submerged or non-submerged. The flap will be repositioned and sutured without tension with 4/0 polyamide. Postoperative instructions and medication will be prescribed and explained.

Also known as: Surgery
Ocean C.C.®, Avinent Implant System S.L.Ocean E.C.®, Avinent Implant System S.L.Ocean I.C.®, Avinent Implant System S.L.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subjects who accept signing voluntarily the informed consent before doing any action related to the study.
  • ≥18-years-old patients.
  • Edentulous single spaces or edentulous posterior maxilla or mandible (from the first premolar to the second molar) with screw-retained single fixed crowns.
  • Single implants successfully osseointegrated placed at least 16 weeks post-extraction.
  • O'Leary plaque index and or bleeding on probing ≤25%.
  • Dental implants with screwed-retained prosthesis.

You may not qualify if:

  • Systemic diseases that can interfere dental implant placement.
  • Any contraindication for surgery procedures.
  • Heavy smokers (\> 20cig/day).
  • Background of drug abuse or other factors such as psychiatric diseases that, in opinion of the examiner, could interfere with the ability of the patient to cooperate and compliment with the study.
  • Patients who have had participated with another clinical trial the last 30 days.
  • Pregnant women or in lactation.
  • Patients with bad oral hygiene or not motivated.
  • Probing pockets depths with bleeding of ≥4 mm on a tooth adjacent to the edentulous space.
  • Guided bone regeneration required in the same time of the implant placement.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Barcelona

L'Hospitalet de Llobregat, Catalonia, 08903, Spain

RECRUITING

Related Publications (15)

  • Branemark PI, Adell R, Breine U, Hansson BO, Lindstrom J, Ohlsson A. Intra-osseous anchorage of dental prostheses. I. Experimental studies. Scand J Plast Reconstr Surg. 1969;3(2):81-100. doi: 10.3109/02844316909036699. No abstract available.

    PMID: 4924041BACKGROUND
  • Albrektsson T, Donos N; Working Group 1. Implant survival and complications. The Third EAO consensus conference 2012. Clin Oral Implants Res. 2012 Oct;23 Suppl 6:63-5. doi: 10.1111/j.1600-0501.2012.02557.x.

    PMID: 23062128BACKGROUND
  • Derks J, Tomasi C. Peri-implant health and disease. A systematic review of current epidemiology. J Clin Periodontol. 2015 Apr;42 Suppl 16:S158-71. doi: 10.1111/jcpe.12334.

    PMID: 25495683BACKGROUND
  • Buser D, Ingimarsson S, Dula K, Lussi A, Hirt HP, Belser UC. Long-term stability of osseointegrated implants in augmented bone: a 5-year prospective study in partially edentulous patients. Int J Periodontics Restorative Dent. 2002 Apr;22(2):109-17.

    PMID: 12019706BACKGROUND
  • Albrektsson T, Zarb G, Worthington P, Eriksson AR. The long-term efficacy of currently used dental implants: a review and proposed criteria of success. Int J Oral Maxillofac Implants. 1986 Summer;1(1):11-25. No abstract available.

    PMID: 3527955BACKGROUND
  • Oh TJ, Yoon J, Misch CE, Wang HL. The causes of early implant bone loss: myth or science? J Periodontol. 2002 Mar;73(3):322-33. doi: 10.1902/jop.2002.73.3.322.

    PMID: 11922263BACKGROUND
  • Quirynen M, Naert I, van Steenberghe D. Fixture design and overload influence marginal bone loss and fixture success in the Branemark system. Clin Oral Implants Res. 1992 Sep;3(3):104-11. doi: 10.1034/j.1600-0501.1992.030302.x.

    PMID: 1290790BACKGROUND
  • Malevez C, Hermans M, Daelemans P. Marginal bone levels at Branemark system implants used for single tooth restoration. The influence of implant design and anatomical region. Clin Oral Implants Res. 1996 Jun;7(2):162-9. doi: 10.1034/j.1600-0501.1996.070210.x.

    PMID: 9002835BACKGROUND
  • Vidyasagar L, Apse P. Dental implant design and biological effects on bone implant interface. Baltic Dent Maxillofac J. 2004;6:51-4.

    BACKGROUND
  • Isidor F. Influence of forces on peri-implant bone. Clin Oral Implants Res. 2006 Oct;17 Suppl 2:8-18. doi: 10.1111/j.1600-0501.2006.01360.x.

    PMID: 16968378BACKGROUND
  • Abrahamsson I, Berglundh T. Effects of different implant surfaces and designs on marginal bone-level alterations: a review. Clin Oral Implants Res. 2009 Sep;20 Suppl 4:207-15. doi: 10.1111/j.1600-0501.2009.01783.x.

    PMID: 19663966BACKGROUND
  • Koo KT, Lee EJ, Kim JY, Seol YJ, Han JS, Kim TI, Lee YM, Ku Y, Wikesjo UM, Rhyu IC. The effect of internal versus external abutment connection modes on crestal bone changes around dental implants: a radiographic analysis. J Periodontol. 2012 Sep;83(9):1104-9. doi: 10.1902/jop.2011.110456. Epub 2011 Dec 6.

    PMID: 22145806BACKGROUND
  • Nishioka RS, de Vasconcellos LG, de Melo Nishioka GN. Comparative strain gauge analysis of external and internal hexagon, Morse taper, and influence of straight and offset implant configuration. Implant Dent. 2011 Apr;20(2):e24-32. doi: 10.1097/ID.0b013e318211fce8.

    PMID: 21448016BACKGROUND
  • Lin MI, Shen YW, Huang HL, Hsu JT, Fuh LJ. A retrospective study of implant-abutment connections on crestal bone level. J Dent Res. 2013 Dec;92(12 Suppl):202S-7S. doi: 10.1177/0022034513510322. Epub 2013 Oct 24.

    PMID: 24158343BACKGROUND
  • Astrand P, Engquist B, Dahlgren S, Grondahl K, Engquist E, Feldmann H. Astra Tech and Branemark system implants: a 5-year prospective study of marginal bone reactions. Clin Oral Implants Res. 2004 Aug;15(4):413-20. doi: 10.1111/j.1600-0501.2004.01028.x.

    PMID: 15248875BACKGROUND

MeSH Terms

Conditions

Bone Diseases, MetabolicBacterial Infections

Interventions

Surgical Procedures, Operative

Condition Hierarchy (Ancestors)

Bone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic DiseasesBacterial Infections and MycosesInfections

Study Officials

  • Rui Figueiredo, DDS, MS, PhD

    University of Barcelona

    STUDY DIRECTOR
  • Eduard Valmaseda-Castellón, DDS, MS, PhD

    University of Barcelona

    STUDY CHAIR
  • Octavi Camps-Font, DDS, MS

    University of Barcelona

    PRINCIPAL INVESTIGATOR
  • Roxana Ghiorghiu, DDS, MS

    University of Barcelona

    PRINCIPAL INVESTIGATOR
  • Laura Rubianes-Porta, DDS, MS

    University of Barcelona

    PRINCIPAL INVESTIGATOR
  • Anna Piñol-Olea, DDS, MS

    University of Barcelona

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Laura Rubianes-Porta, DDS, MS

CONTACT

Octavi J. Camps-Font, DDS, MS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Patient will not know the type of connection of his or her implant until the study has finished. Outcome Assessor will be blinded. In the radiographic evaluation the implant-abutment connection will be hidden to assess the marginal bone loss.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Active comparator: Ocean E.C.®, Avinent Implant System S.L., Santpedor, Spain. Active comparator: Ocean I.C.®, Avinent Implant System S.L., Santpedor, Spain. Active comparator: Ocean C.C.®, Avinent Implant System S.L., Santpedor, Spain.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

June 21, 2018

First Posted

March 31, 2020

Study Start

June 13, 2018

Primary Completion

June 13, 2021

Study Completion

December 13, 2021

Last Updated

March 31, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Under request

Locations