NCT04075383

Brief Summary

The objective of the research project will be to compare immediate and early unitary implants for the rehabilitation of missing teeth in the upper aesthetic region. A randomized controlled trial will be conducted in parallel with 120 individuals (60 per group) who are above 18 years of age, periodontally healthy, and who need to perform only one unit implant in the upper aesthetic region between the second premolars. In the immediate implant group, the tooth will be extracted in a minimally traumatic manner and the implant will be installed immediately after the fresh alveolus. Bovine bone replacement will be inserted into the gap between implant and vestibular wall of the alveolus, and an immediate temporary will be installed immediately. The provisional will be maintained for 3 months when the definitive crown will be made. In the early implant group, the tooth will be extracted, and after 2 months the implant will be installed with the use of bovine bone substitute to restore the buccal bone contour. The implant will be submerged, and 3 months of osseointegration will be performed reopening and final crown making. In both groups, the individuals will be followed for 1 year after the installation of the definitive crown. The outcomes evaluated will be patient satisfaction (main outcome), gingival phenotype, visible plaque, depth of probing, submucosal bleeding, proximal radiographic bone level, tomographic vestibular bone volume, perimplant clinical aesthetic indexes (Esthetic Pink Score and Papillary Index), evaluation three-dimensional tissue from intra-oral scanning and 3D printing, implant-related quality of life, and early and late implantation failures. Linear and logistic models of generalized estimating equations that take into account the longitudinal character of the study will be used for data analysis.

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
120

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jun 2019

Longer than P75 for phase_2

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 22, 2019

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

June 27, 2019

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 30, 2019

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 22, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 22, 2024

Completed
Last Updated

April 5, 2022

Status Verified

April 1, 2022

Enrollment Period

5 years

First QC Date

June 27, 2019

Last Update Submit

April 2, 2022

Conditions

Keywords

dental implantestheticsquality of life

Outcome Measures

Primary Outcomes (3)

  • patient satisfaction: questionnaire

    satisfaction with treatments by questionnaire in a VAS scale

    Up to 24 months

  • tridimensional tissue changes

    3D measurements obtained in oral scanning

    Up to 24 months

  • Buccal bone level

    CBCT analysis of the buccal bone

    Up to 24 months

Secondary Outcomes (7)

  • Pink esthetic score

    Up to 24 months

  • White esthetic score

    Up to 24 months

  • Implant failure

    Up to 24 months

  • Oral health related quality of life: OHIP-14

    Up to 24 months

  • dental plaque

    Up to 24 months

  • +2 more secondary outcomes

Study Arms (2)

immediate dental implant

OTHER

The implant is installed immediately after tooth extraction.

Procedure: immediate dental implant

immediate-delayed dental implant

OTHER

The implant is installed 8 weeks after tooth extraction.

Procedure: immediate-delayed dental implant

Interventions

Replacement of a lost tooth with a titanium screw retained in the alveolar bone in the same session of tooth extraction.

immediate dental implant

Replacement of a lost tooth with a titanium screw retained in the alveolar bone 8 weeks after tooth extraction.

immediate-delayed dental implant

Eligibility Criteria

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

You may qualify if:

  • Patients above 18 years old who require only one single implant in the upper aesthetic area between the second premolars will be included.
  • The region from which the tooth will be extracted should have bone quality and quantity compatible with implant placement with a minimum diameter and length of 3.0 mm and 8.0 mm, respectively.

You may not qualify if:

  • Who present compromise immunology of any nature;
  • Who have been exposed to head and neck radiotherapy;
  • Who have uncontrolled diabetes (glycated hemoglobin above 6.5 mg/dL);
  • Who present active periodontitis, defined by the presence of bleeding on probing \>10% and probing depth and clinical attachment loss \> 4mm;
  • Who have performed or are being treated with intravenous bisphosphonates.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Alex Haas

Porto Alegre, Rio Grande do Sul, 90630080, Brazil

RECRUITING

MeSH Terms

Interventions

Immediate Dental Implant Loading

Intervention Hierarchy (Ancestors)

Dental Implantation, EndosseousDental ImplantationOral Surgical Procedures, PreprostheticOral Surgical ProceduresSurgical Procedures, OperativeProsthesis ImplantationDentistryProsthodontics

Study Officials

  • Alex Haas, PhD

    Federal University of Rio Grande do Sul

    STUDY DIRECTOR

Central Study Contacts

Alex Haas, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Researchers involved in the assessment of all outcomes will be not aware of the randomisation
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: randomised controlled parallel clinical trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

June 27, 2019

First Posted

August 30, 2019

Study Start

June 22, 2019

Primary Completion

June 22, 2024

Study Completion

June 22, 2024

Last Updated

April 5, 2022

Record last verified: 2022-04

Data Sharing

IPD Sharing
Will not share

Locations