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Dental ImplantsNCT03986164

Implants Immediately Installed in Esthetic Area With Computer-guided Surgery

A study testing Guided surgery with bovine spongious bone substitute and Conventional surgery with bovine spongious bone substitute in people with Dental Implants, run by University of Campinas, Brazil at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of this randomized and longitudinal clinical study is to compare the installation of immediate implants in the esthetic zone through computer-guided-surgery and conventional surgery. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Dental Implants
What is being tested?
Guided surgery with bovine spongious bone substitute and Conventional surgery with bovine spongious bone substitute
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteBrazil
Study dates
10 Apr 2019to 28 Feb 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Patients with sufficient bone volume availability apically and palatally that allows the correct positioning of the implants (Kan et al, 2011);
  • Implants with primary stability of 20-45 N (Gallucci et al, 2014);
  • Patients with teeth to be extracted in the Class I, II or III corono-radicular position, according to Kan et al. (2011);
  • Patients with distance from the bone crest to the point of contact in adjacent teeth less than or equal to 6.5mm (Buser et al 2017).

Who cannot join

  • Presence of diabetes, blood disorders and systemic diseases that prevent the surgical procedure;
  • History of radiotherapy in the head or neck region;
  • History of treatment with bisphosphonates;
  • Pregnant or lactating women;
  • Patients with teeth to be extracted in the Class V corono-radicular position, according to Kan et al. (2011);
  • Gingival recession in the teeth indicated for exodontia (Kan et al, 2001);
  • Acute infection at the implant site (Morton et al, 2014);
  • Unavailability to attend the FOP / UNICAMP on the pre-determined days.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Piracicaba Dental School, State University of Campinas

    Piracicaba, São Paulo, 13414-903

Other trials in Brazil

About this study

Official title: Implants Immediately Installed in Esthetic Area With Computer-guided Surgery: Randomized Clinical Trial

The objective of this randomized and longitudinal clinical study is to compare the installation of immediate implants in the esthetic zone through computer-guided-surgery and conventional surgery. To this end, 22 patients who need implant-supported replacement on the anterior region of the maxilla will be selected and after extraction will receive: Guided surgery (GS): installation of dental implant with the aid of the virtually planned guide by means of specific software; Conventional surgery (CS): installation of dental implant performed freehand using a conventional surgical guide made by study models.

Read the detailed description

The objective of this randomized and longitudinal clinical study is to compare the installation of immediate implants in the esthetic zone through computer-guided-surgery and conventional surgery. To this end, 22 patients who need implant-supported replacement on the anterior region of the maxilla will be selected and after extraction will receive: Guided surgery (GS): installation of dental implant with the aid of the virtually planned guide by means of specific software; Conventional surgery (CS): installation of dental implant performed freehand using a conventional surgical guide made by study models. Tomographies will be performed 10 days after the surgery for the measurement of both linear and angular shifts between the installed implants and the virtual planning. All the clinical and radiographic assessments (Plaque and Bleeding Index, Drilling Depth, Relative Clinical Insertion Level and the Margin Position of Peri-Implant Mucosa) will be carried out after the surgery and within 6 and 12 months of post-operative. Assesments of the esthetic success (pink/white score) and survival and success of the implant will also be carried out. In the prosthetic part, it will be assessed the abutment mobility; corrective measures for the prothesis; repair on prothesis or abutment. The success and survival assessments of crowns will be done through structure fracture, occlusal roughness, marginal integrity and contour of the restoration. It will also be assessed the procedural impact in quality of life by applying a 36-closed-question-survey focused on appearence, pain, oral comfort, general performance, feeding and chewing. Subsequently, the data will be tabulated, and according to their distribution, the appropriate statistical tests will be applied, considering a 5% index of significance to all the analyses.

Conditions
Dental Implants
Being tested
Guided surgery with bovine spongious bone substitute, Conventional surgery with bovine spongious bone substitute
Keywords
Guided Surgery, Linear Shifts, Angular Shifts, Satisfaction
Medical subject headings
Personal Satisfaction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Guided surgery with bovine spongious bone substituteDevice

    A minimally traumatic extraction will be performed aiming at the preservation of tissue integrity. After this step, milling will be performed using a sequence of guides and cutters recommended by the Raptor Implacil / Bioparts (Implacil De Bortoli) system manufacturer for implant installation (Cone Morse 3.5mm from 11-13mm Implacil De Bortoli) in computer-guided surgeries.

    In the spaces between the implant and the buccal bone plate will be filled with xenogene biomaterial (Geistlich Bio-Oss 0.25-1mm). Immediately after implant installation, the prosthetic component (Smart Line, Trunnion CM 3.5mm - T 1.5-3.5mm, height 4mm - Implacil De Bortoli) will be placed.

    If necessary, the sutures of the surgical procedures will be performed with polygalactin 5.0 (Vycril Rapid®, Jonhson's Jonhson, São José dos Campos) and will be removed after 7 days.

  • Conventional surgery with bovine spongious bone substituteDevice

    The sequence of cutters recommended by the manufacturer for this type of surgery and installation of the same type of implant (Cone Morse due cone 3.5mm) will be adopted. The perforations of the collar for future insertion of the implants will be performed aiming the installation of the implants with its platform installed with sub-crestal position. The implant should be installed along the palatine wall to obtain primary stability, at the center of the mesio-distal width predetermined by the final restoration, with a minimum distance of 2 mm from the adjacent tooth, and 3 mm from the free gingival margin, becoming slightly palatinate (Kan et al, 2018). Immediately after installation, the prosthetic component (Smart Line, Trunnion CM 3.5mm - T 1.5-3.5mm, height 4mm) will be placed. If necessary, the sutures of the surgical procedures will be performed with polygalactin 5.0 (Vycril Rapid®, Jonhson's Jonhson, São José dos Campos) and will be removed after 7 days.

Study groups in NCT03986164
Study groupRoleWhat they receive
Guided surgery (GS)Active comparatorInstallation of dental implant with the aid of the virtually planned guide by means of specific software
Receives: Device: Guided surgery with bovine spongious bone substitute
Conventional surgery (CS)Active comparatorInstallation of dental implant performed freehand using a conventional surgical guide made by study models
Receives: Device: Conventional surgery with bovine spongious bone substitute

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Position of the implant

    Difference between angular position of the implant by computer software and angular position of the implant by free hand.

    Measured: Baseline, 10 days

Secondary outcomes (3)
  1. Relative gingival margin position

    Distance from stent probing to peri-implant margin tissue

    Measured: Immediately after surgery, 6 months, 12 months

  2. Peri-implant probing depth

    Distance from peri-implant mucosa to more apical portion of peri-implant sulcus

    Measured: Immediately after surgery, 6 months, 12 months

  3. Relative clinical attachment level

    Distance from stent probing to more apical portion of peri-implant sulcus

    Measured: Immediately after surgery, 6 months, 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jun 2019
  2. Study start10 Apr 2019
  3. Primary completion28 Feb 2025
  4. Study completion28 Feb 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
This is a longitudinal parallel randomized clinical trial, in Piracicaba Dental School, State University of Campinas (FOP-UNICAMP), periodic follow-ups will be performed for one year after the installation of implants in the anterior maxilla, by means of computer-assisted dental implant surgery or conventional surgery. The study will be conducted according to the Helsinki Declaration (2008), following the protocol for randomized clinical trials (Consort) (Schulz et al., 2010). The implant placement evaluations; radiographic and clinical evaluations of peri-implant tissues; as well as the success of the implants and the rehabilitation will be carried out immediately, 6 and 12 months after the implant installation.
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03986164
Sponsor's protocol ID
09409619.3.0000.5418
Status last verified
Mar 2025
First submitted
11 Jun 2019
Last updated
2 Apr 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Guided surgery with bovine spongious bone substitute and Conventional surgery with bovine spongious bone substitute in people with Dental Implants, run by University of Campinas, Brazil at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Position of the implant (time frame: Baseline, 10 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Apr 2025.

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