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CompletedNCT03784430Updated May 17, 2022

Soft and Hard Tissue Changes After Immediate Single-tooth Replacement

An interventional study of Immediate dental implant placement and Immediate dental implant placement with CTG in Implant, sponsored by Università Vita-Salute San Raffaele. Completed at 1 site in Italy. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-17.

Sponsored by Università Vita-Salute San Raffaele · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 2 months after the study started (first participant enrolled Oct 2017, registered Dec 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

A recent systematic review (Lee et al, 2016) reported that placement of a soft tissue graft concurrent with immediate implantation may contribute to the stability of gingival level and the augmentation of soft tissue contour. However, most included studies did not have a control group to directly demonstrate the benefit of an immediate implant combined with soft tissue graft (IMITG) compared to immediate implant alone.The objective of this randomized controlled clinical trial with a parallel design is to evaluate the influence of the connective tissue graft on the buccal bone alterations after tooth extraction and immediate implant placement by means of cone beam computer tomography (CBCT).

Read the detailed description

All participants will be selected on a consecutive basis, among individuals, above the age of 18 years, referred to Dental Clinic of the San Raffaele University, with a single failing tooth in the upper and lower jaw from second premolar to second premolar, candidates for a single implant restoration. After local anesthesia, a split-full-split thickness envelope flap, as described for the treatment of multiple gingival recessions by Zucchelli and de Sanctis (2000), will be elevated and the tooth will be extracted a-traumatically. The immediate implantation procedure will be carried out according to the manufacture protocol and 1mm of the transmucosal portion of the implant will be positioned under the buccal bone crest. In the group "Implant+CTG" a connective tissue graft (CTG), resulting from the extraoral de-epithelialization with the knife blade of a free gingival graft harvested from the palate, will be anchored at the anatomic papillae with 2 horizontal mattress sutures and positioned 1 mm coronal to the buccal bone crest and in the apical direction 2 mm above the buccal crest. Patients will be followed for 6 months after implant placement and 6 months after loading.

02

Conditions studied

  • Implant
03

In context

Lead sponsor

Università Vita-Salute San Raffaele is the lead sponsor of 84 studies on the registry; 33 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • a single tooth to be extracted for endodontic failure, fractures, root caries or resorption in the maxillary and mandibular area from second premolar to second premolar
  • patient in good systemic health, with no contraindication for oral surgical interventions

Exclusion criteria

Exclusion Criteria:

  • patients with impaired systemic diseases that will interfere with surgical interventions (autoimmune diseases, uncontrolled diabetes)
  • assumption of bisphosphonate
  • smoking more than 10 cigarettes a day
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
30 participants (actual)

Study arms

  • Active comparator
    Implant

    Immediate dental implant placement

    Procedure: Immediate dental implant placement

  • Experimental
    Implant+CTG

    Immediate dental implant placement with CTG.

    Procedure: Immediate dental implant placement with CTG

Interventions

  • ProcedureImmediate dental implant placement

    Tooth will be extracted and a dental implant will be positioned at the same time.

  • ProcedureImmediate dental implant placement with CTG

    Tooth will be extracted and a dental implant will be positioned at the same time with a connective tissue graft.

06

What researchers measure

Primary outcomes

  1. Volumetric buccal bone changes

    Ratio scale - lower values represent a better outcome

    Time frame: 6 months

Secondary outcomes

  1. Volumetric buccal soft tissue changes

    Ratio scale - higher values represent a better outcome

    Time frame: 6 months

  2. Buccal soft tissue changes

    Ratio scale - higher values represent a better outcome

    Time frame: 6 months

  3. Patient perception outcomes

    Visual Analogic Scale - values from '0=no pain' to '10=worst pain imaginable'

    Time frame: 1 week and 6 months

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Study locations

1 site
  • Massimo de Sanctis
    Milan, Mi 20132, Italy
08

References and documents

Publications

  • Schneider D, Schmidlin PR, Philipp A, Annen BM, Ronay V, Hammerle CH, Attin T, Jung RE. Labial soft tissue volume evaluation of different techniques for ridge preservation after tooth extraction: a randomized controlled clinical trial. J Clin Periodontol. 2014 Jun;41(6):612-7. doi: 10.1111/jcpe.12246. Epub 2014 Mar 26. PubMed 24593810 ↗
  • Jung RE, Philipp A, Annen BM, Signorelli L, Thoma DS, Hammerle CH, Attin T, Schmidlin P. Radiographic evaluation of different techniques for ridge preservation after tooth extraction: a randomized controlled clinical trial. J Clin Periodontol. 2013 Jan;40(1):90-8. doi: 10.1111/jcpe.12027. Epub 2012 Nov 19. PubMed 23163915 ↗
  • Chappuis V, Bornstein MM, Buser D, Belser U. Influence of implant neck design on facial bone crest dimensions in the esthetic zone analyzed by cone beam CT: a comparative study with a 5-to-9-year follow-up. Clin Oral Implants Res. 2016 Sep;27(9):1055-64. doi: 10.1111/clr.12692. Epub 2015 Sep 15. PubMed 26370904 ↗
  • Schropp L, Wenzel A, Spin-Neto R, Stavropoulos A. Fate of the buccal bone at implants placed early, delayed, or late after tooth extraction analyzed by cone beam CT: 10-year results from a randomized, controlled, clinical study. Clin Oral Implants Res. 2015 May;26(5):492-500. doi: 10.1111/clr.12424. Epub 2014 Jun 2. PubMed 24890861 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 17, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03784430
Lead sponsor
Università Vita-Salute San Raffaele
Responsible party
Massimo de Sanctis (Prof., Università Vita-Salute San Raffaele) — Principal investigator
First posted
Dec 21, 2018
Start date
Oct 3, 2017
Primary completion
Jun 9, 2021
Completion
Jun 9, 2021
Last update
May 17, 2022

Study contacts

Massimo de Sanctis, MD
principal investigator · Università Vita-Salute San Raffaele

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2022. You cannot join it, but the record below documents what was studied.

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