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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05235048
Other study ID # ERGOPerio 15-01
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 2015
Est. completion date September 2017

Study information

Verified date March 2022
Source The European Research Group on Periodontology (ERGOPerio)
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

It is unclear what is the best approach to implant site development after tooth extraction when the pathology leading to extraction has damaged the alveolus. The main objective of this study is to assess if socket preservation and/or reconstruction surgery provides a clinical benefit in terms of ability to place an implant in a prosthetically guided position in such clinical conditions. The PICO question therefore is: In patients requiring single tooth extraction what is the benefit of socket preservation/reconstruction surgery with respect to spontaneous healing in terms of feasibility and ease of implant surgery?


Description:

This will be a parallel group, standard of care-controlled, assessor-blind, randomized, multicenter, clinical trial. The statistical design will be a superiority trial in terms of the primary outcome with reference to the standard of care control (spontaneous healing). Primary outcome: Possibility to place an implant in a prosthetically driven position with or without bone or soft tissue augmentation 16-20 weeks after tooth extraction, evaluated at planning with cone beam CT and confirmed at surgery.


Recruitment information / eligibility

Status Completed
Enrollment 160
Est. completion date September 2017
Est. primary completion date September 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Systemically healthy. No contraindications to elective oral surgery - All pathologies requiring single tooth extraction with adjacent teeth (or implant) with the presence of at least one third of the alveolus. - Evidence of subject ability to achieve good oral hygiene and control gingivitis in the whole of the dentition (FMPS<25% and FMBS<25%) - Ability to understand study procedures and to comply with them for the entire length of the study. Ability and willingness to give informed consent. Exclusion Criteria: - Presence of frank purulence or acute abscess at the time of extraction - Presence of bone resorption of one or more walls of the alveolus extending to the apical third of the socket - Self reported current smoking exceeding 20 cigarettes/day or pipe or cigar smoking - Presence of medical contraindications to elective surgery

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Tooth extraction
Atraumatic tooth extraction without flap elevation
Tooth extraction and socket seal with connective tissue graft
Atraumatic tooth extraction without flap elevation and seal of the alveolar socket with connective tissue graft (microsurgery)
Tooth extraction and socket seal with BRG and connective tissue graft and
Atraumatic tooth extraction without flap elevation, position of a bone replacement graft into the socket and seal of the alveolar socket with connective tissue graft (microsurgery)
Tooth extraction and socket seal with membrane placement, BRG and connective tissue graft
Atraumatic tooth extraction without flap elevation, position of a collagen membrane and bone replacement graft into the socket and seal of the alveolar socket with connective tissue graft (microsurgery)

Locations

Country Name City State
n/a

Sponsors (2)

Lead Sponsor Collaborator
The European Research Group on Periodontology (ERGOPerio) The University of Hong Kong

Outcome

Type Measure Description Time frame Safety issue
Primary Possibility to place dental implant The possibility to place a dental implant in a prosthetically driven position (with or without bone or soft tissue augmentation) 16-20 weeks after tooth extraction will be evaluated with a dedicated planning software using cone beam CT data and and digital scanning according to standard clinical practice 16-20 weeks
Primary Surgeon's confirmation of the ability to place a dental implant Confirmation during the surgery of the ability to actually insert the implant in a prosthetically driven position with or without the need for soft or hard-tissue augmentation. 16-20 weeks
Secondary Vertical change in bone height at the deepest point in the socket Bone fill of the socket evaluated at the time of dental implant placement as change in the distance between a customized surgical stent and the bottom of the alveolus using a periodontal probe (difference between baseline and 16-20 week healing) 16-20 weeks
Secondary Vertical change in bone height at the buccal bone crest Bone fill of the socket evaluated at the time of dental implant placement as change in the distance between a customized surgical stent and the bottom of the alveolus using a periodontal probe (difference between baseline and 16-20 week healing) 16-20 weeks
Secondary Vertical change in bone height at the crest of adjacent teeth Harm to bone of adjacent teeth measured by clinical attachment level loss and trans gingival probing. 16-20 weeks
Secondary Radiographic bone changes Bone fill of the socket measured on routine intraoral radiographs 16-20 weeks
Secondary Change in keratinized tissue width between baseline and insertion of prosthetic crown Soft tissue preservation assessed as millimetre of keratinised tissue as measured with a periodontal probe 16-20 weeks
Secondary Need for additional bone augmentation at the time of implant placement (and/or implant uncovering, if submerged healing) Need for additional augmentation assessed by the surgeon during implant placement 16-20 weeks
Secondary Wound healing index Early healing assessed with standardized composite healing index by dentist 1-4 weeks
Secondary OHIP-14 Oral health related quality of life standard instrument (questionnaire) - 5 point Likert scale with greater scores indicating better quality of life. 1-2 weeks
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