Effect of Repeated Removal and Re-placement of Abutments Around Dental Implants

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-05-01

Study Completion Date

2020-05-31

Brief Summary

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Repeated removal and re-placement of healing and prosthetic abutments result in frequent injuries to the soft tissues. The purpose was to evaluate the effect of repeated removal and re-placement of laser microgrooved and smooth/machined healing and prosthetic abutments during restorative stages, and 1 year after functional loading, on proinflammatory cytokine levels around dental implants.

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Detailed Description

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Twenty-four patients each received 2 one-stage implants in a split mouth design on the same jaw. In each patient one healing and prosthetic abutments with a laser microgrooved surface (LMS group) and one healing and prosthetic abutments with smooth/machined surface (S/MS group) were used. Four months following implant placement \[Baseline (BSL)\], the healing abutments were disconnnected and reconnected three times to carry out the impression procedures and metal framework try-in. Four weeks later (T0), definitive prosthetic abutments were installated with screw retained crowns. Samples for immunological analyses were taken from the sulcus around each implant at BSL, T0, and 1 year after functional loading (T1). Peri-implant crevicular fluid samples were analyzed for interleukin-1beta (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor (TNF)-α levels using the ELISA kit.

Conditions

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Peri-implant Mucositis

Study Design

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Intervention Model

SEQUENTIAL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Implant abutments

implant abutments

Group Type EXPERIMENTAL

Repeated removal and re-placement of healing and prosthetic abutments

Intervention Type DIAGNOSTIC_TEST

Repeated removal and re-placement of healing and prosthetic abutments

Interventions

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Repeated removal and re-placement of healing and prosthetic abutments

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* 18 years or older, in good general health, and with sufficient amount of bone available to place a standard implant

Exclusion Criteria

* natural teeth adjacent to surgical area affected by untreated periodontal or endodontic infections, peri-implant bone defects requiring bone augmentation, absence of opposing occlusion,

Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes