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Influence of Soft Tissue Thickness on the Bone Level Around Implants

24. januar 2020 opdateret af: Jakub Hadzik, Akademicka Poliklinika Stomatologiczna

Influence of Soft Tissue Thickness on the Marginal Bone Level Around Implants in Esthetic Zone: 1 Year Randomized Control Trail

Healthy soft tissue around the implant are considered as a biological seal to prevent inflammatory periimplant diseases and ensure healthy, stable and long-term survival of a dental implant. Due to the fact that the measurement methods in the literature differ, it is necessary to establish objective measurement method and to determine the minimum amount of tissue thickness to maintain a stable level of bone around the implant.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Healthy soft tissue around the implant are considered as a biological seal to prevent inflammatory periimplant diseases and ensure healthy, stable and long-term survival of a dental implant. Due to the fact that the measurement methods in the literature differ, it is necessary to establish objective measurement method and to determine the minimum amount of tissue thickness to maintain a stable level of bone around the implant.

Purpose:

The aim of the study was to determine the effect of soft tissues in the implant area on the marginal bone level loss in the implant area and to define of the critical gingival thickness to minimize marginal bone level (MBL) loss.

Materials and methods:

75 bone level implants (Conelog® Camlog, Switzerland) were inserted in the aesthetic area. Thickening of soft tissues was performed both before and after implantation (group II and III), CTG and XCM were used (subgroup a and b). 12 months after the loading with final restoration, the thickness of soft tissues in the implant area was examined with ultrasonography (USG) device (Pirop®, Echoson, Poland), and each implant was subjected to Radiovisiography (RVG) RVG examination, where MBL loss was determined.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

57

Fase

  • Ikke anvendelig

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

To qualify for the study, the patients had to be >18 years and have missing teeth in the esthetic zone. Additional inclusion criteria were as follows:

  • missing single or double teeth in the anterior area of their upper or lower jaw with a proper inter arch relationship (incisors, canines and first premolar) with a ridge width (bucco-lingual) greater than 5 mm at its narrowest point and a minimum keratinized gingiva height of 2 mm buccally.
  • No previous soft tissue augmentation procedure at experimental site

Exclusion Criteria:

The criteria that disqualified patients from the study were previous grafting procedures in the area of interest and systemic or local diseases that could compromise healing or osteointegration. Smokers and patients with bruxism were also excluded from the study. Additional exclusion criteria were as follows:

  • implants placed with an insertion torque of 35 Ncm or less;
  • irradiation in the head and neck area;
  • untreated periodontitis;
  • poor oral hygiene (plaque score Approximal Plaque Index (API) 20%, bleeding score 10%) and
  • poor motivation;
  • fresh post extraction sockets

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: CTG connective tissue graft augmentation
CTG connective tissue graft (CTG) was used for soft tissue augmentation. I
12 months after gingival augmentation Measurement of marginal bone level and soft tissue thickness were done. STT (soft tissue thickness) was measured using ultrasonography with a Pirop® dental, ultrasound device (Echoson Company, Poland). The patients underwent a clinical and ultrasound examination before, 3 and 12 months after gingival augmentation (GA) respectively to evaluate STT (soft tissue thickness) at two points using ultrasound equipment (Pirop®, Echoson).
Aktiv komparator: XCM Xenogeneic collagen matrix (XCM)graft augmentation
Xenogeneic collagen matrix (XCM) was used for soft tissue augmentation.

12 months after gingival augmentation Measurement of marginal bone level and soft tissue thickness were done. STT (soft tissue thickness) was measured using ultrasonography with a Pirop® dental, ultrasound device (Echoson Company, Poland). The patients underwent a clinical and ultrasound examination before, 3 and 12 months after gingival augmentation (GA) respectively to evaluate TKT at two points using ultrasound equipment (Pirop®, Echoson).

Intraoral radiographs were taken using a paralleling technique with a Rinn-type film holder in high resolution mode (Visualixe HD®, Gendex®, USA). Two images of each region were selected to calculate the marginal bone changes:

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Ultrasound examination
Tidsramme: 12 months
ultrasound USG examination of tissue hickness
12 months
Radiological examination
Tidsramme: 12 monhs
RVG examination of marginal bone level change
12 monhs

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Jakub Hadzik, PhD, DDS, jakub.hadzik@umed.wroc.pl

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. maj 2012

Primær færdiggørelse (Faktiske)

1. marts 2016

Studieafslutning (Faktiske)

1. marts 2016

Datoer for studieregistrering

Først indsendt

11. januar 2020

Først indsendt, der opfyldte QC-kriterier

24. januar 2020

Først opslået (Faktiske)

28. januar 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

28. januar 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. januar 2020

Sidst verificeret

1. januar 2020

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • STT and MBL

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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