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Laser Modification of Dental Implant Abutment Surfaces

19. august 2026 opdateret af: Alexandria University

Impact of Surface Modification of Abutments of Dental Implants by Laser on Soft Tissue Seal (A Randomized Controlled Clinical Trial)

Introduction: Tight soft tissue integration to the dental implants is essential to achieve a successful outcome of dental implants. Contamination by oral bacteria of the implant-mucosa interface can result in gingival recession, pocket formation, and bone resorption. There are many surface modification strategies to reinforce the soft tissue seal to dental implants. One of these strategies is laser technology. The aim of this study is to evaluate the effect of laser-induced roughness of titanium surfaces of final abutments on the connective tissue seal to the dental implant. Materials and Methods: Twenty-four pure titanium abutments of dental implants will be evaluated in this study. The abutments will be divided into 2 groups: group A will be treated with ND: YAG laser, and group B will not be treated with a laser as a control group. After 3 months, evaluation will be done by measuring peri-implant probing depth, modified gingival index, bleeding index, plaque index, and patient satisfaction.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

24

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Egypten
      • Alexandria, Egypten
        • Outpatient Clinic of Periodontology and Oral medicine Department, Faculty of Dentistry, Alexandria University, Egypt

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • An informed consent will be signed from all the volunteers and they will be informed with all the steps, risk and benefits regarding the study.
  • Patients having osseointegrated implants ready to receive final abutment.

Exclusion Criteria:

  • The presence of chronic systemic disease.
  • Smoking of more than 10 cigarettes per day.
  • Bruxism habits.
  • Alcohol or drug abuse.
  • Poor oral hygiene.
  • Pregnancy

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: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Kontrolgruppe
Andet: Machined abutment
will include twelve abutments which will be left machined (as received from the manufacturer) to serve as controls.
Eksperimentel: Studiegruppe
Andet: ND: YAG laser
This will include twelve titanium abutments treated by ND: YAG laser with an output power 4 W, representing 80mJ for a period of 5 seconds (20).

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
change in peri-implant probing depth
Tidsramme: up to 3 months
Desirable probing depths around dental implants are 2.5mm to 4mm. Peri-implantitis is often defined by the incidence of peri-implant probing depth ≥ 5 mm associated with bleeding on probing
up to 3 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
change in Modified gingival index (MGI)
Tidsramme: up to 3 months

the scoring will be as follows: 0 = absence of inflammation,

  1. = mild inflammation; slight change in color, little change in color; little change in texture of any portion of the marginal or papillary gingival unit,
  2. = mild inflammation; criteria as above but involving the entire marginal or papillary gingival unit,
  3. = moderate inflammation; glazing, redness, edema, and/or hypertrophy of the marginal or papillary gingival unit,
  4. = severe inflammation; marked redness, edema and/or hypertrophy of the marginal or papillary gingival unit, spontaneous bleeding, congestion, or ulceration
up to 3 months
chaneg in Bleeding index (BI)
Tidsramme: up to 3 months
The Bleeding Index (modified Index of Saxton), will be performed by using a dental probe. The probe will be engaged approximately 1 millimetre (mm) into the gingival crevice. A moderate pressure will be used while sweeping. The scoring system is as follows: 0 = no bleeding after 30 seconds, 1 = bleeding upon probing after 30 seconds, 2 = immediate bleeding observed
up to 3 months
change in Plaque index
Tidsramme: up to 3 months
0 = no plaque. 1 = separate flecks of plaque at the cervical margin of the tooth. 2 = a thin continuous band of plaque (up to 1 mm) at the cervical margin of the tooth. 3 = a band of plaque wider than 1 mm but covering less than one-third of the crown of the tooth, 4= more than 1/3 but less than 2/3 of the tooth is covered with plaque , 5 indicated that more than 2/3 of the tooth surface is covered with plaque
up to 3 months
Patient satisfaction
Tidsramme: up to 3 months
Patient satisfaction will be assessed using a visual analogue scale (VAS)
up to 3 months

Samarbejdspartnere og efterforskere

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

Sponsor

Alexandria University

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)

15. juni 2025

Primær færdiggørelse (Faktiske)

25. december 2025

Studieafslutning (Faktiske)

30. december 2025

Datoer for studieregistrering

Først indsendt

19. august 2026

Først indsendt, der opfyldte QC-kriterier

19. august 2026

Først opslået (Faktiske)

21. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

21. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

19. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 1078-05/2025

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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