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Periodontal Biocompatibility of Pediatric Crowns

20. Mai 2026 aktualisiert von: Sema Aydınoglu, Recep Tayyip Erdogan University Training and Research Hospital

Comparative Evaluation of Periodontal Biocompatibility of Pediatric Crowns Using Clinical Parameters and GCF Biomarkers

Different full-coverage crown materials are widely used in pediatric dentistry for the restoration of primary teeth with extensive substance loss. Since these restorations remain in close contact with gingival tissues for prolonged periods, they may influence periodontal health depending on their surface characteristics, marginal adaptation, and biological properties. The aim of this study was to evaluate the effects of stainless steel crowns (SSC), prefabricated zirconia crowns (PZC), and fiber-glass crowns (FGC) on periodontal health in children using both clinical periodontal parameters and gingival crevicular fluid (GCF) biomarkers, including IL-1β and MMP-8, within a split-mouth study design.

Studienübersicht

Studientyp

Beobachtungs

Einschreibung (Tatsächlich)

21

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Kind

Akzeptiert gesunde Freiwillige

Ja

Probenahmeverfahren

Wahrscheinlichkeitsstichprobe

Studienpopulation

children who applied for the dental treatment to the Faculty of Dentistry in Rize

Beschreibung

Inclusion Criteria:

  • Children who were aged between 6 and 9 years
  • Children had a score of 3 or 4 on the Frankl Behavioral Scale
  • Children had an indication for full coronal restoration in the primary second molars in all the three quadrants
  • Presence of extensive or chronic carious lesions involving the pulp with radiographic scores ranging between 2 and 3
  • Presence of localized hypoplastic defects
  • Normal or non-resorbed interproximal bone levels, defined radiographically as a distance of no more than 2 mm between the interdental bone crest and the cementoenamel junction
  • Those where the root resorption level was blunt or the apex was rounded, and those where 1/4 of the root has been resorbed

Exclusion Criteria:

  • Children had any systemic disease
  • History of allergy to local anesthetic agents, nickel, or resin-based restorative materials
  • Extremely poor oral hygiene
  • Periodontal disease
  • Malocclusion

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
Group 1
Teeth diagnosed with an indication for full coronal restoration and treated with stainless steel crown.

Clinical periodontal assessments were carried out for all participants at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) follow-up visits. The clinical periodontal status was assessed with the probing pocket depth (PPD), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).

For each patient, GCF measurements and sample collection were performed at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) visits. MMP-8 and IL-1β analyses were performed on GCF samples by the enzyme-linked immunosorbent assay (ELISA).

Group 2
Teeth diagnosed with an indication for full coronal restoration and treated with prefabricated zirconia crown.

Clinical periodontal assessments were carried out for all participants at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) follow-up visits. The clinical periodontal status was assessed with the probing pocket depth (PPD), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).

For each patient, GCF measurements and sample collection were performed at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) visits. MMP-8 and IL-1β analyses were performed on GCF samples by the enzyme-linked immunosorbent assay (ELISA).

Group 3
Teeth diagnosed with an indication for full coronal restoration and treated with fiber glass crown.

Clinical periodontal assessments were carried out for all participants at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) follow-up visits. The clinical periodontal status was assessed with the probing pocket depth (PPD), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).

For each patient, GCF measurements and sample collection were performed at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) visits. MMP-8 and IL-1β analyses were performed on GCF samples by the enzyme-linked immunosorbent assay (ELISA).

Group 4
Healthy primary molars (control group)

Clinical periodontal assessments were carried out for all participants at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) follow-up visits. The clinical periodontal status was assessed with the probing pocket depth (PPD), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).

For each patient, GCF measurements and sample collection were performed at baseline (T0), as well as during the third-month (T1) and sixth-month (T2) visits. MMP-8 and IL-1β analyses were performed on GCF samples by the enzyme-linked immunosorbent assay (ELISA).

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
assessment of probing pocket depth (PPD)
Zeitfenster: From beginning to the end of treatment at 6 months
probing pocket depth (PPD) was measured the distance between the gingival margin and the deepest point of the sulcus. PPD was evaluated from six surfaces (mesiobuccal, midbuccal, distobuccal, mesiolingual/mesiopalatal, midlingual/midpalatal, and distolingual/distopalatal) of the teeth. The measurements were done utilizing a Williams periodontal probe.
From beginning to the end of treatment at 6 months
assessment of matrix metalloproteinase-8 (MMP-8) level in gingival crevicular fluid (GCF)
Zeitfenster: in the sixth month (after sample collection was complete)
MMP-8 was performed on GCF samples by the enzyme-linked immunosorbent assay (ELISA) in the Medical Biochemistry Research and Application Laboratory of the Recep Tayyip Erdogan University Faculty of Medicine. Twenty-four hours before the assay procedure, the eppendorf tubes were removed from the deep freezer and allowed to thaw progressively at -20 °C followed by +4 °C. Prior to analysis, both the samples and assay reagents were equilibrated to room temperature (18-25 °C). Each GCF specimen was analyzed individually without combining the samples. The results were expressed in ng/mL (MMP-8).
in the sixth month (after sample collection was complete)
Assessment of bleeding on probing (BOP)
Zeitfenster: From beginning to the end of treatment at 6 months
Bleeding on probing (BOP) scores were obtained from four surfaces (mesial, distal, buccal, and palatal/lingual) of the primary second molars. The measurements were done utilizing a Williams periodontal probe.
From beginning to the end of treatment at 6 months
Assessment of plaque index (PI)
Zeitfenster: From beginning to the end of treatment at 6 months
Plaque index (PI) scores were obtained from four surfaces (mesial, distal, buccal, and palatal/lingual) of the primary second molars. The measurements were done utilizing a Williams periodontal probe.
From beginning to the end of treatment at 6 months
Assessment of Gingival index (GI)
Zeitfenster: From beginning to the end of treatment at 6 months
Gingival index (GI) scores were obtained from four surfaces (mesial, distal, buccal, and palatal/lingual) of the primary second molars. The measurements were done utilizing a Williams periodontal probe.
From beginning to the end of treatment at 6 months
Assessment of interleukin-1 beta (IL-1β) level in gingival crevicular fluid (GCF)
Zeitfenster: in the sixth month (after sample collection was complete)
In GCF samples taken from patients, IL-1β level was determined by enzyme-linked immunosorbent assay (ELISA) according to the manufacturer's instructions at the Medical Biochemistry Research and Application Laboratory of Recep Tayyip Erdoğan University Faculty of Medicine. Twenty-four hours before the assay procedure, the eppendorf tubes were removed from the deep freezer and allowed to thaw progressively at -20 °C followed by +4 °C. Prior to analysis, both the samples and assay reagents were equilibrated to room temperature (18-25 °C). Each GCF specimen was analyzed individually without combining the samples. The results were expressed in pg/mL (IL-1β).
in the sixth month (after sample collection was complete)

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

30. Juni 2024

Primärer Abschluss (Tatsächlich)

30. Dezember 2025

Studienabschluss (Tatsächlich)

20. April 2026

Studienanmeldedaten

Zuerst eingereicht

14. Mai 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

20. Mai 2026

Zuerst gepostet (Tatsächlich)

28. Mai 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

28. Mai 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

20. Mai 2026

Zuletzt verifiziert

1. Mai 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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