- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07644676
The Impact of Adhesion Strategy on the Clinical Performance Of Indirect Dental Restorations
The Influence of Cement Systems on the Outcome of Tooth Supported Zirconia Crowns in the Posterior Region: a Randomized ,Multicenter, and Practice-based Clinical Trial
The goal of this clinical trial is to evaluate whether different cement systems influence the clinical outcome of posterior tooth supported zirconia crowns in adult patients requiring single crown restorations. The main questions it aims to answer are:
- Do glass ionomer cements provide clinical outcomes comparable to those of resin cements for posterior zirconia crowns?
- Do marginal discoloration, marginal integrity, and biological complications differ between the cement systems?
- Do patient reported and clinician reported outcomes differ between the cementation procedures?
Researchers will compare zirconia crowns cemented with either a glass ionomer cement or a resin cement to evaluate differences in clinical outcomes.
Participants will:
- Receive posterior zirconia crowns fabricated according to standardized clinical procedures
- Be randomized to cementation with either a glass ionomer cement or a resin cement
- Undergo clinical examinations assessing crown survival, marginal adaptation, discoloration, caries, periodontal status, and wear
- Complete questionnaires regarding patient comfort and treatment experience
- Attend baseline and annual follow-up examinations for up to 10 years
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
Tooth damage has significant impact on a person's quality of life and damaged teeth should be treated to restore lost functions and prevent further damage. Loss of tooth substance can be restored by a direct (filling) or indirect restoration (artificial crown). These interventions differ in some operative aspects but share key challenges, particularly in achieving optimal adhesion to tooth substance to secure predictable retention and the integrity of the marginal seal.
Failure of the adhesive interface is a major determinant of restoration longevity and may manifest across patient-centered, biological, and technical outcomes.
Marginal degradation may result in discoloration, representing an early clinical indicator of interface breakdown that negatively affects patient satisfaction and may lead to a need for retreatment. Progressive marginal leakage facilitates bacterial access, increasing the risk of biological complications such as secondary caries and pulpal involvement.
Loss of retention represents a major technical complication, often requiring replacement of the restoration and contributing to cumulative loss of tooth structure over time.
Despite advances in restorative materials and adhesive systems, clinical outcomes remain variable, and the relative contribution of material properties, procedural complexity, and biological factors to long-term failure is not fully understood. In particular, the role of technique sensitivity and procedural complexity as independent determinants of restoration survival remains insufficiently characterized. Improved understanding of these interacting factors will enable more precise selection of restorative materials and cementation strategies.
This project will: (a) identify and quantify clinically relevant determinants of restoration failure, enabling improved prediction of restoration survival and patient satisfaction, (b) elucidate how interfacial degradation and technique sensitivity contribute to biological and technical complications, (c) aid clinical decision-making by guiding selection of materials and procedures based on their performance and complexity.
Tipo di studio
Iscrizione (Stimato)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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Skåne County
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Hörby, Skåne County, Svezia
- Sandin Dentalklinik
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Malmö, Skåne County, Svezia, 21118
- Tandläkare Le
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Need of one single crown on vital posterior tooth
- Speak and understand Swedish language
- Free from dental/oral disease; caries, periodontal disease
Exclusion Criteria:
- Only individuals who do not meet the inclusion criteria will be excluded.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
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Comparatore attivo: Resin cement
Tooth-supported zirconia crowns cemented with a resin-based cement
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Zirconia crowns cemented with resin cement
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Comparatore attivo: Glass-ionomer cement
Tooth-supported zirconia crowns cemented with a glass-ionomer cement
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Zirconia crowns cemented with glass-ionomer cement
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Clinical outcome of tooth-supported zirconia crowns from baseline to 1-year follow up
Lasso di tempo: Baseline and 1 year.
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Clinical performance of tooth supported zirconia crowns assessed using modified CDA criteria, including survival, success, biological complications, technical complications, marginal integrity, discoloration, and surface morphology.
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Baseline and 1 year.
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Clinical outcome of tooth-supported zirconia crowns from baseline to 3-year follow up
Lasso di tempo: Baseline and 3 years.
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Clinical performance of tooth supported zirconia crowns assessed using modified CDA criteria, including survival, success, biological complications, technical complications, marginal integrity, discoloration, and surface morphology.
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Baseline and 3 years.
|
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Clinical outcome of tooth-supported zirconia crowns from baseline to 5-year follow up
Lasso di tempo: Baseline and 5 years.
|
Clinical performance of tooth supported zirconia crowns assessed using modified CDA criteria, including survival, success, biological complications, technical complications, marginal integrity, discoloration, and surface morphology.
|
Baseline and 5 years.
|
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Clinical outcome of tooth-supported zirconia crowns from baseline to 10-year follow up
Lasso di tempo: Baseline and 10 years.
|
Clinical performance of tooth supported zirconia crowns assessed using modified CDA criteria, including survival, success, biological complications, technical complications, marginal integrity, discoloration, and surface morphology.
|
Baseline and 10 years.
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Change from Baseline in "Patient-reported Outcome Measurement" at 1 year
Lasso di tempo: Baseline and 1 year.
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Patient reported and operator reported outcomes will be assessed using structured questionnaires evaluating treatment comfort, clinical handling, and overall satisfaction.
Questionnaire scores range from 1 to 5, where higher scores indicate greater satisfaction and improved treatment experience.
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Baseline and 1 year.
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Change from Baseline in "Patient-reported Outcome Measurement" at 3 year
Lasso di tempo: Baseline and 3 year.
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Patient reported and operator reported outcomes will be assessed using structured questionnaires evaluating treatment comfort, clinical handling, and overall satisfaction.
Questionnaire scores range from 1 to 5, where higher scores indicate greater satisfaction and improved treatment experience.
|
Baseline and 3 year.
|
Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Christel Larsson, Ph.D., Malmö University
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie stomatognatiche
- Ferite e lesioni
- Malattie dei denti
- Lesioni ai denti
- Fratture dei denti
- Polimeri
- Sostanze macromolecolari
- Materiali biomedici e dentali
- Materiali fabbricati
- Tecnologia, industria e agricoltura
- Plastica
- Resine, sintetiche
- Cementi dentali
- Materiali dentali
- Cementi di resina
- Cementi di ionomero di vetro
Altri numeri di identificazione dello studio
- 2026-03170-01
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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-
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Repolar Pharmaceuticals OyPrinceton Consumer ResearchCompletatoSensibilizzazione della pelle | Irritazione della pelleRegno Unito
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