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Clinical Performance of CAD/CAM Hard Hybrid Ceramic Inlays Versus Resin Composite Inlays in Vital Molars With Extensive Occluso-Proximal Cavities

13 giugno 2026 aggiornato da: Sayed Ahmed Sayed Karim, Cairo University

Clinical Performance of CAD/CAM Hard Hybrid Ceramic Inlays Versus Resin Composite Inlays in Vital Molars With Extensive Occluso-Proximal Cavities: Two-Year Randomized Clinical Trial

this study aims to compare the clinical performance of hard hybrid ceramics and composite resin indirect restorations fabricated by CAD/CAM technology for the vital teeth with occluso-proximal cavities. the clinical performance assessed include marginal adaptation primarily and in addition to Color match, marginal discoloration, aesthetic anatomic form, recurrent caries and restoration fracture and post-operative hypersensitivity. the clinical performance will be assessed after the restoration cementation, after 6, 12, 18 and 24 months.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

A wide variety of materials is now available for the fabrication of indirect restorations used to manage extensive carious lesions, including high-strength ceramics, hybrid ceramics, and resin-composite blocks. Each material offers distinct advantages in strength, wear resistance, aesthetics, and bonding performance, thereby expanding treatment options for severely compromised posterior teeth. However, these differences in mechanical and optical behavior, marginal adaptation, and long-term durability under functional stresses complicate clinical material selection.

Limited data is available comparing the clinical performance of these materials, particularly in large cavities in these regions. More information is needed on how they prevent post-treatment sensitivity, maintain edge quality, and resist discoloration, wear, and fractures.

Though short-term studies indicate excellent survival rates and aesthetic results for CAD/CAM hybrid ceramic inlays (more than 90% survival after two years), and systematic reviews imply that CAD/CAM resin composite inlays match ceramic restorations (success rates ranging from 85.7% to 100% for composites versus 93.3% to 100% for ceramics). There is a lack of direct clinical comparisons between these two material types in vital molars with occluso-proximal cavities. Much of the existing research is constrained to onlay designs or mixed-material groups, creating a significant gap in understanding which CAD/CAM block type delivers superior long-term performance for inlay restorations in vital teeth.

Tipo di studio

Interventistico

Iscrizione (Stimato)

50

Fase

  • Non applicabile

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Bambino
  • Adulto

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Systematically healthy male or female subjects aged 16 to 50 years.
  • Patients with good oral hygiene.
  • Presence of a single vital molar with coronal destruction due to caries, defined as radiographic evidence of caries involving more than 50% of the total dentin thickness with loss of at least one proximal wall.
  • Cavitary preparation involving loss of at least one proximal walls (mesial and/or distal), with intact buccal and lingual walls, and all cavosurface margins located in enamel.
  • Presence of functional opposing teeth in stable occlusion

Exclusion Criteria:

  • Presence of systemic diseases (e.g., uncontrolled diabetes, immune disorders).
  • Current pregnancy or lactation.
  • Documented allergy to resin-based composites or adhesive systems.
  • Evidence of pulpal necrosis or previous endodontic treatment in the target tooth.
  • Presence of cracks or fractures involving the tooth structure.
  • Active localized or generalized periodontal disease.
  • Evidence of parafunctional habits, including bruxism or clenching.
  • High caries risk.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Hybrid ceramic group
indirect restoration (inlay design) using CAD/CAM Fabricated Hard Hybrid Ceramic blocks
Altro: hybrid ceramics
after caries removal, inlay cavity preparation and immediate dentin sealing, the cavities were scanned using intraoral scanner and the restoration designed and milled using Hard Hybrid Ceramic Blocks. the intaglio surface was air-abraded with 50 μm Al2O3 for 10-15 seconds. SHOFU HC Primer will be applied to the hybrid-ceramic group.
Comparatore attivo: Composite Resin group
indirect restoration (inlay design) using CAD/CAM Fabricated from Composite Resin Blocks
Altro: Composite resin
after caries removal, inlay cavity preparation and immediate dentin sealing, the cavities were scanned using intraoral scanner and the restoration designed and milled using Composite Resin Blocks. the intaglio surface was air-abraded with 50 μm Al2O3 for 10-15 seconds.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Marginal Adaptation
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
color match
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
marginal discoloration
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
aesthetic anatomic form
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
recurrent caries
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
restoration fracture
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
Post-operative hypersensitivity
Lasso di tempo: -baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation
measured using modified United States Public Health Service (USPHS) criteria scored as Alpha, Bravo, Charlie, Delta (Alpha score is the best and Delta is the worst).
-baseline (after the restoration cementation) -6 months after restoration cementation -12 months after restoration cementation -18 months after restoration cementation -24 months after restoration cementation

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Cairo University

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Pubblicazioni generali

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 agosto 2026

Completamento primario (Stimato)

1 agosto 2028

Completamento dello studio (Stimato)

1 novembre 2028

Date di iscrizione allo studio

Primo inviato

10 giugno 2026

Primo inviato che soddisfa i criteri di controllo qualità

10 giugno 2026

Primo Inserito (Effettivo)

15 giugno 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

16 giugno 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

13 giugno 2026

Ultimo verificato

1 giugno 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • CairoU-Hybrid Ceramic Inlays

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

INDECISO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

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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