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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. června 2026 aktualizováno: 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.

Přehled studie

Postavení

Zatím nenabíráme

Detailní popis

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.

Typ studie

Intervenční

Zápis (Odhadovaný)

50

Fáze

  • Nelze použít

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dítě
  • Dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

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.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Singl

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: Hybrid ceramic group
indirect restoration (inlay design) using CAD/CAM Fabricated Hard Hybrid Ceramic blocks
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.
Aktivní komparátor: Composite Resin group
indirect restoration (inlay design) using CAD/CAM Fabricated from Composite Resin Blocks
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.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Marginal Adaptation
Časové okno: -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

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
color match
Časové okno: -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
Časové okno: -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
Časové okno: -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
Časové okno: -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
Časové okno: -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
Časové okno: -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

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Odhadovaný)

1. srpna 2026

Primární dokončení (Odhadovaný)

1. srpna 2028

Dokončení studie (Odhadovaný)

1. listopadu 2028

Termíny zápisu do studia

První předloženo

10. června 2026

První předloženo, které splnilo kritéria kontroly kvality

10. června 2026

První zveřejněno (Aktuální)

15. června 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

16. června 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

13. června 2026

Naposledy ověřeno

1. června 2026

Více informací

Termíny související s touto studií

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Studuje produkt zařízení regulovaný americkým úřadem FDA

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