Prosthetic Complications in Full-arch Screw-retained Implant Restorations Using Monolithic Zirconia Versus Titanium Frameworks: A Randomized Clinical Trial
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Studietype
Studietype
Registrering (Antatt)
Registrering
Fase
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
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Cairo, Egypt, 11553
- Rekruttering
- Faculty of Dentistry - Cairo University
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Ta kontakt med:
- Faculty of Dentistry - Cairo University
- Telefonnummer: 0020223642705
- E-post: dentmail@dentistry.cu.edu.eg
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Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Beskrivelse
Inclusion Criteria:
- Aged 18 years or older.
- Able to understand the study procedures and provide written informed consent.
- In good general health, classified as American Society of Anesthesiologists (ASA) Physical Status Class I or II.
- Completely edentulous in the arch to be treated (maxilla and/or mandible).
- A candidate for a full-arch, screw-retained implant-supported prosthesis, requiring 4 to 6 implants in the treatment arch.
- Sufficient bone volume at planned implant sites to place implants of at least 3.5mm in diameter and 8mm in length.
- Adequate crown height space (15-22 mm) for a fixed prosthesis.
- A zone of keratinized mucosa at the crest of the ridge measuring at least 2 mm in width.
- Opposing arch is fixed full-arch implant-supported prosthesis.
- Demonstrates acceptable oral hygiene and the motivation to maintain it.
Exclusion Criteria:
Medical contraindications:
- Uncontrolled diabetes (HbA1c > 7.0%).
- History of radiotherapy in the head and neck region.
- History of intravenous bisphosphonate therapy.
- Immunosuppressed or immunocompromised status.
- Any other uncontrolled systemic disease that constitutes a contraindication for oral surgery.
Behavioral Factors:
- Heavy smoking, defined as consumption of more than 10 cigarettes per day.
- Presence of parafunctional habits (e.g., bruxism, clenching) as diagnosed by clinical examination.
Local Oral Factors:
- Active, untreated periodontal disease in any remaining dentition.
- Presence of acute oral infection or pathology at the intended surgical site.
- Crown height space less than 15 mm or more than 22 mm.
- Insufficient keratinized mucosa (< 2 mm width) that cannot be corrected with a simple surgical procedure prior to implant placement.
General:
- Pregnancy or lactation.
- Participation in another interventional clinical trial.
- Perceived inability to comply with the study protocol and follow-up schedule.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Ingen (Open Label)
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
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Eksperimentell: Monolithic zirconia framework
The prosthesis is a one-piece, full-arch framework milled from a single, monolithic zirconia blank.
It includes the infrastructure, prosthetic teeth, and gingival contours.
The prosthesis is screw-retained directly to multi-unit abutments.
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Intervention: Screw-Retained Monolithic Zirconia Prosthesis
Andre navn:
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Aktiv komparator: CNC-milled titanium framework and zirconia superstructure
The prosthesis consists of two parts: A CNC-milled titanium framework, and a CNC-milled zirconia superstructure that is cemented onto the framework. The titanium framework is screw-retained directly to multi-unit abutments. The zirconia superstructure is permanently cemented to the framework with resin cement. |
The prosthesis consists of two parts: A CNC-milled titanium framework, and a CNC-milled zirconia superstructure that is cemented onto the framework.
The titanium framework is screw-retained directly to multi-unit abutments.
The zirconia superstructure is permanently cemented to the framework with resin cement.
Andre navn:
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Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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Prosthetic complications
Tidsramme: 1 year
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The primary outcome of this study is the incidence of prosthetic complications over 12-month follow-up period.
A prosthetic complication is defined as any mechanical or technical issue affecting the prosthesis that requires clinical intervention.
This will be assessed through a standardized clinical examination conducted by a calibrated examiner.
The outcome for each participant will be recorded as a binary variable (Yes/No).
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1 year
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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Oral Health-Related Quality of Life (OHRQoL)
Tidsramme: 1 year
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The secondary outcome of this study is the change in Oral Health-Related Quality of Life (OHRQoL) over the 12-month follow-up period.
This will be measured using the validated Arabic version of the 5-item Oral Health Impact Profile (OHIP5-Ar) questionnaire (Alhajj et al., 2019).
The questionnaire consists of 5 questions, each rated on a Likert scale (e.g., 0 = Never, 1 = Hardly ever, 2 = Occasionally, 3 = Fairly often, 4 = Very often).
The total score ranges from 0 to 20, with a higher score indicating a greater negative impact on OHRQoL.
The change from baseline to 3, 6 and 12 months will be analyzed.
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1 year
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Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Studiestart
Primær fullføring (Antatt)
Primær fullføring
Studiet fullført (Antatt)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
Andre studie-ID-numre
- 09062026
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