- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT02110550
Evaluation of a New Design of Crowns in the Posterior Teeth
Evaluation of IPS E.Max-CAD Endocrown in Molars Compared to the Conventional Design
Background: no randomized controlled trial has tried to compare treatment outcomes between the IPS.emmax endocrowns and the IPS.emmax conventional crowns .
Objective: to investigate the clinical performance of the IPS.emmax endocrowns and the IPS.emmax conventional crowns Design and setting: Parallel-groups randomized controlled trial on patients with one or more intensive damaged molars requiring crowning and being treated at the University of Damascus, Dental School in Damascus, Syria .All molars will be examined at the baseline assessment using a modified US Public Health Service (USPHS) criteria.
Participants: Incoming patients to the Fixed Prosthetic and Endodontic Departments will be examined to find any excessively damaged molars requiring crowning. Forty patients will be recruited according to specific inclusion criteria. Randomization will be performed using computer-generated tables; allocation will be concealed using sequentially numbered opaque and sealed envelopes.The included 40 patients will be analyzed (age range between 20-60 years). They will be randomly distributed into two groups with 20 patients in each group (1:1 allocation ratio).
Intervention: Excessively damaged and endodontically treated molars will be restored with IPS.emmax endocrowns or IPS.emmax crowns supported with composite core.
Main outcome measure: marginal adaptation and anatomic form will be investigated clinically and by apical radiographs at the baseline assessment using the modified (USPHS) at six assessment times during an 18-month observation period.
Assessor blinding will be employed.
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Studietype
Registrering (Faktiske)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
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-
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Damascus, Den syriske arabiske republikk, DM20AM18
- Department of Fixed Prosthodontics, University of Damsacus
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Damascus, Den syriske arabiske republikk, DM20AM18
- University of Damascus Dental School
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Patients between 20 to 60 years old
- Good oral hygiene
- Gingival index (GI) equal 0
- Plaque index (PI) equal 0 or 1
- Primary acceptation and commitment to the trail
Inclusion criteria of molars:
- Two remaining axial walls at least.
- 0.5 mm above the gingival line at least for damaged axial walls.
- Good endodontic treatment and apical seal
- First and second upper and lower molars only.
- Against teeth could be natural or crowned.
Exclusion Criteria:
- Patients with an open bite or cross bite.
- Bruxism
- Periodontitis
- Gingival hyperplasia
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Trippel
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
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Ingen inngripen: IPS.emmax crown
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Eksperimentell: IPS.emmax endocrown
Patients with excessively undermined and endodontically treated molars will receive the IPS.emmax endocrown as the restoration of choice.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Change in Marginal Adaptation
Tidsramme: at 3 months (T1), 6 months (T2), 9 months (T3), 12 months (T4), 15 months (T5), and 18 months (T6) following application
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The presence of marginal adaptation means that the restoration margins cannot be distinguished, the probe cannot find a step between the margins and the surrounding tissue, and no discoloration visible.
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at 3 months (T1), 6 months (T2), 9 months (T3), 12 months (T4), 15 months (T5), and 18 months (T6) following application
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Change in the Anatomic Form
Tidsramme: at 3 months (T1), 6 months (T2), 9 months (T3), 12 months (T4), 15 months (T5), and 18 months (T6) following application
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The anatomic form is considered satisfactory when the crown has a correct contour with tight proximal contact, no worn facets on restorations and no worn facets on opposing teeth.
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at 3 months (T1), 6 months (T2), 9 months (T3), 12 months (T4), 15 months (T5), and 18 months (T6) following application
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Change in the Retention Status
Tidsramme: at 3 months (T1), 6 months (T2), 9 months (T3), 12 months (T4), 15 months (T5), and 18 months (T6) following application
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Retention loss is considered when the crown becomes loose or mobile.
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at 3 months (T1), 6 months (T2), 9 months (T3), 12 months (T4), 15 months (T5), and 18 months (T6) following application
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Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Rana Dallool, DDS, University of Damascus Dental School
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Bernhart J, Brauning A, Altenburger MJ, Wrbas KT. Cerec3D endocrowns--two-year clinical examination of CAD/CAM crowns for restoring endodontically treated molars. Int J Comput Dent. 2010;13(2):141-54. English, German.
- Biacchi GR, Basting RT. Comparison of fracture strength of endocrowns and glass fiber post-retained conventional crowns. Oper Dent. 2012 Mar-Apr;37(2):130-6. doi: 10.2341/11-105-L. Epub 2011 Sep 26.
- Bindl A, Mormann WH. Clinical evaluation of adhesively placed Cerec endo-crowns after 2 years--preliminary results. J Adhes Dent. 1999 Autumn;1(3):255-65.
- Fischer H, Marx R. Fracture toughness of dental ceramics: comparison of bending and indentation method. Dent Mater. 2002 Jan;18(1):12-9. doi: 10.1016/s0109-5641(01)00005-7.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
- UDDS-FixPro-01-2014
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