- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT04475913
Digital vs Analog Impression in Cases of All-on-4 - Prosthesis
In a Post -Covid-19 World, What is the Clinical Influence of Digital vs Analog Impression in Cases of All-on-4 - Prosthesis ?
Fifty six patients were randomly enrolled in the study. Participants were randomly stratified into two control groups and two test groups, from which conventional pick up and digital impressions were made respectively. Patients of group 1 (CIG Axial) and 3 (DIG Axial) received 4 axial implants whereas, group 2 patients (CIG Tilted), and group 4 (DIG Tilted) received two anterior axial implants and two distal tilted implants.
All participants received hybrid dentures. Bone loss, implant loss, maintenance of prosthesis were evaluated at 6m,12m, and 24 months follow up period.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
-
Giza, Egitto, 12451
- OctoberUMSA
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- completely edentulous patients with age range from 50-65 years.
- physically and psychologically eligible participants for implants placement.
- adequate bone to receive 4 interforaminal implants.
Exclusion Criteria:
participants were excluded if
- medical conditions that precludes implants placement
- smokers
- patients suffering from any parafunctional habits
Piano di studio
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 |
|---|---|
|
Comparatore attivo: (CIG Axial)
received 4 axial implants and conventional impression
|
patients received 4 axial implants and digital impression
|
|
Sperimentale: (DIG Axial)
received 4 axial implants and digital impression
|
received two anterior axial implants and two distal tilted implants, and digital impression
patients received 4 axial implants and conventional impression
|
|
Comparatore attivo: CIG Tilted
received two anterior axial implants and two distal tilted implants, and conventional impression
|
received two anterior axial implants and two distal tilted implants, and digital impression
|
|
Sperimentale: (DIG Tilted)
received two anterior axial implants and two distal tilted implants, and digital impression
|
patients received 4 axial implants and digital impression
received two anterior axial implants and two distal tilted implants, and conventional impression
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
implant loss
Lasso di tempo: 24 months
|
The implants were considered surviving if they were clinically stable and functioning without any mobility.
Failure was defined removal of implants due to loss of integration, pain, implant mobility, paraesthesia, neuropathies or psychological reasons.
Calculation of the estimated failure rate was performed by dividing the number of implant failures by the total exposure time of the implant.
The total exposure time is the interval of time the implants could be followed for the entire observation time or up to failure of the implants that were lost during the follow-up period.
|
24 months
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
crestal bone loss
Lasso di tempo: 24 months
|
Standardized periapical radiographs with long cone paralleling technique using film holders were used for the assessment of crestal bone loss.
The loss of marginal bone relative to the implant shoulder at the mesial and distal of each implant was measured in mm and then the mean was calculated and statistically estimated.
A digital intraoral imaging system was used (Digora phosphor plate reader, Soredex Tuusula, Finland).
All the radiographs were scanned and then uploaded into the computer for assessing bone loss over time.
The "ImageJ" software was used to take the measurements on the computer screen.
Postoperative radiographs with the implants placed at the crest of the bone were compared with the 6,12 and 24 m radiographs.
|
24 months
|
Altre misure di risultato
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
maintenance
Lasso di tempo: 24 months
|
During the follow-up period, prosthodontic (mechanical) complications for the four groups were registered and calculated according to the following events: number of screw loosening or screw fracture of the abutment, number of screw loosening or screw fracture of the prosthesis, number of framework fracture, fractured acrylic resin, number of prosthetic teeth fracture and loss of cover of access hole.
|
24 months
|
Collaboratori e investigatori
Investigatori
- Investigatore principale: Dina Elawady, Lecturer
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
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
Altri numeri di identificazione dello studio
- 5
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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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