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Clinical Outcomes of 3D Printed and Milled Complete Dentures

5 giugno 2026 aggiornato da: Dentsply Sirona Implants and Consumables

An Open, Single-center, Prospective, Randomized, Two-armed, Interventional, Post-market Clinical Investigation of 3D Printed Complete Dentures and Milled Complete Dentures During a 5-year Follow-up Period

This is a two-armed, single-center clinical study evaluating performance, efficacy and safety of three dimensional (3D) printed complete dentures and milled complete dentures during a 5-year follow-up period. The primary objective of this clinical investigation is to evaluate survival rate, i.e. subjects with survived dentures in both upper and lower jaw, of 3D printed complete dentures and milled complete dentures after 1 year (in each of the groups separately).

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

68

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

  • Stati Uniti
    • North Carolina
      • Chapel Hill, North Carolina, Stati Uniti, 27599
        • Adams School of Dentistry
        • Contatto:
          • Vivia Sequeira

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

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Adult aged 18 years or above at time of informed consent.
  • Subject willing to participate in the clinical investigation and able to understand the content of the clinical investigation.
  • Subject willing to comply with investigational related procedures and to return for follow-up visits for a period of 5 years.
  • Subject has signed and dated the informed consent form.
  • Subjects in need of complete dentures in maxilla and mandible.
  • Prosthodontic Diagnostic Index (PDI) Completely edentulous classification (Class 1-3).
  • History of edentulism of at least 1 year.

Exclusion Criteria:

  • Known allergy or hypersensitivity to any of the components.
  • Subjects with significant systemic health issues or chronic conditions (American Society of Anesthesiologists (ASA) class 3-6 ).
  • Known pregnancy at time of enrolment.
  • Subjects unlikely to comply with investigational procedures, or unlikely to come back for follow-up visits, as judged by the Investigator.
  • Previous enrolment in the present clinical investigation.
  • Involvement in the planning and conduct of the clinical investigation (applies to both Dentsply Sirona personnel and the clinical investigation site).

  • PDI Completely edentulous classification (Class 4)

    • Presence of severely atrophied ridge.
    • Presence of severe ridge undercuts.
    • Clinically severe Xerostomia.
    • Absence of hard or soft tissue pathology that precludes denture therapy.
    • Maxillofacial defects.
  • Uncontrolled pathological process in the oral cavity, as judged by the Investigator.
  • Participation in another clinical investigation that may interfere with the present clinical investigation.

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: Terapia di supporto
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 3D printed dentures
3D printed denture bases and 3D printed denture teeth.
Dispositivo: Lucitone Digital Print

Consisting of the following parts:

  • Lucitone Digital Print 3D Denture Base.
  • Lucitone Digital Interpenetrating Polymer Network (IPN) 3D Premium Tooth.
  • Lucitone Digital Print Denture System Accessories
Sperimentale: Milled dentures
Milled denture bases and denture teeth.
Dispositivo: Lucitone Digital Fit

Consisting of the following parts:

  • Lucitone Digital Fit Denture Discs.
  • Dentsply Sirona Multilayer Polymethyl Methacrylate (PMMA) Discs.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Denture survival rate
Lasso di tempo: One year after baseline (baseline = final denture insertion performed within 6-months from day 1)
Restorations still in function after 1 year.
One year after baseline (baseline = final denture insertion performed within 6-months from day 1)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Denture survival rate
Lasso di tempo: 3 and 6 months, and 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Restorations still in function after 3 and 6 months, and 2, 3, 4 and 5 years.
3 and 6 months, and 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture success
Lasso di tempo: 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)

A denture will be considered successful if all the following criteria are fulfilled:

Absence of major technical complications.

Absence of major biological complications.

Functional occlusion and mastication, assessed by clinical examination and OHIP-EDENT.

  • Assessed by OHIP-EDENT - Q1 from OHIP: "Have you had difficulty chewing any foods because of problems with your teeth, mouth or dentures?", where score 0-2 would be considered successful (0=never, 1=hardly ever, 2 = occasionally).

Absence of patient reported discomfort, assessed by OHIP-EDENT.

  • Assessed by all questions in Physical pain section of OHIP-EDENT - Q4 "Have you had painful aching in your mouth?", Q5 "Have you found it uncomfortable to eat any foods because of problems with your teeth, mouth or dentures?", Q6 "Have you had sore spots in your mouth?, Q7 "Have you had uncomfortable dentures?", where score 0-1 would be considered successful (0=never and 1=hardly ever).
3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture adaptation accuracy
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)
Evaluation of accuracy of 3D printing and milling technology will be made using Geomagic Software at time of final denture insertion. The denture intaglio at insertion will be compared with the final impression as reference scan.
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture retention force
Lasso di tempo: 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Retention force of the dentures will be evaluated by applying a dynamometer gauge at the following locations: Post dam, Tuberosities and retromolar pads.
3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Technical Complications
Lasso di tempo: At baseline, 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)

Complications will be recorded and assessed as either:

  • Major complications (requiring laboratory intervention to correct - fracture, lab reline, etc.).
  • Minor complications (requiring chairside adjustment - sore spots, occlusal discrepancies, etc.).
At baseline, 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Biological Complications
Lasso di tempo: At baseline, 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Occurrence of biological complications. Biological complications will be evaluated by recording major and minor biological complications. The evaluation of biological complications will be derived from the adverse event (AE)/adverse device effect (ADE) sections of the Case Report Form.
At baseline, 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
OHIP-EDENT Questionnaire.
Lasso di tempo: 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Quality of Life through Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT) Questionnaire completed by participating subjects. OHIP-EDENT contains 19 questions, divided into six domains: Functional limitations, Physical pain, Psychological discomfort, Physical disability, Psychological disability and Handicap. Response categories for all questions: 4 = very often; 3 = fairly often; 2 = occasionally; 1 = hardly ever; 0=never, i.e. lower scores corresponds with higher quality of life.
3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture quality assessed via volumetric loss
Lasso di tempo: At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Serial comparison of follow-up denture scans using TRIOS Compare with post insertion adjusted denture scan as reference. Volumetric loss measured in mm3.
At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture quality assessed via maximum vertical loss.
Lasso di tempo: At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Serial comparison of follow-up denture scans using TRIOS Compare with post insertion adjusted denture scan as reference. Maximum vertical loss measured in μm.
At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture quality assessed by discolouration (delta E) at a central incisor (#8).
Lasso di tempo: At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Discolouration (intrinsic or interfacial) measured with spectrophotometer. The colour at a central incisor (#8) and the denture just above #8 will be measured.
At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture quality assessed by occlusion (bite position).
Lasso di tempo: At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Number of occlusal contacts using articulating paper will be documented.
At baseline and 3 and 6 months, 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture aesthetics - Appropriateness of tooth shape.
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)

Appropriateness of tooth shape assessed by the following Yes/No question:

Appropriate Tooth Shape to match facial aesthetics?
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture aesthetics - Appropriateness of tooth size.
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)

Appropriateness of tooth size assessed by the following Yes/No question:

Appropriate Tooth Size to match facial aesthetics?
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture aesthetics - Appropriateness of tooth arrangement
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)

Appropriateness of tooth arrangements assessed by the following Yes/No questions:

  • Overall tooth position, angulation and alignment that appears natural and pleasing?
  • Posterior tooth alignment to maintain adequate buccal corridors?
  • Dental midline aligned in relation to facial midline?
  • Appropriate orientation of occlusal plane in relation to patient's smile line and facial reference lines?
  • Sufficient horizontal overlap?
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture aesthetics - Appropriateness of tooth colour / colour match
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)

Appropriateness of tooth colour /colour match assessed by the following Yes/No questions:

  • Appropriate Tooth Shade to suit the naturalness of the patient's skin tone?
  • Appropriate Gingival Shade, translucency and colour characterisation to suit the naturalness of the patient's original gingiva?
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture aesthetics - Appropriateness of Denture base
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)

Appropriateness of denture base assessed by the following Yes/No questions:

  • Appropriate tooth to gingival display?
  • Appropriate physical characterisation (contours) of denture base that appears natural and pleasing?
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Denture aesthetics - Lip support
Lasso di tempo: At baseline (baseline = final denture insertion performed within 6-months from day 1)

Lip support assessed by the following Yes/No questions:

  • Anterior tooth alignment to provide adequate lip support when viewed from the facial profile?
  • Appropriate arch form to allow for natural facial expressions and phonetics?
  • Thickness of denture flange for adequate lip support and facial expressions?
At baseline (baseline = final denture insertion performed within 6-months from day 1)
Occurrence of Adverse Events, Adverse Device Effects, and Device Deficiencies during the clinical investigation.
Lasso di tempo: From Day 0 up to completion of the 5-year follow-up visit, on average 5 years and 3 months.
Adverse Events, Adverse Device Effects, and Device Deficiencies spontaneously reported, and collection at each clinical investigation visit.
From Day 0 up to completion of the 5-year follow-up visit, on average 5 years and 3 months.
Patient Satisfaction
Lasso di tempo: 3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)

Patient satisfaction including aesthetics as evaluated by patient questionnaire including the following questions:

  1. Are you overall satisfied with your dentures?
  2. Are your satisfied with the comfort of your dentures?
  3. Are you satisfied with the aesthetics of your dentures?
  4. Are you satisfied with your ability to speak when wearing your dentures?
  5. Are you satisfied with the fit of your dentures?

Patient satisfaction with dentures will be evaluated using a likert scale, ranging from 0 to 10 for each of above questions. The likert scale representing a spectrum of feelings between extremes with 0= Very unsatisfied and 10= Very satisfied. Patients will rate their assessment by marking a number corresponding to their feelings at the time. A low score represents a high degree of dissatisfaction, and a high score a high degree of satisfaction
3 and 6 months, and 1, 2, 3, 4 and 5 years after baseline (baseline = final denture insertion performed within 6-months from day 1)

Collaboratori e investigatori

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

Sponsor

Dentsply Sirona Implants and Consumables

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)

30 maggio 2026

Completamento primario (Stimato)

30 ottobre 2028

Completamento dello studio (Stimato)

30 ottobre 2032

Date di iscrizione allo studio

Primo inviato

30 marzo 2026

Primo inviato che soddisfa i criteri di controllo qualità

7 maggio 2026

Primo Inserito (Effettivo)

14 maggio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

8 giugno 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

5 giugno 2026

Ultimo verificato

1 giugno 2026

Maggiori informazioni

Termini relativi a questo studio

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • C-LA-24-020

Piano per i dati dei singoli partecipanti (IPD)

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

NO

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

Sì

prodotto fabbricato ed esportato dagli 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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