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Not yet recruiting NCT06774560

Clinical Evaluation of 3D Printed Versus CAD/CAM Milled Onlays

No phase Interventional Badly Decayed Molars

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: CAD/Cam milled onlays, 3D printed onlays.
Who it may be relevant to
Registry conditions: Badly Decayed Molars. Basic parameters: 25 years — 45 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Center list to be confirmed — check the primary protocol.
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Clinical Evaluation of 3D Printed Versus CAD/CAM Milled Onlays Over a Period of One Year: a Randomized Clinical Trial

Overview

The digital workflow in dentistry has proven in the past decades to be a time-efficient, multifunctional, effortless, and accessible approach. The inherited shortages milling machines represented by the incapability to produce accurate complex hollow structures may give preference to modern 3D ceramic printing. Computer-aided-design/computer-aided-manufacturing (CAD/CAM) in dentistry is a digital subtractive approach for manufacturing indirect restorations. Nevertheless, waste materials and milling burs wearing are considered as key disadvantages of CAD/CAM technology, and are the main drive to improve 3D printing technology (additive manufacturing) as the latter has shown considerable efficiency in minimising wasted materials. Although additive manufacturing has been known since the 1980s, its application in dentistry is relatively new and not fully studied with limited research and in vivo studies on their clinical performance.

Interventions

  • Other CAD/Cam milled onlays
    The digital workflow in dentistry has proven in the past decades to be a time-efficient, multifunctional, effortless, and accessible approach. The inherited shortages milling machines represented by the incapability to produce accurate complex hollow structures may give preference to modern 3D ceramic printing. Computer-aided-design/computer-aided-manufacturing (CAD/CAM) in dentistry is a digital subtractive approach for manufacturing indirect restorations. Nevertheless, waste materials and mil
  • Other 3D printed onlays
    3D printing technologies are developing more intensively in dentistry as this technology has the capacity to produce shapes or models with high accuracy and in a short time. This method of fabrication takes less time and money and saves on materials compared to CAD/CAM. Although it seems that digital manufacturing technology has made great changes in the restorative dentistry field, this technology is still not fully in use. This is possibly because of the lack of studies and research on this t

Primary outcome measures

  • Fracture [Time frame: One Year]
Secondary outcome measures (7)
  • Retention [Time frame: One Year]
  • Marginal adaptation [Time frame: One Year]
  • Marginal discoloration [Time frame: One Year]
  • Secondary caries [Time frame: One Year]
  • Post-operative hypersensitivity [Time frame: One Year]
  • Surface texture [Time frame: One Year]
  • Anatomic form [Time frame: One Year]

Eligibility criteria

Inclusion criteria

Age: 25-45 years.

  • Males or females.
  • Participants with carious vital ower molars indicated for onlay (one or two missing cusps)
  • Patients with at least 20 teeth under occlusion.
  • Good oral hygiene.
  • Co-operative patients approving to participate in the trial.
  • Have sufficient cognitive ability to understand consent procedures.

Exclusion criteria

  • Participants with parafunctional habits or bruxism.
  • Participants with systemic diseases or disabilities that may affect participation.
  • Heavy smoking.
  • Pregnancy.
  • Lack of compliance.
  • Severe or active periodontal disease.
  • Cognitive impairment.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Double blind
Primary purpose
Treatment

Study locations

Center list to be confirmed — check the primary protocol.

Identifiers

NCT: NCT06774560 · 3DP_CAD/CAMM

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗