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

Cairo University (CU)

Status: Not yet enrolling

Conditions: Badly Decayed Molars

Treatments: Other: CAD/Cam milled onlays; Other: 3D printed onlays

Study type: Interventional

Funder types: Other

Identifiers

NCT06774560

3DP_CAD/CAMM

Details and patient eligibility

About

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.

Enrollment: 50 estimated patients

Sex: All

Ages: 25 to 45 years old

Volunteers: No Healthy Volunteers

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.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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50 participants in 2 patient groups

CAD/CAM milled onlays

Active Comparator group

Description:

CAD/CAM has had a lasting impact on the dental market for decades. Its clinical reliability compared to any other dental material has been well documented. Several clinical studies proved its high clinical performance and survival rate. As CAD/CAM systems have become established in producing indirect restorations, it is considered the gold standard of digital manufacturing technology in dentistry.

Treatment:

Other: CAD/Cam milled onlays

3D printed onlays

Experimental group

Description:

3D-printed restorations have shown several advantages. Some studies have shown that the edge and internal gap values of 3D printing restorations are significantly lower than those of milling restorations.

Treatment:

Other: 3D printed onlays