Clinical Performance of 3D-Printed vs. Milled Endocrowns

Gulcan COSKUN AKAR33 enrolled

Overview

The goal of this clinical trial is to examine the durability of endocrowns, created using various materials and manufacturing techniques with a fully digital workflow, and their ability to maintain functionality and aesthetics in the oral cavity. The main questions it aims to answer were does effect of different materials on clinical success?

Based on the power analysis, it was determined that restorations would be applied to 11 teeth in each of the three material groups (lithium-disilicate reinforced glass-ceramic, polymer-infiltrated ceramic, and 3D-printed permanent hybrid resin). A total of 33 teeth received endocrown restorations. The digital impressions of the patients receiving endocrown restorations were recorded using an intraoral optical scanner and sent to a specialised dental laboratory. For two of the groups (lithium disilicate-reinforced glass-ceramic, polymer-infiltrated ceramic), restorations were fabricated using block milling, while for the third group (permanent hybrid resin), restorations were produced through 3D printing. The restorations were cemented adhesively. The restorations were evaluated using the Modified FDI and Modified USPHS criteria at baseline (0) and at the 6-month follow-up, and the data were subjected to statistical analysis. At the 6-month evaluation, no statistically significant difference in colour match was observed for any of the Modified USPHS criteria. All endocrowns produced with the three different materials survived and showed clinical success at the 6 and 24 months follow-up. Nevertheless, additional clinical studies with extended follow-up durations are required.

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Gross Material Loss in Endodontically Treated Upper and Lower Molars No Systemic Infection Gingival Steps Should be at Gum Level

Interventions

endocrownsOTHER

IPS Empress CAD Vita Enamic VarseoSmile Crown Plus

Eligibility

Sex: ALLMin age: 18 YearsMax age: 90 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Must be a lower or upper molar tooth * Must be periodontal healthy * There must be at least two axial walls in the relevant tooth * Gingival steps should be at gum level * There must be neighboring teeth mesial and distal to the relevant tooth. * The place where it occludes must be the opposing tooth and the tooth must be a natural or filled tooth without a prosthesis. * No systemic acut or chronic conditions (Thyroid disease, Alzheimer's Disease, Insulin dependent diabetes, etc.) Exclusion Criteria: * Inadequate oral hygiene, bleeding on probing, pocket deeper than 3 mm mobility presence * Sensitivity to percussion after root canal treatment * Insufficient enamel tissue remaining in the relevant tooth * Presence of radiographically abnormal periodontal space * Teeth with inadequate bone support * Teeth with root resorption and fracture

Locations (1)

Ege University

Izmir, Turkey (Türkiye)

Outcomes

Primary Outcomes

Clinical Outcomes

Restorations were checked clinically at the time of delivery and 6 months later. A 0.15 mm probe (DEPPELER 150EX, Rolle, Switzerland) was used for the controls. Modified USPHS were used in the evaluations. The modified USPHS criteria were recorded as Alpha (A), Bravo (B), Charlie (C), Delta (D), and the modified FDI criteria were recorded as very good, good, adequate, unsatisfactory, and failed. Marginal Discolouration, Marginal Integrity, Surface Texture, Wear, Postoperative Sensitivity and Recurrent Caries as Modified USPS Criteria were evaluated. In the study, the headings of the result measurement tables will be created as follows: Comparison of Baseline Modified USPHS Values According to Groups

Time frame: 24 month

Data from ClinicalTrials.gov

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