Evaluation of Layered Zirconia and Zirconia-Reinforced Lithium Disilicate Crowns

Comparative Clinical Evaluation of Layered Zirconia and Zirconia-Reinforced Lithium Disilicate Crowns: A Randomized Controlled Trial - NIL

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2026/01/102245

Enrollment

120

Registered

2026-01-28

Start date

Unknown

Completion date

Unknown

Last updated

2026-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: zirconia-reinforced lithium disilicate crown.: These are a newer restoration offer enhanced aesthetic properties and better bonding tooth structure Control Intervention1: layered zircon

Eligibility

Inclusion criteria

Inclusion criteria: Adults 18 60 years requiring single-unit posterior or anterior crowns with written consent Adequate occlusal clearance for material thickness Good oral hygiene and periodontal health No history of parafunctional habits

Exclusion criteria

Exclusion criteria: Severe bruxism or clenching Patients with gingivitis and periodontitis Heavy occlusal loads or malocclusion Patients with systemic conditions affecting healing e.g. uncontrolled diabetes, osteoporosis History of allergic reactions to ceramic materials

Design outcomes

Primary

Measure	Time frame
Fracture/chipping rate of the crowns Survival rate over the study period Marginal adaptation and retention Timepoint: At 6 months, 1 year, 2 years	—

Secondary

Measure	Time frame
Patient satisfaction (measured using a Visual Analog Scale) Colour stability and translucency over time Wear resistance and antagonist tooth wear Periodontal health around restorations (gingival index, plaque index) Timepoint: At 6 months, 1 year, 2 years	—

Countries

India

Contacts

Public ContactDr Prasad N Masske

PIMS-DU Loni

drprasadmhaske@gmail.com9022776222

Outcome results