Clinical Outcomes of Zirconia-reinforced Lithium Silicate Partial Coverage Crowns Compared to Lithium Disilicate Partial Coverage Crowns

Cairo University (CU)

Status: Completed

Conditions: Partial Coverage Restoration

Treatments: Other: IPS e.max; Other: Vita Suprinity

Study type: Interventional

Funder types: Other

Identifiers

NCT02861729

CEBD-CU-2016-08-177

Details and patient eligibility

About

The purpose of this randomized controlled clinical trial is to evaluate the clinical outcomes of Partial Coverage Restorations fabricated with zirconia-reinforced lithium silicate ceramic system compared to partial coverage restorations fabricated with lithium disilicate ceramic system.

Full description

This study is constructed to assess in patients with carious vital posterior teeth whether the use of Vita Suprinity® (VITA Zahnfabrik H. Rauter GmbH & Co.KG- Germany) Zirconia reinforced lithium silicate partial coverage restorations will result in higher survival rates and better patient related outcome scores compared to IPS-e.max® CAD (Ivoclar Vivadent AG, Schaan - Liechtenstein) lithium disilicate partial coverage restorations.

Enrollment: 46 patients

Sex: All

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Participants:
• Good oral hygiene, papillary bleeding index (PBI) < 35%.
• Positive patient acceptance to participate in the trial.

Teeth:

• Carious class II or MOD lesions
• Vital upper or lower posterior teeth with no signs of irreversible pulpitis.
• Normal occlusion
• Single tooth restoration (no edentulous space that requires fixed prosthesis)

Exclusion criteria

• Participants
• Pregnancy.
• Disabilities.
• Systemic disease or severe medical complications.
• Bad oral hygiene
• Heavy smoking.
• Xerostomia.
• Lack of compliance.
• Evidence of severe bruxism, clenching, or temporomandibular disorders.

Teeth:

• Deep carious defects (close to pulp, less than 1 mm distance).
• Periapical pathology or signs of pulpal pathology.
• Tooth hypersensitivity.
• Rampant caries.
• Non-vital or endodontically treated teeth.
• Sever periodontal affection.
• Tooth mobility

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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46 participants in 2 patient groups

Suprinity

Experimental group

Description:

Vita Suprinity® (VITA Zahnfabrik H. Rauter GmbH \& Co.KG- Germany) Zirconia reinforced lithium silicate PCRs

Treatment:

Other: Vita Suprinity

e.max

Active Comparator group

Description:

IPS-e.max® CAD (Ivoclar Vivadent AG, Schaan - Liechtenstein) lithium disilicate PCRs

Treatment:

Other: IPS e.max