The Influence of Porcelain Fused to Metal ( PFM) and Zirconia Crowns on Periodontal Health

Rambam Health Care Campus20 enrolled

Overview

Investigate the influence of the crown tye Porcelain fused to metal or Zirconia on periodontal health.

Porcelain fused to metal (PFM) has been used in dentistry for the last five decades. Zirconia (zirconium oxide, ZrO2) is the white crystalline powder oxide of the naturally occurring metal zirconium. Research of the medical utilization of zirconia dates back to the late 1960s. However, its utilization in dentistry did not start until the 1990s, when zirconia began to be used as a form of endodontic posts and implant abutments. The current literature contains studies that investigated the influence of zirconia implants and abutments on periodontal tissue, but to the investigators' knowledge, no work has been yet published which compares the influences of crown types on hard and soft tissues. This prospective study will be conducted in the Department of Periodontology and in the Department of Maxillofacial Rehabilitation at Rambam Health Care Campus.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

Conditions

Periodontitis

Interventions

Zirconia crownDEVICE

patients will receive a Zirconia crown, the Zirconia crown will cover the natural crown.

Porcelain metal crownDEVICE

patients will receive a porcelain fused to metal crown, the Porcelain metal crown will cover the natural crown.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 85 YearsHealthy volunteers:

Medical Language ↔ Plain English

inclusion criteria: 1. Patient age 18 - 85 years old 2. In need for one or more fixed partial prosthetic crown or bridge exclusion criteria: 1. Smokers 2. Active periodontal disease 3. history of compromising systemic disease 4. Allergy to materials used in the study 5. current drug abuse 6. Pregnant or intend to become pregnant 7. severe salivary gland dysfunction 8. Severe medical complications ( organ transplants, cancer, immunocompromised, or undergoing long-term antibiotic or steroid therapy )

Outcomes

Primary Outcomes

PgE2 ( Prostaglandin E2)

Gingival cervicular fluid samples will be attempt be planning Periotrom paper in the mesial and distal aspect of the experimental teeth. This samples will be assayed for PgE2 ( Prostaglandin E2) using Elyza kit. The concentration of PGE2 in gingival crevicular fluid will be examined around each tooth receiving a crown.

Time frame: 4 months

Secondary Outcomes

PIaque index

The clinical examination will include measurement of PIaque index( soft tissue deposite around teeth)

Time frame: 4 months

GIingival index

The clinical examination will include measurement of the GIingival index (gingival inflamation around teeth)

Time frame: 4 months

Pocket depth

The clinical examination will include measurement of Pocket depth around teeth

Time frame: 4 months

Clinical attachment level

The clinical examination will include measurement of the Clinical attachment level around teeth

Time frame: 4 months

bone level

Periapical radiography will be obtain using customized film holding with Vinylpolysiloxan bite registration. Measurements of alveolar bone level will be performed on the digital images by a single examiner, using custom-made software.

Time frame: 4 months

Central Contacts

Dr Ilan Hirsh, DMD

CONTACT

+972508800822 i_hirsh@rambam.health.gov.il

Dr Zvi Gutmacher, DMD

CONTACT

+97248542983 dr_zviu3@013net.net

Data from ClinicalTrials.gov

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