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

Not Applicable

• Conditions: Periodontitis
• Interventions: Device: Porcelain metal crown; Device: Zirconia crown

• Registration Number: NCT02461823
• Lead Sponsor: Rambam Health Care Campus

Brief Summary

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

Detailed Description

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 Timeline

• Status Verified: 2015-05
• Study First Submitted: 2015-05-14
• Study First Submitted QC: 2015-05-31
• Last Update Submitted: 2015-05-31
• Study Start: 2015-06
• Study First Posted: 2015-06-03
• Last Update Posted: 2015-06-03
• Primary Completion: 2016-06
• Study Completion: 2016-08

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
PFM Crown	Porcelain metal crown	A Porcelain metal crown will provided to patients.
Z Crown	Zirconia crown	A Zirconia crown will be provided to patients.

Primary Outcome Measures

Name	Time	Method
PgE2 ( Prostaglandin E2)	4 months	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.

Secondary Outcome Measures

Name	Time	Method
bone level	4 months	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.
Clinical attachment level	4 months	The clinical examination will include measurement of the Clinical attachment level around teeth
Pocket depth	4 months	The clinical examination will include measurement of Pocket depth around teeth
PIaque index	4 months	The clinical examination will include measurement of PIaque index( soft tissue deposite around teeth)
GIingival index	4 months	The clinical examination will include measurement of the GIingival index (gingival inflamation around teeth)