Monolithic CAD/CAM Single Tooth Ceramic Crowns

Hacettepe University

Status: Completed

Conditions: Crowns (MeSH Unique ID: D003442), Single Tooth; Dental Porcelain (MeSH Unique ID: D003776)

Treatments: Other: Zirconium-reinforced glass ceramics(ZRGC),Lithium disilicate glass ceramics(LGC), Resin infiltrated glass ceramics(RIGC)

Study type: Interventional

Funder types: Other

Identifiers

NCT04474093

KA-16029

THD-2016-11741 (Other Identifier)

Details and patient eligibility

About

With the development of Computer Aided Design and Computer Aided manufacturing (CAD / CAM) systems, all ceramic restorations have been used with high success rates during the past 30 years in order to eliminate the disadvantages of metal ceramic restorations. Based on these developments, in every passing days new ceramic materials has been added to dental market. The aim of the present study was evaluating clinical results of single-tooth ceramic crowns in the posterior region produced from three different monolithic ceramic materials.

Enrollment: 36 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• 18 years old
• Individuals who have signed the informed consent form
• Periodontally stable patients
• Having devital teeth need to be restored in the posterior region
• Having natural dentition or minimally invasive restoration against the restored tooth.

Exclusion criteria

• Diagnosed patients with temporomandibular joint problems
• Insufficient supportive tooth tissue for restoration

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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36 participants in 3 patient groups

Zirconium-reinforced glass ceramics (ZRGC)

Active Comparator group

Description:

12 posterior single tooth crowns made from monolithic zirconium-reinforced glass ceramics(ZRGC). Restorations were evaluated prosthetic and periodontal criteria at baseline, after 6 and 12 months. While prosthetic evaluation was performed according to Modified US Public Health Service criteria; probing depth(PD), clinical attachment level(CAL), gingival bleeding time index(GBTI), gingival(GI) and periodontal index(PI) were used in periodontal evaluation.

Treatment:

Other: Zirconium-reinforced glass ceramics(ZRGC),Lithium disilicate glass ceramics(LGC), Resin infiltrated glass ceramics(RIGC)

Lithium disilicate glass ceramics (LGC)

Active Comparator group

Description:

Group 2: 12 posterior single tooth crowns made from monolithic lithium disilicate glass ceramics(LGC). Restorations were evaluated prosthetic and periodontal criteria at baseline, after 6 and 12 months. While prosthetic evaluation was performed according to Modified US Public Health Service criteria; probing depth(PD), clinical attachment level(CAL), gingival bleeding time index(GBTI), gingival(GI) and periodontal index(PI) were used in periodontal evaluation.

Treatment:

Other: Zirconium-reinforced glass ceramics(ZRGC),Lithium disilicate glass ceramics(LGC), Resin infiltrated glass ceramics(RIGC)

Resin infiltrated glass ceramics (RIGC)

Active Comparator group

Description:

12 posterior single tooth crowns made from monolithic resin infiltrated glass ceramics(RIGC). Restorations were evaluated prosthetic and periodontal criteria at baseline, after 6 and 12 months. While prosthetic evaluation was performed according to Modified US Public Health Service criteria; probing depth(PD), clinical attachment level(CAL), gingival bleeding time index(GBTI), gingival(GI) and periodontal index(PI) were used in periodontal evaluation.

Treatment:

Other: Zirconium-reinforced glass ceramics(ZRGC),Lithium disilicate glass ceramics(LGC), Resin infiltrated glass ceramics(RIGC)