Success of Zirconia and Composite Strip Crowns for Primary Incisors

Hacettepe University

Status: Completed

Conditions: Dental Caries in Children

Treatments: Device: composite strip crown; Device: Zirconia crown

Study type: Interventional

Funder types: Other

Identifiers

NCT05034003

anterior crown rest

Details and patient eligibility

About

The purpose of this study is to evaluate and compare the clinical and radiographic performance of zirconia and composite strip crowns bonded on primary incisors

Full description

Zirconia and composite strip crowns will be placed on at least two primary incisor teeth, in a split mouth design. A caries-free primary incisor tooth will be used as control. 100 patients will be included in the study. The teeth will be randomized into two groups according to the crown type.

Group 1: Zirconia crown 2: Composite Strip Crown 3: Control tooth. Plaque index, gingival index, crown retention, presence of restoration failure, gingival margin extension, color match of the crowns and pulpal health of the teeth will be clinically evaluated at baseline and 1., 6., 12., 18., 24. months. The restorations will be evaluated radiographically at 6., 12. and 18. months. Intra-oral photos will be taken directly after treatment and at control appointments.

The data will be analysed statistically using Fisher's Exact Test and pearson's chi-square test; and Log-rank and the Kaplan-Meier will be used to estimate survival percentages.

Enrollment: 25 patients

Sex: All

Ages: 3 to 5 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Patients and parent of the patients who accept to participate and sign the informed consent
• Patients who have at least two primary maxillary incisor with caries that require crown restoration
• Teeth that have healthy lamina dura and periodontal ligament
• Teeth with no mobility and enough root length
• Patients that have good cooperation to the procedure

Exclusion criteria

• Patients and parent of the patients who don't accept to participate and sign the informed consent
• Teeth that are previously restored
• Patients who are uncooperative
• Teeth that doesn't have opposing primary incisors
• Patients who have bruxism or deep-bite
• Teeth that are close to be erupted
• Teeth that have vital or non-vital pulp therapy

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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25 participants in 3 patient groups

zirconia crowns

Experimental group

Description:

Zirconia crowns placed on primary incisor teeth

Treatment:

Device: Zirconia crown

composite strip crowns

Experimental group

Description:

composite strip crowns placed on primary incisor teeth

Treatment:

Device: composite strip crown

Control tooth

No Intervention group

Description:

Caries-free primary incisor tooth