Overview
• the goal of this clinical trial is To evaluate the clinical effectiveness of bioflex crowns and zirconia crowns compared to stainless steel crowns when
- restoring primary molars 45 participant their age range between 6 and 8 years participated in this study. The participants are divided into three groups representing group (A) for Bioflx crown (n=15), group (B) for Zirconia crown (n=15) and group ( C) for Stainless steel crown(n=15).
Clinical success will be assessed according to the Modified United States Public Health Service Evaluation (USPHS) criteria regarding: crown retention ,marginal integrity, surface roughness and color change.
Also the periodontal health will be evaluated using gingival index and plaque index according to Silness and Loe. Moreover parental and child satisfaction
- will be evaluated
Eligibility
Inclusion Criteria:
- Children who are free from any systemic disease.
- Cooperative children (positive/ definitely positive) according to Frankl's behavior rating scale.
- Children with good to fair oral hygiene according to Loe and Silness plaque index.
- Primary molars with deep carious lesion, that are indicated for pulpotomy and crown.
- Primary molars having two-thirds of root structure left radiographically
- Parents' willingness to participate through informed written consent
Exclusion Criteria:
- Children with oral parafunctional habits.
- Primary molars with bifurcation involvement
- Presence of abscess or fistula related to the selected tooth
- Primary molars with insufficient crown structure