Clinical Evaluation of Polymethyl Methacrylate CAD/CAM Crowns Versus Prefabricated Zirconia Crowns in Primary Molars

Caries of Infancy Clinical Trial

Official title:

Clinical Evaluation of Polymethyl Methacrylate CAD/CAM Crowns Versus Prefabricated Zirconia Crowns in Primary Molars

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT06113770
• Other study ID #: 787/4375
• Status: Active, not recruiting
• Phase: N/A
• Start date: May 1, 2023
• Est. completion date: December 2023

Study information

• Verified date: November 2023
• Source: Al-Azhar University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

, in this studythe investigator will compare between ready-made zirconia crowns and Computer-aided design and Computer-aided manufacturing (CAD/CAM) polymethyl methacrylate (PMMA) crowns to overcome the disadvantages of ready-made zirconia crowns.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 17
• Est. completion date: December 2023
• Est. primary completion date: November 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 4 Years to 8 Years

Eligibility

A- Inclusion Criteria:

1. Primary molars indicated for crown restoration (pulp treated molars indicated for crown

2. Co-operative child (Frankel scale +ve and ++ve)

3. The age ranged from 4 to 8 years regardless of sex or socioeconomic background. B- Exclusion Criteria:-

1. Badly decayed non-restorable tooth indicated for extraction.

2. Patients with parafunctional habits like bruxism.

3. Systemic diseases with oral manifestation or blood diseases.

Related Conditions & MeSH terms

• Caries of Infancy

Intervention

Other:
• preparation of the tooth to receive ready made zirconia crown
Occlusal reduction 1 to 2 mm using flame bur . Open the interproximal contacts. The tooth should be reduced circumferentially by approximately 0.5-1.5mm . The preparation margin should be carefully extended and refined to a feather-edge approximately 1-2mm subgingivally . Crown size will be determined using try in kit .
• preparation of the tooth to receive CAD CAM PMMA custom made crown
Open the interproximal contacts . The tooth should be reduced circumferentially by approximately 0.5-1mm . The preparation margin should be carefully extended and refined to a feather- edge approximately 1-2mm subgingivally . Rubber base impression will be taken by BMS additional silicone kit to the prepared tooth and will be sent to the laboratory to be scanned and to design the crown . The final crown will be cemented using glass ionomer cement .

Locations

Country	Name	City	State
Egypt	AlAzharU	Cairo

Sponsors (1)

Lead Sponsor	Collaborator
Adel Sherif Mostafa Rehab

Country where clinical trial is conducted

Egypt, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Gingival condition	Löe & Silness gingival index	in 6 months
Secondary	gingival bleeding	Papilla Bleeding Index	6 months