NCT06113770

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

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 17 (estimated)
• Sponsor: Adel Sherif Mostafa Rehab · Academic / Other
• Sex: All
• Age: 4 Years – 8 Years
• Healthy volunteers: Accepted

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.

Conditions

• Caries of Infancy

Interventions

Type	Name	Description
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 .
OTHER	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 .

Timeline

• Start date: 2023-05-01
• Primary completion: 2023-11-01
• Completion: 2023-12-01
• First posted: 2023-11-02
• Last updated: 2023-11-03

Locations

1 site across 1 country: Egypt