دراسة سريرية لتقييم ثبات القلنسوات الذهبية المستخدمة مع الأجهزة فوق الجذور

الملخص EN

We carried out this clinical study on a sample of (30) patients which distributed randomly into three equal groups.

Overdentures constructed over two abutments in the lower arch (canine roots) and supported by ball precision attachments and gold copings grade (18,21,24) which one gold alloy used with each group.

Evaluation and comparison of overdentures of three different gold copings retention was performed during one year observation.

The results showed difference in the retention force of overdentures between the three gold copings alloys which the retention force was the highest in the overdentures of (18) gold alloys copings and it was the lowest in the overdentures of (24) gold alloys.