comparing bony changes around implants that will be joined by ametal framework either with electric weiling or with the conventional casting metal

joining multiple implants together in the edentulous arches is considered agood solution, using the conventional casting technique has many disadvantages due to lab errors and time and cost consuming on ,the other hand the study aims to owercome these disadvantages using electric welding metal framework.

Inclusion Criteria:

• Age range from 30 to 65 years old.
• Absence of any medical disorder that could complicate the Surgical phase or affect osseointegration.
• The patients must be completely edentulous.
• The patient must have enough bone height for implants minimum length of 10mm and a minimum diameter of 5 mm.
• Patients with good oral hygiene.
• Complete denture wearer.
• Adequate inter arch space for screw retained prosthesis.
• Absence of any intra-oral pathological condition.

Exclusion Criteria:

Patients with recent extraction(less than three months).

• Patients with inflamed ridge or candida infection.
• Patients with flappyridge.
• Parafunctional habits.