الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Prosthetic obturator is the primary method employed in rehabilitating
larger maxillary defects. To improve stability and retention, osseo-integrated
implants are used in association with different attachment systems. This in-vitro
study was carried out to show the effect of locator and ball attachments on peri -
implant stresses induced during loading of implant retained unilateral total
maxillectomy obturator. A cast obtained from an impression of an edentulous patient
with total hemi-maxillectomy to simulate the real situation.