Arwa Mabrouk Issa, Nadia A Abbas And Ahmad Fayyad,

ABSTRACT
This Study Aimed To: Compare The Biting Force By Using (I Load Sensor) In Class III Modification I Maxillary Partially Edentulous Patients Wearing Removable Partial Dentures Constructed From Two Different Injectable Thermoplastic Materials PEEK And BRE.FLEX (second Edition).

Materials and Methods: Forty Patients Having Kennedy Class III Modification I Maxillary Partially Edentulous Ridges With Fully Dentate Mandibular Arch Were Divided Into Two Equal Groups To Fabricate The Thermoplastic Materials. The First Group Received Bre.Flex Material. The Second Group Received PEEK Material. The Biting Force From Two Groups Were Measured By Using (I Load Sensor): At The Time Of Denture Insertion, After Two Weeks And After Four Weeks Of Denture Insertion. The Collected Data Were Tabulated And Statistically Analyzed.

Results: Showed That The Difference Between The Two Groups Was Statistically Significant Was Reported Between Two Groups Regarding Biting Force. Conclusion: Within The Bre.Flex Group, The Biting Force Has Increased As The Follow Up Period Increased. Within The PEEK Group, The Biting Force Has Decreased As The Follow Up Period Increased. The PEEK Group Showed A Greater Biting Force Than The Bre.Flex Group In All The Follow Up Periods And The Difference Was Statistically Significant.