THE EFFECT OF RECIPROCAL ARM ON THE SUPPORTING STRUCTURES OF THE ABUTMENTS IN CASES RETAINED BY UNILATERAL ATTACHMENT

Document Type : Original Article

Author

Lecturer, Prosthodontics Dept. Faculty of Oral and Dental Medicine Future University, Cairo, Egypt.

Abstract

Ten patients with kennedy class I classification utilizing OT unilateral extracoronal attachment were randomly divided in two groups using split mouth research design. Group I (without bracing arm) and group II (with a bracing arm on a prepared ledge at the survey line of the abutments). Radiographic evaluation of the abutments was made at time of denture insertion, 6months, 12months, 18 months, and 30 months after denture insertion to measure the bone height changes around the abutments. The results obtained showed a statistically significant difference in bone loss around the abutment teeth between the two groups. In Conclusion patients rehabilitated with OT unilateral extracoronal attachment with a bracing arm showed less vertical bone loss around the abutments

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