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Versatility of Basal Cortical Screw Implants with Immediate Functional Loading
Hrushikesh Gosai1, Sonal Anchlia1, Kiran Patel2
1Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Asarwa, Ahmedabad, Gujarat India.
Background:
The purpose of this study is to evaluate the survival rate of the basal cortical screw (BCS) implant system inserted in healed edentulous ridges (E) or extraction sockets (ES) with immediate loading functional protocol in varying clinical situations.
Methods:
A total of 125 BCS implants were placed in 14 patients, immediately loaded and observed for 20.07(± 4.23) months. Ninety-four were placed in E sites and 31 were placed in ES sites. They were evaluated for bone loss, soft tissue shrinkage around the prosthesis, improvement in quality of life (QOL), and their survival after 1 year.
Results:
Total of 121/125(96.8%) implants survived while 4/125(3.2%) failed at the end of follow-up. Average bone loss after 1 year was 0.33 mm (E) and - 1.57 mm (ES), average soft tissue shrinkage was 0.50 mm (E) and 1.42 mm (ES) and average Patient's Global Impression of Change (PGIC) scale score was 6.36(± 0.63) at 1 year. The complications observed were mobility {3(2.4%)}, pain/discomfort {1(0.8%)} and fracture of abutment at the neck {1(0.8%)}, prosthesis loosening {2(9%)} and requirement of relining {3(13%)}. No periimplantitis was observed.
Conclusion:
This is the only study to report the marginal bone loss and soft tissue changes around BCS implants and an index-based improvement in QOL of such patients. The BCS implant system with immediate functional loading protocol is a versatile modality to rehabilitate a single tooth, a segment or a full arch with healed ridges as well as extraction sites; it gives high success rate and minimal complications.
