Immediate hollow versus solid screw implants augmented with bone graft in the extracted socket of hemisected mandibular molars: Clinical and radiographic study

Aim: To evaluate clinically and radiographically the validity of using hollow versus solid immediate screw implants in the socket of extracted root of hemisected mandibular molars augmented with Cerasorb in the treatment of advanced perioendo lesion affecting mainly one root. Materials methods: Twenty patients aged 20-40 suffered from perio-endo lesions were randomly classified into two groups according to the implant type. Group A: treated with root canal treatment (RCT), hemisection, immediate one piece hollow screw implant and cerasorb. Group B: treated with RCT, hemisection, immediate one piece solid screw implant and Cerasorb. The implants were followed up clinically and radiographically at baseline, 6, 12 15 months. Results: A statistically non significant improvement in clinical results of both groups in periodontal indices including mobility index (MI), sulcus bleeding index (SBI), probing pocket depth around the implant (PPD), and peri-implantitis (PII) at evaluation periods 6, 12 and 15 months was recorded. On the other hand the radiographic results showed significant difference between group A versus group B in mean gray level bone mass using periapical radiography and Hounsfield units in CT scan. Conclusion: Immediate one piece (hollow or solid) implantation and augmentation with Cerasorb in the socket of extracted root of lower hemisected molars resulted in favorable clinical results with success rate up to 100% in follow up period extended up to 15 months.