The aim of the study was to access the stability and marginal bone loss after early loading of nano coated hydroxyapatite implants in posterior maxilla.
Methodology: This study was conducted on nine patients with at least a missing one maxillary posterior tooth. Ten Nano-coated hydroxyapatite implants (ETIII NH implant by Hiossen) were inserted in nine patients, and then subjected to early loading according to the secondary stability readings taken by Osstell®. Implant stability was measured at time of implant insertion (T0), 4 (T1), 6 (T1 modified), weeks, and 4 months (T2) post-operative. Marginal bone height was measured 4 weeks (T0), and 4 month (T1) post-operatively by CBCT. Cone-beam computed tomography (CBCT) was performed in all patients before starting the treatment. 9 implants healed well except for one implant that failed due to infection.
Results: Secondary stability results after 6 weeks of implant incretion were sufficient enough for implant loading, there was significant difference (F= 12.642, DF 3, P value <0.001) between T0, T1, T1 modified, and T2. There was no effect on implant’s marginal bone, the difference between marginal bone level at H0 and H1 was non-significant, (P value 0.45).
Conclusion: Nano-coated hydroxyapatite implants are of good choice in posterior maxilla, they can be early loaded, and maintained marginal bone height at 4 months (No bone loss).