Long-term observation of immediately-installed implants after extraction: Retrospective clinical study

Yun

Maxillofac Plast Reconstr Surg

et al. 2020

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Background: The aim of this study was to evaluate the long-term clinical stability of implants with acid-etched surfaces sandblasted with alumina using retrospective analyses of the survival rate, success rate, primary and secondary stability, complications, and marginal bone loss of the implants. Methods: Patients who had implants placed (TS III SA, SS II SA, SS III SA, and U III SA) with SA surfaces from Osstem (Osstem Implant Co., Busan, Korea) at the Seoul National University Bundang Hospital, from January 2008 to December 2010 were selected for the study. Patients' medical records and radiographs (panorama, periapical view) were retrospectively analyzed to investigate sex, age, location of implantation, diameter, and length of the implants, initial and secondary stability, presence of bone grafting, types of bone grafting and membranes, early and delayed complications, marginal bone loss, and implant survival rate. Results: Ninety-six implants were placed in 45 patients. Five implants were removed during the follow-up period for a total survival rate of 94.8%. There were 14 cases of complications, including 6 cases of early complications and 8 cases of delayed complications. All five implants that failed to survive were included in the early complications. The survival of implants was significantly associated with the occurrence of complications and the absorption of bone greater than 1 mm within 1 year after prosthetic completion. In addition, the absorption of bone greater than 1 mm within 1 year after prosthetic completion was significantly associated with the occurrence of complications, primary stability, and implant placement method. Five cases that failed to survive were all included in the early complications criteria such as infection, failure of initial osseointegration, and early exposure of the fixture. Conclusions: Of the 96 cases, 5 implants failed resulting in a 94.8% survival rate. The failed implants were all cases of early complications such as infection, failure of initial osseointegration, and early exposure of the fixtures. Periimplantitis was mostly addressed through conservative and/or surgical treatment and resulted in very low prosthetic complications. Therefore, if preventive measures are taken to minimize initial complications, the results can be very stable.

Section: Discussionmentioning

confidence: 99%

The long-term evaluation of the prognosis of implants with acid-etched surfaces sandblasted with alumina: a retrospective clinical study

Yun

Maxillofac Plast Reconstr Surg

et al. 2020

Self Cite

“…In particular, the stability of the implant was excellent, with no cases of failed implants in delayed placement after bone grafting and a healing period. implants with SLA surfaces has been shown in several studies [3][4][5][6][7][8]. SA implants (Osstem Implant, Busan, Korea) were developed using SLA method, sandblasting and acid-etching using alumina.…”

mentioning

confidence: 99%

Long-term Evaluation of the Prognosis of Super Hydrophilic Surface Treated CA Implants: a Retrospective Clinical Study

Kim²,

et al. 2022

Preprint

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Background: This study was performed to evaluate the long-term clinical efficacy of the CA implants (Osstem Implant, Busan, Korea), calcium-modified surfaced treated implants on acid-etched surfaces sandblasted with alumina.Methods: From January 2013 to December 2017, 495 implants were placed in a total of 203 patients. To further analyze the cases with observed follow-up longer than 5 years, 258 implants of 120 patients placed between 2013 and 2015 were also studied. Using medical records and radiographs (panoramas and periapical views), sex, age, location, fixture width and length of placed implants, presence or absence of bone graft, types of bone substitutes and membrane used for bone grafting, primary and secondary stability, initial and delayed complications, and marginal bone loss were investigated. The success rate and survival rate of the implants in each group were analyzed retrospectively based on the criteria suggested by Albrektsson et al.Results: Between 2013 and 2017, a total of 203 patients (100 males and 103 females) with an average age of 63.2 years underwent implant placement. A total of 495 implants was placed, and the average observation period was 44 months with a survival rate of 98.6%, success rate of 95.4%, and average final amount of marginal bone loss of 0.092mm. Between 2013 and 2015, with a follow-up longer than 5 years, 258 implants were placed in a total of 120 patients (61 males and 59 females), and the average observation period was 62 months. The survival rate was 97.3%, the success rate was 94.2%, and the average final marginal bone loss was 0.074mm.Conclusion: The CA implants manufactured with the improved surface treatment method exhibited a survival rate of 97.3% and a success rate of 94.2% over an average observation period of 62 months. The implants were not affected by most factors and had very high survival and success rates over a long period of observation. In particular, the stability of the implant was excellent, with no cases of failed implants in delayed placement after bone grafting and a healing period.

Long-term evaluation of the prognosis of super hydrophilic surface treated CA implants: a retrospective clinical study

et al. 2022

BMC Oral Health

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Background This study was performed to evaluate the long-term clinical efficacy of the CA implants (Osstem Implant, Busan, Korea), calcium-modified surfaced treated implants on acid-etched surfaces sandblasted with alumina. Methods From January 2013 to December 2015, 258 implants of 120 patients placed between 2013 and 2015 were retrospectively studied. Using medical records and periapical radiographs, sex, age, location, fixture width and length of placed implants, presence or absence of bone graft, types of bone substitutes and membrane used for bone grafting, primary and secondary stability, initial and delayed complications, and marginal bone loss were investigated. The success rate and survival rate of the implants in each group were analyzed retrospectively based on the criteria suggested by Albrektsson et al. Results Between 2013 and 2015, with a follow-up longer than 5 years, 258 implants with an average diameter of 4.63 mm (3.5–5.5 mm) and an average length of 9.94 mm (7.0–13.0 mm) were placed in a total of 120 patients (61 males and 59 females) with a mean age of 63.7 years for an average of 62 months of observation period. The survival rate was 97.3%, the success rate was 94.2%, and the average final marginal bone loss was 0.074 mm. Conclusion The CA implants manufactured with the improved surface treatment method exhibited a survival rate of 97.3% and a success rate of 94.2% over an average observation period of 62 months. The implants were not affected by most factors and had very high survival and success rates over a long period of observation. In particular, the stability of the implant was excellent, with no cases of failed implants in delayed placement after bone grafting and a healing period.