Stomatology ›› 2022, Vol. 42 ›› Issue (8): 717-722.doi: 10.13591/j.cnki.kqyx.2022.08.008

• Clinical Research • Previous Articles     Next Articles

Clinical analysis of osteotome sinus floor elevation without bone grafting in limited alveolar bone of posterior maxilla

CHEN Donglei, HAO Dan, GE Weiyan, KONG Qin, GUO Haibo   

  1. Department of Implantology, Affiliated Nantong Stomatological Hospital of Nantong University, Nantong Stomatological Hospital, Nantong 226000, China
  • Revised:2022-01-26 Online:2022-08-28 Published:2022-08-30

Abstract: Objective To evaluate the clinical effect of osteotome sinus floor elevation (OSFE) and simultaneous implant placement in limited alveolar bone of posterior maxilla without bone grafting when residual bone height (RBH) was about 4 mm. Methods A total of 46 patients (51 implants) from 2017 to 2019 were selected. Patients were divided into three groups (without bone grafting group (21), bone grafting group (15) and concentrated growth factor (CGF) group(15)). Changes of bone increment, implant stability quotient (ISQ), mechanical and biological complications of implants were tested and observed immediately after surgery, 6 months, 1 year and 2 years after surgery. Patient satisfaction questionnaire was conducted immediately after surgery and 2 weeks later. SPSS 21.0 software was used for statistical analysis of data. Results There was no significant difference in ISQ value among the three groups immediately or 6 months after surgery (P>0.05). In terms of maxillary sinus bone increment, there was statistically significant difference from data before surgery in three groups (P<0.05), and the increment in the bone graft group and CGF group was greater than that in the non-graft group, with statistically significant difference (P<0.05). In the follow-up questionnaire, patients were more satisfied with osteotome sinus floor elevation without bone grafting, and the difference was statistically significant (P<0.05). Conclusion When the RBH is about 4 mm in the maxillary posterior region, osteotome sinus floor elevation without bone grafting has good clinical effects and is more easily accepted by patients.

Key words: osteotome sinus floor elevation, residual bone height, bone graft, short implant

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