Comparative efficacy of osteotome versus CAS kit-assisted indirect maxillary sinus lift and immediate implant placement in posterior atrophic maxilla: A clinico-radiological study

Abstract

Background: The aim of this study was to compare and evaluate clinical and radiological outcomes of conventional osteotome technique and CAS kit uses for indirect sinus lifting and immediate implant placement in atrophic posterior maxilla. Methods: A total of 20 patients aged <18 years in which 60% males and 40% of females were included in this study requiring implant prosthesis in atrophic (RBH > 3mm) posterior maxilla with a minimum width of 6mm were included in the study. They were randomly divided into two groups by computerised allocation into one group undergoing sinus lift with osteotome, and the other with CAS kit. Statistical analysis was done by using descriptive and inferential statistics. Qualitative data were analyzed using the Chi-square test. Dependent and independent variables were evaluated by the paired t-test and unpaired t-test respectively. A p<0.05 was set as the level of significance. Results: Mean duration for implant placement in the CAS group was 13.40±2.98 and in patients the osteotome group was 22.10±2.55. Mean primary stability in patients with CAS group was 44±6.14 and patients with osteotome group were 35.50±7.61. Mean amount of bone regeneration radiographic evaluation at three months in patients of CAS group was 4.99±0.86 and in patients of osteotome group was 5.59±1.21. The mean amount of bone regeneration radiographic evaluation at nine months in the CAS group was 5.53±0.77 and 6.34±1.11 in the osteotome group. Conclusions: CAS kit compared to osteotome was better in terms of operative time, primary stability, and marginal bone loss resulting in recommended modality.