Abstract
Patients at the age of 40s and 50s were 60% of all implant cases and average number of implant was 2.4(man), and 1.9(woman). All cases were operated on mandible, 3 implants on anterior region and 38 implants on posterior region.
The major cause of tooth loss is dental caries(48.8%), followed by periodontal disease.
Most distribution of bone qaulity for mandibular implant site was type II(65.8%) and bone quantity was type B(75.6%).
The majority of implants were those of 11, 13mm in length(95%) and regular diameter in width(64%).
The 41(19 persons) Xive implants that were placed in the mandibular anterior and posterior region were all survival and showed a 100% 2 year cumulative survival rate.