Does Caffeine Affect Dental Implant Stability? A Prospective Cohort Study.

STATEMENT OF THE PROBLEM

Caffeine intake affects bone metabolism through inhibition of osteoblast proliferation.

PURPOSE

This study aims to assess the effect of caffeine consumption on implant stability in the healing period of patients.

MATERIALS AND METHOD

A prospective cohort study is designed to assess implant stability in the posterior of the maxilla. Patients were divided into two groups based on daily caffeine intake as group 1 with consumption of 400 mg/daily caffeine or more, and group 2 with consumption of 100 mg/daily caffeine or less. The implant stability was measured by resonance frequency analysis (RFA). The mean implant stability quotients (ISQs) were calculated. RFA measurements were made at 4, 6 and 8 weeks after implant placement.

RESULTS

A total of 102 patients were studied (51 in each group). The mean of ISQ was 43.49± 2.32 in the group 1 and 42.78±2.34 in the group 2 at four weeks after insertion. The mean of ISQ was 50.86±3.06 in group 1 and 51.37±2.44 in the group at six weeks after implant placement. At eight weeks after implant surgery, the mean of ISQ was 56.78±3.77 in the group 1 and 57.84±1.82 in the group 2. The mean of ISQ between the two groups at 4, 6 and 8 weeks after implant placement was not statistically different. (= 0.13, = 0.36 and = 0.08 respectively) The repeated measure test indicated a similar increase in ISQ in various study times in the two studied groups (=0.47, df=1, F=0.52).

CONCLUSION

Acquired data suggest that caffeine intake may not have a negative effect on implant stability in the healing period at the posterior of the maxilla.