Objectives: To investigate the effects of bisphosphonates (BP) on alveolar bone and dental implant therapy in women who have gone through menopause. Materials and method: In the current study, twenty two postmenopausal women who had placement of at least one tooth implant within the preceding five years took part. Eleven participants were divided into 2 groups: Group i was given BP medicine for two years, while group ii received parathyroid hormone (PTH). For both groups, measurements of thickness and bone mineral density (BMD) were made. Result: Group ii had 5% of dental implant failures, compared to 5% in group i. The BMD of cortical bone in groups i and ii was 1425 ± 114 mg/mL and 1002 ± 76 mg/mL, respectively. Both groups' cancellous and cortical bone densities were statistically significant. In contrast, cortical bone thickening was negligible. Conclusion: The bone mineral density of the cancellous and cortical bones declined in both groups. The thickness of cortical bone increased with continuing use of BPs.