Background: The use of dental implants for replacing lost teeth and restoring the function, esthetics, and biological health of the oro-facial region has become widely used across all dental aspects due to the ability to successfully osseointegrate. Implant-based treatment has been proven to produce predictable and dependable results. A limited number of unsuccessful dental implants do exist. Nevertheless, resorption of the alveolar ridge after tooth loss may prevent the placement of an optimum prosthetic-driven implant. Therefore, documentation and analysis of the factors influencing osseointegration establishment are required to maximize the predictability of the procedure and minimize implant failures. Purpose: The aim if this study is to evaluate the survival/success rates of dental implants placed in bone augmented sites, and to evaluate the possible risk factors associated with early implant failure. Material and Methods: A 3-years retrospective cohort study with 87 implants placed in bone-augmented sites of 64 patients of both genders aged between 22 to 65 years. The research ethics committee of the Libyan International Medical University approved the proposal and the methodology of the study. All implants were performed by the oral surgeons, periodontists, and prosthodontists teaching staff at Libyan International Medical University. Data were collected and documentation of all cases with implants placed in augmented sites in a time frame of 2019 to 2022 with a least follow up period of 6 months. Results: The current study included a total of 64 participants with an age range of 30 to 60 years (mean age = 43.2 years, SD = 10.8 years). The distribution of patients based on sex and outcome did not show any significant associations (X2 = 0.009, df = 1, p = 0.924). However, a significant association was found between a history of diabetes and treatment outcome (X2 = 4.102, df = 1, p = 0.043), indicating a potential impact of diabetes on implant success.