Bidra AS, et al. - In this systematic review, researchers evaluated the existing scientific evidence to know whether healing abutments and cover screws for dental implants can be efficiently re-sterilized for reuse, as well as to determine whether there have been any reported adverse biological or mechanical effects on implants, or harm to patients with the reuse of healing abutments or cover screws. Using a systematic search process using the PubMed search engine and Cochrane database, an electronic search of the English language scientific literature was performed independently by multiple investigators. There were no literature studies that reported any adverse effects on dental implants such as infections, bone loss, mechanical problems, implant failure, or patient damage, through reuse of healing abutments or cover screws. Limited proof indicates that routine techniques used to clean and sterilize used titanium healing abutments may not result in contaminants being removed completely. However, the biological or mechanical implications of this finding have yet to be determined as there are currently no reports in the literature relating to any adverse effects on dental implants or damage to patients through reuse of healing abutments or cover screws. Nevertheless, due to the popular clinical practice of reusing healing abutments to reduce costs for clinicians and patients, it is necessary to avoid indiscriminate reuse of healing abutments until further supporting evidence is established.