Abstract
This multicenter study aimed to identify the different implant- and patient-related risk factors for long-term short dental implant success. Through a retrospective chart review of three centers, patient information regarding demographic variables, smoking habits, history of periodontitis, systemic diseases, and medications in addition to the parameters for short implant placement including implant manufacturer, design, anatomical location, diameter and length, and type of placement was collected. For statistical analysis, univariate regression models were used at the implant and patient levels. A total of 460 short implants placed in 199 patients followed up for up to 9 years were reviewed. Survival rates of the short implants were 95.86% and 92.96% and success rates were 90% and 83.41% for implant- and patient-based analysis, respectively. Peri-implantitis was reported as the primary cause of short dental implant failure (34/46, 73.91%). Univariate regression models revealed that female sex was strongly related to short implant success. In addition, smoking and history of periodontitis were found to have a significant negative influence on short implant success at the implant and patient levels. Taken together, these results support the use of short implants as a predictable longterm treatment option; however, smoking and history of periodontitis are suggested to be the potential risk factors for short implant success. Therefore, clinicians need to assess these potential risk factors and make treatment decisions accordingly.
Highlights
The use of standard dental implants has become a highly predictable and effective treatment modality for the rehabilitation of complete and partial edentulism.[1,2,3] Several longitudinal studies have reported high survival rates of approximately 89%–96% over a 10-year period in various patient populations using different dental implant systems
Lower but acceptable success rates varying between 52% and 79% were found in these studies based on the criteria selected for
The use of short implants is considered a major contribution to the field of implant dentistry and is a novel therapeutic option for patients with severe alveolar resorption.[9]
Summary
The use of standard dental implants has become a highly predictable and effective treatment modality for the rehabilitation of complete and partial edentulism.[1,2,3] Several longitudinal studies have reported high survival rates of approximately 89%–96% over a 10-year period in various patient populations using different dental implant systems. Lower but acceptable success rates varying between 52% and 79% were found in these studies based on the criteria selected for. Implant success measurement.[4,5,6,7] in severe alveolar resorption, standard-length implant (≥10 mm) placement is not possible without additional surgical interventions including bone grafting, sinus floor augmentation, distraction osteogenesis, mandibular nerve transposition, zygomatic implant placement, and transmandibular implant placement These procedures are associated with increased surgical morbidity, prolonged treatment times, and higher cost.[8,9,10] the use of short implants is considered a major contribution to the field of implant dentistry and is a novel therapeutic option for patients with severe alveolar resorption.[9] the predictability of short implants was initially controversial because of decreased bone-to-implant contact,[11] several studies have reported short implants to have survival rates similar to those of standard-length implants.[12,13,14]
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