Risk factors associated with short dental implant success: a long-term retrospective evaluation of patients followed up for up to 9 years

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.

Factors influencing long‐term survival rates of implants placed simultaneously with lateral maxillary sinus floor augmentation: A 6‐ to 20‐year retrospective study

“…The present study showed that the cumulative survival rate of female was significantly higher than that of male. This result was similar to previous studies (Hasanoglu Erbasar, Hocaoglu, & Erbasar, ; Zupnik, Kim, Ravens, Karimbux, & Guze, ) which reported that implant failure was more prevalent in males than females. We considered that smoking habits may be a confounding factor for assessing the difference of implant survival according to gender.…”

The slow release of BMP-7 at a low dose accelerates dental implant healing in an osteopenic environment

“…(Chen et al, 2013;Kullar and Miller, 2019)], that suffer from diseases such as diabetes (Jude et al, 2010;Naujokat et al, 2016) or that practice nicotine abuse (Hasanoglu Erbasar et al, 2019;Kullar and Miller, 2019). Patients with such pathologies are considered at high-risk for implant therapy (Naujokat et al, 2016) and are, thus, often excluded from the beneficial implant-related therapeutic treatments, simply since bone-forming/healing capabilities are insufficient (Hammerle and Tarnow, 2018;Kullar and Miller, 2019;Obalum et al, 2013) under such conditions.…”

“…However, these patients can still be treated, provided that adequate instruction of patients is assured and that there is reasonable patient compliance. But there remain large patient groups that are confronted with higher failure risks of these treatment approaches, mainly due to problems associated with local lack of bone tissue [osteoporosis, osteopenia, atrophy (Bertl et al, 2015;Radi et al, 2018)], Paget-related metabolic bone disorders (Alonso et al, 2017;Hammerle and Tarnow, 2018) and also those suffering from impaired bloodvessel formation problems [reduced angiogenesis activities (Pearl and Kanat, 1988)]. Another group of patients that are generally excluded from implant treatment are those subject to some specific medical www.ecmjournal.org mimicking the growth-factor-containing mineralised bone matrix compartment (Hauschka et al, 1988;Hauschka et al, 1986;Linkhart et al, 1996).…”

Retrospective clinical analysis of risk factors associated with failed short implants

“…To further understand the risk factors related to short implants, various clinical studies have been conducted, though the results are controversial. 2,9 The reason might be the lack of large-sampled and evidence-based studies focused on the risk factors of short implants.…”