Survival of dental implants in patients with oral cancer treated by surgery and radiotherapy: a retrospective study

BMC Oral Health

Antonella Polimeni¹  Giorgio Guarino¹  Tina Gentile¹  Stefano Di Carlo¹  Valentino Valentini¹  Edoardo Brauner¹  Gabriele Di Carlo¹  Matteo Saccucci¹  Giorgio Pompa¹ 

[1] Department of Oral and Maxillofacial Science, Sapienza University of Rome, Via Caserta 272/A, Rome, Italy

关键词: Radiation;    Osseointegration;    Dental implants;   

Others  :  1118186
DOI  :  10.1186/1472-6831-15-5

 received in 2014-06-23, accepted in 2015-01-14,  发布年份 2015

【 摘 要 】

Background

The aim of this retrospective study was to evaluate the survival of dental implants placed after ablative surgery, in patients affected by oral cancer treated with or without radiotherapy.

Methods

We collected data for 34 subjects (22 females, 12 males; mean age: 51 ± 19) with malignant oral tumors who had been treated with ablative surgery and received dental implant rehabilitation between 2007 and 2012. Postoperative radiation therapy (less than 50 Gy) was delivered before implant placement in 12 patients. A total of 144 titanium implants were placed, at a minimum interval of 12 months, in irradiated and non-irradiated residual bone.

Results

Implant loss was dependent on the position and location of the implants (P = 0.05–0.1). Moreover, implant survival was dependent on whether the patient had received radiotherapy. This result was highly statistically significant (P < 0.01). Whether the implant was loaded is another highly significant (P < 0.01) factor determining survival. We observed significantly better outcomes when the implant was not loaded until at least 6 months after placement.

Conclusions

Although the retrospective design of this study could be affected by selection and information biases, we conclude that a delayed loading protocol will give the best chance of implant osseointegration, stability and, ultimately, effective dental rehabilitation.

【 授权许可】

   
2015 Pompa et al.; licensee BioMed Central.

【 图 表 】

Figure 2.

Figure 2.

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