Intentional penetration of dental implants into the maxillary sinus: a retrospective study


  • Omed Ikram Shihab Department of Oral and Maxillofacial Surgery, College of Dentistry, Hawler Medical University, Erbil, Iraq.



Dental implant, Maxillary sinus, Complications


Background and objective: Perforation of the maxillary sinus by a dental implant is an issue of concern by many dental implant clinicians. This study aimed to assess the success rate and consequences of dental implants emerging into the maxillary sinus.

Methods: The maxillary sinus was intentionally perforated for dental implant placement in 35 patients with reduced posterior maxillary bone height (4 mm or more). A total of 70 implants engaged bicortically and emerged into the sinus. Nineteen female and 16 male patients were involved in the study. The patients were followed up for sinus complications and dental implant success.

Results: From the total, only two implants were failed; one during gingival former placement and the other after loading by one year. No patient presented with sinusitis clinically and radiographically. Three patients developed epistaxis just on the day of surgery and became well after on.

Conclusion: Within the limits of this study, dental implant emergence into healthy maxillary sinus is considered a safe and successful procedure.


Metrics Loading ...


Cordioli G, Mazzocco C, Schepers E, Brugnolo E, Majzoub Z. Maxillary sinus floor augmentation using bioactive glass granules and autogenous bone with simultaneous implant placement. Clinical and histological findings. Clin Oral Implants Res 2001; 12:270–8.

Van den Bergj JP, ten Ruggenkate CM, Disch FJ, Tuinzing DB. Anatomical aspects of sinus floor elevations. Clin Oral Implants Res 2000; 11:256-5.

Tatum H. Maxillary and sinus implant reconstruction. Dent Clin North Am 1986; 30: 207–29.

Chanavaz M. Maxillary sinus: anatomy, physiology, surgery, and bone grafting related to implantology - eleven years of surgical experience (1979-1990). J Oral Implantol 1990; 16:199–209.

Shlomi B, Horowitz I, Kahn A, Dobriyan A, Chaushu G. The effect of sinus membrane perforation and repair with Lambone on the outcome of maxillary sinus floor augmentationa radiographic assessment. Int J Oral Maxillofac Implants 2004; 19:559–62.

Barone A, Santini S, Sbordone L, Crespi R, Covani U. A clinical study of the outcomes and complications associated with maxillary sinus augmentation. Int J Oral Maxillofac Implants 2006; 21(1):81–5.

Abi Najm S, Malis D, El Hage M, Rahban S, Carrel JP, Bernard JP. Potential adverse events of endosseous dental implants penetrating the maxillary sinus: long-term clinical evaluation. Laryngoscope 2013; 123(12):2958–61.

Weijian Z, Binke C, Xin L, Guowu MA. Experimental study on penetration of dental implants into the maxillary sinus in different depths. J Appl Oral Sci 2013; 21(6):560–6.

Nooh N. Effect of schneiderian membrane perforation on posterior maxillary implant survival. Journal of International Oral Health 2013; 5(3): 28–34.

Givol N, Taicher S, Halamish-Shant T, Chaushu G. Risk management aspects of implant dentistry. Int J Oral Maxillofac Implants 2002; 17:258–62.

Berengo M, Sivolella S, Majzoub Z, Cordioli G. Endoscopic evaluation of the bone-added osteotome sinus floor elevation procedure. Int J Oral Maxillofac Surg 2004; 33:189–94.




How to Cite

Shihab, O. I. (2017). Intentional penetration of dental implants into the maxillary sinus: a retrospective study. Zanco Journal of Medical Sciences (Zanco J Med Sci), 21(1), 1536–1539.



Original Articles