Clinical Evaluation of Sinus Bone Graft in the Patients With Mucous Retention Cyst and/or Chronic Maxillary Sinusitis
Materials and Methods: This study was performed retrospectively to the 19 patients (17 males, 2 females) who were treated with dental implants from January 2008 to December 2010 at Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital. All patients had mucous retention cyst and/or chronic maxillary sinusitis before receiving the implant treatments. The mean age of the patients was 50 yrs old (39yr~71yr). 10 patients previously had mucous retention cyst and 12 patients already had experienced chronic sinusitis. These patients received sinus bone graft using a lateral approach technique. The fixtures of implants were installed in average of 21.85 weeks after the sinus bone graft, and the restorations were connected in average of 32.7 weeks after the implant installation. Status of the gingiva, marginal bone height measured by periodontal probing and the mobility of the implant were observed for 20.7 months after installation of the implants.
Results: Complications of sinus bone graft occurred in 6 patients: 10%( 1 out of 10 cases) of the patients with mucous retention cyst and 33%(4 of 12 cases) of the patients with chronic sinusitis. Complications were composed of 3 epistaxis and 2 pus discharge cases. All complications were subsided using antibiotic medication and conservative dressing. All implants in this study survived during the observation.
Conclusion: The sinus bone graft was performed to the patients who had mucous retention cyst and/or chronic sinusitis. The complications after the operation were subsided. The clinical prognosis was not affected by the types of the two diseases.