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KMID : 1025720180370010001
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Journal of Dental Implant Research
2018 Volume.37 No. 1 p.1 ~ p.5
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Clinical outcome of implants and sinus bone grafts in the case of maxillary sinusitis: retrospective clinical study
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Kim Sang-Yun
Kim Hyun-Suk
Ku Jeong-Kui
Kim Young-Kyun
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Abstract
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Purpose: To evaluate clinical outcome of implants and sinus bone grafts in maxillary sinusitis patients.
Materials and Methods: This study included 29 patients (59 implants) who contracted maxillary sinusitis before or after sinus bone graft or implantation. Treatment cases were categorized into 3 groups according to the time of sinusitis treatment, the bone graft and implantation; Group I (n=18): Maxillary sinusitis treated before bone graft and implantation, Group II (n=22): Maxillary sinusitis treated after bone graft, but before implantation, Group III (n=19): Maxillary sinusitis treated after bone graft and implantation. Among the groups, mean marginal bone loss (MBL), survival rate, sinus membrane perforation at bone graft, relationship with smoke, primary and secondary stabilities of implant were evaluated.
Results: During an average observation period of 70.58 months, Group II showed significantly more MBL than Group I and III (P＜.05). The implant survival rates of Group I (94.44±0.24%) and Group III (89.47±0.32%) were significantly higher than that of Group II (63.16±0.50%) (P＜.001). Group II showed dominant frequency in maxillary sinus membrane perforation at bone graft surgery. Group II also showed significantly lower primary stability (P＜.001), but no statistical difference in secondary stability when compared with the other groups. More smokers were in Group III (P＜.001), but no relations with MBL, survival rate and primary/secondary stabilities were found.
Conclusions: MBL and frequency of sinus membrane perforation were highest in the Group II, and its survival rate was significantly lower than the other groups. Early diagnosis and treatment of maxillary sinusitis before or after the graft and implantation showed better clinical outcome of dental implants.
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KEYWORD
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Bone graft, Implant, Maxillary sinusitis, Outcome
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