Author/Authors :
Aoki, Naofumi Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Kanayama, Takeo Hakata Dental Clinic, Fukuoka, Japan , Maeda, Michinori Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Horii, Koichiro Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Miyamoto, Hironori Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Wada, Keinoshin Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Ojima, Yasutaka Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Tsuchimochi, Tsukasa Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan , Shibuya, Yasuyuki Department of Oral Maxillofacial Surgery - Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
Abstract :
In sinus floor augmentation of an atrophic posterior maxilla, platelet-rich fibrin (PRF) has been used as a graft material. We herein
report two cases with histological evaluations of PRF after the surgery. The first case was a 28-year-old female with an atrophic right
posterior maxilla who was treated with sinus floor augmentation and simultaneous implant placement using PRF as the sole graft
material in our hospital. Twenty-four months after surgery, the implant was unfortunately removed because of occlusal overloading
by parafunctional habits. During implant replacement, a tissue sample was obtained from the site of augmentation with PRF and was
evaluated histologically. The second case was a 58-year-old man with severe alveolar atrophy of the right maxilla who underwent
lateral sinus augmentation using only PRF in a two-stage procedure in our hospital. Samples were obtained at the second-stage
surgery and histological examinations were performed. As a result, new bone formation was confirmed histologically in both cases.
Our findings show that the use of PRF as a graft material during sinus floor augmentation induces natural bone regeneration
Keywords :
Histological Examinations , Sinus Augmentation , Platelet-Rich , Fibrin Alone
