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J Korean Assoc Oral Maxillofac Surg. 2004 Aug;30(4):301-307. Korean. Original Article.
Lee JH , Kim MJ , Park JC , Kim YS , Ahn KM , Paeng JY , Kim SM , Myoung H , Hwang SJ , Seo BM , Choi JY , Choung PH .
Dept. of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University.
Dept. of Prosthodontics, College of Dentistry, Seoul National University.
Dept. of Oral and Maxillofacial Surgery, College of Dentistry, Kangnung National University.
Abstract

The flap considered at first for the reconstruction of large maxillary defect, especially mid-face defect, is scapular free flap, because it provides ample composite tissue which can be designed 3-dimensionally for orbital, facial and oral reconstruction. In case of maxillary defect involving hard palate, however, this flap has some limitations. First, its bulk prevents oral function and physio-anatomic reconstruction of nasal and oral cavity. Second, mobility and thickness of cutaneous paddle covering the alveolar area reduce retention of tissue-supported denture and give rise to peri-implantitis when implant is installed. Third, lateral border of scapula that is to reconstruct maxillary arch and hold implants is straight, not U-shaped maxillary arch form. To overcome these problems, new concept of step prefabrication technique was provided to a 27-year-old male patient who had been suffering from a complete hard palate and maxillary alveolar ridge defect. In the first stage, scapular osteomuscular flap was elevated, tailored to fit the maxillary defect, particulated autologous bone was placed subperiosteally to simulate U-shaped alveolar process, and then wrapped up with split thickness skin graft(STSG, 0.3mm thickness). Two months later, thus prefabricated new flap was elevated and microtransferred to the palato-maxillary defect. After 6 months, 10 implant fixtures were installed along the reconstructed maxillary alveolus, with following final prosthetic rehabilitation. The procedure was very successful and patient is enjoying normal rigid diet and speech.

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