Sandwich technique을 이용한 하악골 증대술의 치험 보고 (Piezoelectric vertical bone augmentation using sandwich technique in atrophic mandible: Two cases report)

서지정보

· 발행기관 : 대한악안면성형재건외과학회
· 수록지 정보 : Maxillofacial Plastic Reconstructive Surgery / 30권 / 3호 / 276 ~ 282페이지
· 저자명 : 이지수, 이정광, 이현진, 안미라, 손동석

초록

Objective: This is to report the efficacy of the sandwich technique for bone augmentation in a moderate
atrophic posterior mandible through clinical and histological results in two cases.
Subjects and Method: Two patients selected had moderate bone resorption in left lower edentulous
area. Sandwich osteotomy using the piezosurgery was performed and the osteomized alveolar segments
were elevated by 6mm in each two patients. The interpositional mineral allograft materials were inserted
in the atrophic posterior mandibles. After four months healing period, bone biopsies in the grafted areas
and placement of dental implants were performed. In both cases, panoramic views were taken preoperatively
to measure the alveolar bone height for diagnosis, to monitor patient healing, and to evaluate bone
healing and bone gain.
Results: Sufficient vertical bone height was gained by using the sandwich technique and implants were
placed successfully. In radiological evaluation, there was minimal resorption of bone height after the second
operation and in histomorphometric evaluation, they showed favorable new bone formation without inflammation
in the grafted areas.
Conclusion: The sandwich technique can be an effective choice for augmenting vertical bone height in
the atrophic mandible. More of cases and long term follow-up are needed to evaluate bone resorption and
implant prognosis.

영어초록

Objective: This is to report the efficacy of the sandwich technique for bone augmentation in a moderate
atrophic posterior mandible through clinical and histological results in two cases.
Subjects and Method: Two patients selected had moderate bone resorption in left lower edentulous
area. Sandwich osteotomy using the piezosurgery was performed and the osteomized alveolar segments
were elevated by 6mm in each two patients. The interpositional mineral allograft materials were inserted
in the atrophic posterior mandibles. After four months healing period, bone biopsies in the grafted areas
and placement of dental implants were performed. In both cases, panoramic views were taken preoperatively
to measure the alveolar bone height for diagnosis, to monitor patient healing, and to evaluate bone
healing and bone gain.
Results: Sufficient vertical bone height was gained by using the sandwich technique and implants were
placed successfully. In radiological evaluation, there was minimal resorption of bone height after the second
operation and in histomorphometric evaluation, they showed favorable new bone formation without inflammation
in the grafted areas.
Conclusion: The sandwich technique can be an effective choice for augmenting vertical bone height in
the atrophic mandible. More of cases and long term follow-up are needed to evaluate bone resorption and
implant prognosis.

참고자료

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