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논문 기본 정보

자료유형
학술저널
저자정보
Seung-Hyun Park (Yonsei University College of Dentistry) Jongseung Kim (Yonsei University College of Dentistry) Ui-Won Jung (Yonsei University College of Dentistry) Jae-Kook Cha (Yonsei University College of Dentistry)
저널정보
대한치의학회 Journal of Korean Dental Science Journal of korean dental science Vol.17 No.2
발행연도
2024.6
수록면
64 - 74 (11page)

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초록· 키워드

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This case report presents the long-term radiographic outcomes of a novel approach for simultaneous lateral augmentation and implant surgery. A 60-year-old male patient who required tooth extraction of the maxillary central and lateral incisors due to trauma visited the clinic. After tooth extraction, severe horizontal and vertical deficiencies occurred owing to atrophy of the alveolar ridge, and a simultaneous guided bone regeneration (GBR) procedure was planned along with the installation of two implants. In the present case, a modification of the conventional ‘sandwich technique’ was used by placing the mixture of autogenous bone chips and xenografts at the outermost layer to maximize the osteogenic potential at the coronal part of augmentation while applying solely xenografts at the inner layer. To enhance volumetric stability, an autogenous block of periosteum harvested from the maxillary tuberosity was incorporated between the two layers. Cone-beam computed tomography was performed at baseline and 3 years after the surgery to compare radiographic outcomes. Dehiscence after fixture installation was successfully observed at the re-entry of the surgery site. Three years after the surgery, average horizontal bone gains of 6.11 ㎜ and 4.12 ㎜ were observed in the maxillary central and lateral incisor areas, respectively. Healthy peri-implant mucosa and well maintained marginal bone levels were observed 8 years after the surgery, meeting the criteria for implant success. The findings of this case suggest that a substantial amount of horizontal bone gain can be obtained with a layered approach using autogenous bone materials and xenografts, highlighting the advantages of incorporating autogenous blocks into the simultaneous GBR procedure.

목차

Introduction
Materials and Methods
Results
Discussion
Conclusion
References

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