• Title/Summary/Keyword: 상악동 거상술

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Morphological Analysis of the Sinus Lateral Wall using Computed Tomography (전산화단층촬영법을 이용한 상악동 측벽의 형태학적 분석)

  • Kim, Yong-Gun
    • Journal of Dental Rehabilitation and Applied Science
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    • v.27 no.3
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    • pp.285-292
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    • 2011
  • The purpose of thise study was to measure the thickness of the sinus lateral wall using computed tomography (CT), and to find the most suitable vertical position for lateral window opening prior to sinus elevation. Thirty patients requiring sinus elevation had CT images taken with Philips Brilliance iCT. The thickness of the sinus lateral wall was measured according to its vertical position against the sinus inferior border, and its mean was calculated through three repeated measurements. When measured 2 mm above the sinus inferior border (SIB+2), the thickness of the sinus lateral wall was observed to be more than 2 mm. When measured 3 mm above the sinus inferior border (SIB +3), the sinus lateral wall was less than 2 mm in thickness. It is recommended that the lateral wall window be made 3 mm above the sinus inferior border when performing sinus elevation using the lateral approach.

Success and survival rate of the implant with crestal sinus lift using S-reamer and gel-type graft material: A retrospective study by more 5-years follow check up (S-reamer와 겔 형태의 이식재를 이용한 치조정 접근법을 통한 상악동 거상술 임플란트의 성공률과 생존율: 5년 이상 추적 관찰을 통한 후향적 연구)

  • Kim, Jong Jin;Cho, Sung Am
    • The Journal of Korean Academy of Prosthodontics
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    • v.58 no.1
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    • pp.23-29
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    • 2020
  • Purpose: The purpose of this retrospective study was to evaluate the method using the S-reamer and gel-type graft material by the success rate and survival rate. Materials and methods: Implantation period was from 2008 to 2014, Follow check up year is 2019. There were 59 patients and 117 implants. All implants were placed in the posterior maxilla with the sinus lift. The patients population consisted of 34 men and 25 women, ranging from 19 to 75 years. The residual bone heights were from 1 mm to 6 mm. Sinus was perforated with S-reamer without membrane tearing and gel type bone graft material was used for membrane lifting and filling the space. all implants were placed simultaneously. Panoramic X-ray was taken. After 5 - 6 months healing period, final prostheses were restored. After more 5-years implant surgery, Panoramic X-ray was obtained and X-ray analysis and clinical examination were performed. Success criteria was referred to a Buser's success critera. All implants were classified to success implant, survival implant, failed implant. A success implant was satisfying success criteria, a survival implant was a implant that was acute infection with suppuration and bone loss, a failed implant was a implant that was mobile, removed. Results: Five implants were removed, and 4 implants had infected with bone loss. Survival rate was 95.7% and success rate was 92.3%. Conclusion: This retrospective study presented that this method with S-reamer and gel-type graft material was a successful treatment without membrane tear in the condition of 1-6 mm residual bone height.

Morphological Analysis of the Sinus Lateral Wall Using Cone-Beam Computed Tomography (콘빔형 전산화단층영상을 이용한 상악동 측벽의 형태학적 분석)

  • An, Seo-Young;Kim, Yong-Gun
    • Journal of Dental Rehabilitation and Applied Science
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    • v.28 no.4
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    • pp.349-357
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    • 2012
  • The purpose of this study was to measure the thickness of the sinus lateral wall using cone-beam computed tomography (CBCT), and to find the most suitable vertical position for lateral window opening prior to sinus elevation. Fifty three patients requiring sinus elevation had CBCT scans acquired by CB MercuRay (Hitachi, Medico, Tokyo, Japan) from July, 2010 to June, 2012. The thickness of the sinus lateral wall was measured according to its vertical position against the sinus inferior border (SIB), and its mean was calculated through two repeated measurements. The thickness of the sinus lateral wall was more than 2 mm at 2 mm above the sinus inferior border (SIB+2), however, it was less than 2 mm at 3 mm above the sinus inferior border (SIB+3). In conclusion, it is recommended that the inferior border of lateral wall window be made 3 mm above the sinus inferior border during sinus elevation using the lateral approach considering the thickness of the sinus lateral wall.