• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 2004년도 춘계학술대회
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• pp.80-80
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• 2004

• 대한치과보철학회:학술대회논문집
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• 대한치과보철학회 2004년도 춘계학술대회
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• pp.82-82
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• 2004

• The Journal of Advanced Prosthodontics
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• 제10권2호
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• pp.163-166
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• 2018

PURPOSE. The marginal bone loss of implants with laser treated surface was investigated after six weeks of loading after implant installation to the mandible molar area. MATERIALS AND METHODS. A total of 23 implants were placed in the edentulous molar area of the mandible: 13 implants were immediately loaded and 10 implants were early loaded. The implants used were made of titanium grade 23, screw shaped, 4.2 mm in diameter, and 10 mm in length. Patients were evaluated with resonance frequency analysis at implant fixture installation and 1, 2 (final prosthesis installation), 3, 5, 8, and 14 months later. X-rays were taken at 2 months after fixture installation and 1, 2, 3 years after to measure the marginal bone loss. RESULTS. The mean ISQ value measured at the implant installation was over 70 at all-time points. The average of marginal bone loss was average 0.33 mm. CONCLUSION. Immediate implant loading for laser treated implants would be possible.

• 대한치과보철학회지
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• 제56권2호
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• pp.126-133
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• 2018

Cone beam computerized tomography (CBCT)의 발전은 환자의 해부학적 구조를 3차원적으로 분석할 수 있게 하였다. Surgical guide는 CBCT와 CAD/CAM, 임플란트 진단 소프트웨어의 접목을 통해 미래의 보철물을 계획하고 적합한 위치에 임플란트를 식립할 수 있게 한다. Guided surgery를 통해 해부학적 구조물에 대한 침범을 최소한으로 줄일 수 있고 보다 재현성 있는 치료계획의 설정이 가능하다. 본 증례는 전악 무치악 환자에게 surgical guide를 이용하여 다수의 임플란트를 식립한 증례로 수술시간을 단축시킬 수 있었으며 임시 보철물을 미리 제작함으로써 보다 쉽게 immediate loading을 시행할 수 있었다. 환자는 개선된 안모와 저작기능에 만족하였다.

• 대한심미치과학회지
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• 제27권2호
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• pp.97-104
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• 2018

하악 전치부는 다른 구강 내 영역에 비해 높은 임플란트 성공률과 더 나은 접근성을 갖고 있다. 비록 부적절한 드릴링으로 인한 설측 피질골 천공 가능성과 설동맥 손상으로 인한 출혈 가능성이 있더라도 다른 부위와 비교했을 때 주요 해부학적 구조물이 적기 때문에 상대적으로 안전하다. 또한 상악 전치부와 비교했을 때 환자들이 심미적으로 덜 민감한 부위이다. 그러나 좁은 협설측 치조골 폭 때문에 이상적인 임플란트 식립 위치로의 식립은 상악 전치부만큼 어렵다. 이러한 하악 전치부에서 일체형 임플란트는 매우 유용한 치료방법이다. 하악 전치의 해부학적 치근형태와 얇은 치조골을 고려할 때, 임상적으로 3mm보다 큰 직경의 임플란트 식립은 어렵다. 본 증례는 하악 전치부 무치악 부위에서 일체형 임플란트의 식립과 즉시 부하를 동반하여 심미적인 보철물을 구현한 경우이다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제49권1호
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• pp.30-42
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• 2023

Objectives: While the reliability of immediate implant placement in the maxillary molar has been discussed, its significance is questionable. There have been no guidelines for case selection and surgical technique for successful treatment outcomes of immediate maxillary molar implants. Therefore, in this study, we classified alveolar bone height and socket morphology of the maxillary molar to establish guidelines for immediate implant placement. Materials and Methods: From 2011 to 2019, we retrospectively analyzed 106 patients with 148 immediate implants at the Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital. Inclusion and exclusion criteria were applied, and patient characteristics and treatment results were evaluated clinically and radiologically. Results: A total of 29 tapered, sand-blasted, large-grit, and acid-etched (SLA) surfaces of implants were placed in 26 patients. The mean patient age was 64.88 years. Two implants failed and were reinstalled, resulting in a 93.10% survival rate. Fluctuating marginal bone level changes indicating bone regeneration and bone loss were observed in the first year following installation and remained stable after one year of prosthesis loading, with an average bone loss of 0.01±0.01 mm on the distal side and 0.03±0.03 mm on the mesial side. Conclusion: This clinical study demonstrated the significance of immediate implant placement in maxillary molars as a reliable treatment with a high survival rate using tapered SLA implants. With an accurate approach to immediate implantation, surgical intervention and treatment time can be reduced, resulting in patient satisfaction and comfort.

• 한국임상수의학회지
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• 제20권2호
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• pp.207-211
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• 2003

This investigation aimed to determine the relative merit of osseointegration in immediate and delayed implantation in the dog mandible using radiography and bone scintigraphy. five adult mongrel dogs with a mean weight of 8.5 kg were used in this investigation. During the entire study period. all dogs were fed with a soft commercial diet and water ad libitum to minimize functional loading of the implant. Twenty titanium alloy systems 4 mm in diameter and 10 mm in length blasted with calcium phosphate were prepared for insertion. The second and third left mandibular premolars in each dog were extracted for the delayed implant insertion. Twelve weeks later, the second and third right mandibular premolars were extracted for the immediate implant insertion. Before the delayed and immediate implantation procedures and 0, 4, 8, and 12 weeks after the insertions, radiography and bone scintigraphy were conducted. Bone scans were obtained using a large field of view gamma camera equipped with a collimator about 3 hours after intravenous injection of Tc-99m-MDP to the dogs. All the dogs were evaluated weekly for inflammation, necrosis, and other of the bone or sort tissue. Significant macroscopic lesions were not detected. Radioisotope scintigraphy with Tc-99m-MDP hat proved to be a reliable method for measuring increased bone activity at specific skeleton tissue sites. In conclusion, osseointegration in peri-implant bone did not differ significantly between the immediate and delayed implant procedures during the experimental period. The immediate implant may be an alternative treatment of implant insertion in animals.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제35권4호
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• pp.276-279
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• 2009

The aim of this case study was to report the clinical outcome of immediate provisionalization using one-piece narrow diameter (3.0mm) implants in missing maxillary lateral or mandibular incisors. The present study included 36 patients who were treated with 62 one-piece narrow diameter implants. After implant placement, immediate provisional restorations were delivered. All implants showed favorable osseointegration and after progressive loading from 3 months to 9 months (average of 5 months), final restorations were completed without failure in all cases. A survival rate of 100 % (62 of 62) was observed up to 23 months of observation (average of 12.6 months).

• 대한치주과학회:학술대회논문집
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• 대한치주과학회 2004년도 제44회 종합학술대회 연제초록
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• pp.109-109
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• 2004

• Maxillofacial Plastic and Reconstructive Surgery
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• 제18권2호
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• pp.224-235
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• 1996

Early implantation before sufficient ossification has taken place usually results in osseointegartion failure due to reduced bone-fixture interface area. However, various studies have shown successful osseointegration results following immediate implants concurrently with GTR. The clinical trends have been to shorten the patients' edentulous state by immediate implantation, and reduce the alveolar bone resorption. However, it may be difficult to attain the complete soft tissue coverage of the sites, increasing the chance of infection. Furthermore, there may be more studies needed on the clinical behaviors of e-PTFE membranes, various modofications in the membrane materials and bone graft materials. Various animal and clinical studies have been reported on the successful osseointagration following immediate implantation, but the long-term follow-up studies are limited. The present study investigated 16 immediately-implanted implants with GTR therapy with or without calcium carbonate grafting on 11 patients 3 years after installation and 24-30 months after functional loading. Based on the clinical, radiographic and histologic findings, the following results have been attained. 1. Clinically, stability has been shown on all 16 implants throughout the investigated periods. 2. Radiologically, the alveolar bone loss has progressed up to the polished neck portion but not beyond it, suggesting the progressive osseointegration from the GTR therapy. 3. The GTR method used in the present study is easy to use clinically, and may be appied in the regeneration of ossoeous defects around implants and in the immediate implantation. 4. The difficulty in complete tissue coverage may be avoided by delaying the installation for 2 to 3 weeks after the extraction allowing certain degree of soft tissue healing.